/*
* Copyright 2011 Objectos, Fábrica de Software LTDA.
*
* 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 br.com.objectos.comuns.util;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import br.com.objectos.comuns.io.TailFileReader;
import com.google.common.base.Preconditions;
/**
* @author marcio.endo@objectos.com.br (Marcio Endo)
*/
public class ArquivoDeLog {
private Logger logger = LoggerFactory.getLogger(getClass());
private final File arquivo;
private PrintWriter log;
public ArquivoDeLog(File arquivo) {
this.arquivo = arquivo;
}
public void bindLoggerTo(Logger logger) {
this.logger = logger;
}
public void open() {
try {
FileWriter fileWriter = new FileWriter(arquivo, true);
log = new PrintWriter(fileWriter, false);
} catch (IOException e) {
throw new ExcecaoDeArquivoDeLog(e);
}
}
public void flush() {
log.flush();
}
public void close() {
flush();
log.close();
}
public File getArquivo() {
return arquivo;
}
public void debug(String conteudo, Object... opcoes) {
String msg = msg(conteudo, opcoes);
logger.debug(msg);
}
public void info(String conteudo, Object... opcoes) {
String msg = msg(conteudo, opcoes);
logger.info(msg);
write("I", msg);
}
public void error(String conteudo, Object... opcoes) {
String msg = msg(conteudo, opcoes);
logger.error(msg);
write("E", msg);
}
public void error(String conteudo, Throwable e, Object... opcoes) {
String msg = msg(conteudo, opcoes);
logger.error(msg, e);
write("E", msg);
e.printStackTrace(log);
}
public TailFileReader toToFileReader() {
return new TailFileReader(arquivo);
}
private void write(String nivel, String msg) {
Preconditions.checkState(log != null,
"Você precisa chamar o método open() antes de escrever neste log.");
String header = header(nivel);
log.println(header + " " + msg);
}
private String header(String nivel) {
String formato = "[%1$s] %2$tY-%2$tm-%2$td %2$tH:%2$tM:%2$tS";
String header = String.format(formato, nivel, new Date());
return header;
}
private String msg(String conteudo, Object... opcoes) {
return String.format(conteudo, opcoes);
}
}