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/* Copyright (c) 2009 Peter Troshin
*
* JAva Bioinformatics Analysis Web Services (JABAWS) @version: 1.0
*
* This library is free software; you can redistribute it and/or modify it under the terms of the
* Apache License version 2 as published by the Apache Software Foundation
*
* This library 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 Apache
* License for more details.
*
* A copy of the license is in apache_license.txt. It is also available here:
* @see: http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Any republication or derived work distributed in source code form
* must include this copyright and license notice.
*/
package compbio.engine.local;
import java.io.IOException;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import org.apache.log4j.Logger;
import compbio.engine.SyncExecutor;
import compbio.engine.client.ConfiguredExecutable;
import compbio.metadata.JobExecutionException;
import compbio.metadata.JobStatus;
import compbio.metadata.JobSubmissionException;
import compbio.metadata.ResultNotAvailableException;
public final class LocalRunner implements SyncExecutor {
private static final Logger log = Logger.getLogger(LocalRunner.class);
/*
* If is not advisable to start threads statically, thus this field is not static
*/
private final ExecutorService executor;
private final ConfiguredExecutable<?> executable;
private Future<ConfiguredExecutable<?>> future;
private final String workDirectory;
public LocalRunner(ConfiguredExecutable<?> executable) {
if (executable == null) {
throw new IllegalArgumentException("Executable value is NULL. Executable must be provided!");
}
this.executor = LocalExecutorService.getExecutor();
this.executable = executable;
this.workDirectory = executable.getWorkDirectory();
// Save run configuration
try {
executable.saveRunConfiguration();
} catch (IOException e) {
log.error("Could not save run configuration! " + e.getMessage(), e.getCause());
}
}
@Override
public String getWorkDirectory() {
return this.workDirectory;
}
@Override
public boolean cancelJob() {
return LocalEngineUtil.cancelJob(future, getWorkDirectory());
}
Future<ConfiguredExecutable<?>> getFuture() {
return this.future;
}
@Override
public JobStatus getJobStatus() {
if (future == null) {
return LocalEngineUtil.getRecordedJobStatus(executable.getTaskId());
}
return LocalEngineUtil.getJobStatus(future);
}
@Override
public void executeJob()
throws JobSubmissionException {
ExecutableWrapper ewrapper = new ExecutableWrapper(executable, workDirectory);
this.future = executor.submit(ewrapper);
}
/**
* @throws CancellationException
*/
@Override
public ConfiguredExecutable<?> waitForResult()
throws JobExecutionException {
try {
return LocalEngineUtil.getResults(future, executable.getTaskId());
} catch (ResultNotAvailableException e) {
throw new JobExecutionException(e);
}
}
@Override
public boolean cleanup() {
return LocalEngineUtil.cleanup(executable);
}
}
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