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/*
* Copyright 2012 International Business Machines Corp.
*
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. Licensed 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 com.ibm.jbatch.container.api.impl;
import java.io.IOException;
import java.io.StringWriter;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.batch.operations.JobExecutionAlreadyCompleteException;
import jakarta.batch.operations.JobExecutionIsRunningException;
import jakarta.batch.operations.JobExecutionNotMostRecentException;
import jakarta.batch.operations.JobExecutionNotRunningException;
import jakarta.batch.operations.JobOperator;
import jakarta.batch.operations.JobRestartException;
import jakarta.batch.operations.JobSecurityException;
import jakarta.batch.operations.JobStartException;
import jakarta.batch.operations.NoSuchJobException;
import jakarta.batch.operations.NoSuchJobExecutionException;
import jakarta.batch.operations.NoSuchJobInstanceException;
import jakarta.batch.runtime.BatchStatus;
import jakarta.batch.runtime.JobExecution;
import jakarta.batch.runtime.JobInstance;
import jakarta.batch.runtime.StepExecution;
import com.ibm.jbatch.container.services.IBatchKernelService;
import com.ibm.jbatch.container.services.IJobExecution;
import com.ibm.jbatch.container.services.IJobStatusManagerService;
import com.ibm.jbatch.container.services.IPersistenceManagerService;
import com.ibm.jbatch.container.servicesmanager.ServicesManager;
import com.ibm.jbatch.container.servicesmanager.ServicesManagerImpl;
import com.ibm.jbatch.container.status.JobStatus;
import com.ibm.jbatch.spi.BatchSecurityHelper;
import com.ibm.jbatch.spi.services.IJobXMLLoaderService;
public class JobOperatorImpl implements JobOperator {
private final static String sourceClass = JobOperatorImpl.class.getName();
private final static Logger logger = Logger.getLogger(sourceClass);
private ServicesManager servicesManager = null;
private IBatchKernelService batchKernel = null;
private IPersistenceManagerService persistenceService = null;
private IJobXMLLoaderService jobXMLLoaderService = null;
private IJobStatusManagerService _jobStatusManagerService = null;
public JobOperatorImpl() {
servicesManager = ServicesManagerImpl.getInstance();
batchKernel = servicesManager.getBatchKernelService();
persistenceService = servicesManager.getPersistenceManagerService();
jobXMLLoaderService = servicesManager.getDelegatingJobXMLLoaderService();
_jobStatusManagerService = servicesManager.getJobStatusManagerService();
}
@Override
public long start(String jobXMLName, Properties jobParameters) throws JobStartException, JobSecurityException {
long retVal = 0L;
/*
* The whole point of this method is to have JobStartException serve as a blanket exception for anything other
* than the rest of the more specific exceptions declared on the throws clause. So we won't log but just rethrow.
*/
try {
retVal = startInternal(jobXMLName, jobParameters);
} catch (JobSecurityException e) {
throw e;
} catch (Exception e) {
throw new JobStartException(e);
}
return retVal;
}
private long startInternal(String jobXMLName, Properties jobParameters) throws JobStartException, JobSecurityException {
StringWriter jobParameterWriter = new StringWriter();
if (jobParameters != null) {
try {
jobParameters.store(jobParameterWriter, "Job parameters on start: ");
} catch (IOException e) {
jobParameterWriter.write("Job parameters on start: not printable");
}
} else {
jobParameterWriter.write("Job parameters on start = null");
}
if (logger.isLoggable(Level.FINE)) {
logger.fine("JobOperator start, with jobXMLName = " + jobXMLName + "\n" + jobParameterWriter.toString());
}
String jobXML = jobXMLLoaderService.loadJSL(jobXMLName);
long executionId = 0;
if (logger.isLoggable(Level.FINE)) {
int concatLen = jobXML.length() > 200 ? 200 : jobXML.length();
logger.fine("Starting job: " + jobXML.substring(0, concatLen) + "... truncated ...");
}
IJobExecution execution = batchKernel.startJob(jobXML, jobParameters);
executionId = execution.getExecutionId();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Started job with instanceId: " + execution.getInstanceId() + ", executionId: " + executionId);
}
return executionId;
}
@Override
public void abandon(long executionId)
throws NoSuchJobExecutionException, JobExecutionIsRunningException, JobSecurityException {
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(executionId))) {
IJobExecution jobEx = persistenceService.jobOperatorGetJobExecution(executionId);
// if it is not in STARTED or STARTING state, mark it as ABANDONED
List runningStatusesList = Arrays.asList(new BatchStatus[] {BatchStatus.STARTED, BatchStatus.STARTING});
Set runningStatusesSet = Collections.unmodifiableSet(new HashSet(runningStatusesList));
if (!runningStatusesSet.contains(jobEx.getBatchStatus())) {
// update table to reflect ABANDONED state
long time = System.currentTimeMillis();
Timestamp timestamp = new Timestamp(time);
persistenceService.updateBatchStatusOnly(jobEx.getExecutionId(), BatchStatus.ABANDONED, timestamp);
logger.fine("Job Execution: " + executionId + " was abandoned");
// Don't forget to update JOBSTATUS table
_jobStatusManagerService.updateJobBatchStatus(jobEx.getInstanceId(), BatchStatus.ABANDONED);
}
else {
logger.warning("Job Execution: " + executionId + " is still running");
throw new JobExecutionIsRunningException("Job Execution: " + executionId + " is still running");
}
} else {
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
}
@Override
public IJobExecution getJobExecution(long executionId)
throws NoSuchJobExecutionException, JobSecurityException {
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(executionId))) {
return batchKernel.getJobExecution(executionId);
} else {
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
}
@Override
public List getJobExecutions(JobInstance instance)
throws NoSuchJobInstanceException, JobSecurityException {
List executions = new ArrayList();
if (isAuthorized(instance.getInstanceId())) {
// Mediate between one
List executionImpls = persistenceService.jobOperatorGetJobExecutions(instance.getInstanceId());
if (executionImpls.size() == 0 ){
logger.warning("The current user is not authorized to perform this operation");
throw new NoSuchJobInstanceException( "Job: " + instance.getJobName() + " does not exist");
}
for (IJobExecution e : executionImpls) {
executions.add(e);
}
} else {
logger.warning("The current user is not authorized to perform this operation");
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
return executions;
}
@Override
public JobInstance getJobInstance(long executionId)
throws NoSuchJobExecutionException, JobSecurityException {
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(executionId))) {
return this.batchKernel.getJobInstance(executionId);
} else {
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
}
@Override
public int getJobInstanceCount(String jobName) throws NoSuchJobException, JobSecurityException {
int jobInstanceCount = 0;
BatchSecurityHelper helper = getBatchSecurityHelper();
if (isCurrentTagAdmin(helper)) {
// Do an unfiltered query
jobInstanceCount = persistenceService.jobOperatorGetJobInstanceCount(jobName);
} else {
jobInstanceCount = persistenceService.jobOperatorGetJobInstanceCount(jobName, helper.getCurrentTag());
}
if (jobInstanceCount > 0) {
return jobInstanceCount;
}
else {
logger.fine("getJobInstanceCount: Job Name " + jobName + " not found");
throw new NoSuchJobException( "Job " + jobName + " not found");
}
}
@Override
public List getJobInstances(String jobName, int start,
int count) throws NoSuchJobException, JobSecurityException {
logger.entering(sourceClass, "getJobInstances", new Object[]{jobName, start, count});
List jobInstances = new ArrayList();
if (count == 0) {
return new ArrayList();
} else if (count < 0) {
throw new IllegalArgumentException("Count should be a positive integer (or 0, which will return an empty list)");
}
List instanceIds;
BatchSecurityHelper helper = getBatchSecurityHelper();
if (isCurrentTagAdmin(helper)) {
// Do an unfiltered query
instanceIds = persistenceService.jobOperatorGetJobInstanceIds(jobName, start, count);
} else {
instanceIds = persistenceService.jobOperatorGetJobInstanceIds(jobName, helper.getCurrentTag(), start, count);
}
// get the jobinstance ids associated with this job name
if (instanceIds.size() > 0){
// for every job instance id
for (long id : instanceIds){
// get the job instance obj, add it to the list
JobStatus jobStatus = this._jobStatusManagerService.getJobStatus(id);
JobInstance jobInstance = jobStatus.getJobInstance();
logger.finest("Matched jobInstance = " + jobInstance.getInstanceId());
if(isAuthorized(jobInstance.getInstanceId())) {
logger.finest("Authorized so adding to list jobInstance = " + jobInstance.getInstanceId());
jobInstances.add(jobInstance);
}
}
// send the list of objs back to caller
logger.exiting(sourceClass, "getJobInstances", jobInstances);
return jobInstances;
} else {
logger.fine("getJobInstances: Job Name " + jobName + " not found");
throw new NoSuchJobException( "Job Name " + jobName + " not found");
}
}
/*
* This should only be called by the "external" JobOperator API, since it filters
* out the "subjob" parallel execution entries.
*/
@Override
public Set getJobNames() throws JobSecurityException {
Set jobNames = new HashSet();
Map data = persistenceService.jobOperatorGetExternalJobInstanceData();
Iterator> it = data.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = it.next();
long instanceId = entry.getKey();
if(isAuthorized(instanceId)) {
String name = entry.getValue();
jobNames.add(name);
}
}
return jobNames;
}
@Override
public Properties getParameters(long executionId)
throws NoSuchJobExecutionException, JobSecurityException{
Properties props = null;
JobInstance requestedJobInstance = batchKernel.getJobInstance(executionId);
if (isAuthorized(requestedJobInstance.getInstanceId())) {
props = persistenceService.getParameters(executionId);
} else {
logger.warning("getParameters: The current user is not authorized to perform this operation");
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
return props;
}
@Override
public List getRunningExecutions(String jobName)
throws NoSuchJobException, JobSecurityException {
logger.entering(sourceClass, "getRunningExecutions", jobName);
List jobExecutions = new ArrayList();
// get the jobexecution ids associated with this job name
Set executionIds = persistenceService.jobOperatorGetRunningExecutions(jobName);
if (executionIds.size() > 0){
// for every job instance id
for (long id : executionIds){
try {
logger.finer("Examining executionId: " + id);
if(isAuthorized(persistenceService.getJobInstanceIdByExecutionId(id))) {
if (batchKernel.isExecutionRunning(id)) {
IJobExecution jobEx = batchKernel.getJobExecution(id);
jobExecutions.add(jobEx.getExecutionId());
} else {
logger.finer("Found executionId: " + id + " with a BatchStatus indicating running, but kernel doesn't currently have an entry for this execution in the kernel's in-memory map.");
}
} else {
logger.finer("Don't have authorization for executionId: " + id);
}
} catch (NoSuchJobExecutionException e) {
String errorMsg = "Just found execution with id = " + id + " in table, but now seeing it as gone";
logger.severe(errorMsg);
throw new IllegalStateException(errorMsg, e);
}
}
// send the list of objs back to caller
logger.exiting(sourceClass, "getRunningExecutions", jobExecutions);
return jobExecutions;
}
else {
logger.fine("getRunningExecutions: Job Name " + jobName + " not found");
throw new NoSuchJobException( "Job Name " + jobName + " not found");
}
}
@Override
public List getStepExecutions(long executionId)
throws NoSuchJobExecutionException, JobSecurityException {
logger.entering(sourceClass, "getStepExecutions", executionId);
List stepExecutions = new ArrayList();
IJobExecution jobEx = batchKernel.getJobExecution(executionId);
if (jobEx == null){
logger.fine("Job Execution: " + executionId + " not found");
throw new NoSuchJobExecutionException("Job Execution: " + executionId + " not found");
}
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(executionId))) {
stepExecutions = persistenceService.getStepExecutionsForJobExecution(executionId);
} else {
logger.warning("getStepExecutions: The current user is not authorized to perform this operation");
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
logger.exiting(sourceClass, "getStepExecutions", stepExecutions);
return stepExecutions;
}
@Override
public long restart(long oldExecutionId, Properties restartParameters) throws JobExecutionAlreadyCompleteException,
NoSuchJobExecutionException, JobExecutionNotMostRecentException, JobRestartException, JobSecurityException {
/*
* The whole point of this method is to have JobRestartException serve as a blanket exception for anything other
* than the rest of the more specific exceptions declared on the throws clause. So we won't log but just rethrow.
*/
long retVal = 0L;
try {
retVal = restartInternal(oldExecutionId, restartParameters);
} catch (JobExecutionAlreadyCompleteException e) {
throw e;
} catch (NoSuchJobExecutionException e) {
throw e;
} catch (JobExecutionNotMostRecentException e) {
throw e;
} catch (JobSecurityException e) {
throw e;
} catch (Exception e) {
throw new JobRestartException(e);
}
return retVal;
}
private long restartInternal(long oldExecutionId, Properties restartParameters) throws JobExecutionAlreadyCompleteException,
NoSuchJobExecutionException, JobExecutionNotMostRecentException, JobRestartException, JobSecurityException {
long newExecutionId = -1;
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(oldExecutionId))) {
StringWriter jobParameterWriter = new StringWriter();
if (restartParameters != null) {
try {
restartParameters.store(jobParameterWriter, "Job parameters on restart: ");
} catch (IOException e) {
jobParameterWriter.write("Job parameters on restart: not printable");
}
} else {
jobParameterWriter.write("Job parameters on restart = null");
}
if (logger.isLoggable(Level.FINE)) {
logger.fine("JobOperator restart, with old executionId = " + oldExecutionId + "\n" + jobParameterWriter.toString());
}
IJobExecution execution = batchKernel.restartJob(oldExecutionId, restartParameters);
newExecutionId = execution.getExecutionId();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Restarted job with instanceID: " + execution.getInstanceId() + ", new executionId: " + newExecutionId + ", and old executionID: " + oldExecutionId);
}
} else {
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
return newExecutionId;
}
@Override
public void stop(long executionId) throws NoSuchJobExecutionException,
JobExecutionNotRunningException, JobSecurityException {
logger.entering(sourceClass, "stop", executionId);
if (isAuthorized(persistenceService.getJobInstanceIdByExecutionId(executionId))) {
batchKernel.stopJob(executionId);
} else {
throw new JobSecurityException("The current user is not authorized to perform this operation");
}
logger.exiting(sourceClass, "stop");
}
public void purge(String apptag) {
BatchSecurityHelper bsh = getBatchSecurityHelper();
if (isCurrentTagAdmin(bsh)) {
logger.finer("Current tag is admin, so authorized to purge.");
persistenceService.purge(apptag);
} else if (bsh.getCurrentTag().equals(apptag)) {
logger.finer("Current tag is the tag of record so authorized to purge.");
persistenceService.purge(apptag);
} else {
logger.finer("Current tag does not match the tag of record so will not purge.");
}
}
private boolean isAuthorized(long instanceId) {
logger.entering(sourceClass, "isAuthorized", instanceId);
boolean retVal = false;
String apptag = persistenceService.getJobCurrentTag(instanceId);
BatchSecurityHelper bsh = getBatchSecurityHelper();
if (isCurrentTagAdmin(bsh)) {
logger.finer("Current tag is admin, so always authorized");
retVal = true;
} else if (bsh.getCurrentTag().equals(apptag)) {
logger.finer("Current tag is the tag of record");
retVal = true;
} else {
logger.finer("Current tag does not match the tag of record");
retVal = false;
}
logger.exiting(sourceClass, "isAuthorized", retVal);
return retVal;
}
private boolean isCurrentTagAdmin(BatchSecurityHelper helper) {
return helper.isAdmin(helper.getCurrentTag());
}
private BatchSecurityHelper getBatchSecurityHelper() {
BatchSecurityHelper bsh = batchKernel.getBatchSecurityHelper();
if (bsh == null) {
throw new IllegalStateException("Expect to have a security helper, at least the NoOp security helper.");
}
return bsh;
}
}
