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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.servicemix.sca.tuscany;
import java.util.List;
import org.apache.tuscany.common.monitor.MonitorFactory;
import org.apache.tuscany.common.monitor.impl.NullMonitorFactory;
import org.apache.tuscany.core.builder.ContextFactoryBuilder;
import org.apache.tuscany.core.builder.impl.DefaultWireBuilder;
import org.apache.tuscany.core.config.ConfigurationException;
import org.apache.tuscany.core.config.ModuleComponentConfigurationLoader;
import org.apache.tuscany.core.context.AggregateContext;
import org.apache.tuscany.core.context.CoreRuntimeException;
import org.apache.tuscany.core.context.EventContext;
import org.apache.tuscany.core.context.SystemAggregateContext;
import org.apache.tuscany.core.runtime.RuntimeContext;
import org.apache.tuscany.core.runtime.RuntimeContextImpl;
import org.apache.tuscany.model.assembly.AssemblyModelContext;
import org.apache.tuscany.model.assembly.ModuleComponent;
import org.apache.tuscany.model.scdl.loader.SCDLModelLoader;
import org.osoa.sca.ModuleContext;
import org.osoa.sca.SCA;
import org.osoa.sca.ServiceRuntimeException;
public class TuscanyRuntime extends SCA {
private final TuscanyRuntime.Monitor monitor;
private final Object sessionKey = new Object();
private final RuntimeContext runtime;
private final AggregateContext moduleContext;
private final ModuleComponent moduleComponent;
private static final String SYSTEM_MODULE_COMPONENT = "org.apache.tuscany.core.system";
/**
* Construct a runtime using a null MonitorFactory.
*
* @param name the name of the module component
* @param uri the URI to assign to the module component
* @throws ConfigurationException if there was a problem loading the SCA configuration
* @see TuscanyRuntime#TuscanyRuntime(String, String, org.apache.tuscany.common.monitor.MonitorFactory)
*/
public TuscanyRuntime(String name, String uri) throws ConfigurationException {
this(name, uri,
Thread.currentThread().getContextClassLoader(),
new NullMonitorFactory());
}
/**
* Construct a runtime containing a single module component with the
* specified name. The module definition is loaded from a "/sca.module"
* resource found on the classpath of the current Thread context classloader.
*
* @param name the name of the module component
* @param uri the URI to assign to the module component
* @param classLoader the class loader to use for the assembly
* @param monitorFactory the MonitorFactory for this runtime
* @throws ConfigurationException if there was a problem loading the SCA configuration
*/
public TuscanyRuntime(String name, String uri, ClassLoader classLoader, MonitorFactory monitorFactory) throws ConfigurationException {
this.monitor = monitorFactory.getMonitor(TuscanyRuntime.Monitor.class);
// Create an assembly model context
AssemblyModelContext modelContext = BootstrapHelper.getModelContext(classLoader);
// Create a runtime context and start it
List<SCDLModelLoader> loaders = modelContext.getAssemblyLoader().getLoaders();
List<ContextFactoryBuilder> configBuilders = BootstrapHelper.getBuilders();
runtime = new RuntimeContextImpl(monitorFactory, loaders, configBuilders, new DefaultWireBuilder());
runtime.start();
monitor.started(runtime);
// Load and start the system configuration
SystemAggregateContext systemContext = runtime.getSystemContext();
ModuleComponentConfigurationLoader loader = BootstrapHelper.getConfigurationLoader(systemContext, modelContext);
ModuleComponent systemModuleComponent = loader.loadSystemModuleComponent(SYSTEM_MODULE_COMPONENT, SYSTEM_MODULE_COMPONENT);
AggregateContext context = BootstrapHelper.registerModule(systemContext, systemModuleComponent);
context.fireEvent(EventContext.MODULE_START, null);
// Load the SCDL configuration of the application module
AggregateContext rootContext = runtime.getRootContext();
moduleComponent = loader.loadModuleComponent(name, uri);
moduleContext = BootstrapHelper.registerModule(rootContext, moduleComponent);
}
public ModuleComponent getModuleComponent() {
return moduleComponent;
}
public AggregateContext getModuleContext() {
return moduleContext;
}
/**
* Start the runtime and associate the module context with the calling thread.
*/
@Override
public void start() {
setModuleContext((ModuleContext) moduleContext);
try {
//moduleContext.start();
moduleContext.fireEvent(EventContext.MODULE_START, null);
moduleContext.fireEvent(EventContext.REQUEST_START, null);
moduleContext.fireEvent(EventContext.SESSION_NOTIFY, sessionKey);
monitor.started(moduleContext);
} catch (CoreRuntimeException e) {
setModuleContext(null);
monitor.startFailed(moduleContext, e);
//FIXME throw a better exception
throw new ServiceRuntimeException(e);
}
}
/**
* Disassociate the module context from the current thread and shut down the runtime.
*/
@Override
public void stop() {
setModuleContext(null);
moduleContext.fireEvent(EventContext.REQUEST_END, null);
moduleContext.fireEvent(EventContext.SESSION_END, sessionKey);
moduleContext.fireEvent(EventContext.MODULE_STOP, null);
moduleContext.stop();
monitor.stopped(moduleContext);
runtime.stop();
monitor.stopped(runtime);
}
/**
* Monitor interface for a TuscanyRuntime.
*/
public static interface Monitor {
/**
* Event emitted after the runtime has been started.
*
* @param ctx the runtime's module component context
*/
void started(AggregateContext ctx);
/**
* Event emitted when an attempt to start the runtime failed.
*
* @param ctx the runtime's module component context
* @param e the exception that caused the failure
*/
void startFailed(AggregateContext ctx, CoreRuntimeException e);
/**
* Event emitted after the runtime has been stopped.
*
* @param ctx the runtime's module component context
*/
void stopped(AggregateContext ctx);
}
}
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