Providing utility module to share common HTTP Utilities and Constants

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@912092 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 56 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPContentTypeMapper.java b/sca-java-2.x/trunk/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPContentTypeMapper.java
new file mode 100644
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+++ b/sca-java-2.x/trunk/modules/common-http/src/main/java/org/apache/tuscany/sca/common/http/HTTPContentTypeMapper.java
@@ -0,0 +1,56 @@
+/*
+ * 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.common.http;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Utility class to provide default HTTP Content-Type header
+ * based on resource type 
+ */
+public class HTTPContentTypeMapper {
+    private static Map<String, String> contentTypeTable = new HashMap<String, String>();
+
+    static {
+        contentTypeTable.put("htm", HTTPConstants.HTML_CONTENT_TYPE);
+        contentTypeTable.put("html", HTTPConstants.HTML_CONTENT_TYPE);
+        contentTypeTable.put("js", "text/javascript");
+    }
+    
+    /**
+     * Provided a resource path, identify default content-type based on the resource extension
+     * @param resourcePath
+     * @return
+     */
+    public static String getContentType(String resourcePath) {
+        return contentTypeTable.get(getResourceType(resourcePath));
+    }
+    
+    /**
+     * Utility function to calculate file type based on its extension
+     * Useful to map HTTP content-type based on file extension
+     * @param resource the resource/file name
+     * @return the resource type/extension
+     */
+    private static String getResourceType(String resource) {
+        return resource.substring(resource.lastIndexOf(".") + 1);
+    }
+}