/*
* 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.cfg;
import java.io.IOException;
import java.util.List;
import org.jbpm.api.ProcessEngine;
import org.jbpm.pvm.internal.env.Context;
import org.jbpm.pvm.internal.env.Environment;
import org.jbpm.pvm.internal.env.EnvironmentFactory;
import org.jbpm.pvm.internal.env.PvmEnvironment;
import org.jbpm.pvm.internal.env.SpringContext;
import org.jbpm.pvm.internal.env.WireObject;
import org.jbpm.pvm.internal.wire.WireContext;
import org.jbpm.pvm.internal.wire.WireDefinition;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
/**
* this environment factory will see only the singleton beans.
*
* The created {@link SpringEnvironment}s will see the prototype beans and it
* will cache them.
*
* @author Andries Inze
*/
public class SpringConfiguration extends JbpmConfiguration implements
EnvironmentFactory, ProcessEngine, ApplicationContextAware {
private static final long serialVersionUID = 1L;
private ApplicationContext applicationContext;
private String jbpmConfigurationLocation;
/**
* Instantiates a new spring configuration.
*/
public SpringConfiguration(String jbpmConfigurationLocation) {
try {
super.setInputStream(new ClassPathResource(
jbpmConfigurationLocation).getInputStream());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public SpringConfiguration() {
// By jbpmTestCase
}
@Override
public ProcessEngine buildProcessEngine() {
if (applicationContext == null) {
applicationContext = new ClassPathXmlApplicationContext(System
.getProperty("jbpm.test.cfg.applicationContext"));
}
return super.buildProcessEngine();
}
/**
* {@inheritDoc)
*/
@Override
public Environment openEnvironment(List<WireObject> txWireObjects) {
PvmEnvironment environment = new PvmEnvironment(this);
// FIXME: All beneath should be a super call
// set the classloader
ClassLoader classLoader = processEngineWireContext.getClassLoader();
if (classLoader != null) {
environment.setClassLoader(classLoader);
}
// add the process-engine context
environment.setContext(new SpringContext(applicationContext));
environment.setContext(processEngineWireContext);
// add the transaction context
WireDefinition usedWireDefinition = transactionWireDefinition;
if (txWireObjects != null) {
usedWireDefinition = new WireDefinition(transactionWireDefinition,
txWireObjects);
}
WireContext transactionContext = new WireContext(usedWireDefinition,
Context.CONTEXTNAME_TRANSACTION, environment, true);
// add the environment block context to the environment
environment.setContext(transactionContext);
Environment.pushEnvironment(environment);
try {
// finish the creation of the environment wire context
transactionContext.create();
} catch (RuntimeException e) {
Environment.popEnvironment();
throw e;
}
// if all went well, return the created environment
return environment;
}
@SuppressWarnings("unchecked")
@Override
public <T> T get(Class<T> type) {
String[] names = applicationContext.getBeanNamesForType(type);
if (names.length == 1) {
return (T) applicationContext.getBean(names[0]);
}
return super.get(type);
}
@Override
public Object get(String key) {
if (applicationContext.containsBean(key)) {
return applicationContext.getBean(key);
}
return super.get(key);
}
/**
* {@inheritDoc)
*/
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
/**
* Gets the application context.
*
* @return the application context
*/
public ApplicationContext getApplicationContext() {
return applicationContext;
}
}