/*
* Copyright 2010-2013, CloudBees Inc.
*
* 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 com.cloudbees.sdk.boot2;
import com.cloudbees.sdk.GAV;
import com.cloudbees.sdk.boot.Launcher;
import com.cloudbees.sdk.extensibility.ExtensionList;
import com.cloudbees.sdk.maven.*;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import org.sonatype.aether.artifact.Artifact;
import org.sonatype.aether.repository.LocalRepository;
import org.sonatype.aether.repository.RemoteRepository;
import org.sonatype.aether.resolution.ArtifactResolutionException;
import org.sonatype.aether.resolution.DependencyResolutionException;
import org.sonatype.aether.resolution.DependencyResult;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.List;
import java.util.Properties;
/**
* 2nd-level bootstrapping.
*
* <p>
* This code gets run in a classloader that contains Guice+Aether+CloudBees Maven components,
* then it uses Aether to resolve bees-driver:RELEASE, which is the real entry point.
*
* @author Kohsuke Kawaguchi
*/
public class BeesLoader {
public static String VERSION = loadVersion(BeesLoader.class.getResourceAsStream("version.properties"));
/*package*/ static final GAV MAIN = new GAV("com.cloudbees.sdk", "bees-driver", "RELEASE");
public static void main(String[] args) throws Exception {
reportTime();
new BeesLoader().run(args);
}
private Injector injector;
private RepositoryService rs;
private boolean verbose;
private void run(String[] args) throws Exception {
if (displayInternalVersion(args)) {
System.out.println("CloudBees Bootstrap version: " + VERSION);
System.exit(0);
}
verbose = isVerbose(args);
BootMavenRepositorySystemSessionDecorator.setVerbose(verbose);
ResolvedDependenciesCache cache = new ResolvedDependenciesCache() {
/**
* Lazily loads Aether so that things go blindingly fast if the cache hits.
*/
private RepositoryService getRepositoryService() {
if (injector==null)
injector = Guice.createInjector(
new RepositorySystemModule() {
@Override
public List<RemoteRepository> getRemoteRepositories(ExtensionList<RemoteRepositoryDecorator> decorators) {
List<RemoteRepository> repos = super.getRemoteRepositories(decorators);
if (OFFLINE_BOOT)
repos.clear(); // boot without remote lookup
try {
String bootRepoUrl = new File(Launcher.getInstallationDirectory(), "boot-repo").toURI().toString();
repos.add(new RemoteRepository("bees-boot","default", bootRepoUrl));
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
return repos;
}
},
new AbstractModule() {
@Override
protected void configure() {
bind(RemoteRepositoryDecorator.class).toInstance(new RemoteRepositoryDecoratorImpl());
bind(MavenRepositorySystemSessionDecorator.class).to(BootMavenRepositorySystemSessionDecorator.class);
}
});
if (rs==null) {
// code getting to this point means we'll be using Aether to resolve stuff
System.out.println("Updating Bees SDK. This may take a while");
if (LOCAL_REPOSITORY!=null)
injector.getInstance(LocalRepositorySetting.class).set(
new LocalRepository(new File(LOCAL_REPOSITORY))
);
rs = injector.getInstance(RepositoryService.class);
}
return rs;
}
@Override
protected File getCacheDir() {
File dir = Launcher.getLocalRepository();
dir.mkdirs();
return dir;
}
@Override
protected DependencyResult forceResolve(GAV gav) throws DependencyResolutionException {
RepositoryService rs = getRepositoryService();
return rs.resolveDependencies(gav);
}
@Override
protected File resolveArtifact(Artifact a) throws ArtifactResolutionException {
return getRepositoryService().resolveArtifact(a).getArtifact().getFile();
}
};
List<File> jars= cache.resolve(getMAIN());
File tools = findToolsJar();
if (tools != null) jars.add(tools);
// we don't let this classloader delegate to the 2nd stage boot classloader
// in this way, the environment that the driver sees can be fully updated (including Guice, Aether, and Plexus)
// without updating the SDK itself.
URLClassLoader loader = new URLClassLoader(toURL(jars), null);
Class<?> beesClass = loader.loadClass("com.cloudbees.sdk.Bees");
Thread.currentThread().setContextClassLoader(loader);
// Set bootstrap current version
setBootstrapVersion(beesClass);
Method mainMethod = beesClass.getDeclaredMethod("main", String[].class);
Object obj = mainMethod.invoke(null, (Object)args);
if (obj instanceof Integer)
System.exit((Integer)obj);
}
private void setBootstrapVersion(Class<?> beesClass) {
try {
Field f = beesClass.getDeclaredField("BOOTSTRAP_VERSION");
f.set(null, VERSION);
} catch (Exception e) {
System.err.println("WARNING: Cannot set BOOTSTRAP_VERSION");
if (verbose) e.printStackTrace();
}
}
private static boolean isVerbose(String[] args) {
for (String arg : args) {
if (arg.equalsIgnoreCase("-v") || arg.equalsIgnoreCase("--verbose"))
return true;
}
return false;
}
private static boolean displayInternalVersion(String[] args) {
for (String arg : args) {
if (arg.equalsIgnoreCase("--showBootstrapVersion"))
return true;
}
return false;
}
/**
* Get the version number.
* <p/>
* To support running this from IDE and elsewhere, work gracefully if the version
* is not available or not filtered.
*/
private static String loadVersion(InputStream in) {
Properties props = new Properties();
if (in != null) {
try {
props.load(in);
} catch (IOException e) {
throw new Error(e);
} finally {
try {
in.close();
} catch (IOException ignored) {}
}
}
Object v = props.get("version");
if (v != null)
try {
return v.toString();
} catch (Exception ignored) {}
return "0";
}
private URL[] toURL(List<File> files) throws MalformedURLException {
URL[] jars = new URL[files.size()];
int i=0;
for (File f : files) {
jars[i++] = f.toURI().toURL();
}
return jars;
}
private static void reportTime() {
String profile = System.getProperty("profile");
if (profile !=null) {
System.out.println(BeesLoader.class.getName() + ": " + (System.nanoTime() - Long.valueOf(profile)) / 1000000L + "ms");
}
}
private static File findToolsJar() {
String javaHome = System.getenv("JAVA_HOME");
// Try to define it
if (javaHome == null) {
String[] paths = System.getProperty("sun.boot.library.path").split(",");
if (paths != null && paths.length > 0) {
javaHome = paths[0].trim();
}
}
if (javaHome == null) return null;
File dir = new File(javaHome);
File tools = new File(dir, "lib/tools.jar");
if (tools.exists()) return tools;
return null;
}
private static GAV getMAIN() {
String version = System.getProperty("bees.driverVersion");
if (version != null)
return new GAV("com.cloudbees.sdk", "bees-driver", version);
else
return MAIN;
}
/**
* Debug hook to use a different local repository.
* This is useful for testing fallback boot from boot-repo file repository.
*/
private static final String LOCAL_REPOSITORY = System.getProperty("bees.localRepository");
/**
* Debug hook to avoid looking remote repositories.
* This is also useful for testing fallback boot from boot-repo file repository.
*/
private static final boolean OFFLINE_BOOT = Boolean.getBoolean("bees.offlineBoot");
}