libraries/logging/src/main/java/org/apache/polygene/library/logging/log/service/LogOnConsoleSideEffect.java

/*
 *  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 org.apache.polygene.library.logging.log.service;

import java.io.PrintStream;
import java.lang.reflect.Method;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import org.apache.polygene.api.PolygeneAPI;
import org.apache.polygene.api.composite.Composite;
import org.apache.polygene.api.injection.scope.Invocation;
import org.apache.polygene.api.sideeffect.SideEffectOf;
import org.apache.polygene.library.logging.log.LogType;

/**
 * The ConsoleViewSideEffect is just a temporary solution for logging output, until a more
 * robust framework has been designed.
 */
public abstract class LogOnConsoleSideEffect extends SideEffectOf<LoggingService>
    implements LoggingService
{
    private static PrintStream OUT = System.err;

    private final ResourceBundle bundle;

    public LogOnConsoleSideEffect( @Invocation Method thisMethod )
    {
        bundle = ResourceBundle.getBundle( thisMethod.getDeclaringClass().getName() );
    }

    public void log( LogType type, Composite composite, String category, String message )
    {
        String localized = bundle.getString( message );
        String logType = type.name();
        OUT.println( logType + ":" + category + ":" + getCompositeName( composite ) + ": " + localized );
    }

    private String getCompositeName( Composite composite )
    {
        return PolygeneAPI.FUNCTION_DESCRIPTOR_FOR.apply( composite ).types().findFirst().get().getName();
    }

    public void log( LogType type, Composite composite, String category, String message, Object param1 )
    {
        String localized = bundle.getString( message );
        String formatted = MessageFormat.format( localized, param1 );
        String logType = type.name();
        OUT.println( logType + ":" + category + ":" + getCompositeName( composite ) + ": " + formatted );
    }

    public void log( LogType type, Composite composite, String category, String message, Object param1, Object param2 )
    {
        String localized = bundle.getString( message );
        String formatted = MessageFormat.format( localized, param1, param2 );
        String logtype = type.name();
        OUT.println( logtype + ":" + category + ":" + getCompositeName( composite ) + ": " + formatted );
    }

    public void log( LogType type, Composite composite, String category, String message, Object... params )
    {
        String localized = bundle.getString( message );
        String formatted = MessageFormat.format( localized, params );
        String logType = type.name();
        OUT.println( logType + ":" + category + ":" + getCompositeName( composite ) + ": " + formatted );
    }
}