/*
* 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
* 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.apache.streams.gplus.processor;
import org.apache.streams.core.StreamsDatum;
import org.apache.streams.core.StreamsProcessor;
import org.apache.streams.gplus.serializer.util.GooglePlusActivityUtil;
import org.apache.streams.pojo.json.Activity;
import com.google.api.services.plus.model.Comment;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* GooglePlusCommentProcessor collects comments about a google plus activity.
*/
public class GooglePlusCommentProcessor implements StreamsProcessor {
private static final String STREAMS_ID = "GooglePlusCommentProcessor";
private static final Logger LOGGER = LoggerFactory.getLogger(GooglePlusCommentProcessor.class);
private int count;
@Override
public String getId() {
return STREAMS_ID;
}
@Override
public List<StreamsDatum> process(StreamsDatum entry) {
StreamsDatum result = null;
try {
Object item = entry.getDocument();
LOGGER.debug("{} processing {}", STREAMS_ID, item.getClass());
//Get G+ activity ID from our own activity ID
if (item instanceof Activity) {
Activity activity = (Activity) item;
String activityId = getGPlusID(activity.getId());
//Call Google Plus API to get list of comments for this activity ID
/* TODO: FILL ME OUT WITH THE API CALL **/
List<Comment> comments = new ArrayList<>();
GooglePlusActivityUtil.updateActivity(comments, activity);
result = new StreamsDatum(activity);
}
} catch (Exception ex) {
ex.printStackTrace();
LOGGER.error("Exception while converting Comment to Activity: {}", ex.getMessage());
}
if ( result != null ) {
return Stream.of(result).collect(Collectors.toList());
} else {
return new ArrayList<>();
}
}
@Override
public void prepare(Object configurationObject) {
count = 0;
}
@Override
public void cleanUp() {
}
private String getGPlusID(String activityId) {
String[] activityParts = activityId.split(":");
return (activityParts.length > 0) ? activityParts[activityParts.length - 1] : "";
}
}