reactor.js.core.json.JSObjectDeserializer.java Source code

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Here is the source code for reactor.js.core.json.JSObjectDeserializer.java

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/*
 * Copyright (c) 2011-2014 GoPivotal, Inc. All Rights Reserved.
 *
 *  Licensed 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 reactor.js.core.json;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonMappingException;
import jdk.nashorn.api.scripting.JSObject;
import reactor.js.core.JavaScriptArray;
import reactor.js.core.JavaScriptObject;

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

/**
 * @author Jon Brisbin
 */
class JSObjectDeserializer extends JsonDeserializer<JSObject> {
    @SuppressWarnings("unchecked")
    @Override
    public JSObject deserialize(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        Object obj = jp.readValueAs(Object.class);

        Object parent = ctxt.getAttribute("parent");
        ctxt.setAttribute("parent", obj);

        if (Map.class.isInstance(obj)) {
            return new JavaScriptObject((Map) obj, null, null, parent);
        } else if (List.class.isInstance(obj)) {
            return new JavaScriptArray((List) obj);
        } else {
            throw new JsonMappingException("Cannot convert value to a valid JSON object", jp.getCurrentLocation());
        }
    }
}