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Code Releases Activity

Real time logging for syncthing binary.

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This commit is contained in:
Felix Ableitner 2014-05-28 21:16:12 +02:00
parent 51309ef984
commit 66cf333725
1 changed files with 44 additions and 28 deletions
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72
src/main/java/com/nutomic/syncthingandroid/syncthing/SyncthingService.java
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@ -32,6 +32,7 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.concurrent.locks.ReentrantLock;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
@ -74,6 +75,10 @@ public class SyncthingService extends Service {
private RestApi mApi;
private final ReentrantLock mNativeLogLock = new ReentrantLock();
private String mNativeLog = "";
private final SyncthingServiceBinder mBinder = new SyncthingServiceBinder(this);
/**
@ -117,12 +122,11 @@ public class SyncthingService extends Service {
*/
private void runNative() {
DataOutputStream dos = null;
InputStreamReader isr = null;
int ret = 1;
String log = "";
Process process = null;
try {
Process p = Runtime.getRuntime().exec("sh");
dos = new DataOutputStream(p.getOutputStream());
process = Runtime.getRuntime().exec("sh");
dos = new DataOutputStream(process.getOutputStream());
// Set home directory to data folder for syncthing to use.
dos.writeBytes("HOME=" + getApplicationInfo().dataDir + "\n");
// Call syncthing with -home (as it would otherwise use "~/.config/syncthing/".
@ -131,23 +135,10 @@ public class SyncthingService extends Service {
dos.writeBytes("exit\n");
dos.flush();
ret = p.waitFor();
log(process.getInputStream(), Log.INFO);
log(process.getErrorStream(), Log.WARN);
// Write syncthing binary output to log.
// NOTE: This is only done on shutdown, not live.
isr = new InputStreamReader(p.getInputStream());
BufferedReader stdout = new BufferedReader(isr);
String line;
while((line = stdout.readLine()) != null) {
log += "stderr: " + line + "\n";
Log.w(TAG, "stderr: " + line);
}
isr = new InputStreamReader(p.getErrorStream());
BufferedReader stderr = new BufferedReader(isr);
while((line = stderr.readLine()) != null) {
log += "stdout: " + line + "\n";
Log.i(TAG, "stdout: " + line);
}
ret = process.waitFor();
}
catch(IOException e) {
Log.e(TAG, "Failed to execute syncthing binary or read output", e);
@ -156,22 +147,46 @@ public class SyncthingService extends Service {
Log.e(TAG, "Failed to execute syncthing binary or read output", e);
}
finally {
process.destroy();
if (ret != 0) {
stopSelf();
// Include the log for Play Store crash reports.
throw new NativeExecutionException("Syncthing binary returned error code " +
Integer.toString(ret), log);
}
try {
dos.close();
isr.close();
}
catch (IOException e) {
Log.w(TAG, "Failed to close stream", e);
Integer.toString(ret), mNativeLog);
}
}
}
/**
* Logs the outputs of a stream to logcat and mNativeLog.
*
* @param is The stream to log.
* @param priority The log level, eg Log.INFO or Log.WARN.
*/
private void log(final InputStream is, final int priority) {
new Thread(new Runnable() {
@Override
public void run() {
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line;
try {
while ((line = br.readLine()) != null) {
mNativeLogLock.lock();
Log.println(priority, TAG, ": " + line);
mNativeLog += line + "\n";
mNativeLogLock.unlock();
}
}
catch (IOException e) {
// NOTE: This is sometimes called on shutdown, as
// Process.destroy() closes the stream.
Log.w(TAG, "Failed to read syncthing command line output", e);
}
}
}).start();
}
/**
* Polls SYNCTHING_URL until it returns HTTP status OK, then calls all listeners
* in mOnWebGuiAvailableListeners and clears it.
@ -219,6 +234,7 @@ public class SyncthingService extends Service {
* Creates notification, starts native binary.
*/
@Override
public void onCreate() {
PendingIntent pi = PendingIntent.getActivity(
this, 0, new Intent(this, WebGuiActivity.class),