org.jenkinsci.plugins.fabric8.support.JSONHelper.java Source code

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Here is the source code for org.jenkinsci.plugins.fabric8.support.JSONHelper.java

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/**
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.jenkinsci.plugins.fabric8.support;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.kohsuke.stapler.HttpResponse;
import org.kohsuke.stapler.StaplerRequest;
import org.kohsuke.stapler.StaplerResponse;

import javax.servlet.ServletException;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

/**
 */
public class JSONHelper {
    private static ObjectMapper objectMapper = new ObjectMapper();

    static {
        objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
    }

    public static ObjectMapper getObjectMapper() {
        return objectMapper;
    }

    public static HttpResponse jsonResponse(final Object payload) {
        return new HttpResponse() {
            @Override
            public void generateResponse(StaplerRequest request, StaplerResponse response, Object node)
                    throws IOException, ServletException {
                response.setContentType("application/json");
                ByteArrayOutputStream buffer = new ByteArrayOutputStream();
                objectMapper.writeValue(buffer, payload);
                response.getOutputStream().write(buffer.toByteArray());
            }
        };
    }
}