# StandardLogConcern.java

    /*
     * Copyright 2008 Niclas Hedhman. All rights Reserved.
     *
     * 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.qi4j.logging.log;

    import java.io.Serializable;
    import org.qi4j.api.Qi4j;
    import org.qi4j.api.common.Optional;
    import org.qi4j.api.composite.Composite;
    import org.qi4j.api.injection.scope.Service;
    import org.qi4j.api.injection.scope.Structure;
    import org.qi4j.api.injection.scope.This;
    import org.qi4j.logging.log.service.LoggingService;

    public class StandardLogConcern
        implements StandardLog
    {
        @Structure private Qi4j api;
        @Optional @Service private LoggingService loggingService;
        @This private Composite composite;

        @Override
        public void log( LogType type, String category, String message )
        {
            if( loggingService == null )
            {
                return;
            }
            loggingService.log( type, api.dereference( composite ), category, message );
        }

        @Override
        public void log( LogType type, String category, String message, Serializable param1 )
        {
            if( loggingService == null )
            {
                return;
            }
            loggingService.log( type, api.dereference( composite ), category, message, param1 );
        }

        @Override
        public void log( LogType type, String category, String message, Serializable param1, Serializable param2 )
        {
            if( loggingService == null )
            {
                return;
            }
            loggingService.log( type, api.dereference( composite ), category, message, param1, param2 );
        }

        @Override
        public void log( LogType type, String category, String message, Serializable... params )
        {
            if( loggingService == null )
            {
                return;
            }
            loggingService.log( type, api.dereference( composite ), category, message, params );
        }
    }