org.apache.juli.logging.ch.qos.logback.core.joran.conditional.PropertyEvalScriptBuilder Maven / Gradle / Ivy
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package org.apache.juli.logging.ch.qos.logback.core.joran.conditional;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.apache.juli.logging.ch.qos.logback.core.spi.PropertyContainer;
import org.codehaus.commons.compiler.CompileException;
import org.codehaus.janino.ClassBodyEvaluator;
import org.apache.juli.logging.ch.qos.logback.core.spi.ContextAwareBase;
public class PropertyEvalScriptBuilder extends ContextAwareBase {
private static String SCRIPT_PREFIX = "" + "public boolean evaluate() { return ";
private static String SCRIPT_SUFFIX = "" + "; }";
final PropertyContainer localPropContainer;
public PropertyEvalScriptBuilder(PropertyContainer localPropContainer) {
this.localPropContainer = localPropContainer;
}
Map map = new HashMap();
public Condition build(String script) throws IllegalAccessException, CompileException, InstantiationException,
SecurityException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
ClassBodyEvaluator cbe = new ClassBodyEvaluator();
cbe.setImplementedInterfaces(new Class[] { Condition.class });
cbe.setExtendedClass(PropertyWrapperForScripts.class);
cbe.setParentClassLoader(ClassBodyEvaluator.class.getClassLoader());
cbe.cook(SCRIPT_PREFIX + script + SCRIPT_SUFFIX);
Class clazz = cbe.getClazz();
Condition instance = (Condition) clazz.getDeclaredConstructor().newInstance();
Method setMapMethod = clazz.getMethod("setPropertyContainers", PropertyContainer.class,
PropertyContainer.class);
setMapMethod.invoke(instance, localPropContainer, context);
return instance;
}
}