/*
* Copyright (C) 2008 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.greaze.webservice.server;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import com.google.greaze.definition.WebServiceSystemException;
import com.google.greaze.definition.webservice.RequestBodyGsonTypeAdapterFactory;
import com.google.greaze.definition.webservice.RequestSpec;
import com.google.greaze.definition.webservice.WebServiceRequest;
import com.google.greaze.server.internal.utils.UrlParamsExtractor;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonParseException;
/**
* Receives and parses a request at the server side on a {@link HttpServletRequest}.
*
* @author Inderjeet Singh
*/
public class RequestReceiver {
protected final Gson gson;
protected final RequestSpec spec;
protected final UrlParamsExtractor urlParamsExtractor;
public RequestReceiver(GsonBuilder gsonBuilder, RequestSpec spec) {
this.gson = gsonBuilder
.registerTypeAdapterFactory(new RequestBodyGsonTypeAdapterFactory(spec.getBodySpec()))
.create();
this.spec = spec;
this.urlParamsExtractor = new UrlParamsExtractor(spec.getUrlParamsSpec(), gson);
}
public WebServiceRequest receive(HttpServletRequest request) {
try {
RequestData requestData = RequestData.create(request, spec, gson);
return requestData.get();
} catch (IOException e) {
throw new WebServiceSystemException(e);
} catch (JsonParseException e) {
// Not a Web service request
throw new WebServiceSystemException(e);
}
}
}