[Yanel-commits] rev 32469 - public/yanel/contributions/ajax-components/src/core/java/org/wyona/yanel/gwt/client

[michi at wyona.com]

Author: michi
Date: 2008-02-25 21:58:25 +0100 (Mon, 25 Feb 2008)
New Revision: 32469

Modified:
   public/yanel/contributions/ajax-components/src/core/java/org/wyona/yanel/gwt/client/AsynchronousAgent.java
Log:
formatting and some alerts added

Modified: public/yanel/contributions/ajax-components/src/core/java/org/wyona/yanel/gwt/client/AsynchronousAgent.java
===================================================================
--- public/yanel/contributions/ajax-components/src/core/java/org/wyona/yanel/gwt/client/AsynchronousAgent.java	2008-02-25 20:45:22 UTC (rev 32468)
+++ public/yanel/contributions/ajax-components/src/core/java/org/wyona/yanel/gwt/client/AsynchronousAgent.java	2008-02-25 20:58:25 UTC (rev 32469)
@@ -9,32 +9,41 @@
 import com.google.gwt.http.client.RequestBuilder;
 import com.google.gwt.http.client.RequestCallback;
 import com.google.gwt.http.client.RequestException;
+import com.google.gwt.user.client.Window;
 
 /**
  * Asynchronous agents are calling some URL in an asynchronous way. 
- * */
+ * See http://code.google.com/p/bunsenandbeaker/wiki/DevGuideHttpRequests
+ */
 public abstract class AsynchronousAgent implements RequestCallback{
-	private RequestBuilder requestBuilder = null;
+    private RequestBuilder requestBuilder = null;
+    private String url = null;
+    private Map/*<String, String>*/ parameters = new HashMap/*<String, String>*/();
 	
-	private String url = null;
-	private Map/*<String, String>*/ parameters = new HashMap/*<String, String>*/();
+    /**
+     * Default request using GET method and application/x-www-form-urlencoded content type within header
+     */
+    public AsynchronousAgent(String url){
+        this.url = url;
+        requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
+        initializeHeaders();
+    }
 	
-	public AsynchronousAgent(String url){
-		requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
-		initializeHeaders();
-	}
+    /**
+     *
+     */
+    public AsynchronousAgent(String url, RequestBuilder.Method method){
+        this.url = url;
+        requestBuilder = new RequestBuilder(method, url);
+        initializeHeaders();
+    }
 	
-	public AsynchronousAgent(String url, RequestBuilder.Method method){
-		requestBuilder = new RequestBuilder(method, url);
-		initializeHeaders();
-	}
-	
-	/**
-	 * If no request headers have been set, the header "Content-Type" will be used with a value of "text/plain; charset=utf-8"
-	 * */
-	protected void initializeHeaders(){
-		requestBuilder.setHeader("Content-Type", "application/x-www-form-urlencoded");
-	}
+    /**
+     * If no request headers have been set, the header "Content-Type" will be used with a value of "text/plain; charset=utf-8"
+     */
+    protected void initializeHeaders(){
+        requestBuilder.setHeader("Content-Type", "application/x-www-form-urlencoded");
+    }
 
 	/**
 	 * Sending the parameter depends on a content type and the receiving party
@@ -55,18 +64,26 @@
 		
 		return data;
 	}
+
+    /**
+     * Send request
+     */
+    public final Request execute() throws RequestException{
+        Window.alert("Send request: " + url);
+        return requestBuilder.sendRequest(buildRequestData(), this);
+    }
 	
-	public final Request execute() throws RequestException{
-		return requestBuilder.sendRequest(buildRequestData(), this);
-	}
-	
 	public void addParameter(String name, String value){
 		parameters.put(name, value);
 	} 
-	
-	public void onError(Request request, Throwable exception) {
-	    if(!GWT.isScript()){
-	        exception.printStackTrace();
-	    }
+
+    /**
+     *
+     */
+    public void onError(Request request, Throwable exception) {
+        Window.alert("Exception: " + exception.getMessage());
+        if(!GWT.isScript()){
+            exception.printStackTrace();
+        }
     }
 }