/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package test.shell.sync;
import org.crsh.AbstractTestCase;
import org.crsh.cli.impl.completion.CompletionMatch;
import org.crsh.keyboard.KeyHandler;
import org.crsh.shell.Shell;
import org.crsh.shell.ShellProcess;
import org.crsh.shell.ShellProcessContext;
import java.io.IOException;
import java.util.LinkedList;
import java.util.concurrent.atomic.AtomicReference;
public class SyncShell implements Shell {
/** . */
private final LinkedList<Throwable> failures;
/** . */
private final Object lock;
/** . */
private final LinkedList<SyncProcess> queue;
/** . */
private AtomicReference<SyncCompleter> completer;
public SyncShell() {
this.lock = new Object();
this.queue = new LinkedList<SyncProcess>();
this.failures = new LinkedList<Throwable>();
this.completer = new AtomicReference<SyncCompleter>();
}
public void setCompleter(SyncCompleter completer) {
this.completer.set(completer);
}
public void addProcess(SyncProcess process) {
synchronized (lock) {
queue.add(process);
lock.notifyAll();
}
}
public String getWelcome() {
return "";
}
public String getPrompt() {
return "";
}
public ShellProcess createProcess(final String request) throws IllegalStateException {
synchronized (lock) {
while (true) {
if (queue.size() > 0) {
final SyncProcess runnable = queue.removeFirst();
return new ShellProcess() {
@Override
public void execute(ShellProcessContext processContext) throws IllegalStateException {
try {
runnable.run(request, processContext);
}
catch (Exception e) {
throw AbstractTestCase.failure(e);
}
}
@Override
public KeyHandler getKeyHandler() throws IllegalStateException {
return runnable.keyHandler();
}
@Override
public void cancel() throws IllegalStateException {
runnable.cancel();
}
};
} else {
try {
lock.wait();
}
catch (InterruptedException e) {
throw AbstractTestCase.failure(e);
}
}
}
}
}
public CompletionMatch complete(String prefix) {
SyncCompleter completer = this.completer.get();
return completer != null ? completer.complete(prefix) : null;
}
public void close() throws IOException {
}
}