The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/background/common/log/writers/AndroidLevelCachingLogWriter.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,126 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +package org.mozilla.gecko.background.common.log.writers;
     1.9 +
    1.10 +import java.util.IdentityHashMap;
    1.11 +import java.util.Map;
    1.12 +
    1.13 +import android.util.Log;
    1.14 +
    1.15 +/**
    1.16 + * Make a <code>LogWriter</code> only log when the Android log system says to.
    1.17 + */
    1.18 +public class AndroidLevelCachingLogWriter extends LogWriter {
    1.19 +  protected final LogWriter inner;
    1.20 +
    1.21 +  public AndroidLevelCachingLogWriter(LogWriter inner) {
    1.22 +    this.inner = inner;
    1.23 +  }
    1.24 +
    1.25 +  // I can't believe we have to implement this ourselves.
    1.26 +  // These aren't synchronized (and neither are the setters) because
    1.27 +  // the logging calls themselves are synchronized.
    1.28 +  private Map<String, Boolean> isErrorLoggable   = new IdentityHashMap<String, Boolean>();
    1.29 +  private Map<String, Boolean> isWarnLoggable    = new IdentityHashMap<String, Boolean>();
    1.30 +  private Map<String, Boolean> isInfoLoggable    = new IdentityHashMap<String, Boolean>();
    1.31 +  private Map<String, Boolean> isDebugLoggable   = new IdentityHashMap<String, Boolean>();
    1.32 +  private Map<String, Boolean> isVerboseLoggable = new IdentityHashMap<String, Boolean>();
    1.33 +
    1.34 +  /**
    1.35 +   * Empty the caches of log levels.
    1.36 +   */
    1.37 +  public void refreshLogLevels() {
    1.38 +    isErrorLoggable   = new IdentityHashMap<String, Boolean>();
    1.39 +    isWarnLoggable    = new IdentityHashMap<String, Boolean>();
    1.40 +    isInfoLoggable    = new IdentityHashMap<String, Boolean>();
    1.41 +    isDebugLoggable   = new IdentityHashMap<String, Boolean>();
    1.42 +    isVerboseLoggable = new IdentityHashMap<String, Boolean>();
    1.43 +  }
    1.44 +
    1.45 +  private boolean shouldLogError(String logTag) {
    1.46 +    Boolean out = isErrorLoggable.get(logTag);
    1.47 +    if (out != null) {
    1.48 +      return out.booleanValue();
    1.49 +    }
    1.50 +    out = Log.isLoggable(logTag, Log.ERROR);
    1.51 +    isErrorLoggable.put(logTag, out);
    1.52 +    return out;
    1.53 +  }
    1.54 +
    1.55 +  private boolean shouldLogWarn(String logTag) {
    1.56 +    Boolean out = isWarnLoggable.get(logTag);
    1.57 +    if (out != null) {
    1.58 +      return out.booleanValue();
    1.59 +    }
    1.60 +    out = Log.isLoggable(logTag, Log.WARN);
    1.61 +    isWarnLoggable.put(logTag, out);
    1.62 +    return out;
    1.63 +  }
    1.64 +
    1.65 +  private boolean shouldLogInfo(String logTag) {
    1.66 +    Boolean out = isInfoLoggable.get(logTag);
    1.67 +    if (out != null) {
    1.68 +      return out.booleanValue();
    1.69 +    }
    1.70 +    out = Log.isLoggable(logTag, Log.INFO);
    1.71 +    isInfoLoggable.put(logTag, out);
    1.72 +    return out;
    1.73 +  }
    1.74 +
    1.75 +  private boolean shouldLogDebug(String logTag) {
    1.76 +    Boolean out = isDebugLoggable.get(logTag);
    1.77 +    if (out != null) {
    1.78 +      return out.booleanValue();
    1.79 +    }
    1.80 +    out = Log.isLoggable(logTag, Log.DEBUG);
    1.81 +    isDebugLoggable.put(logTag, out);
    1.82 +    return out;
    1.83 +  }
    1.84 +
    1.85 +  @Override
    1.86 +  public boolean shouldLogVerbose(String logTag) {
    1.87 +    Boolean out = isVerboseLoggable.get(logTag);
    1.88 +    if (out != null) {
    1.89 +      return out.booleanValue();
    1.90 +    }
    1.91 +    out = Log.isLoggable(logTag, Log.VERBOSE);
    1.92 +    isVerboseLoggable.put(logTag, out);
    1.93 +    return out;
    1.94 +  }
    1.95 +
    1.96 +  public void error(String tag, String message, Throwable error) {
    1.97 +    if (shouldLogError(tag)) {
    1.98 +      inner.error(tag, message, error);
    1.99 +    }
   1.100 +  }
   1.101 +
   1.102 +  public void warn(String tag, String message, Throwable error) {
   1.103 +    if (shouldLogWarn(tag)) {
   1.104 +      inner.warn(tag, message, error);
   1.105 +    }
   1.106 +  }
   1.107 +
   1.108 +  public void info(String tag, String message, Throwable error) {
   1.109 +    if (shouldLogInfo(tag)) {
   1.110 +      inner.info(tag, message, error);
   1.111 +    }
   1.112 +  }
   1.113 +
   1.114 +  public void debug(String tag, String message, Throwable error) {
   1.115 +    if (shouldLogDebug(tag)) {
   1.116 +      inner.debug(tag, message, error);
   1.117 +    }
   1.118 +  }
   1.119 +
   1.120 +  public void trace(String tag, String message, Throwable error) {
   1.121 +    if (shouldLogVerbose(tag)) {
   1.122 +      inner.trace(tag, message, error);
   1.123 +    }
   1.124 +  }
   1.125 +
   1.126 +  public void close() {
   1.127 +    inner.close();
   1.128 +  }
   1.129 +}