/*
* 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.client.rpc;
import com.google.walkaround.proto.ConnectResponse;
import com.google.walkaround.proto.jso.ConnectResponseJsoImpl;
import com.google.walkaround.slob.shared.MessageException;
import com.google.walkaround.util.client.log.Logs;
import com.google.walkaround.util.client.log.Logs.Level;
import com.google.walkaround.util.client.log.Logs.Log;
import com.google.walkaround.wave.client.rpc.WaveletMap.WaveletEntry;
import com.google.walkaround.wave.shared.SharedConstants.Params;
import com.google.walkaround.wave.shared.SharedConstants.Services;
import org.waveprotocol.wave.model.util.CollectionUtils;
/**
* Service that checks current version of wave.
*
* @author danilatos@google.com (Daniel Danilatos)
*/
// TODO(ohler): rename to something like WaveletConnectService
public class LoadWaveService {
private static final Log log = Logs.create("loadwave");
public interface LoadWaveCallback {
void onData(WaveletEntry data);
void onConnectionError(Throwable e);
}
public interface ConnectCallback {
void onData(ConnectResponse data);
void onConnectionError(Throwable e);
}
private final Rpc rpc;
public LoadWaveService(Rpc rpc) {
this.rpc = rpc;
}
// TODO(ohler): rename to connect?
public void fetchWaveRevision(String signedSessionString,
final ConnectCallback callback) {
rpc.makeRequest(Rpc.Method.GET, Services.CONNECT,
CollectionUtils.newStringMap(Params.SESSION, signedSessionString),
new Rpc.RpcCallback() {
@Override
public void onSuccess(String data) throws MessageException {
log.log(Level.DEBUG, data);
ConnectResponseJsoImpl connectResponse = RpcUtil.evalPrefixed(data).cast();
callback.onData(connectResponse);
}
@Override
public void onFatalError(Throwable e) {
throw new RuntimeException(e);
}
@Override
public void onConnectionError(Throwable e) {
callback.onConnectionError(e);
}
});
}
}