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103 changes: 103 additions & 0 deletions
103
app/src/main/java/com/surcumference/fingerprint/util/LogcatManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package com.surcumference.fingerprint.util; | ||
|
|
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| import com.surcumference.fingerprint.util.log.L; | ||
|
|
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| import java.io.BufferedReader; | ||
| import java.io.File; | ||
| import java.io.InputStreamReader; | ||
| import java.io.PrintWriter; | ||
| import java.lang.reflect.Field; | ||
| import java.util.concurrent.Executors; | ||
| import java.util.concurrent.ScheduledExecutorService; | ||
| import java.util.concurrent.TimeUnit; | ||
|
|
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| public class LogcatManager { | ||
| private Process process; | ||
| private final File targetFile; | ||
| private ScheduledExecutorService timeOutExecutor = Executors.newScheduledThreadPool(1); | ||
|
|
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| public LogcatManager(File targetFile) { | ||
| this.targetFile = targetFile; | ||
| } | ||
|
|
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| public void startLogging(long timeOutMS) { | ||
| synchronized (LogcatManager.class) { | ||
| try { | ||
| stopLoggingInternal(); | ||
| this.process = Runtime.getRuntime().exec("logcat"); | ||
| Task.onBackground(() -> { | ||
| PrintWriter pw = null; | ||
| try { | ||
| pw = new PrintWriter(targetFile); | ||
| BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream())); | ||
| String line; | ||
| while ((line = bufferedReader.readLine()) != null) { | ||
| pw.println(line); | ||
| } | ||
| } catch (Exception e) { | ||
| L.e(e); | ||
| } finally { | ||
| FileUtils.closeCloseable(pw); | ||
| } | ||
| }); | ||
| timeOutExecutor.shutdown(); | ||
| timeOutExecutor = Executors.newScheduledThreadPool(1); | ||
| timeOutExecutor.schedule(() -> { | ||
| stopLoggingInternal(); | ||
| L.d("stopLogging on timeout"); | ||
| }, timeOutMS, TimeUnit.MILLISECONDS); | ||
| L.d("startLogging timeOutMS", timeOutMS); | ||
| } catch (Exception e) { | ||
| L.e(e); | ||
| } | ||
| } | ||
| } | ||
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| public void stopLogging() { | ||
| synchronized (LogcatManager.class) { | ||
| stopLoggingInternal(); | ||
| L.d("stopLogging"); | ||
| } | ||
| } | ||
|
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| private void stopLoggingInternal() { | ||
| try { | ||
| if (!isRunning()) { | ||
| return; | ||
| } | ||
| int pid = getPid(process); | ||
| if (pid > -1) { | ||
| android.os.Process.killProcess(pid); | ||
| } | ||
| process.destroyForcibly(); | ||
| } catch (Exception e) { | ||
| L.e(e); | ||
| } finally { | ||
| timeOutExecutor.shutdown(); | ||
| timeOutExecutor = Executors.newScheduledThreadPool(1); | ||
| } | ||
| } | ||
|
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| public boolean isRunning() { | ||
| Process process = this.process; | ||
| if (process == null) { | ||
| return false; | ||
| } | ||
| return process.isAlive(); | ||
| } | ||
|
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| public File getTargetFile() { | ||
| return this.targetFile; | ||
| } | ||
|
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| public static int getPid(Process p) { | ||
| try { | ||
| Field f = p.getClass().getDeclaredField("pid"); | ||
| f.setAccessible(true); | ||
| return f.getInt(p); | ||
| } catch (Throwable e) { | ||
| L.e(e); | ||
| } | ||
| return -1; | ||
| } | ||
| } |
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