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package com.sun.tools.jxc;
import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.JAXBContext;
import com.sun.mirror.apt.AnnotationProcessorFactory;
import com.sun.tools.jxc.apt.Options;
import com.sun.tools.xjc.BadCommandLineException;
import com.sun.tools.xjc.api.util.APTClassLoader;
import com.sun.tools.xjc.api.util.ToolsJarNotFoundException;
import com.sun.xml.bind.util.Which;
/**
* CLI entry-point to the schema generator.
*
* @author Bhakti Mehta
*/
public class SchemaGenerator {
/**
* Runs the schema generator.
*/
public static void main(String[] args) throws Exception {
System.exit(run(args));
}
public static int run(String[] args) throws Exception {
try {
ClassLoader cl = SchemaGenerator.class.getClassLoader();
if(cl==null) cl = ClassLoader.getSystemClassLoader();
ClassLoader classLoader = new APTClassLoader(cl,packagePrefixes);
return run(args, classLoader);
} catch( ToolsJarNotFoundException e) {
System.err.println(e.getMessage());
return -1;
}
}
/**
* List of package prefixes we want to load in the same package
*/
private static final String[] packagePrefixes = {
"com.sun.tools.jxc.",
"com.sun.tools.xjc.",
"com.sun.istack.tools.",
"com.sun.tools.apt.",
"com.sun.tools.javac.",
"com.sun.tools.javadoc.",
"com.sun.mirror."
};
/**
* Runs the schema generator.
*
* @param classLoader
* the schema generator will run in this classLoader.
* It needs to be able to load APT and JAXB RI classes. Note that
* JAXB RI classes refer to APT classes. Must not be null.
*
* @return
* exit code. 0 if success.
*
*/
public static int run(String[] args, ClassLoader classLoader) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
final Options options = new Options();
if (args.length ==0) {
usage();
return -1;
}
for (String arg : args) {
if (arg.equals("-help")) {
usage();
return -1;
}
if (arg.equals("-version")) {
System.out.println(Messages.VERSION.format());
return -1;
}
}
try {
options.parseArguments(args);
} catch (BadCommandLineException e) {
// there was an error in the command line.
// print usage and abort.
System.out.println(e.getMessage());
System.out.println();
usage();
return -1;
}
Class schemagenRunner = classLoader.loadClass(Runner.class.getName());
Method mainMethod = schemagenRunner.getDeclaredMethod("main",String[].class,File.class);
List<String> aptargs = new ArrayList<String>();
if(hasClass(options.arguments)) {
aptargs.add("-XclassesAsDecls");
}
if (options.encoding != null) {
aptargs.add("-encoding");
aptargs.add(options.encoding);
}
// make jaxb-api.jar visible to classpath
File jaxbApi = findJaxbApiJar();
if(jaxbApi!=null) {
if(options.classpath!=null) {
options.classpath = options.classpath+File.pathSeparatorChar+jaxbApi;
} else {
options.classpath = jaxbApi.getPath();
}
}
aptargs.add("-cp");
aptargs.add(options.classpath);
if(options.targetDir!=null) {
aptargs.add("-d");
aptargs.add(options.targetDir.getPath());
}
aptargs.addAll(options.arguments);
String[] argsarray = aptargs.toArray(new String[aptargs.size()]);
return (Integer)mainMethod.invoke(null,new Object[]{argsarray,options.episodeFile});
}
/**
* Computes the file system path of <tt>jaxb-api.jar</tt> so that
* APT will see them in the <tt>-cp</tt> option.
*
* <p>
* In Java, you can't do this reliably (for that matter there's no guarantee
* that such a jar file exists, such as in Glassfish), so we do the best we can.
*
* @return
* null if failed to locate it.
*/
private static File findJaxbApiJar() {
String url = Which.which(JAXBContext.class);
if(url==null) return null; // impossible, but hey, let's be defensive
if(!url.startsWith("jar:") || url.lastIndexOf('!')==-1)
// no jar file
return null;
String jarFileUrl = url.substring(4,url.lastIndexOf('!'));
if(!jarFileUrl.startsWith("file:"))
return null; // not from file system
try {
File f = new File(new URL(jarFileUrl).getFile());
if(f.exists() && f.getName().endsWith(".jar"))
return f;
else
return null;
} catch (MalformedURLException e) {
return null; // impossible
}
}
/**
* Returns true if the list of arguments have an argument
* that looks like a class name.
*/
private static boolean hasClass(List<String> args) {
for (String arg : args) {
if(!arg.endsWith(".java"))
return true;
}
return false;
}
private static void usage( ) {
System.out.println(Messages.USAGE.format());
}
public static final class Runner {
public static int main(String[] args, File episode) throws Exception {
ClassLoader cl = Runner.class.getClassLoader();
Class apt = cl.loadClass("com.sun.tools.apt.Main");
Method processMethod = apt.getMethod("process",AnnotationProcessorFactory.class, String[].class);
com.sun.tools.jxc.apt.SchemaGenerator r = new com.sun.tools.jxc.apt.SchemaGenerator();
if(episode!=null)
r.setEpisodeFile(episode);
return (Integer) processMethod.invoke(null, r, args);
}
}
}