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Diffstat (limited to '')
-rw-r--r-- | sca-java-1.x/tags/1.6.1-RC1/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-RC1/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java b/sca-java-1.x/tags/1.6.1-RC1/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java new file mode 100644 index 0000000000..a052e43356 --- /dev/null +++ b/sca-java-1.x/tags/1.6.1-RC1/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java @@ -0,0 +1,122 @@ +/* + * 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.service.impl; + +import java.io.File; +import java.io.IOException; +import java.net.URL; +import java.net.URLConnection; +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.util.HashMap; +import java.util.Map; + +import org.apache.tuscany.sca.contribution.PackageType; +import org.apache.tuscany.sca.contribution.service.TypeDescriber; +import org.apache.tuscany.sca.contribution.service.util.FileHelper; + +/** + * Implementation of the content describer for contribution packages + * + * @version $Rev$ $Date$ + */ +public class PackageTypeDescriberImpl implements TypeDescriber { + private final Map<String, String> contentTypeRegistry = new HashMap<String, String>(); + + public PackageTypeDescriberImpl() { + super(); + init(); + } + + /** + * Initialize contentType registry with know types based on known file extensions + */ + private void init() { + contentTypeRegistry.put("EAR", PackageType.EAR); + contentTypeRegistry.put("JAR", PackageType.JAR); + contentTypeRegistry.put("WAR", PackageType.WAR); + contentTypeRegistry.put("ZIP", PackageType.ZIP); + } + + protected String resolveContentyTypeByExtension(URL resourceURL) { + String artifactExtension = FileHelper.getExtension(resourceURL.getPath()); + if (artifactExtension == null) { + return null; + } + return contentTypeRegistry.get(artifactExtension.toUpperCase()); + } + + /** + * Build contentType for a specific resource. We first check if the file is a supported one + * (looking into our registry based on resource extension) If not found, we try to check file + * contentType Or we return defaultContentType provided + * + * @param resourceURL The artifact URL + * @param defaultContentType The default content type if we can't find the correct one + * @return The content type + */ + public String getType(URL resourceURL, String defaultContentType) { + URLConnection connection = null; + String contentType = defaultContentType; + final String urlProtocol = resourceURL.getProtocol(); + + if (urlProtocol.equals("file")) { + final File fileOrDir = FileHelper.toFile(resourceURL); + // Allow privileged access to test file. Requires FilePermissions in security policy. + Boolean isDirectory = AccessController.doPrivileged(new PrivilegedAction<Boolean>() { + public Boolean run() { + return fileOrDir.isDirectory(); + } + }); + if (isDirectory) { + // Special case : contribution is a folder + contentType = PackageType.FOLDER; + } + + String type = resolveContentyTypeByExtension(resourceURL); + if (type != null) { + return type; + } + } else if (urlProtocol.equals("bundle") || urlProtocol.equals("bundleresource")) { + contentType = PackageType.BUNDLE; + } else { + contentType = resolveContentyTypeByExtension(resourceURL); + if (contentType == null) { + try { + connection = resourceURL.openConnection(); + connection.setUseCaches(false); + contentType = connection.getContentType(); + + if (contentType == null || contentType.equals("content/unknown")) { + // here we couldn't figure out from our registry or from URL and it's not a + // special file + // return defaultContentType if provided + contentType = defaultContentType; + } + } catch (IOException io) { + // could not access artifact, just ignore and we will return + // null contentType + } + } + } + return contentType == null ? defaultContentType : contentType; + } + +} |