NetworkStatsHistory.java revision 55a442e58262e253df965d652bd8219c8d1e72d3
175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey/* 275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Copyright (C) 2011 The Android Open Source Project 375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Licensed under the Apache License, Version 2.0 (the "License"); 575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * you may not use this file except in compliance with the License. 675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * You may obtain a copy of the License at 775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * http://www.apache.org/licenses/LICENSE-2.0 975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 1075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Unless required by applicable law or agreed to in writing, software 1175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * distributed under the License is distributed on an "AS IS" BASIS, 1275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * See the License for the specific language governing permissions and 1475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * limitations under the License. 1575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 1675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 1775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeypackage android.net; 1875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 19a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.IFACE_ALL; 20b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkeyimport static android.net.NetworkStats.SET_DEFAULT; 21a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.TAG_NONE; 22a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.UID_ALL; 2363d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.readFullLongArray; 2463d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.readVarLongArray; 2563d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.writeVarLongArray; 2663d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.Entry.UNKNOWN; 27a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStatsHistory.ParcelUtils.readLongArray; 28a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStatsHistory.ParcelUtils.writeLongArray; 2955a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkeyimport static android.text.format.DateUtils.SECOND_IN_MILLIS; 3063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkeyimport static com.android.internal.util.ArrayUtils.total; 31a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 3275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport android.os.Parcel; 3375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport android.os.Parcelable; 3469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkeyimport android.util.MathUtils; 3575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 3663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkeyimport com.android.internal.util.IndentingPrintWriter; 3763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 3875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.CharArrayWriter; 3975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.DataInputStream; 4075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.DataOutputStream; 4175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.IOException; 4255a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkeyimport java.io.PrintWriter; 4361ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkeyimport java.net.ProtocolException; 4475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.util.Arrays; 4561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkeyimport java.util.Random; 4675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 4775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey/** 4875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Collection of historical network statistics, recorded into equally-sized 4975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * "buckets" in time. Internally it stores data in {@code long} series for more 5075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * efficient persistence. 5175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * <p> 5275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Each bucket is defined by a {@link #bucketStart} timestamp, and lasts for 5375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * {@link #bucketDuration}. Internally assumes that {@link #bucketStart} is 5475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * sorted at all times. 5575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 5675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * @hide 5775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 5875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeypublic class NetworkStatsHistory implements Parcelable { 591b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey private static final int VERSION_INIT = 1; 6063d27a9233fed934340231f438493746084a681dJeff Sharkey private static final int VERSION_ADD_PACKETS = 2; 61558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey private static final int VERSION_ADD_ACTIVE = 3; 6275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 63558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_ACTIVE_TIME = 0x01; 64558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_RX_BYTES = 0x02; 65558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_RX_PACKETS = 0x04; 66558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_TX_BYTES = 0x08; 67558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_TX_PACKETS = 0x10; 68558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_OPERATIONS = 0x20; 69d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 7063d27a9233fed934340231f438493746084a681dJeff Sharkey public static final int FIELD_ALL = 0xFFFFFFFF; 7163d27a9233fed934340231f438493746084a681dJeff Sharkey 7263d27a9233fed934340231f438493746084a681dJeff Sharkey private long bucketDuration; 73d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private int bucketCount; 74d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] bucketStart; 75558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey private long[] activeTime; 76d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] rxBytes; 77a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey private long[] rxPackets; 78d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] txBytes; 79a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey private long[] txPackets; 8063d27a9233fed934340231f438493746084a681dJeff Sharkey private long[] operations; 8163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey private long totalBytes; 82d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 83d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public static class Entry { 8463d27a9233fed934340231f438493746084a681dJeff Sharkey public static final long UNKNOWN = -1; 8563d27a9233fed934340231f438493746084a681dJeff Sharkey 86d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long bucketDuration; 87558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public long bucketStart; 88558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public long activeTime; 89d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long rxBytes; 90a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public long rxPackets; 91d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long txBytes; 92a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public long txPackets; 9363d27a9233fed934340231f438493746084a681dJeff Sharkey public long operations; 94d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 9575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 96d2a458750e5a3d490af09cecb5c28370baf0a913Jeff Sharkey public NetworkStatsHistory(long bucketDuration) { 9763d27a9233fed934340231f438493746084a681dJeff Sharkey this(bucketDuration, 10, FIELD_ALL); 984a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey } 994a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey 1004a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey public NetworkStatsHistory(long bucketDuration, int initialSize) { 10163d27a9233fed934340231f438493746084a681dJeff Sharkey this(bucketDuration, initialSize, FIELD_ALL); 10263d27a9233fed934340231f438493746084a681dJeff Sharkey } 10363d27a9233fed934340231f438493746084a681dJeff Sharkey 10463d27a9233fed934340231f438493746084a681dJeff Sharkey public NetworkStatsHistory(long bucketDuration, int initialSize, int fields) { 10575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey this.bucketDuration = bucketDuration; 1064a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey bucketStart = new long[initialSize]; 107558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if ((fields & FIELD_ACTIVE_TIME) != 0) activeTime = new long[initialSize]; 10863d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_RX_BYTES) != 0) rxBytes = new long[initialSize]; 10963d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_RX_PACKETS) != 0) rxPackets = new long[initialSize]; 11063d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_TX_BYTES) != 0) txBytes = new long[initialSize]; 11163d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_TX_PACKETS) != 0) txPackets = new long[initialSize]; 11263d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_OPERATIONS) != 0) operations = new long[initialSize]; 1134a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey bucketCount = 0; 11463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = 0; 11563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 11663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 11763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public NetworkStatsHistory(NetworkStatsHistory existing, long bucketDuration) { 11863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey this(bucketDuration, existing.estimateResizeBuckets(bucketDuration)); 11963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey recordEntireHistory(existing); 12075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 12175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 12275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory(Parcel in) { 12375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketDuration = in.readLong(); 12475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = readLongArray(in); 125558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey activeTime = readLongArray(in); 126a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxBytes = readLongArray(in); 127a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxPackets = readLongArray(in); 128a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txBytes = readLongArray(in); 129a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txPackets = readLongArray(in); 13063d27a9233fed934340231f438493746084a681dJeff Sharkey operations = readLongArray(in); 13175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount = bucketStart.length; 13263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = in.readLong(); 13375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 13475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 135bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 13675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void writeToParcel(Parcel out, int flags) { 13775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey out.writeLong(bucketDuration); 13875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey writeLongArray(out, bucketStart, bucketCount); 139558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey writeLongArray(out, activeTime, bucketCount); 140d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey writeLongArray(out, rxBytes, bucketCount); 141a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey writeLongArray(out, rxPackets, bucketCount); 142d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey writeLongArray(out, txBytes, bucketCount); 143a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey writeLongArray(out, txPackets, bucketCount); 14463d27a9233fed934340231f438493746084a681dJeff Sharkey writeLongArray(out, operations, bucketCount); 14563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey out.writeLong(totalBytes); 14675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 14775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 14875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory(DataInputStream in) throws IOException { 14975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int version = in.readInt(); 15061ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey switch (version) { 1511b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey case VERSION_INIT: { 15261ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey bucketDuration = in.readLong(); 15363d27a9233fed934340231f438493746084a681dJeff Sharkey bucketStart = readFullLongArray(in); 15463d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes = readFullLongArray(in); 155a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxPackets = new long[bucketStart.length]; 15663d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes = readFullLongArray(in); 157a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txPackets = new long[bucketStart.length]; 15863d27a9233fed934340231f438493746084a681dJeff Sharkey operations = new long[bucketStart.length]; 15963d27a9233fed934340231f438493746084a681dJeff Sharkey bucketCount = bucketStart.length; 16063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = total(rxBytes) + total(txBytes); 16163d27a9233fed934340231f438493746084a681dJeff Sharkey break; 16263d27a9233fed934340231f438493746084a681dJeff Sharkey } 163558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey case VERSION_ADD_PACKETS: 164558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey case VERSION_ADD_ACTIVE: { 16563d27a9233fed934340231f438493746084a681dJeff Sharkey bucketDuration = in.readLong(); 16663d27a9233fed934340231f438493746084a681dJeff Sharkey bucketStart = readVarLongArray(in); 167558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey activeTime = (version >= VERSION_ADD_ACTIVE) ? readVarLongArray(in) 168558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey : new long[bucketStart.length]; 16963d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes = readVarLongArray(in); 17063d27a9233fed934340231f438493746084a681dJeff Sharkey rxPackets = readVarLongArray(in); 17163d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes = readVarLongArray(in); 17263d27a9233fed934340231f438493746084a681dJeff Sharkey txPackets = readVarLongArray(in); 17363d27a9233fed934340231f438493746084a681dJeff Sharkey operations = readVarLongArray(in); 17461ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey bucketCount = bucketStart.length; 17563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = total(rxBytes) + total(txBytes); 17661ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey break; 17761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 17861ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey default: { 17961ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey throw new ProtocolException("unexpected version: " + version); 18061ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 18161ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 182b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey 183b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey if (bucketStart.length != bucketCount || rxBytes.length != bucketCount 184b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey || rxPackets.length != bucketCount || txBytes.length != bucketCount 185b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey || txPackets.length != bucketCount || operations.length != bucketCount) { 186b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey throw new ProtocolException("Mismatched history lengths"); 187b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey } 18875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 18975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 19075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void writeToStream(DataOutputStream out) throws IOException { 191558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey out.writeInt(VERSION_ADD_ACTIVE); 19275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey out.writeLong(bucketDuration); 19363d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, bucketStart, bucketCount); 194558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey writeVarLongArray(out, activeTime, bucketCount); 19563d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, rxBytes, bucketCount); 19663d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, rxPackets, bucketCount); 19763d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, txBytes, bucketCount); 19863d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, txPackets, bucketCount); 19963d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, operations, bucketCount); 20075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 20175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 202bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 20375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public int describeContents() { 20475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return 0; 20575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 20675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 207d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public int size() { 208d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return bucketCount; 209d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 210d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 211d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long getBucketDuration() { 212d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return bucketDuration; 213d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 214d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 215434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public long getStart() { 216434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey if (bucketCount > 0) { 217434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return bucketStart[0]; 218434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } else { 219434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return Long.MAX_VALUE; 220434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 221434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 222434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 223434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public long getEnd() { 224434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey if (bucketCount > 0) { 225434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return bucketStart[bucketCount - 1] + bucketDuration; 226434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } else { 227434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return Long.MIN_VALUE; 228434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 229434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 230434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 231d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey /** 23263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey * Return total bytes represented by this history. 23363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey */ 23463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public long getTotalBytes() { 23563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey return totalBytes; 23663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 23763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 23863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey /** 23969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * Return index of bucket that contains or is immediately before the 24069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * requested time. 24169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey */ 24269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey public int getIndexBefore(long time) { 24369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey int index = Arrays.binarySearch(bucketStart, 0, bucketCount, time); 24469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (index < 0) { 24569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index = (~index) - 1; 24669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 24769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index -= 1; 24869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 24969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey return MathUtils.constrain(index, 0, bucketCount - 1); 25069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 25169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey 25269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey /** 25369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * Return index of bucket that contains or is immediately after the 25469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * requested time. 25569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey */ 25669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey public int getIndexAfter(long time) { 25769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey int index = Arrays.binarySearch(bucketStart, 0, bucketCount, time); 25869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (index < 0) { 25969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index = ~index; 26069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 26169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index += 1; 26269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 26369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey return MathUtils.constrain(index, 0, bucketCount - 1); 26469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 26569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey 26669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey /** 267d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey * Return specific stats entry. 268d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey */ 269d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public Entry getValues(int i, Entry recycle) { 270d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey final Entry entry = recycle != null ? recycle : new Entry(); 271d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey entry.bucketStart = bucketStart[i]; 272d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey entry.bucketDuration = bucketDuration; 273558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.activeTime = getLong(activeTime, i, UNKNOWN); 27463d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = getLong(rxBytes, i, UNKNOWN); 27563d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = getLong(rxPackets, i, UNKNOWN); 27663d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = getLong(txBytes, i, UNKNOWN); 27763d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = getLong(txPackets, i, UNKNOWN); 27863d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = getLong(operations, i, UNKNOWN); 279d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return entry; 280d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 281d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 28275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 28375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Record that data traffic occurred in the given time range. Will 28475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * distribute across internal buckets, creating new buckets as needed. 28575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 286a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey @Deprecated 287a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public void recordData(long start, long end, long rxBytes, long txBytes) { 288b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey recordData(start, end, new NetworkStats.Entry( 289b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, rxBytes, 0L, txBytes, 0L, 0L)); 290a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 291a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 292a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 293a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Record that data traffic occurred in the given time range. Will 294a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * distribute across internal buckets, creating new buckets as needed. 295a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 296a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public void recordData(long start, long end, NetworkStats.Entry entry) { 29763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long rxBytes = entry.rxBytes; 29863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long rxPackets = entry.rxPackets; 29963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long txBytes = entry.txBytes; 30063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long txPackets = entry.txPackets; 30163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long operations = entry.operations; 30263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 30363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey if (entry.isNegative()) { 304a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("tried recording negative data"); 3051b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey } 30663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey if (entry.isEmpty()) { 307367d15ab1a33b6159447fa8542d4fa8ff148371cJeff Sharkey return; 308367d15ab1a33b6159447fa8542d4fa8ff148371cJeff Sharkey } 3091b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey 31075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create any buckets needed by this range 31175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey ensureBuckets(start, end); 31275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 31375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // distribute data usage into buckets 314a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey long duration = end - start; 31569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final int startIndex = getIndexAfter(end); 31669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey for (int i = startIndex; i >= 0; i--) { 31775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curStart = bucketStart[i]; 31875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curEnd = curStart + bucketDuration; 31975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 32075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket is older than record; we're finished 32175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curEnd < start) break; 32275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket is newer than record; keep looking 32375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curStart > end) continue; 32475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 32575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long overlap = Math.min(curEnd, end) - Math.max(curStart, start); 326a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (overlap <= 0) continue; 327a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 328a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey // integer math each time is faster than floating point 32963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracRxBytes = rxBytes * overlap / duration; 33063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracRxPackets = rxPackets * overlap / duration; 33163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracTxBytes = txBytes * overlap / duration; 33263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracTxPackets = txPackets * overlap / duration; 33363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracOperations = operations * overlap / duration; 334a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 335558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey addLong(activeTime, i, overlap); 33663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.rxBytes, i, fracRxBytes); rxBytes -= fracRxBytes; 33763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.rxPackets, i, fracRxPackets); rxPackets -= fracRxPackets; 33863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.txBytes, i, fracTxBytes); txBytes -= fracTxBytes; 33963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.txPackets, i, fracTxPackets); txPackets -= fracTxPackets; 34063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.operations, i, fracOperations); operations -= fracOperations; 341a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 342a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey duration -= overlap; 34375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 34463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 34563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes += entry.rxBytes + entry.txBytes; 34675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 34775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 34875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 34919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * Record an entire {@link NetworkStatsHistory} into this history. Usually 35019862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * for combining together stats for external reporting. 35119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey */ 35219862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey public void recordEntireHistory(NetworkStatsHistory input) { 35370c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey recordHistory(input, Long.MIN_VALUE, Long.MAX_VALUE); 35470c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey } 35570c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey 35670c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey /** 35770c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * Record given {@link NetworkStatsHistory} into this history, copying only 35870c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * buckets that atomically occur in the inclusive time range. Doesn't 35970c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * interpolate across partial buckets. 36070c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey */ 36170c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey public void recordHistory(NetworkStatsHistory input, long start, long end) { 362a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry( 363b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0L); 36419862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey for (int i = 0; i < input.bucketCount; i++) { 36570c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey final long bucketStart = input.bucketStart[i]; 36670c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey final long bucketEnd = bucketStart + input.bucketDuration; 36770c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey 36870c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey // skip when bucket is outside requested range 36970c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey if (bucketStart < start || bucketEnd > end) continue; 370a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 37163d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = getLong(input.rxBytes, i, 0L); 37263d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = getLong(input.rxPackets, i, 0L); 37363d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = getLong(input.txBytes, i, 0L); 37463d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = getLong(input.txPackets, i, 0L); 37563d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = getLong(input.operations, i, 0L); 376a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 37770c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey recordData(bucketStart, bucketEnd, entry); 37819862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 37919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 38019862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 38119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey /** 38275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Ensure that buckets exist for given time range, creating as needed. 38375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 38475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey private void ensureBuckets(long start, long end) { 38575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // normalize incoming range to bucket boundaries 38675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey start -= start % bucketDuration; 38775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey end += (bucketDuration - (end % bucketDuration)) % bucketDuration; 38875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 38975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey for (long now = start; now < end; now += bucketDuration) { 39075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // try finding existing bucket 39175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int index = Arrays.binarySearch(bucketStart, 0, bucketCount, now); 39275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (index < 0) { 39375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket missing, create and insert 39475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey insertBucket(~index, now); 39575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 39975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 40075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Insert new bucket at requested index and starting time. 40175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 40275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey private void insertBucket(int index, long start) { 40375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create more buckets when needed 4044a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey if (bucketCount >= bucketStart.length) { 4054a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey final int newLength = Math.max(bucketStart.length, 10) * 3 / 2; 40675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = Arrays.copyOf(bucketStart, newLength); 407558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) activeTime = Arrays.copyOf(activeTime, newLength); 40863d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) rxBytes = Arrays.copyOf(rxBytes, newLength); 40963d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) rxPackets = Arrays.copyOf(rxPackets, newLength); 41063d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) txBytes = Arrays.copyOf(txBytes, newLength); 41163d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) txPackets = Arrays.copyOf(txPackets, newLength); 41263d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) operations = Arrays.copyOf(operations, newLength); 41375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 41475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 41575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create gap when inserting bucket in middle 41675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (index < bucketCount) { 41775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int dstPos = index + 1; 41875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int length = bucketCount - index; 41975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 42075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey System.arraycopy(bucketStart, index, bucketStart, dstPos, length); 421558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) System.arraycopy(activeTime, index, activeTime, dstPos, length); 42263d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) System.arraycopy(rxBytes, index, rxBytes, dstPos, length); 42363d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) System.arraycopy(rxPackets, index, rxPackets, dstPos, length); 42463d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) System.arraycopy(txBytes, index, txBytes, dstPos, length); 42563d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) System.arraycopy(txPackets, index, txPackets, dstPos, length); 42663d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) System.arraycopy(operations, index, operations, dstPos, length); 42775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 42875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 42975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart[index] = start; 430558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey setLong(activeTime, index, 0L); 43163d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(rxBytes, index, 0L); 43263d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(rxPackets, index, 0L); 43363d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(txBytes, index, 0L); 43463d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(txPackets, index, 0L); 43563d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(operations, index, 0L); 43675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount++; 43775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 43875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 43975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 44075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Remove buckets older than requested cutoff. 44175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 44263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey @Deprecated 44375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void removeBucketsBefore(long cutoff) { 44475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey int i; 44575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey for (i = 0; i < bucketCount; i++) { 44675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curStart = bucketStart[i]; 44775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curEnd = curStart + bucketDuration; 44875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 44975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // cutoff happens before or during this bucket; everything before 45075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // this bucket should be removed. 45175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curEnd > cutoff) break; 45275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 45375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 45475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (i > 0) { 45575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int length = bucketStart.length; 45675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = Arrays.copyOfRange(bucketStart, i, length); 457558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) activeTime = Arrays.copyOfRange(activeTime, i, length); 45863d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) rxBytes = Arrays.copyOfRange(rxBytes, i, length); 45963d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) rxPackets = Arrays.copyOfRange(rxPackets, i, length); 46063d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) txBytes = Arrays.copyOfRange(txBytes, i, length); 46163d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) txPackets = Arrays.copyOfRange(txPackets, i, length); 46263d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) operations = Arrays.copyOfRange(operations, i, length); 46375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount -= i; 46463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 46563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey // TODO: subtract removed values from totalBytes 46675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 46775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 46875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 46961ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey /** 47019862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * Return interpolated data usage across the requested range. Interpolates 47119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * across buckets, so values may be rounded slightly. 47219862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey */ 473434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public Entry getValues(long start, long end, Entry recycle) { 474434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return getValues(start, end, Long.MAX_VALUE, recycle); 475434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 476434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 477434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey /** 478434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey * Return interpolated data usage across the requested range. Interpolates 479434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey * across buckets, so values may be rounded slightly. 480434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey */ 481434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public Entry getValues(long start, long end, long now, Entry recycle) { 482434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey final Entry entry = recycle != null ? recycle : new Entry(); 483434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey entry.bucketDuration = end - start; 484558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.bucketStart = start; 485558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.activeTime = activeTime != null ? 0 : UNKNOWN; 48663d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = rxBytes != null ? 0 : UNKNOWN; 48763d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = rxPackets != null ? 0 : UNKNOWN; 48863d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = txBytes != null ? 0 : UNKNOWN; 48963d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = txPackets != null ? 0 : UNKNOWN; 49063d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = operations != null ? 0 : UNKNOWN; 49119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 49269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final int startIndex = getIndexAfter(end); 49369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey for (int i = startIndex; i >= 0; i--) { 49419862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey final long curStart = bucketStart[i]; 49519862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey final long curEnd = curStart + bucketDuration; 49619862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 49734c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey // bucket is older than request; we're finished 49834c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey if (curEnd <= start) break; 49934c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey // bucket is newer than request; keep looking 50034c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey if (curStart >= end) continue; 50119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 502434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey // include full value for active buckets, otherwise only fractional 503434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey final boolean activeBucket = curStart < now && curEnd > now; 50469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlap; 50569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (activeBucket) { 50669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey overlap = bucketDuration; 50769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 50869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlapEnd = curEnd < end ? curEnd : end; 50969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlapStart = curStart > start ? curStart : start; 51069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey overlap = overlapEnd - overlapStart; 51169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 512a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (overlap <= 0) continue; 513a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 514a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey // integer math each time is faster than floating point 515558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) entry.activeTime += activeTime[i] * overlap / bucketDuration; 51663d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) entry.rxBytes += rxBytes[i] * overlap / bucketDuration; 51763d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) entry.rxPackets += rxPackets[i] * overlap / bucketDuration; 51863d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) entry.txBytes += txBytes[i] * overlap / bucketDuration; 51963d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) entry.txPackets += txPackets[i] * overlap / bucketDuration; 52063d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) entry.operations += operations[i] * overlap / bucketDuration; 52119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 522434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return entry; 52319862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 52419862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 52519862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey /** 52661ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey * @deprecated only for temporary testing 52761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey */ 52861ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey @Deprecated 529293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey public void generateRandom(long start, long end, long bytes) { 530293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final Random r = new Random(); 531293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 532293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final float fractionRx = r.nextFloat(); 533293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long rxBytes = (long) (bytes * fractionRx); 534293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long txBytes = (long) (bytes * (1 - fractionRx)); 535293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 536293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long rxPackets = rxBytes / 1024; 537293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long txPackets = txBytes / 1024; 538293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long operations = rxBytes / 2048; 539293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 540293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey generateRandom(start, end, rxBytes, rxPackets, txBytes, txPackets, operations, r); 541293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey } 542293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 543293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey /** 544293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey * @deprecated only for temporary testing 545293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey */ 546293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey @Deprecated 54763d27a9233fed934340231f438493746084a681dJeff Sharkey public void generateRandom(long start, long end, long rxBytes, long rxPackets, long txBytes, 548293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey long txPackets, long operations, Random r) { 54961ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey ensureBuckets(start, end); 55061ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 551a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry( 552b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0L); 55304cd0e47dbc1e9769ac6f258c923d5b17fa57986Jeff Sharkey while (rxBytes > 1024 || rxPackets > 128 || txBytes > 1024 || txPackets > 128 55404cd0e47dbc1e9769ac6f258c923d5b17fa57986Jeff Sharkey || operations > 32) { 55561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey final long curStart = randomLong(r, start, end); 556293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long curEnd = curStart + randomLong(r, 0, (end - curStart) / 2); 55763d27a9233fed934340231f438493746084a681dJeff Sharkey 55863d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = randomLong(r, 0, rxBytes); 55963d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = randomLong(r, 0, rxPackets); 56063d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = randomLong(r, 0, txBytes); 56163d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = randomLong(r, 0, txPackets); 56263d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = randomLong(r, 0, operations); 56363d27a9233fed934340231f438493746084a681dJeff Sharkey 56463d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes -= entry.rxBytes; 56563d27a9233fed934340231f438493746084a681dJeff Sharkey rxPackets -= entry.rxPackets; 56663d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes -= entry.txBytes; 56763d27a9233fed934340231f438493746084a681dJeff Sharkey txPackets -= entry.txPackets; 56863d27a9233fed934340231f438493746084a681dJeff Sharkey operations -= entry.operations; 569f0ceede8fff5df24e5c98701d81c2b71eb138aa9Jeff Sharkey 570f0ceede8fff5df24e5c98701d81c2b71eb138aa9Jeff Sharkey recordData(curStart, curEnd, entry); 57161ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57261ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57361ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 574293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey public static long randomLong(Random r, long start, long end) { 57561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey return (long) (start + (r.nextFloat() * (end - start))); 57661ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 57855a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey /** 57955a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey * Quickly determine if this history intersects with given window. 58055a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey */ 58155a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey public boolean intersects(long start, long end) { 58255a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey final long dataStart = getStart(); 58355a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey final long dataEnd = getEnd(); 58455a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (start >= dataStart && start <= dataEnd) return true; 58555a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (end >= dataStart && end <= dataEnd) return true; 58655a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (dataStart >= start && dataStart <= end) return true; 58755a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (dataEnd >= start && dataEnd <= end) return true; 58855a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey return false; 58955a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey } 59055a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey 59163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public void dump(IndentingPrintWriter pw, boolean fullHistory) { 59255a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print("NetworkStatsHistory: bucketDuration="); 59355a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.println(bucketDuration / SECOND_IN_MILLIS); 59463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.increaseIndent(); 595350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey 596350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey final int start = fullHistory ? 0 : Math.max(0, bucketCount - 32); 597350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey if (start > 0) { 59863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.print("(omitting "); pw.print(start); pw.println(" buckets)"); 599350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey } 600350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey 601350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey for (int i = start; i < bucketCount; i++) { 60255a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print("st="); pw.print(bucketStart[i] / SECOND_IN_MILLIS); 60355a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (rxBytes != null) { pw.print(" rb="); pw.print(rxBytes[i]); } 60455a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (rxPackets != null) { pw.print(" rp="); pw.print(rxPackets[i]); } 60555a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (txBytes != null) { pw.print(" tb="); pw.print(txBytes[i]); } 60655a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (txPackets != null) { pw.print(" tp="); pw.print(txPackets[i]); } 60755a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (operations != null) { pw.print(" op="); pw.print(operations[i]); } 60863d27a9233fed934340231f438493746084a681dJeff Sharkey pw.println(); 60975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 61063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 61163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.decreaseIndent(); 61275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 61375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 61455a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey public void dumpCheckin(PrintWriter pw) { 61555a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print("d,"); 61655a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print(bucketDuration / SECOND_IN_MILLIS); 61755a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.println(); 61855a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey 61955a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey for (int i = 0; i < bucketCount; i++) { 62055a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print("b,"); 62155a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.print(bucketStart[i] / SECOND_IN_MILLIS); pw.print(','); 62255a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (rxBytes != null) { pw.print(rxBytes[i]); } else { pw.print("*"); } pw.print(','); 62355a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (rxPackets != null) { pw.print(rxPackets[i]); } else { pw.print("*"); } pw.print(','); 62455a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (txBytes != null) { pw.print(txBytes[i]); } else { pw.print("*"); } pw.print(','); 62555a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (txPackets != null) { pw.print(txPackets[i]); } else { pw.print("*"); } pw.print(','); 62655a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey if (operations != null) { pw.print(operations[i]); } else { pw.print("*"); } 62755a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey pw.println(); 62855a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey } 62955a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey } 63055a442e58262e253df965d652bd8219c8d1e72d3Jeff Sharkey 63175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey @Override 63275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public String toString() { 63375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final CharArrayWriter writer = new CharArrayWriter(); 63463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey dump(new IndentingPrintWriter(writer, " "), false); 63575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return writer.toString(); 63675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 63775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 63875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public static final Creator<NetworkStatsHistory> CREATOR = new Creator<NetworkStatsHistory>() { 639bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 64075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory createFromParcel(Parcel in) { 64175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return new NetworkStatsHistory(in); 64275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 64375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 644bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 64575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory[] newArray(int size) { 64675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return new NetworkStatsHistory[size]; 64775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 64875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey }; 64975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 65063d27a9233fed934340231f438493746084a681dJeff Sharkey private static long getLong(long[] array, int i, long value) { 65163d27a9233fed934340231f438493746084a681dJeff Sharkey return array != null ? array[i] : value; 65263d27a9233fed934340231f438493746084a681dJeff Sharkey } 65363d27a9233fed934340231f438493746084a681dJeff Sharkey 65463d27a9233fed934340231f438493746084a681dJeff Sharkey private static void setLong(long[] array, int i, long value) { 65563d27a9233fed934340231f438493746084a681dJeff Sharkey if (array != null) array[i] = value; 65663d27a9233fed934340231f438493746084a681dJeff Sharkey } 65763d27a9233fed934340231f438493746084a681dJeff Sharkey 65863d27a9233fed934340231f438493746084a681dJeff Sharkey private static void addLong(long[] array, int i, long value) { 65963d27a9233fed934340231f438493746084a681dJeff Sharkey if (array != null) array[i] += value; 66063d27a9233fed934340231f438493746084a681dJeff Sharkey } 66163d27a9233fed934340231f438493746084a681dJeff Sharkey 66263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public int estimateResizeBuckets(long newBucketDuration) { 66363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey return (int) (size() * getBucketDuration() / newBucketDuration); 66463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 66563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 666a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 667a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Utility methods for interacting with {@link DataInputStream} and 668a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * {@link DataOutputStream}, mostly dealing with writing partial arrays. 669a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 670a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static class DataStreamUtils { 67163d27a9233fed934340231f438493746084a681dJeff Sharkey @Deprecated 67263d27a9233fed934340231f438493746084a681dJeff Sharkey public static long[] readFullLongArray(DataInputStream in) throws IOException { 673a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final int size = in.readInt(); 6741f99a483e410811473b12d8efedd79c738df7af3Jeff Sharkey if (size < 0) throw new ProtocolException("negative array size"); 675a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final long[] values = new long[size]; 676a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < values.length; i++) { 677a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey values[i] = in.readLong(); 678a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 679a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey return values; 680a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 681a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 68263d27a9233fed934340231f438493746084a681dJeff Sharkey /** 68363d27a9233fed934340231f438493746084a681dJeff Sharkey * Read variable-length {@link Long} using protobuf-style approach. 68463d27a9233fed934340231f438493746084a681dJeff Sharkey */ 68563d27a9233fed934340231f438493746084a681dJeff Sharkey public static long readVarLong(DataInputStream in) throws IOException { 68663d27a9233fed934340231f438493746084a681dJeff Sharkey int shift = 0; 68763d27a9233fed934340231f438493746084a681dJeff Sharkey long result = 0; 68863d27a9233fed934340231f438493746084a681dJeff Sharkey while (shift < 64) { 68963d27a9233fed934340231f438493746084a681dJeff Sharkey byte b = in.readByte(); 69063d27a9233fed934340231f438493746084a681dJeff Sharkey result |= (long) (b & 0x7F) << shift; 69163d27a9233fed934340231f438493746084a681dJeff Sharkey if ((b & 0x80) == 0) 69263d27a9233fed934340231f438493746084a681dJeff Sharkey return result; 69363d27a9233fed934340231f438493746084a681dJeff Sharkey shift += 7; 69463d27a9233fed934340231f438493746084a681dJeff Sharkey } 69563d27a9233fed934340231f438493746084a681dJeff Sharkey throw new ProtocolException("malformed long"); 69663d27a9233fed934340231f438493746084a681dJeff Sharkey } 69763d27a9233fed934340231f438493746084a681dJeff Sharkey 69863d27a9233fed934340231f438493746084a681dJeff Sharkey /** 69963d27a9233fed934340231f438493746084a681dJeff Sharkey * Write variable-length {@link Long} using protobuf-style approach. 70063d27a9233fed934340231f438493746084a681dJeff Sharkey */ 70163d27a9233fed934340231f438493746084a681dJeff Sharkey public static void writeVarLong(DataOutputStream out, long value) throws IOException { 70263d27a9233fed934340231f438493746084a681dJeff Sharkey while (true) { 70363d27a9233fed934340231f438493746084a681dJeff Sharkey if ((value & ~0x7FL) == 0) { 70463d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeByte((int) value); 70563d27a9233fed934340231f438493746084a681dJeff Sharkey return; 70663d27a9233fed934340231f438493746084a681dJeff Sharkey } else { 70763d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeByte(((int) value & 0x7F) | 0x80); 70863d27a9233fed934340231f438493746084a681dJeff Sharkey value >>>= 7; 70963d27a9233fed934340231f438493746084a681dJeff Sharkey } 71063d27a9233fed934340231f438493746084a681dJeff Sharkey } 71163d27a9233fed934340231f438493746084a681dJeff Sharkey } 71263d27a9233fed934340231f438493746084a681dJeff Sharkey 71363d27a9233fed934340231f438493746084a681dJeff Sharkey public static long[] readVarLongArray(DataInputStream in) throws IOException { 71463d27a9233fed934340231f438493746084a681dJeff Sharkey final int size = in.readInt(); 71563d27a9233fed934340231f438493746084a681dJeff Sharkey if (size == -1) return null; 7161f99a483e410811473b12d8efedd79c738df7af3Jeff Sharkey if (size < 0) throw new ProtocolException("negative array size"); 71763d27a9233fed934340231f438493746084a681dJeff Sharkey final long[] values = new long[size]; 71863d27a9233fed934340231f438493746084a681dJeff Sharkey for (int i = 0; i < values.length; i++) { 71963d27a9233fed934340231f438493746084a681dJeff Sharkey values[i] = readVarLong(in); 72063d27a9233fed934340231f438493746084a681dJeff Sharkey } 72163d27a9233fed934340231f438493746084a681dJeff Sharkey return values; 72263d27a9233fed934340231f438493746084a681dJeff Sharkey } 72363d27a9233fed934340231f438493746084a681dJeff Sharkey 72463d27a9233fed934340231f438493746084a681dJeff Sharkey public static void writeVarLongArray(DataOutputStream out, long[] values, int size) 725a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throws IOException { 72663d27a9233fed934340231f438493746084a681dJeff Sharkey if (values == null) { 72763d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeInt(-1); 72863d27a9233fed934340231f438493746084a681dJeff Sharkey return; 72963d27a9233fed934340231f438493746084a681dJeff Sharkey } 730a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (size > values.length) { 731a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("size larger than length"); 732a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 733a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey out.writeInt(size); 734a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < size; i++) { 73563d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLong(out, values[i]); 736a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 73775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 73875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 73975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 740a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 741a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Utility methods for interacting with {@link Parcel} structures, mostly 742a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * dealing with writing partial arrays. 743a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 744a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static class ParcelUtils { 745a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static long[] readLongArray(Parcel in) { 746a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final int size = in.readInt(); 74763d27a9233fed934340231f438493746084a681dJeff Sharkey if (size == -1) return null; 748a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final long[] values = new long[size]; 749a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < values.length; i++) { 750a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey values[i] = in.readLong(); 751a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 752a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey return values; 75375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 75475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 755a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static void writeLongArray(Parcel out, long[] values, int size) { 75663d27a9233fed934340231f438493746084a681dJeff Sharkey if (values == null) { 75763d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeInt(-1); 75863d27a9233fed934340231f438493746084a681dJeff Sharkey return; 759a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 760a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (size > values.length) { 761a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("size larger than length"); 762a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 763a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey out.writeInt(size); 764a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < size; i++) { 76563d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeLong(values[i]); 766a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 76775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 76875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 76975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 77075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey} 771