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/*
* SonarQube
* Copyright (C) 2009-2016 SonarSource SA
* mailto:contact 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.process;
import java.io.File;
import org.slf4j.LoggerFactory;
/**
* Default implementation of {@link ProcessCommands} based on a {@link AllProcessesCommands} of which will request a
* single {@link ProcessCommands} to use as delegate for the specified processNumber.
*/
public class DefaultProcessCommands implements ProcessCommands {
private final AllProcessesCommands allProcessesCommands;
private final ProcessCommands delegate;
private DefaultProcessCommands(File directory, int processNumber, boolean clean) {
this.allProcessesCommands = new AllProcessesCommands(directory);
this.delegate = clean ? allProcessesCommands.createAfterClean(processNumber) : allProcessesCommands.create(processNumber);
}
/**
* Main DefaultProcessCommands will clear the shared memory space of the specified process number when created and will
* then write and/or read to it.
* Therefor there should be only one main DefaultProcessCommands.
*/
public static DefaultProcessCommands main(File directory, int processNumber) {
return new DefaultProcessCommands(directory, processNumber, true);
}
/**
* Secondary DefaultProcessCommands will read and write to the shared memory space but will not clear it. Therefor, there
* can be any number of them.
*/
public static DefaultProcessCommands secondary(File directory, int processNumber) {
return new DefaultProcessCommands(directory, processNumber, false);
}
@Override
public boolean isUp() {
return delegate.isUp();
}
@Override
public void setUp() {
delegate.setUp();
}
@Override
public boolean isOperational() {
return delegate.isOperational();
}
@Override
public void setOperational() {
delegate.setOperational();
}
@Override
public void ping() {
delegate.ping();
}
@Override
public long getLastPing() {
return delegate.getLastPing();
}
@Override
public void askForStop() {
delegate.askForStop();
}
@Override
public boolean askedForStop() {
return delegate.askedForStop();
}
@Override
public void askForRestart() {
delegate.askForRestart();
}
@Override
public boolean askedForRestart() {
return delegate.askedForRestart();
}
@Override
public void acknowledgeAskForRestart() {
delegate.acknowledgeAskForRestart();
}
@Override
public void endWatch() {
try {
close();
} catch (Exception e) {
LoggerFactory.getLogger(getClass()).error("Failed to close DefaultProcessCommands", e);
}
}
@Override
public void close() {
allProcessesCommands.close();
}
}
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