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Diffstat (limited to 'branches/sca-android-r643746/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java')
-rw-r--r-- | branches/sca-android-r643746/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java b/branches/sca-android-r643746/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java new file mode 100644 index 0000000000..956251b2f6 --- /dev/null +++ b/branches/sca-android-r643746/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/PackageTypeDescriberImpl.java @@ -0,0 +1,119 @@ +/*
+ * 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: 641645 $ $Date: 2008-03-26 15:37:28 -0800 (Wed, 26 Mar 2008) $
+ */
+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("JAR", PackageType.JAR);
+ contentTypeRegistry.put("WAR", PackageType.JAR);
+ }
+
+ 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 fileName = resourceURL.toString();
+ String fileExt = fileName.substring(fileName.lastIndexOf('.')+1, fileName.length());
+ if ( fileExt.equalsIgnoreCase( "JAR" ) )
+ return PackageType.JAR;
+ } 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;
+ }
+
+}
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