/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.wire.binding;
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import org.jbpm.pvm.internal.cmd.CommandService;
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import org.jbpm.pvm.internal.jobexecutor.JobExecutor;
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import org.jbpm.pvm.internal.util.XmlUtil;
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import org.jbpm.pvm.internal.wire.descriptor.AbstractDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.IntegerDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.JobExecutorDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.ReferenceDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.StringDescriptor;
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import org.jbpm.pvm.internal.wire.operation.InvokeOperation;
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import org.jbpm.pvm.internal.xml.Parse;
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import org.jbpm.pvm.internal.xml.Parser;
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import org.w3c.dom.Element;
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/** parses a descriptor for creating a {@link JobExecutor}.
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*
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* See schema docs for more details.
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*
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* @author Tom Baeyens
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* @author Pascal Verdage
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*/
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public class JobExecutorBinding extends WireDescriptorBinding {
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public JobExecutorBinding() {
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super("job-executor");
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}
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public Object parse(Element element, Parse parse, Parser parser) {
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// create a jobImpl executor object
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JobExecutorDescriptor descriptor = new JobExecutorDescriptor();
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// inject the command executor
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if (element.hasAttribute("command-service")) {
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descriptor.addInjection("commandService",
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new ReferenceDescriptor(element.getAttribute("command-service"))
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);
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} else {
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descriptor.addInjection("commandService",
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new ReferenceDescriptor(CommandService.NAME_TX_REQUIRED_COMMAND_SERVICE)
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);
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}
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if (element.hasAttribute("name")) {
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descriptor.addInjection("name", new StringDescriptor(element.getAttribute("name")));
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}
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parseIntAttribute(element, "threads", descriptor, "nbrOfThreads", parse);
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parseIntAttribute(element, "idle", descriptor, "idleMillis", parse);
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parseIntAttribute(element, "idle-max", descriptor, "idleMillisMax", parse);
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parseIntAttribute(element, "history", descriptor, "historySize", parse);
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parseIntAttribute(element, "lock", descriptor, "lockMillis", parse);
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// by default invoke the start method, unless auto-start is disabled
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if (XmlUtil.attributeBoolean(element, "auto-start", false, parse, true)) {
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InvokeOperation invokeStartOperation = new InvokeOperation();
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invokeStartOperation.setMethodName("start");
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descriptor.addOperation(invokeStartOperation);
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descriptor.setAutoStart(true);
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descriptor.setInit(AbstractDescriptor.INIT_EAGER);
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}
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return descriptor;
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}
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private void parseIntAttribute(Element element, String attributeName, ObjectDescriptor descriptor, String fieldName, Parse parse) {
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Integer intValue = XmlUtil.attributeInteger(element, attributeName, false, parse);
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if (intValue!=null) {
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descriptor.addInjection(fieldName, new IntegerDescriptor(intValue));
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}
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}
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}
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