/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.integration.twitter.inbound;
import java.util.Collections;
import java.util.List;
import org.springframework.social.twitter.api.SearchParameters;
import org.springframework.social.twitter.api.SearchResults;
import org.springframework.social.twitter.api.Tweet;
import org.springframework.social.twitter.api.Twitter;
import org.springframework.util.Assert;
/**
* @author Oleg Zhurakousky
* @author Mark Fisher
* @author Gunnar Hillert
* @author Gary Russell
* @since 2.0
*/
public class SearchReceivingMessageSource extends AbstractTwitterMessageSource<Tweet> {
private volatile String query;
public SearchReceivingMessageSource(Twitter twitter, String metadataKey) {
super(twitter, metadataKey);
}
public void setQuery(String query) {
Assert.hasText(query, "'query' must not be null");
this.query = query;
}
@Override
public String getComponentType() {
return "twitter:search-inbound-channel-adapter";
}
@Override
protected List<Tweet> pollForTweets(long sinceId) {
SearchParameters searchParameters = new SearchParameters(this.query).count(this.getPageSize()).sinceId(sinceId);
SearchResults results = this.getTwitter().searchOperations().search(searchParameters);
return (results != null) ? results.getTweets() : Collections.<Tweet>emptyList();
}
}