# ModuleApplicationService.java

    /*
     * Copyright 2015 Aroma Tech.
     *
     * 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 tech.aroma.application.service;

    import com.google.inject.AbstractModule;
    import com.google.inject.Provides;
    import decorice.DecoratorModule;
    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;
    import java.util.function.Function;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import tech.aroma.thrift.application.service.ApplicationService;
    import tech.aroma.thrift.authentication.ApplicationToken;
    import tech.aroma.thrift.authentication.AuthenticationToken;
    import tech.aroma.thrift.functions.TokenFunctions;

    /**
     *
     * @author SirWellington
     */
    public final class ModuleApplicationService extends AbstractModule
    {
        private final static Logger LOG = LoggerFactory.getLogger(ModuleApplicationService.class);

        @Override
        protected void configure()
        {
            install(new ServiceModule());

            bind(ExecutorService.class).toInstance(Executors.newWorkStealingPool(10));
        }

        @Provides
        Function<AuthenticationToken, ApplicationToken> provideTokenMapper()
        {
            return TokenFunctions.authTokenToAppTokenFunction();
        }

        private static class ServiceModule extends DecoratorModule
        {
            {
                bind(ApplicationService.Iface.class)
                    .to(ApplicationServiceBase.class)
                    .decoratedBy(AuthenticationLayer.class);
            }
        }

    }