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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.impl;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.sca.contribution.PackageType;
import org.apache.tuscany.sca.contribution.processor.PackageProcessor;
import org.apache.tuscany.sca.contribution.service.ContributionException;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
/**
* Folder contribution package processor.
*
* @version $Rev$ $Date$
*/
public class FolderContributionProcessor implements PackageProcessor {
public FolderContributionProcessor() {
}
public String getPackageType() {
return PackageType.FOLDER;
}
/**
* Recursively traverse a root directory
*
* @param fileList
* @param file
* @param root
* @throws IOException
*/
private static void traverse(List<URI> fileList, final File file, final File root) throws IOException {
// Allow privileged access to test file. Requires FilePermissions in security policy file.
Boolean isFile = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return file.isFile();
}
});
if (isFile) {
fileList.add(AccessController.doPrivileged(new PrivilegedAction<URI>() {
public URI run() {
return root.toURI().relativize(file.toURI());
}
}));
} else {
// Allow privileged access to test file. Requires FilePermissions in security policy
// file.
Boolean isDirectory = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return file.isDirectory();
}
});
if (isDirectory) {
String uri = AccessController.doPrivileged(new PrivilegedAction<URI>() {
public URI run() {
return root.toURI().relativize(file.toURI());
}
}).toString();
if (uri.endsWith("/")) {
uri = uri.substring(0, uri.length() - 1);
}
try {
fileList.add(new URI(null, uri, null));
} catch (URISyntaxException e) {
throw new IllegalArgumentException("Invalid artifact uri:" + uri);
}
// Allow privileged access to list files. Requires FilePermission in security
// policy.
File[] files = AccessController.doPrivileged(new PrivilegedAction<File[]>() {
public File[] run() {
return file.listFiles();
}
});
for (File f : files) {
if (!f.getName().startsWith(".")) {
traverse(fileList, f, root);
}
}
}
}
}
public URL getArtifactURL(URL sourceURL, URI artifact) throws MalformedURLException {
return new URL(sourceURL, artifact.toString());
}
public List<URI> getArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException,
IOException {
if (packageSourceURL == null) {
throw new IllegalArgumentException("Invalid null package source URL.");
}
List<URI> artifacts = new ArrayList<URI>();
try {
// Assume the root is a jar file
final File rootFolder = new File(packageSourceURL.toURI());
// Allow privileged access to test file. Requires FilePermissions in security policy
// file.
Boolean isDirectory = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return rootFolder.isDirectory();
}
});
if (isDirectory) {
// Allow privileged access to test file. Requires FilePermissions in security policy
// file.
Boolean folderExists = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
return rootFolder.exists();
}
});
if (!folderExists) {
throw new ContributionReadException(rootFolder.getAbsolutePath());
}
// Security consideration. This method gathers URIs of enclosed
// artifacts. The URIs are protected by the policy when a user
// yries to open those URLs.
traverse(artifacts, rootFolder, rootFolder);
}
} catch (URISyntaxException e) {
throw new ContributionReadException(packageSourceURL.toExternalForm(), e);
}
return artifacts;
}
}
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