com.jsonstore.jackson.JsonOrgJSONObjectDeserializer.java Source code

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Here is the source code for com.jsonstore.jackson.JsonOrgJSONObjectDeserializer.java

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/*
 *     Copyright 2016 IBM Corp.
 *     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 com.jsonstore.jackson;

import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.JsonToken;
import org.codehaus.jackson.map.DeserializationContext;
import org.codehaus.jackson.map.deser.StdDeserializer;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;

public class JsonOrgJSONObjectDeserializer extends StdDeserializer<JSONObject> {
    protected static final JsonOrgJSONObjectDeserializer instance = new JsonOrgJSONObjectDeserializer();

    protected JsonOrgJSONObjectDeserializer() {
        super(JSONObject.class);
    }

    @Override
    public JSONObject deserialize(JsonParser parser, DeserializationContext context)
            throws IOException, JsonProcessingException {
        JSONObject result = new JacksonSerializedJSONObject();
        JsonToken token = parser.getCurrentToken();

        if (token == JsonToken.START_OBJECT) {
            token = parser.nextToken();
        }

        try {
            while (token != JsonToken.END_OBJECT) {
                String name;

                if (token != JsonToken.FIELD_NAME) {
                    throw context.wrongTokenException(parser, JsonToken.FIELD_NAME, ""); //$NON-NLS-1$
                }

                name = parser.getCurrentName();
                token = parser.nextToken();

                switch (token) {
                case START_ARRAY: {
                    result.put(name, JsonOrgJSONArrayDeserializer.instance.deserialize(parser, context));

                    break;
                }

                case START_OBJECT: {
                    result.put(name, deserialize(parser, context));

                    break;
                }

                case VALUE_EMBEDDED_OBJECT: {
                    result.put(name, parser.getEmbeddedObject());

                    break;
                }

                case VALUE_FALSE: {
                    result.put(name, Boolean.FALSE);

                    break;
                }

                case VALUE_NULL: {
                    result.put(name, JSONObject.NULL);

                    break;
                }

                case VALUE_NUMBER_FLOAT: {
                    result.put(name, parser.getNumberValue());

                    break;
                }

                case VALUE_NUMBER_INT: {
                    result.put(name, parser.getNumberValue());

                    break;
                }

                case VALUE_STRING: {
                    result.put(name, parser.getText());

                    break;
                }

                case VALUE_TRUE: {
                    result.put(name, Boolean.TRUE);

                    break;
                }

                case END_ARRAY:
                case END_OBJECT:
                case FIELD_NAME:
                case NOT_AVAILABLE: {
                    break;
                }
                }

                token = parser.nextToken();
            }
        }

        catch (JSONException e) {
            throw context.mappingException(e.getMessage());
        }

        return result;
    }
}