com.cedarsoftware.util

Class UrlInvocationHandler

java.lang.Object

com.cedarsoftware.util.UrlInvocationHandler

All Implemented Interfaces:

InvocationHandler

Deprecated.

@Deprecated
public class UrlInvocationHandler
extends Object
implements InvocationHandler

Useful utility for allowing Java code to make Ajax calls, yet the Java code can make these calls via Dynamic Proxies created from Java interfaces for the remote server(s). Example: Assume you have a tomcat instance running a JSON Command Servlet, like com.cedarsoftware's or Spring MVC. Assume you have a Java interface 'Explorer' that is mapped to a Java bean that you are allowing to be called through RESTful JSON calls (Ajax / XHR). Explorer has methods on it, like getFiles(userId), etc. You need to use a SessionAware (JSESSIONID only) or CookieAware UrlInvocationHandler to interact with the server so that the cookies will be placed on all requests. In Javascript within browsers, this is taken care of for you. Not so in the Java side.

 Map cookies = new HashMap();
 String url = "http://www.mycompany.com:80/json/"

 InvocationHandler handler = new UrlInvocationHandler(new UrlInvocationHandlerStrategyImplementation(url, ...));
 Explorer explorer = (Explorer) ProxyFactory.create(Explorer.class, handler);

 At this point, your Java code can do this:

 List files = explorer.getFiles(userId);
 

Author:

Ken Partlow ([email protected]), John DeRegnaucourt ([email protected])
Copyright (c) Cedar Software LLC

Licensed 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.

Field Summary

Fields

Modifier and Type	Field and Description
static int	SLEEP_TIME Deprecated.

Constructor Summary

Constructors

Constructor and Description
UrlInvocationHandler(UrlInvocationHandlerStrategy strategy) Deprecated.

Method Summary

Modifier and Type	Method and Description
protected static void	checkForThrowable(Object object) Deprecated.
Object	invoke(Object proxy, Method m, Object[] args) Deprecated.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SLEEP_TIME

public static final int SLEEP_TIME

Deprecated.

See Also:

Constant Field Values

Constructor Detail

UrlInvocationHandler

public UrlInvocationHandler(UrlInvocationHandlerStrategy strategy)

Deprecated.

Method Detail

invoke

public Object invoke(Object proxy,
                     Method m,
                     Object[] args)
              throws Throwable

Deprecated.

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

checkForThrowable

protected static void checkForThrowable(Object object)
                                 throws Throwable

Deprecated.

Throws:

Throwable