com.ibm.util.merge.json.ProviderDeserializer.java Source code

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Here is the source code for com.ibm.util.merge.json.ProviderDeserializer.java

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/*
 * Copyright 2015, 2015 IBM
 * 
 * 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.ibm.util.merge.json;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.ibm.util.merge.directive.provider.*;

import java.lang.reflect.Type;

public class ProviderDeserializer implements JsonDeserializer<AbstractProvider> {

    @Override
    public AbstractProvider deserialize(JsonElement json, Type provider, JsonDeserializationContext context) {
        JsonElement jsonType = json.getAsJsonObject().get("type");
        if (jsonType == null) {
            return null;
        }
        int myType = jsonType.getAsInt();
        switch (myType) {
        case Providers.TYPE_CSV:
            return context.deserialize(json, ProviderCsv.class);
        case Providers.TYPE_SQL:
            return context.deserialize(json, ProviderSql.class);
        case Providers.TYPE_TAG:
            return context.deserialize(json, ProviderTag.class);
        case Providers.TYPE_HTML:
            return context.deserialize(json, ProviderHtml.class);
        default:
            return null;
        }
    }
}