/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.pvm.internal.wire.binding;
import org.jbpm.pvm.internal.cmd.CommandService;
import org.jbpm.pvm.internal.jobexecutor.JobExecutor;
import org.jbpm.pvm.internal.util.XmlUtil;
import org.jbpm.pvm.internal.wire.descriptor.ContextTypeRefDescriptor;
import org.jbpm.pvm.internal.wire.descriptor.IntegerDescriptor;
import org.jbpm.pvm.internal.wire.descriptor.JobExecutorDescriptor;
import org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor;
import org.jbpm.pvm.internal.wire.descriptor.ReferenceDescriptor;
import org.jbpm.pvm.internal.wire.descriptor.StringDescriptor;
import org.jbpm.pvm.internal.wire.operation.InvokeOperation;
import org.jbpm.pvm.internal.xml.Parse;
import org.jbpm.pvm.internal.xml.Parser;
import org.w3c.dom.Element;
/** parses a descriptor for creating a {@link JobExecutor}.
*
* See schema docs for more details.
*
* @author Tom Baeyens
* @author Pascal Verdage
*/
public class JobExecutorBinding extends WireDescriptorBinding {
public JobExecutorBinding() {
super("job-executor");
}
public Object parse(Element element, Parse parse, Parser parser) {
// create a jobImpl executor object
JobExecutorDescriptor descriptor = new JobExecutorDescriptor();
// inject the command executor
if (element.hasAttribute("command-service")) {
descriptor.addInjection("commandService",
new ReferenceDescriptor(element.getAttribute("command-service"))
);
} else {
descriptor.addInjection("commandService",
new ContextTypeRefDescriptor(CommandService.class)
);
}
if (element.hasAttribute("name")) {
descriptor.addInjection("name", new StringDescriptor(element.getAttribute("name")));
}
parseIntAttribute(element, "threads", descriptor, "nbrOfThreads", parse);
parseIntAttribute(element, "idle", descriptor, "idleMillis", parse);
parseIntAttribute(element, "idle-max", descriptor, "idleMillisMax", parse);
parseIntAttribute(element, "history", descriptor, "historySize", parse);
parseIntAttribute(element, "lock", descriptor, "lockMillis", parse);
// by default invoke the start method, unless auto-start is disabled
if (XmlUtil.attributeBoolean(element, "auto-start", false, parse, true)) {
InvokeOperation invokeStartOperation = new InvokeOperation();
invokeStartOperation.setMethodName("start");
descriptor.addOperation(invokeStartOperation);
descriptor.setAutoStart(true);
}
return descriptor;
}
private void parseIntAttribute(Element element, String attributeName, ObjectDescriptor descriptor, String fieldName, Parse parse) {
Integer intValue = XmlUtil.attributeInteger(element, attributeName, false, parse);
if (intValue!=null) {
descriptor.addInjection(fieldName, new IntegerDescriptor(intValue));
}
}
}