/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
*
* 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.apache.streams.twitter.processor;
import org.apache.streams.components.http.HttpProcessorConfiguration;
import org.apache.streams.components.http.processor.SimpleHTTPGetProcessor;
import org.apache.streams.core.StreamsDatum;
import org.apache.streams.core.StreamsProcessor;
import org.apache.streams.pojo.json.Activity;
import com.google.common.base.Preconditions;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Class gets a global share count from Twitter API for links on Activity datums.
*/
public class TwitterUrlApiProcessor extends SimpleHTTPGetProcessor implements StreamsProcessor {
private static final String STREAMS_ID = "TwitterUrlApiProcessor";
/**
* TwitterUrlApiProcessor constructor.
*/
public TwitterUrlApiProcessor() {
super();
this.configuration.setHostname("urls.api.twitter.com");
this.configuration.setResourcePath("/1/urls/count.json");
this.configuration.setEntity(HttpProcessorConfiguration.Entity.ACTIVITY);
this.configuration.setExtension("twitter_url_count");
}
/**
* TwitterUrlApiProcessor constructor.
*/
public TwitterUrlApiProcessor(HttpProcessorConfiguration processorConfiguration) {
super(processorConfiguration);
this.configuration.setHostname("urls.api.twitter.com");
this.configuration.setResourcePath("/1/urls/count.json");
this.configuration.setEntity(HttpProcessorConfiguration.Entity.ACTIVITY);
this.configuration.setExtension("twitter_url_count");
}
@Override
public String getId() {
return STREAMS_ID;
}
@Override
public List<StreamsDatum> process(StreamsDatum entry) {
Preconditions.checkArgument(entry.getDocument() instanceof Activity);
Activity activity = mapper.convertValue(entry.getDocument(), Activity.class);
if ( activity.getLinks() != null && activity.getLinks().size() > 0) {
return super.process(entry);
} else {
return Stream.of(entry).collect(Collectors.toList());
}
}
@Override
protected Map<String, String> prepareParams(StreamsDatum entry) {
Map<String, String> params = new HashMap<>();
params.put("url", mapper.convertValue(entry.getDocument(), Activity.class).getLinks().get(0));
return params;
}
}