SysomosTypeConverter.java

/*
 * 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.sysomos.processor;

import org.apache.streams.core.StreamsDatum;
import org.apache.streams.core.StreamsProcessor;
import org.apache.streams.sysomos.conversion.SysomosBeatActivityConverter;

import com.sysomos.xml.BeatApi;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * Stream processor that converts Sysomos type to Activity.
 */
public class SysomosTypeConverter implements StreamsProcessor {

  public static final String STREAMS_ID = "SysomosTypeConverter";

  private SysomosBeatActivityConverter converter;

  @Override
  public String getId() {
    return STREAMS_ID;
  }

  @Override
  public List<StreamsDatum> process(StreamsDatum entry) {
    if (entry.getDocument() instanceof BeatApi.BeatResponse.Beat) {
      entry.setDocument(converter.convert((BeatApi.BeatResponse.Beat)entry.getDocument()));
      return Stream.of(entry).collect(Collectors.toList());
    } else {
      return new ArrayList<>();
    }
  }

  @Override
  public void prepare(Object configurationObject) {
    converter = new SysomosBeatActivityConverter();
  }

  @Override
  public void cleanUp() {
    //NOP
  }
}