/*
* Copyright (C) 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.greaze.rest.server;
import com.google.greaze.definition.HttpMethod;
import com.google.greaze.definition.rest.ResourceId;
import com.google.greaze.definition.rest.RestRequestBase;
import com.google.greaze.definition.rest.RestResourceBase;
import com.google.greaze.definition.rest.RestResponseBase;
import com.google.greaze.definition.rest.WebContext;
public class RestResponseBaseBuilder<I extends ResourceId, R extends RestResourceBase<I, R>> {
protected final RepositoryBase<I, R> resources;
public RestResponseBaseBuilder(RepositoryBase<I, R> resources) {
this.resources = resources;
}
public void buildResponse(WebContext context, RestRequestBase<I, R> request,
RestResponseBase.Builder<I, R> responseBuilder) {
HttpMethod method = request.getMethod();
R responseBody = null;
switch (method) {
case GET:
responseBody = get(request.getId(), context);
break;
case POST:
responseBody = post(request.getResource(), context);
break;
case DELETE:
delete(request.getId(), context);
break;
case PUT:
responseBody = put(request.getResource(), context);
break;
default:
throw new IllegalStateException("Unexpected method: " + method);
}
responseBuilder.setBody(responseBody);
}
public R get(I resourceId, WebContext context) {
return resources.get(resourceId);
}
public R post(R resource, WebContext context) {
return resources.put(resource);
}
public void delete(I resourceId, WebContext context) {
resources.delete(resourceId);
}
public R put(R resource, WebContext context) {
return resources.put(resource);
}
}