org.springframework.security.web.debug.Logger Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* 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
*
* https://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.springframework.security.web.debug;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Controls output for the Spring Security debug feature.
*
* @author Luke Taylor
* @since 3.1
*/
final class Logger {
private static final Log logger = LogFactory.getLog("Spring Security Debugger");
void info(String message) {
info(message, false);
}
void info(String message, boolean dumpStack) {
StringBuilder output = new StringBuilder(256);
output.append("\n\n************************************************************\n\n");
output.append(message).append("\n");
if (dumpStack) {
StringWriter os = new StringWriter();
new Exception().printStackTrace(new PrintWriter(os));
StringBuffer buffer = os.getBuffer();
// Remove the exception in case it scares people.
int start = buffer.indexOf("java.lang.Exception");
buffer.replace(start, start + 19, "");
output.append("\nCall stack: \n").append(os.toString());
}
output.append("\n\n************************************************************\n\n");
logger.info(output.toString());
}
}