1 files changed, 148 insertions, 0 deletions
diff --git a/dumpeventlog/src/com/android/dumpeventlog/DumpEventLog.java b/dumpeventlog/src/com/android/dumpeventlog/DumpEventLog.java
new file mode 100644
index 000000000..0669e33fd
--- /dev/null
+++ b/dumpeventlog/src/com/android/dumpeventlog/DumpEventLog.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dumpeventlog;
+
+import com.android.ddmlib.AdbCommandRejectedException;
+import com.android.ddmlib.AndroidDebugBridge;
+import com.android.ddmlib.IDevice;
+import com.android.ddmlib.Log;
+import com.android.ddmlib.TimeoutException;
+import com.android.ddmlib.Log.ILogOutput;
+import com.android.ddmlib.Log.LogLevel;
+import com.android.ddmlib.log.LogReceiver;
+import com.android.ddmlib.log.LogReceiver.ILogListener;
+import com.android.ddmlib.log.LogReceiver.LogEntry;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+/**
+ * Connects to a device using ddmlib and dumps its event log as long as the device is connected.
+ */
+public class DumpEventLog {
+
+    /**
+     * Custom {@link ILogListener} to receive and save the event log raw output.
+     */
+    private static class LogWriter implements ILogListener {
+        private FileOutputStream mOutputStream;
+        private LogReceiver mReceiver;
+
+        public LogWriter(String filePath) throws IOException {
+            mOutputStream = new FileOutputStream(filePath);
+        }
+
+        public void newData(byte[] data, int offset, int length) {
+            try {
+                mOutputStream.write(data, offset, length);
+            } catch (IOException e) {
+                if (mReceiver != null) {
+                    mReceiver.cancel();
+                }
+                System.out.println(e);
+            }
+        }
+
+        public void newEntry(LogEntry entry) {
+            // pass
+        }
+
+        public void setReceiver(LogReceiver receiver) {
+            mReceiver = receiver;
+        }
+
+        public void done() throws IOException {
+            mOutputStream.close();
+        }
+    }
+
+    public static void main(String[] args) {
+        if (args.length != 2) {
+            System.out.println("Usage: dumpeventlog <device s/n> <filepath>");
+            return;
+        }
+
+        // redirect the log output to /dev/null
+        Log.setLogOutput(new ILogOutput() {
+            public void printAndPromptLog(LogLevel logLevel, String tag, String message) {
+                // pass
+            }
+
+            public void printLog(LogLevel logLevel, String tag, String message) {
+                // pass
+            }
+        });
+
+        // init the lib
+        AndroidDebugBridge.init(false /* debugger support */);
+
+        try {
+            AndroidDebugBridge bridge = AndroidDebugBridge.createBridge();
+
+            // we can't just ask for the device list right away, as the internal thread getting
+            // them from ADB may not be done getting the first list.
+            // Since we don't really want getDevices() to be blocking, we wait here manually.
+            int count = 0;
+            while (bridge.hasInitialDeviceList() == false) {
+                try {
+                    Thread.sleep(100);
+                    count++;
+                } catch (InterruptedException e) {
+                    // pass
+                }
+
+                // let's not wait > 10 sec.
+                if (count > 100) {
+                    System.err.println("Timeout getting device list!");
+                    return;
+                }
+            }
+
+            // now get the devices
+            IDevice[] devices = bridge.getDevices();
+
+            for (IDevice device : devices) {
+                if (device.getSerialNumber().equals(args[0])) {
+                    try {
+                        grabLogFrom(device, args[1]);
+                    } catch (FileNotFoundException e) {
+                        e.printStackTrace();
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                    return;
+                }
+            }
+
+            System.err.println("Could not find " + args[0]);
+        } finally {
+            AndroidDebugBridge.terminate();
+        }
+    }
+
+    private static void grabLogFrom(IDevice device, String filePath) throws IOException,
+            TimeoutException, AdbCommandRejectedException {
+        LogWriter writer = new LogWriter(filePath);
+        LogReceiver receiver = new LogReceiver(writer);
+        writer.setReceiver(receiver);
+
+        device.runEventLogService(receiver);
+
+        writer.done();
+    }
+}