refs #302 - PATCH request

- added Patch request

Author: doctorrokter

javalite-common/src/main/java/org/javalite/http/Http.java

@@ -177,6 +177,46 @@ public static Delete delete(String url, int connectTimeout, int readTimeout) {
     }
 
 
+    /**
+     * Executes a PATCH request.
+     *
+     * @param uri     url of resource.
+     * @param content content to be posted.
+     * @return {@link Patch} object.
+     */
+    public static Patch patch(String uri, String content) {
+        return patch(uri, content.getBytes(), CONNECTION_TIMEOUT, READ_TIMEOUT);
+    }
+
+    /**
+     * Executes a PATCH request.
+     *
+     * @param uri     url of resource.
+     * @param content content to be posted.
+     * @return {@link Patch} object.
+     */
+    public static Patch patch(String uri, byte[] content) {
+        return patch(uri, content, CONNECTION_TIMEOUT, READ_TIMEOUT);
+    }
+
+    /**
+     * Executes a PATCH request.
+     *
+     * @param url            url of resource.
+     * @param content        content to be posted.
+     * @param connectTimeout connection timeout in milliseconds.
+     * @param readTimeout    read timeout in milliseconds.
+     * @return {@link Patch} object.
+     */
+    public static Patch patch(String url, byte[] content, int connectTimeout, int readTimeout) {
+
+        try {
+            return new Patch(url, content, connectTimeout, readTimeout);
+        } catch (Exception e) {
+            throw new HttpException("Failed URL: " + url, e);
+        }
+    }
+
 
     /**
      * Converts a map to URL- encoded content. This is a convenience method which can be used in combination

javalite-common/src/main/java/org/javalite/http/Patch.java

@@ -0,0 +1,43 @@
+package org.javalite.http;
+
+import java.io.OutputStream;
+
+/**
+ * Executes a PATCH request.
+ *
+ * @author Mikhail Chachkouski
+ */
+public class Patch  extends Request<Patch> {
+
+    private final byte[] content;
+
+    /**
+     * Constructor for making PATCH requests.
+     *
+     * @param uri URI of resource.
+     * @param content content to be posted to the resource.
+     * @param connectTimeout connection timeout.
+     * @param readTimeout read timeout.
+     */
+    public Patch(String uri, byte[] content, int connectTimeout, int readTimeout) {
+        super(uri, connectTimeout, readTimeout);
+        this.content = content;
+    }
+
+    @Override
+    public Patch doConnect() {
+        try {
+            this.connection.setDoInput(true);
+            this.connection.setDoOutput(true);
+            this.connection.setUseCaches(false);
+            this.connection.setRequestMethod("POST");
+            this.connection.setRequestProperty("X-HTTP-Method-Override", "PATCH");
+            OutputStream out = this.connection.getOutputStream();
+            out.write(this.content);
+            out.flush();
+            return this;
+        } catch (Exception e) {
+            throw new HttpException("Failed URL: " + url, e);
+        }
+    }
+}