HTTPCLIENT-1191: PATCH HTTP method

Contributed by Alin Vasile <alinachegalati at yahoo dot com>

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1339134 13f79535-47bb-0310-9956-ffa450edef68

httpclient/src/main/java/org/apache/http/client/methods/HttpPatch.java

@@ -0,0 +1,75 @@
+/*
+ * ====================================================================
+ * 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package org.apache.http.client.methods;
+
+import java.net.URI;
+
+import org.apache.http.annotation.NotThreadSafe;
+
+/**
+ * HTTP PATCH method.
+ * <p>
+ * The HTTP PATCH method is defined in <a
+ * href="http://tools.ietf.org/html/rfc5789">RF5789</a>: <blockquote> The PATCH
+ * method requests that a set of changes described in the request entity be
+ * applied to the resource identified by the Request- URI. Differs from the PUT
+ * method in the way the server processes the enclosed entity to modify the
+ * resource identified by the Request-URI. In a PUT request, the enclosed entity
+ * origin server, and the client is requesting that the stored version be
+ * replaced. With PATCH, however, the enclosed entity contains a set of
+ * instructions describing how a resource currently residing on the origin
+ * server should be modified to produce a new version. </blockquote>
+ * </p>
+ *
+ * @since 4.2
+ */
+@NotThreadSafe
+public class HttpPatch extends HttpEntityEnclosingRequestBase {
+
+    public final static String METHOD_NAME = "PATCH";
+
+    public HttpPatch() {
+        super();
+    }
+
+    public HttpPatch(final URI uri) {
+        super();
+        setURI(uri);
+    }
+
+    public HttpPatch(final String uri) {
+        super();
+        setURI(URI.create(uri));
+    }
+
+    @Override
+    public String getMethod() {
+        return METHOD_NAME;
+    }
+
+}