Console.java revision f7bca430d9356c26d6df222d2c90bc7668262f6b 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.systemui.recents;
18
19
20import android.content.ComponentCallbacks2;
21import android.content.Context;
22import android.util.Log;
23import android.view.MotionEvent;
24import android.widget.Toast;
25
26import java.util.HashMap;
27import java.util.Map;
28
29
30public class Console {
31    // Timer
32    public static final Map<Object, Long> mTimeLogs = new HashMap<Object, Long>();
33
34    // Colors
35    public static final String AnsiReset = "\u001B[0m";
36    public static final String AnsiBlack = "\u001B[30m";
37    public static final String AnsiRed = "\u001B[31m";      // SystemUIHandshake
38    public static final String AnsiGreen = "\u001B[32m";    // MeasureAndLayout
39    public static final String AnsiYellow = "\u001B[33m";   // SynchronizeViewsWithModel
40    public static final String AnsiBlue = "\u001B[34m";     // TouchEvents, Search
41    public static final String AnsiPurple = "\u001B[35m";   // Draw
42    public static final String AnsiCyan = "\u001B[36m";     // ClickEvents
43    public static final String AnsiWhite = "\u001B[37m";
44
45    /** Logs a key */
46    public static void log(String key) {
47        log(true, key, "", AnsiReset);
48    }
49
50    /** Logs a conditioned key */
51    public static void log(boolean condition, String key) {
52        if (condition) {
53            log(condition, key, "", AnsiReset);
54        }
55    }
56
57    /** Logs a key in a specific color */
58    public static void log(boolean condition, String key, Object data) {
59        if (condition) {
60            log(condition, key, data, AnsiReset);
61        }
62    }
63
64    /** Logs a key with data in a specific color */
65    public static void log(boolean condition, String key, Object data, String color) {
66        if (condition) {
67            System.out.println(color + key + AnsiReset + " " + data.toString());
68        }
69    }
70
71    /** Logs an error */
72    public static void logError(Context context, String msg) {
73        Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
74        Log.e("Recents", msg);
75    }
76
77    /** Logs a raw error */
78    public static void logRawError(String msg, Exception e) {
79        Log.e("Recents", msg, e);
80    }
81
82    /** Logs a divider bar */
83    public static void logDivider(boolean condition) {
84        if (condition) {
85            System.out.println("==== [" + System.currentTimeMillis() +
86                    "] ============================================================");
87        }
88    }
89
90    /** Starts a time trace */
91    public static void logStartTracingTime(boolean condition, String key) {
92        if (condition) {
93            long curTime = System.currentTimeMillis();
94            mTimeLogs.put(key, curTime);
95            Console.log(condition, "[Recents|" + key + "]",
96                    "started @ " + curTime);
97        }
98    }
99
100    /** Continues a time trace */
101    public static void logTraceTime(boolean condition, String key, String desc) {
102        if (condition) {
103            long timeDiff = System.currentTimeMillis() - mTimeLogs.get(key);
104            Console.log(condition, "[Recents|" + key + "|" + desc + "]",
105                    "+" + timeDiff + "ms");
106        }
107    }
108
109    /** Logs a stack trace */
110    public static void logStackTrace() {
111        logStackTrace("", 99);
112    }
113
114    /** Logs a stack trace to a certain depth */
115    public static void logStackTrace(int depth) {
116        logStackTrace("", depth);
117    }
118
119    /** Logs a stack trace to a certain depth with a key */
120    public static void logStackTrace(String key, int depth) {
121        int offset = 0;
122        StackTraceElement[] callStack = Thread.currentThread().getStackTrace();
123        String tinyStackTrace = "";
124        // Skip over the known stack trace classes
125        for (int i = 0; i < callStack.length; i++) {
126            StackTraceElement el = callStack[i];
127            String className = el.getClassName();
128            if (className.indexOf("dalvik.system.VMStack") == -1 &&
129                className.indexOf("java.lang.Thread") == -1 &&
130                className.indexOf("recents.Console") == -1) {
131                break;
132            } else {
133                offset++;
134            }
135        }
136        // Build the pretty stack trace
137        int start = Math.min(offset + depth, callStack.length);
138        int end = offset;
139        String indent = "";
140        for (int i = start - 1; i >= end; i--) {
141            StackTraceElement el = callStack[i];
142            tinyStackTrace += indent + " -> " + el.getClassName() +
143                    "[" + el.getLineNumber() + "]." + el.getMethodName();
144            if (i > end) {
145                tinyStackTrace += "\n";
146                indent += "  ";
147            }
148        }
149        log(true, key, tinyStackTrace, AnsiRed);
150    }
151
152
153    /** Returns the stringified MotionEvent action */
154    public static String motionEventActionToString(int action) {
155        switch (action) {
156            case MotionEvent.ACTION_DOWN:
157                return "Down";
158            case MotionEvent.ACTION_UP:
159                return "Up";
160            case MotionEvent.ACTION_MOVE:
161                return "Move";
162            case MotionEvent.ACTION_CANCEL:
163                return "Cancel";
164            case MotionEvent.ACTION_POINTER_DOWN:
165                return "Pointer Down";
166            case MotionEvent.ACTION_POINTER_UP:
167                return "Pointer Up";
168            default:
169                return "" + action;
170        }
171    }
172
173    public static String trimMemoryLevelToString(int level) {
174        switch (level) {
175            case ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN:
176                return "UI Hidden";
177            case ComponentCallbacks2.TRIM_MEMORY_RUNNING_MODERATE:
178                return "Running Moderate";
179            case ComponentCallbacks2.TRIM_MEMORY_BACKGROUND:
180                return "Background";
181            case ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW:
182                return "Running Low";
183            case ComponentCallbacks2.TRIM_MEMORY_MODERATE:
184                return "Moderate";
185            case ComponentCallbacks2.TRIM_MEMORY_RUNNING_CRITICAL:
186                return "Critical";
187            case ComponentCallbacks2.TRIM_MEMORY_COMPLETE:
188                return "Complete";
189            default:
190                return "" + level;
191        }
192    }
193}
194