/*
* RpcResponse.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.core.client.jsonrpc;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONValue;
public class RpcResponse extends JavaScriptObject
{
protected RpcResponse()
{
}
public final static RpcResponse parse(String json)
{
try
{
// we first call parseStrict so we can use the browser
// json parser (for performance) whenever possible)
JSONValue val = JSONParser.parseStrict(json);
return val.isObject().getJavaScriptObject().cast();
}
catch(Exception e)
{
try
{
// there are some cases where json emitted by our
// server isn't parsable by parseStrict (for example,
// see bug #3025). for these situations we call
// parseLenient (which in turn calls eval)
JSONValue val = JSONParser.parseLenient(json);
return val.isObject().getJavaScriptObject().cast();
}
catch(Exception e2)
{
return null;
}
}
}
public final native static RpcResponse create(RpcError error) /*-{
var response = new Object();
response.error = error ;
return response ;
}-*/;
public final RpcError getError()
{
return getField("error");
}
public final String getAsyncHandle()
{
return getField("asyncHandle");
}
public final <T> T getResult()
{
T field = this.<T>getField("result");
return field;
}
private static Boolean wrapBoolean(boolean value)
{
return value;
}
public final native <T> T getField(String name) /*-{
var value = this[name];
if (typeof(value) == 'boolean')
return @org.rstudio.core.client.jsonrpc.RpcResponse::wrapBoolean(Z)(value);
return value;
}-*/;
}