Author: rob.stryker(a)jboss.com Date: 2010-12-14 01:36:24 -0500 (Tue, 14 Dec 2010) New Revision: 27427 Added: trunk/common/plugins/org.jboss.tools.common/src/org/jboss/tools/common/jobs/ trunk/common/plugins/org.jboss.tools.common/src/org/jboss/tools/common/jobs/ChainedJob.java Modified: trunk/common/plugins/org.jboss.tools.common/META-INF/MANIFEST.MF Log: add chained-job to common plugin as possible central location Modified: trunk/common/plugins/org.jboss.tools.common/META-INF/MANIFEST.MF =================================================================== --- trunk/common/plugins/org.jboss.tools.common/META-INF/MANIFEST.MF 2010-12-14 01:38:52 UTC (rev 27426) +++ trunk/common/plugins/org.jboss.tools.common/META-INF/MANIFEST.MF 2010-12-14 06:36:24 UTC (rev 27427) @@ -12,6 +12,7 @@ org.jboss.tools.common.reporting, org.jboss.tools.common.text, org.jboss.tools.common.util, + org.jboss.tools.common.jobs, org.jboss.tools.common.xml, org.jboss.tools.common.zip Require-Bundle: org.eclipse.core.runtime, @@ -26,7 +27,7 @@ org.eclipse.jdt.ui, org.eclipse.ui.workbench.texteditor, org.eclipse.jface.text, - org.apache.commons.httpclient;bundle-version="3.1.0" + org.apache.commons.httpclient Bundle-Version: 3.2.0.qualifier Bundle-ActivationPolicy: lazy Bundle-ManifestVersion: 2 Added: trunk/common/plugins/org.jboss.tools.common/src/org/jboss/tools/common/jobs/ChainedJob.java =================================================================== --- trunk/common/plugins/org.jboss.tools.common/src/org/jboss/tools/common/jobs/ChainedJob.java (rev 0) +++ trunk/common/plugins/org.jboss.tools.common/src/org/jboss/tools/common/jobs/ChainedJob.java 2010-12-14 06:36:24 UTC (rev 27427) @@ -0,0 +1,92 @@ +/******************************************************************************* + * Copyright (c) 2005, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - Initial API and implementation + *******************************************************************************/ +package org.jboss.tools.common.jobs; + +import org.eclipse.core.runtime.IStatus; +import org.eclipse.core.runtime.jobs.IJobChangeEvent; +import org.eclipse.core.runtime.jobs.IJobChangeListener; +import org.eclipse.core.runtime.jobs.Job; +import org.eclipse.core.runtime.jobs.JobChangeAdapter; + +/** + * A Job that can start another job upon successful completion. + */ +public abstract class ChainedJob extends Job { + private Job nextJob; + private IJobChangeListener listener; + private String family; + + /** + * Create a new dependent job. + * + * @param name the name of the job + * @param server the server to publish to + */ + public ChainedJob(String name, String family) { + super(name); + this.family = family; + } + + /** + * @see Job#belongsTo(java.lang.Object) + */ + public boolean belongsTo(Object family) { + return this.family.equals(family); + } + + + /** + * Create a listener for when this job finishes. + */ + protected void createListener() { + if (listener != null) + return; + + listener = new JobChangeAdapter() { + public void done(IJobChangeEvent event) { + jobDone(event.getResult()); + } + }; + + addJobChangeListener(listener); + } + + /** + * Called when this job is complete. + * + * @param status the result of the current job + */ + protected void jobDone(IStatus status) { + if (listener == null) + return; + + removeJobChangeListener(listener); + listener = null; + + if (nextJob != null && status != null && status.getSeverity() != IStatus.ERROR + && status.getSeverity() != IStatus.CANCEL) + nextJob.schedule(); + } + + /** + * Set the next job, which should be scheduled if and only if this job completes + * successfully. The next job will be run as long as the result of this job is + * not an ERROR or CANCEL status. + * This method is not thread-safe. However, the next job can be changed anytime + * up until the current job completes. + * + * @param job the next job that should be scheduled + */ + public void setNextJob(Job job) { + nextJob = job; + createListener(); + } +}