/*
* 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.rss.processor;
import org.apache.streams.core.StreamsDatum;
import org.apache.streams.core.StreamsProcessor;
import org.apache.streams.pojo.json.Activity;
import org.apache.streams.rss.serializer.SyndEntryActivitySerializer;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.apache.commons.lang.NotImplementedException;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.LinkedList;
import java.util.List;
/**
* Converts ObjectNode representations of Rome SyndEntries to activities.
*/
public class RssTypeConverter implements StreamsProcessor {
public static final String STREAMS_ID = "RssTypeConverter";
private static final Logger LOGGER = LoggerFactory.getLogger(RssTypeConverter.class);
private SyndEntryActivitySerializer serializer;
private int successCount = 0;
private int failCount = 0;
@Override
public String getId() {
return STREAMS_ID;
}
@Override
public List<StreamsDatum> process(StreamsDatum datum) {
List<StreamsDatum> datums = new LinkedList<>();
if (datum.getDocument() instanceof ObjectNode) {
Activity activity = this.serializer.deserialize((ObjectNode) datum.getDocument());
datums.add(new StreamsDatum(activity, activity.getId(), DateTime.now().withZone(DateTimeZone.UTC)));
successCount ++;
} else {
failCount ++;
throw new NotImplementedException("Not implemented for class type : " + datum.getDocument().getClass().toString());
}
LOGGER.debug("Processor current success count: {} and current fail: {}", successCount, failCount);
return datums;
}
@Override
public void prepare(Object configurationObject) {
this.serializer = new SyndEntryActivitySerializer();
}
@Override
public void cleanUp() {
}
}