/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.application.process;
import java.io.InputStream;
import java.util.concurrent.TimeUnit;
public interface ProcessMonitor {
/**
* @see Process#getInputStream()
*/
InputStream getInputStream();
/**
* Closes the streams {@link Process#getInputStream()}, {@link Process#getOutputStream()}
* and {@link Process#getErrorStream()}.
*
* No exceptions are thrown in case of errors.
*/
void closeStreams();
/**
* @see Process#isAlive()
*/
boolean isAlive();
/**
* @see Process#destroyForcibly()
*/
void destroyForcibly();
/**
* @see Process#waitFor()
*/
void waitFor() throws InterruptedException;
/**
* @see Process#waitFor(long, TimeUnit)
*/
void waitFor(long timeout, TimeUnit timeoutUnit) throws InterruptedException;
/**
* Whether the process has set the operational flag (in ipc shared memory)
*/
boolean isOperational();
/**
* Send request to gracefully stop to the process (via ipc shared memory)
*/
void askForStop();
/**
* Whether the process asked for a full restart (via ipc shared memory)
*/
boolean askedForRestart();
/**
* Removes the flag in ipc shared memory so that next call to {@link #askedForRestart()}
* returns {@code false}, except if meanwhile process asks again for restart.
*/
void acknowledgeAskForRestart();
}