/*******************************************************************************
* Copyright 2010 Universidade do Minho, Ricardo Vila�a and Francisco Cruz
*
* 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 org.ublog.benchmark.social.mysql;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.ublog.benchmark.BenchOperation;
import org.ublog.benchmark.ComplexBenchMarkClient;
import org.ublog.benchmark.operations.CollectionOperation;
import org.ublog.benchmark.operations.DataStoreOperation;
import org.ublog.benchmark.operations.GetOperation;
import org.ublog.benchmark.operations.GetRangeOperation;
import org.ublog.benchmark.operations.OperationListener;
import org.ublog.benchmark.social.Message;
import org.ublog.benchmark.social.SocialBenchmark;
import org.ublog.benchmark.social.UserService;
import org.ublog.benchmark.social.Utils;
public class GetTweetsOperation implements BenchOperation, OperationListener{
private ComplexBenchMarkClient client;
private String userId;
private Map<String, String> user;
private List<Message> tweetList;
private int start,count;
private boolean finished;
public GetTweetsOperation(ComplexBenchMarkClient client,String userId, int start, int count)
{
this.client=client;
this.userId=userId;
this.start=start;
this.count=count;
this.finished=false;
this.user=null;
this.tweetList=new ArrayList<Message>();
}
@Override
public String getName() {
return "twitter:getTweets";
}
public List<Message> getResult()
{
return this.tweetList;
}
@SuppressWarnings("unchecked")
@Override
public CollectionOperation getNextDBOperation() throws UnsupportedEncodingException {
CollectionOperation res;
if (this.user==null)
{
List<String> columns = new ArrayList<String>();
columns.add("lastTweet");
res=new GetOperation(client,SocialBenchmark.userTable,userId,columns);
}
else
{
int lastTweet = Integer.valueOf(this.user.get(UserService.LAST_TWEET));
String min=userId + "-" + Utils.getTweetPadding(Math.max(1,lastTweet - this.start-this.count+1));
String max=userId + "-" + Utils.getTweetPadding(Math.max(1,lastTweet - this.start));
res=new GetRangeOperation(client,SocialBenchmark.tweetsTable,min,max);
finished=true;
}
res.addListener(this);
return res;
}
@Override
public boolean hasMoreDBOperations() {
return !finished;
}
@SuppressWarnings("unchecked")
@Override
public void handleFinishedOperation(DataStoreOperation op) {
if (this.user==null)
{
this.user=((Map<String, String>) ((GetOperation) op).getResult());
}
else
{
for(Map<String,String> tweetMap:((Set<Map<String, String>>) ((GetRangeOperation) op).getResult())){
tweetList.add(Utils.toTweet(tweetMap));
}
this.client.handleFinishedComplexOperation(this);
}
}
@Override
public String toString() {
return "GetTweetsOperation [count=" + count + ", start=" + start
+ ", userId=" + userId + "]";
}
@Override
public boolean isReadOnly() {
return true;
}
@Override
public boolean isInit() {
return false;
}
@Override
public void setInit(boolean init) {
}
}