org.glowroot.agent.ToolMain Maven / Gradle / Ivy
/*
* Copyright 2018 the original author or authors.
*
* Licensed 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.
*/
package org.glowroot.agent;
import java.io.File;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.security.CodeSource;
import org.glowroot.agent.shaded.org.glowroot.common.util.Version;
public abstract class ToolMain {
public static void main(String[] args) throws Exception {
CodeSource codeSource = AgentPremain.class.getProtectionDomain().getCodeSource();
// suppress warnings is used instead of annotating this method with @Nullable
// just to avoid dependencies on other classes (in this case the @Nullable annotation)
@SuppressWarnings("argument.type.incompatible")
File glowrootJarFile = AgentPremain.getGlowrootJarFile(codeSource);
Directories directories = new Directories(glowrootJarFile);
MainEntryPoint.initLogging(directories.getConfDirs(), directories.getLogDir(), null);
if (args.length == 1 && args[0].equals("version")) {
System.out.println(Version.getVersion(MainEntryPoint.class));
return;
}
File embeddedCollectorJarFile = Directories.getEmbeddedCollectorJarFile(glowrootJarFile);
if (embeddedCollectorJarFile == null) {
System.err.println("missing lib/glowroot-embedded-collector.jar");
return;
}
ClassLoader loader =
new URLClassLoader(new URL[] {embeddedCollectorJarFile.toURI().toURL()});
Class clazz = Class.forName("org.glowroot.agent.embedded.ToolMain", true, loader);
Method method = clazz.getMethod("main", String[].class, Directories.class);
method.invoke(null, args, directories);
}
}