com.github.nmorel.gwtjackson.guava.client.deser.ImmutableMultimapJsonDeserializer.java Source code

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Here is the source code for com.github.nmorel.gwtjackson.guava.client.deser.ImmutableMultimapJsonDeserializer.java

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/*
 * Copyright 2013 Nicolas Morel
 *
 * 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.github.nmorel.gwtjackson.guava.client.deser;

import com.github.nmorel.gwtjackson.client.JsonDeserializationContext;
import com.github.nmorel.gwtjackson.client.JsonDeserializer;
import com.github.nmorel.gwtjackson.client.JsonDeserializerParameters;
import com.github.nmorel.gwtjackson.client.deser.map.key.KeyDeserializer;
import com.github.nmorel.gwtjackson.client.stream.JsonReader;
import com.google.common.collect.ImmutableMultimap;

/**
 * Default {@link JsonDeserializer} implementation for {@link ImmutableMultimap}.
 * <p>Cannot be overriden. Use {@link BaseMultimapJsonDeserializer}.</p>
 *
 * @param <K> Type of the keys inside the {@link ImmutableMultimap}
 * @param <V> Type of the values inside the {@link ImmutableMultimap}
 *
 * @author Nicolas Morel
 */
public final class ImmutableMultimapJsonDeserializer<K, V>
        extends BaseImmutableMultimapJsonDeserializer<ImmutableMultimap<K, V>, K, V> {

    /**
     * @param keyDeserializer {@link KeyDeserializer} used to deserialize the keys.
     * @param valueDeserializer {@link JsonDeserializer} used to deserialize the values.
     * @param <K> Type of the keys inside the {@link ImmutableMultimap}
     * @param <V> Type of the values inside the {@link ImmutableMultimap}
     *
     * @return a new instance of {@link ImmutableMultimapJsonDeserializer}
     */
    public static <K, V> ImmutableMultimapJsonDeserializer<K, V> newInstance(KeyDeserializer<K> keyDeserializer,
            JsonDeserializer<V> valueDeserializer) {
        return new ImmutableMultimapJsonDeserializer<K, V>(keyDeserializer, valueDeserializer);
    }

    /**
     * @param keyDeserializer {@link KeyDeserializer} used to deserialize the keys.
     * @param valueDeserializer {@link JsonDeserializer} used to deserialize the values.
     */
    private ImmutableMultimapJsonDeserializer(KeyDeserializer<K> keyDeserializer,
            JsonDeserializer<V> valueDeserializer) {
        super(keyDeserializer, valueDeserializer);
    }

    @Override
    protected ImmutableMultimap<K, V> doDeserialize(JsonReader reader, JsonDeserializationContext ctx,
            JsonDeserializerParameters params) {
        ImmutableMultimap.Builder<K, V> builder = ImmutableMultimap.builder();
        buildMultimap(reader, ctx, params, builder);
        return builder.build();
    }
}