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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.processor;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.List;
import org.apache.tuscany.sca.assembly.builder.impl.ProblemImpl;
import org.apache.tuscany.sca.contribution.service.ContributionException;
import org.apache.tuscany.sca.contribution.service.TypeDescriber;
import org.apache.tuscany.sca.contribution.service.UnsupportedPackageTypeException;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
* Implementation of an extensible package processor.
*
* Takes a package processor extension point and delegates to the proper package
* processor from the extension point based on the package's content type.
*
* @version $Rev$ $Date$
*/
public class ExtensiblePackageProcessor implements PackageProcessor {
private PackageProcessorExtensionPoint processors;
private TypeDescriber packageTypeDescriber;
private Monitor monitor;
public ExtensiblePackageProcessor(PackageProcessorExtensionPoint processors,
TypeDescriber packageTypeDescriber,
Monitor monitor) {
this.processors = processors;
this.packageTypeDescriber = packageTypeDescriber;
this.monitor = monitor;
}
/**
* Marshals errors into the monitor
*
* @param problems
* @param message
* @param model
*/
protected void error(String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem = new ProblemImpl(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
public List<URI> getArtifacts(URL packageSourceURL, InputStream inputStream)
throws ContributionException, IOException {
String packageType = this.packageTypeDescriber.getType(packageSourceURL, null);
if (packageType == null) {
error("UnsupportedPackageTypeException", packageTypeDescriber, packageSourceURL.toString());
throw new UnsupportedPackageTypeException("Unsupported contribution package type: " + packageSourceURL.toString());
}
PackageProcessor packageProcessor = this.processors.getPackageProcessor(packageType);
if (packageProcessor == null) {
error("UnsupportedPackageTypeException", packageTypeDescriber, packageType);
throw new UnsupportedPackageTypeException("Unsupported contribution package type: " + packageType);
}
return packageProcessor.getArtifacts(packageSourceURL, inputStream);
}
public URL getArtifactURL(URL packageSourceURL, URI artifact) throws MalformedURLException {
String contentType = this.packageTypeDescriber.getType(packageSourceURL, null);
PackageProcessor packageProcessor = this.processors.getPackageProcessor(contentType);
return packageProcessor.getArtifactURL(packageSourceURL, artifact);
}
public String getPackageType() {
return null;
}
}
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