/**
* Logback: the generic, reliable, fast and flexible logging framework for Java.
*
* Copyright (C) 2000-2006, QOS.ch
*
* This library is free software, you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation.
*/
package ch.qos.logback.core.joran.action;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import ch.qos.logback.core.joran.spi.ActionException;
import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.joran.spi.Interpreter;
import ch.qos.logback.core.spi.ContextAwareBase;
/**
*
* Most of the work for configuring log4j is done by Actions.
*
* Methods of an Action are invoked while an XML file is parsed through.
*
* This class is largely copied from the relevant class in the commons-digester
* project of the Apache Software Foundation.
*
* @author Craig McClanahan
* @author Christopher Lenz
* @author Ceki Gülcü
*
*/
public abstract class Action extends ContextAwareBase {
public static final String NAME_ATTRIBUTE = "name";
public static final String VALUE_ATTRIBUTE = "value";
public static final String FILE_ATTRIBUTE = "file";
public static final String CLASS_ATTRIBUTE = "class";
public static final String PATTERN_ATTRIBUTE = "pattern";
public static final String ACTION_CLASS_ATTRIBUTE = "actionClass";
/**
* Called when the parser first encounters an element.
*
* The return value indicates whether child elements should be processed. If
* the returned value is 'false', then child elements are ignored.
*/
public abstract void begin(
InterpretationContext ec, String name, Attributes attributes) throws ActionException ;
public void body(InterpretationContext ec, String body) throws ActionException {
// NOP
}
public abstract void end(InterpretationContext ec, String name) throws ActionException;
public String toString() {
return this.getClass().getName();
}
protected int getColumnNumber(InterpretationContext ec) {
Interpreter jp = ec.getJoranInterpreter();
Locator locator = jp.getLocator();
if (locator != null) {
return locator.getColumnNumber();
}
return -1;
}
protected int getLineNumber(InterpretationContext ec) {
Interpreter jp = ec.getJoranInterpreter();
Locator locator = jp.getLocator();
if (locator != null) {
return locator.getLineNumber();
}
return -1;
}
}