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Posted to commits@ofbiz.apache.org by ap...@apache.org on 2008/06/26 03:50:39 UTC

svn commit: r671706 - in /ofbiz/trunk/framework: example/webapp/example/WEB-INF/controller.xml webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java

Author: apatel
Date: Wed Jun 25 18:50:39 2008
New Revision: 671706

URL: http://svn.apache.org/viewvc?rev=671706&view=rev
Log:
JSON handler for simple method events. 

Added:
    ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java   (with props)
    ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java   (with props)
Modified:
    ofbiz/trunk/framework/example/webapp/example/WEB-INF/controller.xml

Modified: ofbiz/trunk/framework/example/webapp/example/WEB-INF/controller.xml
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/example/webapp/example/WEB-INF/controller.xml?rev=671706&r1=671705&r2=671706&view=diff
==============================================================================
--- ofbiz/trunk/framework/example/webapp/example/WEB-INF/controller.xml (original)
+++ ofbiz/trunk/framework/example/webapp/example/WEB-INF/controller.xml Wed Jun 25 18:50:39 2008
@@ -30,6 +30,7 @@
 
     <handler name="groovy" type="request" class="org.ofbiz.webapp.event.GroovyEventHandler"/>
     <handler name="jsonservice" type="request" class="org.ofbiz.webapp.event.JSONServiceEventHandler"/>
+    <handler name="jsonsimple" type="request" class="org.ofbiz.webapp.event.JSONSimpleEventHandler"/>
 
     <!--
       These can be used to return the reports as views; make sure the classes are compiled and available

Added: ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java?rev=671706&view=auto
==============================================================================
--- ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java (added)
+++ ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/AbstractJSONEventHandler.java Wed Jun 25 18:50:39 2008
@@ -0,0 +1,99 @@
+/*******************************************************************************
+ * 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.ofbiz.webapp.event;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Map;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import javolution.util.FastMap;
+import net.sf.json.JSONObject;
+
+import org.ofbiz.base.util.Debug;
+
+public abstract class AbstractJSONEventHandler  implements EventHandler{
+
+    public static final String module = JSONSimpleEventHandler.class.getName();
+    protected EventHandler service;
+
+
+    public abstract void init(ServletContext context) throws EventHandlerException;
+
+    public String invoke(String eventPath, String eventMethod, HttpServletRequest request, HttpServletResponse response) throws EventHandlerException {
+                // call into the java handler for parameters parsing and invocation
+        String respCode = service.invoke(eventPath, eventMethod, request, response);
+        // pull out the service response from the request attribute
+        Map attrMap = getAttributesAsMap(request);
+            
+        // create a JSON Object for return
+        JSONObject json = JSONObject.fromMap(attrMap);
+        String jsonStr = json.toString();
+        if (jsonStr == null) {
+            throw new EventHandlerException("JSON Object was empty; fatal error!");
+        }
+            
+        // set the X-JSON content type
+        response.setContentType("application/x-json");
+        // jsonStr.length is not reliable for unicode characters 
+        try {
+            response.setContentLength(jsonStr.getBytes("UTF8").length);
+        } catch (UnsupportedEncodingException e) {
+            throw new EventHandlerException("Problems with Json encoding", e);
+        }
+           
+        // return the JSON String
+        Writer out;
+        try {
+            out = response.getWriter();
+            out.write(jsonStr);
+            out.flush();
+        } catch (IOException e) {
+            throw new EventHandlerException("Unable to get response writer", e);
+        }
+        return respCode;
+    }
+
+    private Map getAttributesAsMap(HttpServletRequest request) {
+        Map attrMap = FastMap.newInstance();
+        Enumeration en = request.getAttributeNames();
+        while (en.hasMoreElements()) {
+            String name = (String) en.nextElement();
+            Object val = request.getAttribute(name);
+            if (val instanceof java.sql.Timestamp) {
+                val = val.toString();
+            }
+            if (val instanceof String || val instanceof Number || val instanceof Map || val instanceof List) {
+                if (Debug.verboseOn()) Debug.logVerbose("Adding attribute to JSON output: " + name, module);
+                attrMap.put(name, val);
+            }
+        }
+    
+        return attrMap;
+    }
+
+}
\ No newline at end of file

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Added: ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java?rev=671706&view=auto
==============================================================================
--- ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java (added)
+++ ofbiz/trunk/framework/webapp/src/org/ofbiz/webapp/event/JSONSimpleEventHandler.java Wed Jun 25 18:50:39 2008
@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * 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.ofbiz.webapp.event;
+
+import javax.servlet.ServletContext;
+
+
+public class JSONSimpleEventHandler extends AbstractJSONEventHandler{
+
+    public void init(ServletContext context) throws EventHandlerException {
+        this.service = new SimpleEventHandler();
+        this.service.init(context);
+    }
+
+}

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