| /* |
| * Copyright 2010 Google Inc. |
| * |
| * 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. |
| */ |
| package com.google.gwt.requestfactory.client.impl; |
| |
| import com.google.gwt.core.client.JavaScriptObject; |
| |
| import java.util.Map; |
| |
| /** |
| * <p> |
| * <span style="color:red">Experimental API: This class is still under rapid |
| * development, and is very likely to be deleted. Use it at your own risk. |
| * </span> |
| * </p> |
| * A convenience class to convert a Map<String, String> to a JSON string on the |
| * client side. |
| */ |
| public class ClientRequestHelper { |
| |
| private static class MyJSO extends JavaScriptObject { |
| static native MyJSO create() /*-{ |
| return {}; |
| }-*/; |
| |
| @SuppressWarnings("unused") |
| protected MyJSO() { |
| } |
| |
| private native void put(String key, String value)/*-{ |
| // TODO(jgw): Find a better way to do this. Occasionally a js-wrapped |
| // string ends up in 'value', which breaks the json2.js implementation |
| // of JSON.stringify(). |
| this[key] = String(value); |
| }-*/; |
| |
| private native String toJsonString()/*-{ |
| var gwt = this.__gwt_ObjectId; |
| delete this.__gwt_ObjectId; |
| var rtn = $wnd.JSON.stringify(this); |
| this.__gwt_ObjectId = gwt; |
| return rtn; |
| }-*/; |
| } |
| |
| public static String getRequestString(Map<String, String> requestData) { |
| MyJSO requestObject = MyJSO.create(); |
| for (String key : requestData.keySet()) { |
| requestObject.put(key, requestData.get(key)); |
| } |
| return requestObject.toJsonString(); |
| } |
| } |