1cfd74d65d832137e20e193c960802afba73b5d38sm/* 23c1e67e433728684b5f228c5d4f3e5b1457bb271sm * Copyright (C) 2010 The Android Open Source Project 3cfd74d65d832137e20e193c960802afba73b5d38sm * 4cfd74d65d832137e20e193c960802afba73b5d38sm * Licensed under the Apache License, Version 2.0 (the "License"); 5cfd74d65d832137e20e193c960802afba73b5d38sm * you may not use this file except in compliance with the License. 6cfd74d65d832137e20e193c960802afba73b5d38sm * You may obtain a copy of the License at 7cfd74d65d832137e20e193c960802afba73b5d38sm * 8cfd74d65d832137e20e193c960802afba73b5d38sm * http://www.apache.org/licenses/LICENSE-2.0 9cfd74d65d832137e20e193c960802afba73b5d38sm * 10cfd74d65d832137e20e193c960802afba73b5d38sm * Unless required by applicable law or agreed to in writing, software 11cfd74d65d832137e20e193c960802afba73b5d38sm * distributed under the License is distributed on an "AS IS" BASIS, 12cfd74d65d832137e20e193c960802afba73b5d38sm * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cfd74d65d832137e20e193c960802afba73b5d38sm * See the License for the specific language governing permissions and 14cfd74d65d832137e20e193c960802afba73b5d38sm * limitations under the License. 15cfd74d65d832137e20e193c960802afba73b5d38sm */ 16cfd74d65d832137e20e193c960802afba73b5d38sm 17cfd74d65d832137e20e193c960802afba73b5d38smpackage com.replica.replicaisland; 18cfd74d65d832137e20e193c960802afba73b5d38sm 19cfd74d65d832137e20e193c960802afba73b5d38smimport java.util.Comparator; 20cfd74d65d832137e20e193c960802afba73b5d38sm 21cfd74d65d832137e20e193c960802afba73b5d38smpublic class ChannelSystem extends BaseObject { 22cfd74d65d832137e20e193c960802afba73b5d38sm private static final int CHANNEL_COUNT = 8; 23cfd74d65d832137e20e193c960802afba73b5d38sm private static final ChannelComparator sChannelComparator = new ChannelComparator(); 24cfd74d65d832137e20e193c960802afba73b5d38sm private FixedSizeArray<Channel> mChannels; 25cfd74d65d832137e20e193c960802afba73b5d38sm private Channel mSearchDummy; 26cfd74d65d832137e20e193c960802afba73b5d38sm private int mRegisteredChannelCount; 27cfd74d65d832137e20e193c960802afba73b5d38sm 28cfd74d65d832137e20e193c960802afba73b5d38sm public ChannelSystem() { 29cfd74d65d832137e20e193c960802afba73b5d38sm super(); 30cfd74d65d832137e20e193c960802afba73b5d38sm mChannels = new FixedSizeArray<Channel>(CHANNEL_COUNT); 31cfd74d65d832137e20e193c960802afba73b5d38sm mChannels.setComparator(sChannelComparator); 32cfd74d65d832137e20e193c960802afba73b5d38sm mSearchDummy = new Channel(); 33cfd74d65d832137e20e193c960802afba73b5d38sm 34cfd74d65d832137e20e193c960802afba73b5d38sm for (int x = 0; x < CHANNEL_COUNT; x++) { 35cfd74d65d832137e20e193c960802afba73b5d38sm mChannels.add(new Channel()); 36cfd74d65d832137e20e193c960802afba73b5d38sm } 37cfd74d65d832137e20e193c960802afba73b5d38sm 38cfd74d65d832137e20e193c960802afba73b5d38sm mRegisteredChannelCount = 0; 39cfd74d65d832137e20e193c960802afba73b5d38sm } 40cfd74d65d832137e20e193c960802afba73b5d38sm 41cfd74d65d832137e20e193c960802afba73b5d38sm @Override 42cfd74d65d832137e20e193c960802afba73b5d38sm public void reset() { 43cfd74d65d832137e20e193c960802afba73b5d38sm for (int x = 0; x < CHANNEL_COUNT; x++) { 44cfd74d65d832137e20e193c960802afba73b5d38sm mChannels.get(x).name = null; 45cfd74d65d832137e20e193c960802afba73b5d38sm mChannels.get(x).value = null; 46cfd74d65d832137e20e193c960802afba73b5d38sm } 47cfd74d65d832137e20e193c960802afba73b5d38sm 48cfd74d65d832137e20e193c960802afba73b5d38sm mRegisteredChannelCount = 0; 49cfd74d65d832137e20e193c960802afba73b5d38sm } 50cfd74d65d832137e20e193c960802afba73b5d38sm 51cfd74d65d832137e20e193c960802afba73b5d38sm public Channel registerChannel(String name) { 52cfd74d65d832137e20e193c960802afba73b5d38sm Channel result = null; 53cfd74d65d832137e20e193c960802afba73b5d38sm mSearchDummy.name = name; 54cfd74d65d832137e20e193c960802afba73b5d38sm final int index = mChannels.find(mSearchDummy, false); 55cfd74d65d832137e20e193c960802afba73b5d38sm if (index == -1) { 56cfd74d65d832137e20e193c960802afba73b5d38sm // Add a new channel. 57cfd74d65d832137e20e193c960802afba73b5d38sm assert mRegisteredChannelCount < CHANNEL_COUNT : "Channel pool exhausted!"; 58cfd74d65d832137e20e193c960802afba73b5d38sm 59cfd74d65d832137e20e193c960802afba73b5d38sm if (mRegisteredChannelCount < CHANNEL_COUNT) { 60cfd74d65d832137e20e193c960802afba73b5d38sm result = mChannels.get(mRegisteredChannelCount); 61cfd74d65d832137e20e193c960802afba73b5d38sm mRegisteredChannelCount++; 62cfd74d65d832137e20e193c960802afba73b5d38sm result.name = name; 63cfd74d65d832137e20e193c960802afba73b5d38sm mChannels.sort(true); 64cfd74d65d832137e20e193c960802afba73b5d38sm } 65cfd74d65d832137e20e193c960802afba73b5d38sm } else { 66cfd74d65d832137e20e193c960802afba73b5d38sm result = mChannels.get(index); 67cfd74d65d832137e20e193c960802afba73b5d38sm } 68cfd74d65d832137e20e193c960802afba73b5d38sm 69cfd74d65d832137e20e193c960802afba73b5d38sm return result; 70cfd74d65d832137e20e193c960802afba73b5d38sm } 71cfd74d65d832137e20e193c960802afba73b5d38sm 72cfd74d65d832137e20e193c960802afba73b5d38sm public class Channel { 73cfd74d65d832137e20e193c960802afba73b5d38sm public String name; 74cfd74d65d832137e20e193c960802afba73b5d38sm public Object value; 75cfd74d65d832137e20e193c960802afba73b5d38sm } 76cfd74d65d832137e20e193c960802afba73b5d38sm 77cfd74d65d832137e20e193c960802afba73b5d38sm public static class ChannelFloatValue { 78cfd74d65d832137e20e193c960802afba73b5d38sm public float value; 79cfd74d65d832137e20e193c960802afba73b5d38sm } 80cfd74d65d832137e20e193c960802afba73b5d38sm 81cfd74d65d832137e20e193c960802afba73b5d38sm public static class ChannelBooleanValue { 82cfd74d65d832137e20e193c960802afba73b5d38sm public boolean value; 83cfd74d65d832137e20e193c960802afba73b5d38sm } 84cfd74d65d832137e20e193c960802afba73b5d38sm 85cfd74d65d832137e20e193c960802afba73b5d38sm /** Comparator for channels. */ 86cfd74d65d832137e20e193c960802afba73b5d38sm private final static class ChannelComparator implements Comparator<Channel> { 87cfd74d65d832137e20e193c960802afba73b5d38sm public int compare(final Channel object1, final Channel object2) { 88cfd74d65d832137e20e193c960802afba73b5d38sm int result = 0; 89cfd74d65d832137e20e193c960802afba73b5d38sm if (object1 == null && object2 != null) { 90cfd74d65d832137e20e193c960802afba73b5d38sm result = 1; 91cfd74d65d832137e20e193c960802afba73b5d38sm } else if (object1 != null && object2 == null) { 92cfd74d65d832137e20e193c960802afba73b5d38sm result = -1; 93cfd74d65d832137e20e193c960802afba73b5d38sm } else if (object1 != null && object2 != null) { 94cfd74d65d832137e20e193c960802afba73b5d38sm if (object1.name == null && object2.name != null) { 95cfd74d65d832137e20e193c960802afba73b5d38sm result = 1; 96cfd74d65d832137e20e193c960802afba73b5d38sm } else if (object1.name != null && object2.name == null) { 97cfd74d65d832137e20e193c960802afba73b5d38sm result = -1; 98cfd74d65d832137e20e193c960802afba73b5d38sm } else if (object1.name != null && object2.name != null) { 99cfd74d65d832137e20e193c960802afba73b5d38sm result = object1.name.compareTo(object2.name); 100cfd74d65d832137e20e193c960802afba73b5d38sm } 101cfd74d65d832137e20e193c960802afba73b5d38sm } 102cfd74d65d832137e20e193c960802afba73b5d38sm return result; 103cfd74d65d832137e20e193c960802afba73b5d38sm } 104cfd74d65d832137e20e193c960802afba73b5d38sm } 105cfd74d65d832137e20e193c960802afba73b5d38sm 106cfd74d65d832137e20e193c960802afba73b5d38sm} 107