ErrorMessageDeserializer.java

/**
 * Copyright 2015 StreamSets Inc.
 *
 * Licensed under 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 com.streamsets.datacollector.json;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.streamsets.pipeline.api.impl.ErrorMessage;

import java.io.IOException;
import java.util.Map;

public class ErrorMessageDeserializer extends JsonDeserializer<ErrorMessage> {

  @Override
  public ErrorMessage deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
    ErrorMessage errorMessage = null;
    Map map = jp.readValueAs(Map.class);
    if (map != null) {
      errorMessage = new ErrorMessage((String) map.get("errorCode"), (String) map.get("nonLocalized"),
                                      (long) map.get("timestamp"));
    }
    return errorMessage;
  }
}