Log to the webrtc log stream from webrtc/modules java code.

talk/app/webrtc/java/src/org/webrtc/Logging.java

-/*
- * libjingle
- * Copyright 2013 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.webrtc;
-
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.nio.charset.Charset;
-import java.util.EnumSet;
-
-/** Java wrapper for WebRTC & libjingle logging. */
-public class Logging {
-  static {
-    System.loadLibrary("jingle_peerconnection_so");
-  }
-
-  // Keep in sync with webrtc/common_types.h:TraceLevel.
-  public enum TraceLevel {
-    TRACE_NONE(0x0000),
-    TRACE_STATEINFO(0x0001),
-    TRACE_WARNING(0x0002),
-    TRACE_ERROR(0x0004),
-    TRACE_CRITICAL(0x0008),
-    TRACE_APICALL(0x0010),
-    TRACE_DEFAULT(0x00ff),
-    TRACE_MODULECALL(0x0020),
-    TRACE_MEMORY(0x0100),
-    TRACE_TIMER(0x0200),
-    TRACE_STREAM(0x0400),
-    TRACE_DEBUG(0x0800),
-    TRACE_INFO(0x1000),
-    TRACE_TERSEINFO(0x2000),
-    TRACE_ALL(0xffff);
-
-    public final int level;
-    TraceLevel(int level) {
-      this.level = level;
-    }
-  };
-
-  // Keep in sync with webrtc/base/logging.h:LoggingSeverity.
-  public enum Severity {
-    LS_SENSITIVE, LS_VERBOSE, LS_INFO, LS_WARNING, LS_ERROR,
-  };
-
-  public static void enableLogThreads() {
-    nativeEnableLogThreads();
-  }
-
-  public static void enableLogTimeStamps() {
-    nativeEnableLogTimeStamps();
-  }
-
-  // Enable tracing to |path| of messages of |levels| and |severity|.
-  // On Android, use "logcat:" for |path| to send output there.
-  public static void enableTracing(
-      String path, EnumSet<TraceLevel> levels, Severity severity) {
-    int nativeLevel = 0;
-    for (TraceLevel level : levels) {
-      nativeLevel |= level.level;
-    }
-    nativeEnableTracing(path, nativeLevel, severity.ordinal());
-  }
-
-  public static void log(Severity severity, String tag, String message) {
-    nativeLog(severity.ordinal(), tag, message);
-  }
-
-  public static void d(String tag, String message) {
-    log(Severity.LS_INFO, tag, message);
-  }
-
-  public static void e(String tag, String message) {
-    log(Severity.LS_ERROR, tag, message);
-  }
-
-  public static void w(String tag, String message) {
-    log(Severity.LS_WARNING, tag, message);
-  }
-
-  public static void e(String tag, String message, Throwable e) {
-    log(Severity.LS_ERROR, tag, message);
-    log(Severity.LS_ERROR, tag, e.toString());
-    log(Severity.LS_ERROR, tag, getStackTraceString(e));
-  }
-
-  public static void w(String tag, String message, Throwable e) {
-    log(Severity.LS_WARNING, tag, message);
-    log(Severity.LS_WARNING, tag, e.toString());
-    log(Severity.LS_WARNING, tag, getStackTraceString(e));
-  }
-
-  public static void v(String tag, String message) {
-    log(Severity.LS_VERBOSE, tag, message);
-  }
-
-  private static String getStackTraceString(Throwable e) {
-    if (e == null) {
-      return "";
-    }
-
-    StringWriter sw = new StringWriter();
-    PrintWriter pw = new PrintWriter(sw);
-    e.printStackTrace(pw);
-    return sw.toString();
-  }
-
-  private static native void nativeEnableTracing(
-      String path, int nativeLevels, int nativeSeverity);
-  private static native void nativeEnableLogThreads();
-  private static native void nativeEnableLogTimeStamps();
-  private static native void nativeLog(int severity, String tag, String message);
-}