/*
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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.jpdl.internal.activity;
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import java.util.List;
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import javax.naming.InitialContext;
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import org.jbpm.api.JbpmException;
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import org.jbpm.api.model.OpenExecution;
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import org.jbpm.pvm.internal.wire.WireContext;
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import org.jbpm.pvm.internal.wire.WireDefinition;
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import org.jbpm.pvm.internal.wire.descriptor.ArgDescriptor;
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import org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor;
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import org.jbpm.pvm.internal.wire.usercode.UserCodeReference;
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/**
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* @author Tom Baeyens
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* @author Koen Aers
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*/
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public class JavaActivity extends JpdlAutomaticActivity {
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private static final long serialVersionUID = 1L;
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protected UserCodeReference invocationReference;
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protected String methodName = null;
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protected List<ArgDescriptor> argDescriptors = null;
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protected String variableName;
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protected String jndiName;
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public void perform(OpenExecution execution) throws Exception {
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Object target = null;
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if (invocationReference != null) {
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target = invocationReference.getObject(execution);
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} else if (jndiName != null) {
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target = new InitialContext().lookup(jndiName);
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} else {
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throw new JbpmException("no target specified");
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}
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Class<?> clazz;
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// method invocation on object or static method invocation in case object is null
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if (target!=null) {
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clazz = target.getClass();
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} else {
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ObjectDescriptor objectDescriptor = (ObjectDescriptor) invocationReference.getDescriptor();
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String className = objectDescriptor.getClassName();
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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clazz = Class.forName(className, true, classLoader);
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}
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WireContext wireContext = new WireContext(new WireDefinition());
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Object returnValue = ObjectDescriptor.invokeMethod(methodName, argDescriptors, wireContext, target, clazz);
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if (variableName!=null) {
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execution.setVariable(variableName, returnValue);
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}
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}
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public void setInvocationReference(UserCodeReference invocationReference) {
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this.invocationReference = invocationReference;
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}
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public void setVariableName(String variableName) {
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this.variableName = variableName;
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}
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public String getMethodName() {
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return methodName;
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}
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public void setMethodName(String methodName) {
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this.methodName = methodName;
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}
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public void setJndiName(String jndiName) {
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this.jndiName = jndiName;
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}
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public List<ArgDescriptor> getArgDescriptors() {
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return argDescriptors;
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}
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public void setArgDescriptors(List<ArgDescriptor> argDescriptors) {
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this.argDescriptors = argDescriptors;
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}
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public UserCodeReference getInvocationReference() {
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return invocationReference;
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}
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public String getVariableName() {
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return variableName;
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}
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public String getJndiName() {
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return jndiName;
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}
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}
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