org.gwt.json.serialization.client.collections.CollectionUtils.java Source code

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Here is the source code for org.gwt.json.serialization.client.collections.CollectionUtils.java

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/*
 * 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 org.gwt.json.serialization.client.collections;

import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONNull;
import com.google.gwt.json.client.JSONValue;
import org.gwt.json.serialization.client.GenericType;
import org.gwt.json.serialization.client.JsonGenericTypeSerializer;
import org.gwt.json.serialization.client.JsonSimpleTypeSerializer;

import java.util.Collection;

/**
 * @author andrii borovyk 09.07.2015
 */
public class CollectionUtils {

    public static JSONValue collectionToJson(Collection objects, JsonGenericTypeSerializer objectSerializer,
            GenericType[] genericTypes) {
        if (objects == null) {
            return JSONNull.getInstance();
        }
        JSONArray jsonArray = new JSONArray();
        int i = 0;
        for (Object obj : objects) {
            jsonArray.set(i, objectSerializer.serialize(obj, genericTypes));
            i++;
        }
        return jsonArray;
    }

    public static <T> void jsonToCollection(JSONValue objects, JsonGenericTypeSerializer<T> objectSerializer,
            GenericType[] genericTypes, Collection<T> collection) {
        if (objects == null)
            return;
        JSONArray array = objects.isArray();
        if (array == null)
            return;
        for (int i = 0; i < array.size(); i++) {
            collection.add(objectSerializer.deSerialize(array.get(i), genericTypes));
        }
    }
}