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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.tuscany.sca.contribution.updater.impl;
import java.util.List;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.assembly.MetaComponent;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
import org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.DeployedArtifact;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.service.ContributionService;
import org.apache.tuscany.sca.contribution.updater.CompositeUpdater;
import org.apache.tuscany.sca.contribution.updater.CompositeUpdaterException;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.assembly.CompositeActivator;
import org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl;
import org.apache.tuscany.sca.contribution.updater.impl.ArtifactsFinder;
import org.apache.tuscany.sca.assembly.xml.MetaComponentProcessor;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
public class CompositeUpdaterImpl implements CompositeUpdater {
private CompositeBuilder compositeBuilder;
private String compositeURI;
private AssemblyFactory assemblyFactory;
private String contribURI;
private CompositeActivator compositeActivator;
private ExtensionPointRegistry registry;
private ContributionService contribService;
public CompositeUpdaterImpl(AssemblyFactory assembly, String contribURI,
String compositeURI, CompositeBuilder compositeBuilder,
CompositeActivator compositeActivator,
ExtensionPointRegistry registry, ContributionService contribService) {
this.compositeBuilder = compositeBuilder;
this.compositeURI = compositeURI;
this.assemblyFactory = assembly;
this.contribURI = contribURI;
this.compositeActivator = compositeActivator;
this.registry = registry;
this.contribService = contribService;
}
public Component addComponent(MetaComponent c)
throws CompositeUpdaterException {
StAXArtifactProcessorExtensionPoint staxProcessors = registry
.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
MetaComponentProcessor processor = (MetaComponentProcessor) staxProcessors
.getProcessor(Component.class);
Contribution contrib = contribService.getContribution(contribURI);
List<DeployedArtifact> artifacts = contrib.getArtifacts();
Composite composite = ArtifactsFinder.findComposite(compositeURI,
artifacts);
boolean found = false;
if (composite == null)
throw new CompositeUpdaterException(
"Composite not found in contribution" + contribURI);
else {
processor.setComposite(composite);
try {
processor.read(c.build());
} catch (Exception e) {
throw new CompositeUpdaterException(
"Component error parsing in contribution" + contribURI);
}
found = true;
}
if (found) {
Component component = processor.getParsedComponent();
Composite augmentedComposite = processor.getParsedComposite();
try {
processor.resolve(component, contrib.getModelResolver());
compositeBuilder.attach(augmentedComposite, component);
((CompositeActivatorImpl) compositeActivator)
.activateComponent(component);
} catch (Exception e) {
throw new CompositeUpdaterException(
"Cannot activate the component");
}
return component;
}
return null;
}
public Component findComponent(String componentName) {
Contribution contrib = contribService.getContribution(contribURI);
List<Composite> artifacts = contrib.getDeployables();
Composite composite = ArtifactsFinder.findComposite(compositeURI,
artifacts);
return ArtifactsFinder.findComponent(composite, componentName);
}
public Component removeComponent(String componentName)
throws CompositeUpdaterException {
Contribution contrib = contribService.getContribution(contribURI);
List<DeployedArtifact> artifacts = contrib.getArtifacts();
Composite composite = ArtifactsFinder.findComposite(compositeURI,
artifacts);
List<Component> components = composite.getComponents();
Component toRemove = null;
for (Component component : components) {
if (((RuntimeComponent) component).getName().equals(componentName)) {
toRemove = component;
break;
}
}
if (toRemove == null) {
throw new CompositeUpdaterException(
"Component not found in contribution" + contribURI);
} else {
// start again
try {
composite.getComponents().remove(toRemove);
CompositeActivatorImpl impl = (CompositeActivatorImpl) compositeActivator;
impl.stop(toRemove);
impl.deactivateComponent(toRemove);
CompositeBuilderImpl builder = (CompositeBuilderImpl) compositeBuilder;
builder.detach(composite, toRemove);
} catch (Exception e) {
throw new CompositeUpdaterException(
"Cannot remove composite from the contribution"
+ contribURI);
}
return toRemove;
}
}
}
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