org.mule.module.json.JsonNodeExpressionEvaluator Maven / Gradle / Ivy

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/*
 * $Id: JsonNodeExpressionEvaluator.java 22391 2011-07-12 12:00:48Z dirk.olmes $
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.module.json;

import org.mule.routing.AbstractSplitter;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.node.ArrayNode;
import org.codehaus.jackson.node.ValueNode;

/**
 * An JSON expression evaluator that returns {@link JsonNode}'s instead of strings.
 * Arrays are still returned as a {@link List} rather than as an {@link ArrayNode} to
 * enable splitting using the {@link AbstractSplitter}
 * 
 * @see org.mule.module.json.JsonData
 * @see JsonExpressionEvaluator
 */
public class JsonNodeExpressionEvaluator extends JsonExpressionEvaluator
{
    @Override
    protected Object extractResultFromNode(JsonNode result)
    {
        if (result instanceof ValueNode)
        {
            return result.getValueAsText();
        }
        if (result instanceof ArrayNode)
        {
            List