/**
* 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;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.List;
import org.xml.sax.InputSource;
import ch.qos.logback.core.joran.event.SaxEvent;
import ch.qos.logback.core.joran.event.SaxEventRecorder;
import ch.qos.logback.core.joran.spi.DefaultNestedComponentRegistry;
import ch.qos.logback.core.joran.spi.EventPlayer;
import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.joran.spi.Interpreter;
import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.joran.spi.Pattern;
import ch.qos.logback.core.joran.spi.RuleStore;
import ch.qos.logback.core.joran.spi.SimpleRuleStore;
import ch.qos.logback.core.spi.ContextAwareBase;
public abstract class GenericConfigurator extends ContextAwareBase {
protected Interpreter interpreter;
final public void doConfigure(URL url) throws JoranException {
try {
InputStream in = url.openStream();
doConfigure(in);
in.close();
} catch (IOException ioe) {
String errMsg = "Could not open URL [" + url + "].";
addError(errMsg, ioe);
throw new JoranException(errMsg, ioe);
}
}
final public void doConfigure(String filename) throws JoranException {
doConfigure(new File(filename));
}
final public void doConfigure(File file) throws JoranException {
FileInputStream fis = null;
try {
fis = new FileInputStream(file);
doConfigure(fis);
} catch (IOException ioe) {
String errMsg = "Could not open [" + file.getName() + "].";
addError(errMsg, ioe);
throw new JoranException(errMsg, ioe);
} finally {
if (fis != null) {
try {
fis.close();
} catch (java.io.IOException ioe) {
String errMsg = "Could not close [" + file.getName() + "].";
addError(errMsg, ioe);
throw new JoranException(errMsg, ioe);
}
}
}
}
final public void doConfigure(InputStream inputStream) throws JoranException {
doConfigure(new InputSource(inputStream));
}
abstract protected void addInstanceRules(RuleStore rs);
abstract protected void addImplicitRules(Interpreter interpreter);
protected void addDefaultNestedComponentRegistryRules(DefaultNestedComponentRegistry registry) {
}
protected Pattern initialPattern() {
return new Pattern();
}
protected void buildInterpreter() {
RuleStore rs = new SimpleRuleStore(context);
addInstanceRules(rs);
this.interpreter = new Interpreter(context, rs, initialPattern());
InterpretationContext ec = interpreter.getInterpretationContext();
ec.setContext(context);
addImplicitRules(interpreter);
addDefaultNestedComponentRegistryRules(ec.getDefaultNestedComponentRegistry());
}
final public void doConfigure(final InputSource inputSource)
throws JoranException {
SaxEventRecorder recorder = new SaxEventRecorder();
recorder.setContext(context);
recorder.recordEvents(inputSource);
buildInterpreter();
// disallow simultaneous configurations of the same context
synchronized (context) {
interpreter.play(recorder.saxEventList);
}
}
public void doConfigure(final List<SaxEvent> eventList)
throws JoranException {
buildInterpreter();
EventPlayer player = new EventPlayer(interpreter);
player.play(eventList);
}
}