fr.ms.log4jdbc.message.AbstractMessage Maven / Gradle / Ivy

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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.log4jdbc.message;

import java.lang.reflect.Method;
import java.util.Iterator;

import fr.ms.log4jdbc.SqlOperation;
import fr.ms.log4jdbc.writer.MessageWriter;
import fr.ms.log4jdbc.writer.MessageWriterFactory;
import fr.ms.log4jdbc.writer.WrapperMessageWriterFactory;
import fr.ms.util.Service;

/**
 *
 * @see Marco4J
 *
 *
 * @author Marco Semiao
 *
 */
public abstract class AbstractMessage implements MessageProcess {

    private static WrapperMessageWriterFactory factory;

    static {
	final Iterator providers = Service.providers(WrapperMessageWriterFactory.class);

	while (providers.hasNext()) {
	    try {
		final WrapperMessageWriterFactory p = (WrapperMessageWriterFactory) providers.next();

		if (p != null && p.isEnabled()) {
		    if (factory == null || factory.getPriority() < p.getPriority()) {
			factory = p;
		    }
		}
	    } catch (final Throwable t) {
	    }
	}
    }

    public MessageWriter newMessageWriter(final SqlOperation message, final Method method, final Object[] args, final Object invoke, final Throwable exception) {
	final MessageWriterFactory messageWriterFactory = factory.getMessageWriterFactory();
	return messageWriterFactory.newMessageWriter(message, method, args, invoke, exception);
    }
}