/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package org.voltdb.regressionsuites;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
/**
* Can be used as a pipe output watcher that looks for a string.
* Uses a timeout to fail if expected string not seen.
* TODO: Extend for regex
*/
class OutputWatcher
{
private final String m_searchString;
private final long m_timeout;
private CountDownLatch m_foundLatch = new CountDownLatch(1);
OutputWatcher(String string, long timeout, TimeUnit unit) {
m_searchString = string;
m_timeout = unit.toMillis(timeout); // internally represent timeout as milliseconds
}
public void handleLine(String line)
{
//TODO: Regex
if (line.contains(m_searchString)) {
// below line is noop if already triggered
m_foundLatch.countDown();
}
}
boolean waitForString() {
try {
m_foundLatch.await(m_timeout, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
return false;
}
return true;
}
}