/*******************************************************************************
* Copyright (c) 2009-2013 Vlad Dumitrescu and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available
* at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vlad Dumitrescu
*******************************************************************************/
package org.erlide.backend.console;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.erlide.backend.api.IBackend;
import org.erlide.runtime.shell.IBackendShell;
import org.erlide.util.ErlLogger;
import org.erlide.util.IDisposable;
import com.ericsson.otp.erlang.OtpErlangPid;
public class BackendShellManager implements IDisposable {
private final IBackend backend;
private final Map<String, BackendShell> fShells;
public BackendShellManager(final IBackend backend) {
this.backend = backend;
fShells = new HashMap<String, BackendShell>();
}
public BackendShell getShell(final String id) {
final BackendShell shell = fShells.get(id);
return shell;
}
public synchronized IBackendShell openShell(final String id) {
BackendShell shell = getShell(id);
if (shell == null) {
OtpErlangPid server = null;
try {
server = new ErlideReshd().start(backend.getNodeProxy());
} catch (final Exception e) {
ErlLogger.warn(e);
}
shell = new BackendShell(backend, id, server);
shell.open();
fShells.put(id, shell);
}
return shell;
}
public synchronized void closeShell(final String id) {
final IBackendShell shell = getShell(id);
if (shell != null) {
fShells.remove(id);
shell.close();
}
}
@Override
public void dispose() {
final Collection<BackendShell> c = fShells.values();
for (final IBackendShell backendShell : c) {
backendShell.close();
}
fShells.clear();
}
}