org.apache.commons.io.input.TailerListener Java Examples

The following examples show how to use org.apache.commons.io.input.TailerListener. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: CsvStreamReader.java    From Quicksql with MIT License 6 votes vote down vote up 
/**
 * Creates a CsvStreamReader with supplied separator and quote char.
 *
 * @param source The file to an underlying CSV source
 * @param separator The delimiter to use for separating entries
 * @param quoteChar The character to use for quoted elements
 * @param escape The character to use for escaping a separator or quote
 * @param line The line number to skip for start reading
 * @param strictQuotes Sets if characters outside the quotes are ignored
 * @param ignoreLeadingWhiteSpace If true, parser should ignore
 *  white space before a quote in a field
 */
private CsvStreamReader(Source source, char separator, char quoteChar,
                        char escape, int line, boolean strictQuotes,
                        boolean ignoreLeadingWhiteSpace) {
  super(new StringReader("")); // dummy call to base constructor
  contentQueue = new ArrayDeque<>();
  TailerListener listener = new CsvContentListener(contentQueue);
  tailer = Tailer.create(source.file(), listener, DEFAULT_MONITOR_DELAY,
      false, true, 4096);
  this.parser = new CSVParser(separator, quoteChar, escape, strictQuotes,
      ignoreLeadingWhiteSpace);
  this.skipLines = line;
  try {
    // wait for tailer to capture data
    Thread.sleep(DEFAULT_MONITOR_DELAY);
  } catch (InterruptedException e) {
    throw new RuntimeException(e);
  }
}
Example #2
Source File: TailingVerifier.java    From app-maven-plugin with Apache License 2.0 6 votes vote down vote up 
private void startTailingLog() {
  TailerListener listener =
      new TailerListenerAdapter() {
        @Override
        public void handle(String line) {
          System.out.println(testName + ": " + line);
        }
      };

  // Tail the log
  File file = new File(getBasedir() + File.separator + getLogFileName());
  try {
    if (file.exists()) {
      file.delete();
    }
    file.createNewFile();
  } catch (IOException e) {
    e.printStackTrace();
  }
  Tailer tailer = new Tailer(file, listener, TAIL_DELAY_MILLIS);
  Thread thread = new Thread(tailer);
  thread.setDaemon(true);
  thread.start();
}
Example #3
Source File: CsvStreamReader.java    From calcite with Apache License 2.0 6 votes vote down vote up 
/**
 * Creates a CsvStreamReader with supplied separator and quote char.
 *
 * @param source The file to an underlying CSV source
 * @param separator The delimiter to use for separating entries
 * @param quoteChar The character to use for quoted elements
 * @param escape The character to use for escaping a separator or quote
 * @param line The line number to skip for start reading
 * @param strictQuotes Sets if characters outside the quotes are ignored
 * @param ignoreLeadingWhiteSpace If true, parser should ignore
 *  white space before a quote in a field
 */
private CsvStreamReader(Source source, char separator, char quoteChar,
    char escape, int line, boolean strictQuotes,
    boolean ignoreLeadingWhiteSpace) {
  super(new StringReader("")); // dummy call to base constructor
  contentQueue = new ArrayDeque<>();
  TailerListener listener = new CsvContentListener(contentQueue);
  tailer = Tailer.create(source.file(), listener, DEFAULT_MONITOR_DELAY,
      false, true, 4096);
  this.parser = new CSVParser(separator, quoteChar, escape, strictQuotes,
      ignoreLeadingWhiteSpace);
  this.skipLines = line;
  try {
    // wait for tailer to capture data
    Thread.sleep(DEFAULT_MONITOR_DELAY);
  } catch (InterruptedException e) {
    throw new RuntimeException(e);
  }
}
Example #4
Source File: LogTailer.java    From micro-server with Apache License 2.0 5 votes vote down vote up 
public void tail(TailerListener listener) {

        File file = new File(
                             fileLocation);
        Tailer tailer = Tailer.create(file, listener, 10);

        tailer.run();
    }
Example #5
Source File: LogTailer.java    From micro-server with Apache License 2.0 5 votes vote down vote up 
public void tail(TailerListener listener, String alias) {
    File file = logLookup.map(l -> l.lookup(alias))
                         .orElse(new File(
                                          fileLocation));
    Tailer tailer = Tailer.create(file, listener, 10);
    tailer.run();
}
Example #6
Source File: FileTailer.java    From websockets-log-tail with Apache License 2.0 5 votes vote down vote up 
public Observable<String> getStream(final long pollIntervalMs) {
    return Observable.create(new ObservableOnSubscribe<String>() {

        @Override
        public void subscribe(ObservableEmitter<String> emitter) throws Exception {
            TailerListener listener = createListener(emitter);
            final Tailer tailer = new Tailer(file, listener, pollIntervalMs);
            try {
                tailer.run();
            } catch (Throwable e) {
                emitter.onError(e);
            }
        }
    });
}