content: /**
   * 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.apex.malhar.contrib.parser;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.HashMap;
  
  import org.json.simple.parser.ContentHandler;
  
  import com.google.protobuf.TextFormat.ParseException;
  
  /**
   * A concrete implementation of Json ContentHandler<br>
   * Matches JSON keys set from the {@link StreamingJsonParser }
   *
   * @since 3.5.0
   */
  public class JsonKeyFinder implements ContentHandler
  {
    public JsonKeyFinder()
    {
      keyValMap = new HashMap<>();
    }
  
    public int getKeyCount()
    {
      return keyCount;
    }
  
    public void setKeyCount(int keyCount)
    {
      this.keyCount = keyCount;
    }
  
    private Object value;
    private HashMap<Object, Object> keyValMap;
    private int keyCount = 0;
  
    public HashMap<Object, Object> getKeyValMap()
    {
      return keyValMap;
    }
  
    public void setKeyValMap(HashMap<Object, Object> keyValMap)
    {
      this.keyValMap = keyValMap;
    }
  
    private boolean found = false;
    private boolean end = false;
    private String key;
  
    private ArrayList<String> matchKeyList;
  
    public void setMatchKeyList(ArrayList<String> matchKeyList)
    {
      this.matchKeyList = matchKeyList;
    }
  
    public ArrayList<String> getMatchKeyList()
    {
      return matchKeyList;
    }
  
    public Object getValue()
    {
      return value;
    }
  
    public boolean isEnd()
    {
      return end;
    }
  
    public void setFound(boolean found)
    {
      this.found = found;
    }
  
    public boolean isFound()
    {
      return found;
    }
  
    public void startJSON() throws ParseException, IOException
    {
      found = false;
      end = false;
    }
  
    public void endJSON() throws ParseException, IOException
    {
      end = true;
    }
  
    public boolean primitive(Object value) throws ParseException, IOException
    {
      if (getMatchKeyList().contains(key)) {
        found = true;
        this.value = value;
        keyValMap.put(key, value);
        key = null;
        keyCount++;
        return false;
      }
      return true;
    }
  
    public boolean startArray() throws ParseException, IOException
    {
      return true;
    }
  
    public boolean startObject() throws ParseException, IOException
    {
      return true;
    }
  
    public boolean startObjectEntry(String key) throws ParseException, IOException
    {
      this.key = key;
      return true;
    }
  
    public boolean endArray() throws ParseException, IOException
    {
      return false;
    }
  
    public boolean endObject() throws ParseException, IOException
    {
      return true;
    }
  
    public boolean endObjectEntry() throws ParseException, IOException
    {
      return true;
    }
  }
  