com.cloudera.api.ApiObjectMapper.java Source code

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Here is the source code for com.cloudera.api.ApiObjectMapper.java

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// Licensed to Cloudera, Inc. under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  Cloudera, Inc. 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.cloudera.api;

import com.fasterxml.jackson.databind.AnnotationIntrospector;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.SimpleTimeZone;

/**
 * This class is injected to give us control over the object mapper
 */
public class ApiObjectMapper extends ObjectMapper {

    public ApiObjectMapper() {
        // Print the JSON with indentation (ie. pretty print)
        configure(SerializationFeature.INDENT_OUTPUT, true);

        // Allow JAX-B annotations.
        setAnnotationIntrospector(new AnnotationIntrospector.Pair(
                getSerializationConfig().getAnnotationIntrospector(), new JaxbAnnotationIntrospector()));

        // Make Jackson respect @XmlElementWrapper.
        enable(MapperFeature.USE_WRAPPER_NAME_AS_PROPERTY_NAME);

        // Print all dates in ISO8601 format
        setDateFormat(makeISODateFormat());
    }

    public static DateFormat makeISODateFormat() {
        DateFormat iso8601 = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
        Calendar cal = Calendar.getInstance(new SimpleTimeZone(0, "GMT"));
        iso8601.setCalendar(cal);
        return iso8601;
    }

    public static DateFormat makeDateFormat(String format) {
        DateFormat dateFormat = new SimpleDateFormat(format);
        Calendar cal = Calendar.getInstance(new SimpleTimeZone(0, "GMT"));
        dateFormat.setCalendar(cal);
        return dateFormat;
    }
}