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