org.apache.log4j.spi.LocationInfo Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
// Contributors: Mathias Rupprecht
package org.apache.log4j.spi;
/**
The internal representation of caller location information.
@since 0.8.3
*/
public class LocationInfo implements java.io.Serializable {
/**
Instantiate location information based on a Throwable. We
expect the Throwable t, to be in the format
java.lang.Throwable
...
at org.apache.log4j.PatternLayout.format(PatternLayout.java:413)
at org.apache.log4j.FileAppender.doAppend(FileAppender.java:183)
at org.apache.log4j.Category.callAppenders(Category.java:131)
at org.apache.log4j.Category.log(Category.java:512)
at callers.fully.qualified.className.methodName(FileName.java:74)
...
However, we can also deal with JIT compilers that "lose" the
location information, especially between the parentheses.
@param t throwable used to determine location, may be null.
@param fqnOfCallingClass class name of first class considered part of
the logging framework. Location will be site that calls a method on this class.
*/
public LocationInfo(Throwable t, String fqnOfCallingClass) {
}
/**
* Create new instance.
* @param file source file name
* @param classname class name
* @param method method
* @param line source line number
*
* @since 1.2.15
*/
public LocationInfo(
final String file,
final String classname,
final String method,
final String line) {
}
/**
Return the fully qualified class name of the caller making the
logging request.
*/
public
String getClassName() {
return null;
}
/**
Return the file name of the caller.
This information is not always available.
*/
public
String getFileName() {
return null;
}
/**
Returns the line number of the caller.
This information is not always available.
*/
public
String getLineNumber() {
return null;
}
/**
Returns the method name of the caller.
*/
public
String getMethodName() {
return null;
}
}