/*
* 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.wire.binding;
import org.jbpm.client.CommandService;
import org.jbpm.jobexecutor.JobExecutor;
import org.jbpm.wire.descriptor.AbstractDescriptor;
import org.jbpm.wire.descriptor.IntegerDescriptor;
import org.jbpm.wire.descriptor.ObjectDescriptor;
import org.jbpm.wire.descriptor.StringDescriptor;
import org.jbpm.wire.descriptor.TypeRefDescriptor;
import org.jbpm.wire.operation.FieldOperation;
import org.jbpm.wire.operation.InvokeOperation;
import org.jbpm.xml.Binding;
import org.jbpm.xml.Parse;
import org.jbpm.xml.Parser;
import org.jbpm.xml.XmlUtil;
import org.w3c.dom.Element;
/**
* @author Tom Baeyens
*/
public class JobExecutorBinding implements Binding {
public Object parse(Element element, Parse parse, Parser parser) {
// create a job executor object
ObjectDescriptor descriptor = new ObjectDescriptor();
descriptor.setClassName(JobExecutor.class.getName());
// by default invoke the start method, unless auto-start is disabled
boolean autoStart = XmlUtil.booleanEquals(element, "auto-start", Boolean.TRUE);
if (autoStart) {
InvokeOperation invokeStartOperation = new InvokeOperation();
invokeStartOperation.setMethodName("start");
descriptor.addOperation(invokeStartOperation);
}
// by default eager initialization is enabled
// descriptor.setInit(AbstractDescriptor.INIT_REQUIRED);
// inject the command executor
TypeRefDescriptor commandExecutorDescriptor = new TypeRefDescriptor();
commandExecutorDescriptor.setContextClass(CommandService.class);
FieldOperation commandExecutorInjection = new FieldOperation();
commandExecutorInjection.setFieldName("commandService");
commandExecutorInjection.setDescriptor(commandExecutorDescriptor);
descriptor.addOperation(commandExecutorInjection);
if (element.hasAttribute("name")) {
StringDescriptor nameDescriptor = new StringDescriptor();
nameDescriptor.setValue(element.getAttribute("name"));
FieldOperation nameInjection = new FieldOperation();
nameInjection.setFieldName("name");
nameInjection.setDescriptor(nameDescriptor);
}
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);
parseIntAttribute(element, "lock-buffer", descriptor, "lockMillisBuffer", parse);
return descriptor;
}
private void parseIntAttribute(Element element, String attributeName, ObjectDescriptor descriptor, String fieldName, Parse parse) {
if (element.hasAttribute(attributeName)) {
String intText = element.getAttribute(attributeName);
try {
int intValue = Integer.parseInt(intText);
IntegerDescriptor intValueDescriptor = new IntegerDescriptor();
intValueDescriptor.setValue(intValue);
FieldOperation intValueInjection = new FieldOperation();
intValueInjection.setFieldName(fieldName);
intValueInjection.setDescriptor(intValueDescriptor);
descriptor.addOperation(intValueInjection);
} catch (NumberFormatException e) {
parse.addProblem("couldn't parse attribute "+attributeName+" as an integer: "+intText);
}
}
}
}