/*
* Copyright (C) 2009-2014 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.core;
import java.lang.instrument.Instrumentation;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class AgentLauncher {
public interface AgentLaunchable {
void runAgent(String agentArgs, Instrumentation instrumentation, boolean injected, Class<?> launchingContext) throws Exception;
}
public static void runAgents(String agentArgs, Instrumentation instrumentation, boolean injected, Class<?> launchingContext) throws Throwable {
for (AgentInfo info : AGENTS) {
try {
Class<?> agentClass = Class.forName(info.className());
AgentLaunchable agent = (AgentLaunchable) agentClass.newInstance();
agent.runAgent(agentArgs, instrumentation, injected, launchingContext);
} catch (Throwable t) {
info.problem(t, instrumentation);
}
}
}
private static final List<AgentInfo> AGENTS = Collections.unmodifiableList(Arrays.<AgentInfo>asList(
new EclipsePatcherInfo()
));
private static abstract class AgentInfo {
abstract String className();
/**
* Called if an exception occurs while loading the agent represented by this AgentInfo object.
*
* @param t The throwable.
* @param instrumentation In case you want to take an alternative action.
*/
void problem(Throwable t, Instrumentation instrumentation) throws Throwable {
if (t instanceof ClassNotFoundException) {
//That's okay - this lombok evidently is a version with support for something stripped out.
return;
}
if (t instanceof ClassCastException) {
throw new InternalError("Lombok bug. Class: " + className() + " is not an implementation of lombok.core.Agent");
}
if (t instanceof IllegalAccessError) {
throw new InternalError("Lombok bug. Class: " + className() + " is not public");
}
if (t instanceof InstantiationException) {
throw new InternalError("Lombok bug. Class: " + className() + " is not concrete or has no public no-args constructor");
}
throw t;
}
}
private static class EclipsePatcherInfo extends AgentInfo {
@Override String className() {
return "lombok.eclipse.agent.EclipsePatcher";
}
}
}