/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* 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.walkaround.wave.server.rpc;
import com.google.inject.Inject;
import com.google.walkaround.proto.gson.ConnectResponseGsonImpl;
import com.google.walkaround.slob.server.AccessDeniedException;
import com.google.walkaround.slob.server.GsonProto;
import com.google.walkaround.slob.server.SlobStoreSelector;
import com.google.walkaround.slob.server.SlobNotFoundException;
import com.google.walkaround.slob.server.SlobStore.ConnectResult;
import com.google.walkaround.util.server.servlet.AbstractHandler;
import com.google.walkaround.util.server.servlet.BadRequestException;
import com.google.walkaround.wave.server.ObjectSession;
import com.google.walkaround.wave.server.ObjectSessionHelper;
import com.google.walkaround.wave.server.servlet.ServletUtil;
import java.io.IOException;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Gets current wavelet version and creates a new session. Used for
* reconnection.
*
* @author ohler@google.com (Christian Ohler)
*/
public class ConnectHandler extends AbstractHandler {
@SuppressWarnings("unused")
private static final Logger log = Logger.getLogger(ConnectHandler.class.getName());
@Inject SlobStoreSelector storeSelector;
@Inject ObjectSession session;
@Inject ObjectSessionHelper sessionHelper;
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
log.info("connect " + session);
ConnectResult result;
try {
result = storeSelector.get(session.getStoreType()).getSlobStore()
.reconnect(session.getObjectId(), session.getClientId());
} catch (SlobNotFoundException e) {
throw new BadRequestException("Object not found or access denied", e);
} catch (AccessDeniedException e) {
throw new BadRequestException("Object not found or access denied", e);
}
log.info("connect " + session + ": " + result);
ConnectResponseGsonImpl response = sessionHelper.createConnectResponse(session, result);
resp.setContentType("application/json");
ServletUtil.writeJsonResult(resp.getWriter(),
GsonProto.toJson(response));
}
}