/*
* Created on 24/ago/2011
* Copyright 2011 by Andrea Vacondio (andrea.vacondio@gmail.com).
*
* This file is part of the Sejda source code
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sejda.core.support.prefix.processor;
import org.sejda.core.support.prefix.model.NameGenerationRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Decorator for a prefix processor performing a trace logging before and after the process.
*
* @author Andrea Vacondio
*
*/
class LoggingPrefixProcessorDecorator implements PrefixProcessor {
private static final Logger LOG = LoggerFactory.getLogger(LoggingPrefixProcessorDecorator.class);
private PrefixProcessor decorated;
public LoggingPrefixProcessorDecorator(PrefixProcessor decorated) {
if (decorated == null) {
throw new IllegalArgumentException("Decorated processor cannot be null.");
}
this.decorated = decorated;
}
@Override
public String process(String inputPrefix, NameGenerationRequest request) {
LOG.trace("Processing prefix '{}' with processor '{}'", inputPrefix, decorated.getClass());
String retVal = decorated.process(inputPrefix, request);
LOG.trace("Processed prefix value: '{}'", retVal);
return retVal;
}
}