/**
*
* 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.monitor.email.parser;
import org.apache.airavata.common.exception.AiravataException;
import org.apache.airavata.gfac.core.monitor.EmailParser;
import org.apache.airavata.gfac.core.monitor.JobStatusResult;
import org.apache.airavata.model.status.JobState;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.mail.Message;
import javax.mail.MessagingException;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PBSEmailParser implements EmailParser {
private static final Logger log = LoggerFactory.getLogger(PBSEmailParser.class);
public static final String BEGUN_EXECUTION = "Begun execution";
public static final String EXECUTION_TERMINATED = "Execution terminated";
public static final String ABORTED_BY_PBS_SERVER = "Aborted by PBS Server";
static final String REGEX = "[a-zA-Z ]*:[ ]*(?<" + JOBID + ">[a-zA-Z0-9-_\\.]*)\\s+[a-zA-Z ]*:[ ]*(?<" +
JOBNAME + ">[a-zA-Z0-9-\\.]*)\\s[\\S|\\s]*(?<" + STATUS + ">" + BEGUN_EXECUTION + "|" +
EXECUTION_TERMINATED + "|" + ABORTED_BY_PBS_SERVER + ")";
private static final String REGEX_EXIT_STATUS = "Exit_status=(?<" + EXIT_STATUS + ">[\\d]+)";
@Override
public JobStatusResult parseEmail(Message message) throws MessagingException, AiravataException {
JobStatusResult jobStatusResult = new JobStatusResult();
// log.info("Parsing -> " + message.getSubject());
try {
String content = ((String) message.getContent());
parseContent(content, jobStatusResult);
} catch (IOException e) {
throw new AiravataException("[EJM]: Error while reading content of the email message");
}
return jobStatusResult;
}
void parseContent(String content, JobStatusResult jobStatusResult) throws MessagingException, AiravataException {
content = content.replaceAll("[^\\x00-\\x7F]", "");
Pattern pattern = Pattern.compile(REGEX);
Matcher matcher = pattern.matcher(content);
if (matcher.find()) {
jobStatusResult.setJobId(matcher.group(JOBID));
jobStatusResult.setJobName(matcher.group(JOBNAME));
String statusLine = matcher.group(STATUS);
jobStatusResult.setState(getJobState(statusLine, content));
} else {
log.error("[EJM]: No matched found for content => \n" + content);
}
}
private JobState getJobState(String statusLine, String content) {
switch (statusLine) {
case BEGUN_EXECUTION:
return JobState.ACTIVE;
case EXECUTION_TERMINATED:
int exitStatus = getExitStatus(content);
if (exitStatus == 0) {
// TODO - Remove rabbitmq client script line from the script.
return JobState.COMPLETE;
} else if (exitStatus == 271) {
return JobState.CANCELED;
} else {
return JobState.FAILED;
}
case ABORTED_BY_PBS_SERVER:
return JobState.FAILED;
default:
return JobState.UNKNOWN;
}
}
private int getExitStatus(String content) {
Pattern pattern = Pattern.compile(REGEX_EXIT_STATUS);
Matcher matcher = pattern.matcher(content);
if (matcher.find()) {
String group = matcher.group(EXIT_STATUS);
if (group != null && !group.trim().isEmpty()) {
return Integer.valueOf(group.trim());
}
}
return -1;
}
}