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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.workspace.processor.impl;
import java.io.File;
import java.net.URI;
import java.net.URL;
import java.util.List;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.ContributionFactory;
import org.apache.tuscany.sca.contribution.ContributionMetadata;
import org.apache.tuscany.sca.contribution.DefaultExport;
import org.apache.tuscany.sca.contribution.DefaultImport;
import org.apache.tuscany.sca.contribution.Export;
import org.apache.tuscany.sca.contribution.Import;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.resolver.DefaultModelResolver;
import org.apache.tuscany.sca.contribution.resolver.ExtensibleModelResolver;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint;
import org.apache.tuscany.sca.contribution.scanner.ContributionScanner;
import org.apache.tuscany.sca.contribution.scanner.ContributionScannerExtensionPoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.workspace.scanner.impl.DirectoryContributionScanner;
import org.apache.tuscany.sca.workspace.scanner.impl.JarContributionScanner;
/**
* URLArtifactProcessor that handles contribution files and the artifacts they contain
* and returns a contribution model.
*
* @version $Rev$ $Date$
*/
public class ContributionContentProcessor implements URLArtifactProcessor<Contribution>{
private ContributionFactory contributionFactory;
private ModelResolverExtensionPoint modelResolvers;
private FactoryExtensionPoint modelFactories;
private URLArtifactProcessor<Object> artifactProcessor;
private StAXArtifactProcessor<Object> extensionProcessor;
// private UtilityExtensionPoint utilities;
private Monitor monitor;
private ContributionScannerExtensionPoint scanners;
public ContributionContentProcessor(ExtensionPointRegistry extensionPoints, StAXArtifactProcessor<Object> extensionProcessor, Monitor monitor) {
this.modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
this.modelResolvers = extensionPoints.getExtensionPoint(ModelResolverExtensionPoint.class);
this.monitor = monitor;
URLArtifactProcessorExtensionPoint artifactProcessors = extensionPoints.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
this.artifactProcessor = new ExtensibleURLArtifactProcessor(artifactProcessors, this.monitor);
this.extensionProcessor = extensionProcessor;
this.contributionFactory = modelFactories.getFactory(ContributionFactory.class);
this.scanners = extensionPoints.getExtensionPoint(ContributionScannerExtensionPoint.class);
}
/*
public ContributionContentProcessor(FactoryExtensionPoint modelFactories, ModelResolverExtensionPoint modelResolvers,
URLArtifactProcessor<Object> artifactProcessor, StAXArtifactProcessor<Object> extensionProcessor, Monitor monitor) {
this.modelFactories = modelFactories;
this.modelResolvers = modelResolvers;
hackResolvers(modelResolvers);
this.artifactProcessor = artifactProcessor;
this.extensionProcessor = extensionProcessor;
this.contributionFactory = modelFactories.getFactory(ContributionFactory.class);
this.monitor = monitor;
}
*/
public String getArtifactType() {
return ".contribution/content";
}
public Class<Contribution> getModelType() {
return Contribution.class;
}
public Contribution read(URL parentURL, URI contributionURI, URL contributionURL) throws ContributionReadException {
// Create contribution model
Contribution contribution = contributionFactory.createContribution();
contribution.setURI(contributionURI.toString());
contribution.setLocation(contributionURL.toString());
ModelResolver modelResolver = new ExtensibleModelResolver(contribution, modelResolvers, modelFactories);
contribution.setModelResolver(modelResolver);
contribution.setUnresolved(true);
// Create a contribution scanner
ContributionScanner scanner = scanners.getContributionScanner(contributionURL.getProtocol());
if (scanner == null) {
if ("file".equals(contributionURL.getProtocol()) && new File(contributionURL.getFile()).isDirectory()) {
scanner = new DirectoryContributionScanner();
} else {
scanner = new JarContributionScanner();
}
}
// Scan the contribution and list the artifacts contained in it
List<Artifact> artifacts = contribution.getArtifacts();
boolean contributionMetadata = false;
List<String> artifactURIs = scanner.getArtifacts(contributionURL);
for (String artifactURI: artifactURIs) {
URL artifactURL = scanner.getArtifactURL(contributionURL, artifactURI);
// Add the deployed artifact model to the contribution
Artifact artifact = this.contributionFactory.createArtifact();
artifact.setURI(artifactURI);
artifact.setLocation(artifactURL.toString());
artifacts.add(artifact);
modelResolver.addModel(artifact);
// Read each artifact
Object model = artifactProcessor.read(contributionURL, URI.create(artifactURI), artifactURL);
if (model != null) {
artifact.setModel(model);
// Add the loaded model to the model resolver
modelResolver.addModel(model);
// Merge contribution metadata into the contribution model
if (model instanceof ContributionMetadata) {
contributionMetadata = true;
ContributionMetadata c = (ContributionMetadata)model;
contribution.getImports().addAll(c.getImports());
contribution.getExports().addAll(c.getExports());
contribution.getDeployables().addAll(c.getDeployables());
}
}
}
// If no sca-contribution.xml file was provided then just consider
// all composites in the contribution as deployables
if (!contributionMetadata) {
for (Artifact artifact: artifacts) {
if (artifact.getModel() instanceof Composite) {
contribution.getDeployables().add((Composite)artifact.getModel());
}
}
// Add default contribution import and export
DefaultImport defaultImport = contributionFactory.createDefaultImport();
defaultImport.setModelResolver(new DefaultModelResolver());
contribution.getImports().add(defaultImport);
DefaultExport defaultExport = contributionFactory.createDefaultExport();
contribution.getExports().add(defaultExport);
}
return contribution;
}
public void resolve(Contribution contribution, ModelResolver resolver) throws ContributionResolveException {
// Resolve the contribution model itself
ModelResolver contributionResolver = contribution.getModelResolver();
contribution.setUnresolved(false);
contributionResolver.addModel(contribution);
// Resolve imports and exports
for (Export export: contribution.getExports()) {
if (export instanceof DefaultExport) {
// Initialize the default export's resolver
export.setModelResolver(contributionResolver);
} else {
extensionProcessor.resolve(export, contributionResolver);
}
}
for (Import import_: contribution.getImports()) {
extensionProcessor.resolve(import_, contributionResolver);
}
// Resolve all artifact models
for (Artifact artifact : contribution.getArtifacts()) {
Object model = artifact.getModel();
if (model != null) {
try {
artifactProcessor.resolve(model, contributionResolver);
} catch (Exception e) {
//FIXME this shouldn't happen
}
}
}
// Resolve deployable composites
List<Composite> deployables = contribution.getDeployables();
for (int i = 0, n = deployables.size(); i < n; i++) {
Composite deployable = deployables.get(i);
Composite resolved = (Composite)contributionResolver.resolveModel(Composite.class, deployable);
if (resolved != deployable) {
deployables.set(i, resolved);
}
}
}
}
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