/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.airavata.gfac.utils;
import org.apache.airavata.gfac.context.JobExecutionContext;
import org.apache.airavata.gfac.context.security.GSISecurityContext;
import org.apache.airavata.gfac.notification.events.StatusChangeEvent;
import org.globus.gram.GramJob;
import org.globus.gram.GramJobListener;
import org.ietf.jgss.GSSCredential;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class GramJobSubmissionListener implements GramJobListener{
private final Logger log = LoggerFactory.getLogger(GramJobSubmissionListener.class);
public static final int NO_ERROR = -42;
public static final int INITIAL_STATUS = -43;
private volatile boolean jobDone = false;
private volatile int error = NO_ERROR;
private int currentStatus = INITIAL_STATUS;
private JobExecutionContext context;
private GramJob job;
public GramJobSubmissionListener(GramJob job, JobExecutionContext context) {
this.job = job;
this.context = context;
}
/**
* This method is used to block the process until the currentStatus of the job is DONE or FAILED
*/
public void waitFor() {
while (!isJobDone()) {
synchronized (this) {
try {
wait();
} catch (InterruptedException e) {}
}
}
}
private synchronized boolean isJobDone() {
return this.jobDone;
}
private void setStatus(int status, int error) {
GFacUtils.updateApplicationJobStatus(context,job.getIDAsString(),
GFacUtils.getApplicationJobStatus(status));
this.currentStatus = status;
this.error = error;
switch (this.currentStatus) {
case GramJob.STATUS_FAILED:
log.info("Job Error Code: " + error);
this.jobDone = true;
notifyAll();
case GramJob.STATUS_DONE:
this.jobDone = true;
notifyAll();
}
}
public synchronized void statusChanged(GramJob job) {
int jobStatus = job.getStatus();
String jobStatusMessage = "Status of job " + job.getIDAsString() + "is " + job.getStatusAsString();
/*
* Notify currentStatus change
*/
this.context.getNotifier().publish(new StatusChangeEvent(jobStatusMessage));
/*
* Set new currentStatus if it is jobDone, notify all wait object
*/
if (currentStatus != jobStatus) {
currentStatus = jobStatus;
setStatus(job.getStatus(), job.getError());
// Test to see whether we need to renew credentials
renewCredentials(job);
}
}
private void renewCredentials(GramJob job) {
try {
int proxyExpTime = job.getCredentials().getRemainingLifetime();
if (proxyExpTime < GSISecurityContext.CREDENTIAL_RENEWING_THRESH_HOLD) {
log.info("Job proxy expired. Trying to renew proxy");
GSSCredential gssCred = ((GSISecurityContext)context.
getSecurityContext(GSISecurityContext.GSI_SECURITY_CONTEXT)).renewCredentials();
job.renew(gssCred);
log.info("MyProxy credentials are renewed .");
}
} catch (Exception e) {
log.error("An error occurred while trying to renew credentials. Job id " + job.getIDAsString());
}
}
public synchronized int getError() {
return error;
}
public synchronized int getCurrentStatus() {
return currentStatus;
}
}