Example usage for org.apache.commons.io.input Tailer Tailer

Introduction

In this page you can find the example usage for org.apache.commons.io.input Tailer Tailer.

Prototype

public Tailer(File file, TailerListener listener, long delay, boolean end) 

Source Link

Document

Creates a Tailer for the given file, with a delay other than the default 1.0s.

Usage

From source file:flens.input.GrepInput.java

public GrepInput(String name, Tagger tagger, String file, String regex, boolean tail) {
    super(name, tagger);
    this.file = file;
    tailer = new Tailer(new File(file), this, delay, tail);
    this.regex = Pattern.compile(regex);
    this.tailFromEnd = tail;
}

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From source file:com.betfair.testing.utils.cougar.manager.LogTailer.java

protected LogTailer(File toRead, long timeForFileToBeCreated) throws IOException {
    long requiredTime = System.currentTimeMillis() + timeForFileToBeCreated;
    while ((System.currentTimeMillis() < requiredTime) && !(toRead.exists() && toRead.canRead())) {
        try {/*from   ww  w.ja v a 2s . co m*/
            Thread.sleep(10);
        } catch (InterruptedException e) {
            // ignore
        }
    }
    if (!toRead.exists() || !toRead.canRead()) {
        throw new IllegalStateException(
                "Couldn't read " + toRead.getCanonicalPath() + " in the configured timeout");
    }
    logger.debug("Initialising Tailer for " + toRead.getCanonicalPath());

    tailer = new Tailer(toRead, this, DELAY, false);
}

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From source file:io.narayana.nta.LogMonitorBean.java

/**
 * Starts asynchronously monitoring the logfile which must have been set by invoking the
 * setFile method. This method is non-blocking and control will be returned immediately to
 * the invoking method. The method will run continuously until the stop() method is invoked.
 *
 * @throws IllegalStateException if setFile has not been previous invoked to set the file to monitor
 *///from   ww  w  . j  a va 2s. co m
@Asynchronous
public void start() throws IllegalStateException {

    if (logFile == null)
        throw new IllegalStateException("setFile must be called before invoking start()");

    if (tailer == null) {
        try {
            tailer = new Tailer(logFile, logParser, Configuration.LOGFILE_POLL_INTERVAL, end);
            tailer.disable_reset_file_position();
            tailer.run();
        } catch (Exception e) {
            logger.error("Unhandled exception, shutting down...", e);
            // Not shutting down can cause problems when trying to undeploy the application if the
            // unhandled exception cannot be recovered from simply catching it, which appears to
            // be a large majority of cases. The stop method should be invoked through the
            // containers proxies.
            sessionContext.getBusinessObject(LogMonitorBean.class).stop();

            // Attempt to restart the logger.
            startupServiceBean.startLogParser();
        }
    }
}

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From source file:io.github.importre.android.chromeadb.ChromeAdbService.java

private void startTailer() {
    try {// w w w  .  j  a v  a  2  s . c  om
        if (mEventFile.exists()) {
            mEventFile.delete();
        }
        mEventFile.createNewFile();
    } catch (IOException e) {
        Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
        return;
    }

    if (mTailer != null) {
        mTailer.stop();
    }

    mTailer = new Tailer(mEventFile, this, 10, true);
    Thread thread = new Thread(mTailer);
    thread.start();
}

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From source file:org.jboss.additional.testsuite.jdkall.present.messaging.jms.deployment.PooledCFAvailableOnStartupTestCase.java

@Test
public void test() {

    ServerLogPatternListener listener = new ServerLogPatternListener(Pattern.compile(".*WFLYCTL0030.*"));
    Tailer serverLogTailer = new Tailer(SERVER_LOG, listener, 100, true);
    Thread tailerThread = new Thread(serverLogTailer);
    tailerThread.start();// w  w  w .j a  v  a  2s  . co  m

    ServerReload.executeReloadAndWaitForCompletion(mc.getControllerClient());
    serverLogTailer.stop();
    Assert.assertTrue("Server log contains error messages caused by missing resource definitions!",
            listener.getMatchedLines().isEmpty());
}

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From source file:org.syncany.operations.daemon.ControlServer.java

public ControlServer() {
    this.controlFile = new File(UserConfig.getUserConfigDir(), CONTROL_FILE);
    this.controlFileTailer = new Tailer(controlFile, this, 1000, true);
    this.eventBus = LocalEventBus.getInstance();
}

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From source file:org.syncany.operations.daemon.DaemonControlServer.java

public DaemonControlServer(DaemonControlListener controlListener) {
    this.controlFile = new File(UserConfig.getUserConfigDir(), CONTROL_FILE);
    this.controlFileTailer = new Tailer(controlFile, this, 1000, true);
    this.controlListener = controlListener;
}

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From source file:org.wso2.carbon.event.input.adapter.filetail.FileTailEventAdapter.java

private void createFileAdapterListener() {
    if (log.isDebugEnabled()) {
        log.debug("New subscriber added for " + eventAdapterConfiguration.getName());
    }/* ww w  . j  a  v  a 2  s .c  om*/

    String delayInMillisProperty = eventAdapterConfiguration.getProperties()
            .get(FileTailEventAdapterConstants.EVENT_ADAPTER_DELAY_MILLIS);
    int delayInMillis = FileTailEventAdapterConstants.DEFAULT_DELAY_MILLIS;
    if (delayInMillisProperty != null && (!delayInMillisProperty.trim().isEmpty())) {
        delayInMillis = Integer.parseInt(delayInMillisProperty);
    }

    boolean startFromEnd = false;
    String startFromEndProperty = eventAdapterConfiguration.getProperties()
            .get(FileTailEventAdapterConstants.EVENT_ADAPTER_START_FROM_END);
    if (startFromEndProperty != null && (!startFromEndProperty.trim().isEmpty())) {
        startFromEnd = Boolean.parseBoolean(startFromEndProperty);
    }

    String filePath = eventAdapterConfiguration.getProperties()
            .get(FileTailEventAdapterConstants.EVENT_ADAPTER_CONF_FILEPATH);

    FileTailerListener listener = new FileTailerListener(new File(filePath).getName(), eventAdapterListener);
    Tailer tailer = new Tailer(new File(filePath), listener, delayInMillis, startFromEnd);
    fileTailerManager = new FileTailerManager(tailer, listener);
    singleThreadedExecutor.execute(tailer);
}

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