com.google.wave.api.data.converter.EventDataConverterModule.java Source code

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Here is the source code for com.google.wave.api.data.converter.EventDataConverterModule.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.google.wave.api.data.converter;

import com.google.common.collect.Maps;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Singleton;
import com.google.wave.api.ProtocolVersion;
import com.google.wave.api.data.converter.v21.EventDataConverterV21;
import com.google.wave.api.data.converter.v22.EventDataConverterV22;

import java.util.NavigableMap;

/**
 * Guice module for setting up the data conversion part of the {@link RobotSerializer}.
 *
 */
public class EventDataConverterModule extends AbstractModule {

    /**
     * @return A singleton instance of a {@link EventDataConverterManager}.
     */
    @Singleton
    @Provides
    static EventDataConverterManager provideEventDataConverterManager() {
        // v0.1 till v0.21 use the same event data converter.
        NavigableMap<ProtocolVersion, EventDataConverter> converters = Maps.newTreeMap();
        EventDataConverterV21 eventDataConverterV21 = new EventDataConverterV21();
        converters.put(ProtocolVersion.V1, eventDataConverterV21);
        converters.put(ProtocolVersion.V2, eventDataConverterV21);
        converters.put(ProtocolVersion.V2_1, eventDataConverterV21);
        converters.put(ProtocolVersion.V2_2, new EventDataConverterV22());
        return new EventDataConverterManager(converters);
    }

    @Override
    protected void configure() {
    }
}