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SLF4J binding supporting stdout and stderr.
/**
* Copyright (C) 2006-2020 Talend Inc. - www.talend.com
*
* 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.talend.sdk.component.slf4j;
import static java.util.Locale.ROOT;
import java.io.PrintStream;
import org.slf4j.helpers.MarkerIgnoringBase;
import org.slf4j.helpers.MessageFormatter;
import lombok.Getter;
public class StdLogger extends MarkerIgnoringBase {
@Getter
private final String name;
private final boolean trace;
private final boolean debug;
private final boolean info;
private final boolean warn;
private final boolean error;
StdLogger(final String name) {
this.name = name;
final String level = System.getProperty(getClass().getName() + ".level", "info");
switch (level.toLowerCase(ROOT)) {
case "trace":
trace = debug = info = warn = error = true;
break;
case "debug":
trace = false;
debug = info = warn = error = true;
break;
case "info":
trace = debug = false;
info = warn = error = true;
break;
case "warn":
trace = debug = info = false;
warn = error = true;
break;
case "error":
trace = debug = info = warn = false;
error = true;
break;
default:
trace = debug = false;
info = warn = error = true;
}
}
@Override
public boolean isTraceEnabled() {
return trace;
}
@Override
public void trace(final String msg) {
if (!trace) {
return;
}
log("TRACE", msg, null, System.out);
}
@Override
public void trace(final String format, final Object arg) {
if (!trace) {
return;
}
log("TRACE", MessageFormatter.format(format, arg).getMessage(), null, System.out);
}
@Override
public void trace(final String format, final Object arg1, final Object arg2) {
if (!trace) {
return;
}
log("TRACE", MessageFormatter.format(format, arg1, arg1).getMessage(), null, System.out);
}
@Override
public void trace(final String format, final Object... arguments) {
if (!trace) {
return;
}
log("TRACE", MessageFormatter.arrayFormat(format, arguments).getMessage(), null, System.out);
}
@Override
public void trace(final String msg, final Throwable throwable) {
if (!trace) {
return;
}
log("TRACE", msg, throwable, System.out);
}
@Override
public boolean isDebugEnabled() {
return debug;
}
@Override
public void debug(final String msg) {
if (!debug) {
return;
}
log("DEBUG", msg, null, System.out);
}
@Override
public void debug(final String format, final Object arg) {
if (!debug) {
return;
}
log("DEBUG", MessageFormatter.format(format, arg).getMessage(), null, System.out);
}
@Override
public void debug(final String format, final Object arg1, final Object arg2) {
if (!debug) {
return;
}
log("DEBUG", MessageFormatter.format(format, arg1, arg1).getMessage(), null, System.out);
}
@Override
public void debug(final String format, final Object... arguments) {
if (!debug) {
return;
}
log("DEBUG", MessageFormatter.arrayFormat(format, arguments).getMessage(), null, System.out);
}
@Override
public void debug(final String msg, final Throwable throwable) {
if (!debug) {
return;
}
log("DEBUG", msg, throwable, System.out);
}
@Override
public boolean isInfoEnabled() {
return info;
}
@Override
public void info(final String msg) {
if (!info) {
return;
}
log("INFO", msg, null, System.out);
}
@Override
public void info(final String format, final Object arg) {
if (!info) {
return;
}
log("INFO", MessageFormatter.format(format, arg).getMessage(), null, System.out);
}
@Override
public void info(final String format, final Object arg1, final Object arg2) {
if (!info) {
return;
}
log("INFO", MessageFormatter.format(format, arg1, arg1).getMessage(), null, System.out);
}
@Override
public void info(final String format, final Object... arguments) {
if (!info) {
return;
}
log("INFO", MessageFormatter.arrayFormat(format, arguments).getMessage(), null, System.out);
}
@Override
public void info(final String msg, final Throwable throwable) {
if (!info) {
return;
}
log("INFO", msg, throwable, System.out);
}
@Override
public boolean isWarnEnabled() {
return warn;
}
@Override
public void warn(final String msg) {
if (!warn) {
return;
}
log("WARN", msg, null, System.out);
}
@Override
public void warn(final String format, final Object arg) {
if (!warn) {
return;
}
log("WARN", MessageFormatter.format(format, arg).getMessage(), null, System.out);
}
@Override
public void warn(final String format, final Object arg1, final Object arg2) {
if (!warn) {
return;
}
log("WARN", MessageFormatter.format(format, arg1, arg1).getMessage(), null, System.out);
}
@Override
public void warn(final String format, final Object... arguments) {
if (!warn) {
return;
}
log("WARN", MessageFormatter.arrayFormat(format, arguments).getMessage(), null, System.out);
}
@Override
public void warn(final String msg, final Throwable throwable) {
if (!warn) {
return;
}
log("WARN", msg, throwable, System.out);
}
@Override
public boolean isErrorEnabled() {
return error;
}
@Override
public void error(final String msg) {
if (!error) {
return;
}
log("ERROR", msg, null, System.err);
}
@Override
public void error(final String format, final Object arg) {
if (!error) {
return;
}
log("ERROR", MessageFormatter.format(format, arg).getMessage(), null, System.err);
}
@Override
public void error(final String format, final Object arg1, final Object arg2) {
if (!error) {
return;
}
log("ERROR", MessageFormatter.format(format, arg1, arg1).getMessage(), null, System.err);
}
@Override
public void error(final String format, final Object... arguments) {
if (!error) {
return;
}
log("ERROR", MessageFormatter.arrayFormat(format, arguments).getMessage(), null, System.err);
}
@Override
public void error(final String msg, final Throwable throwable) {
if (!error) {
return;
}
log("ERROR", msg, throwable, System.err);
}
private void log(final String level, final String message, final Throwable throwable, final PrintStream out) {
final StringBuilder builder = new StringBuilder(message.length() + level.length() + 3)
.append('[')
.append(level)
.append("] ")
.append(message);
out.println(builder);
if (throwable != null) {
throwable.printStackTrace(out);
}
out.flush();
}
}
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