com.cognifide.aet.vs.metadata.MapSerializer.java Source code

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Here is the source code for com.cognifide.aet.vs.metadata.MapSerializer.java

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/**
 * Automated Exploratory Tests
 *
 * Copyright (C) 2013 Cognifide Limited
 *
 * 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.cognifide.aet.vs.metadata;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import java.lang.reflect.Type;
import java.util.Map;

class MapSerializer implements JsonSerializer<Map<?, ?>> {

    @Override
    public JsonElement serialize(Map<?, ?> src, Type typeOfSrc, JsonSerializationContext context) {
        if (src == null || src.isEmpty()) {
            return null;
        }

        JsonObject map = new JsonObject();
        for (Map.Entry<?, ?> entry : src.entrySet()) {
            final Object entryKey = entry.getKey();
            final String key = entryKey != null ? entryKey.toString() : "";
            map.add(key, context.serialize(entry.getValue()));
        }
        return map;
    }
}