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package com.sun.tools.xjc.servlet.boxed;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import javax.servlet.http.HttpServletRequest;
import org.xml.sax.SAXException;
import com.sun.codemodel.CodeWriter;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.writer.PrologCodeWriter;
import com.sun.codemodel.writer.ZipCodeWriter;
import com.sun.tools.xjc.AbortException;
import com.sun.tools.xjc.ConsoleErrorReporter;
import com.sun.tools.xjc.Driver;
import com.sun.tools.xjc.ErrorReceiver;
import com.sun.tools.xjc.GrammarLoader;
import com.sun.tools.xjc.Options;
import com.sun.tools.xjc.grammar.AnnotatedGrammar;
import com.sun.tools.xjc.servlet.Compiler;
import com.sun.tools.xjc.servlet.Dialer;
import com.sun.tools.xjc.servlet.Mode;
import com.sun.tools.xjc.servlet.Unzipper;
import com.sun.tools.xjc.servlet.reaper.DiskManagerServlet;
/**
* Runs the compilation in a separate thread.
*
* @author
* Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
public class CompilerImpl extends Compiler {
private final Options opt;
/** Status message produced by the compiler. */
private String status = "";
/** Image of the zip file. */
private byte[] zipFile;
public final File outDir;
private final String remoteHost;
/** Used to limit the number of concurrent compilation to 1. */
private static final Object lock = new Object();
public CompilerImpl(Options _opt, HttpServletRequest request ) throws IOException {
this.opt = _opt;
this.remoteHost = request.getRemoteHost();
opt.strictCheck = false;
outDir = DiskManagerServlet.createOutDir();
// be cooperative
setPriority(Thread.NORM_PRIORITY-1);
}
public File getOutDir() {
return outDir;
}
/**
* This method returns the status message produced by the compiler.
*/
public String getStatusMessages() {
return status;
}
/**
* If the compilation was successful, this method
* returns the byte image of the source code zip file.
*/
public byte[] getZipFile() {
return zipFile;
}
public void run() {
synchronized(lock) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream status = new PrintStream(baos);
try {
// status output will be sent to this object.
// load a schema
AnnotatedGrammar grammar = null;
ErrorReceiver errorReceiver = new ConsoleErrorReporter(status,true,opt.quiet);
try {
grammar = GrammarLoader.load( opt, new JCodeModel(), errorReceiver );
} catch( SAXException e ) {
status.println("Unexpected failure:\n");
e.printStackTrace(status);
return;
}
if(grammar==null)
return; // failed to compile
// generate code and return to the client.
try {
if( Driver.generateCode(grammar,opt,errorReceiver)!= null ) {
ByteArrayOutputStream zip = new ByteArrayOutputStream();
CodeWriter cw = new ZipCodeWriter(zip);
cw = new PrologCodeWriter( cw, getPrologMessage() );
cw = Driver.createCodeWriter(cw); // put normal JAXB RI prolog
grammar.codeModel.build(cw);
zipFile = zip.toByteArray();
if( Mode.canUseDisk )
new Unzipper(outDir).unzip(new ByteArrayInputStream(zipFile));
}
} catch( AbortException e ) {
// the error message should have been reported already
}
status.println("\ndone.");
} catch( Throwable e ) {
// catch any error and send them to the status so that we can
// investigate them later.
status.println("Unexpected failure:\n");
e.printStackTrace(status);
} finally {
status.close();
this.status = new String(baos.toByteArray());
}
}
if( !Mode.inJWSDP )
// send back the result, but not when it's in JWSDP
new Dialer(this,remoteHost).start();
}
private String getPrologMessage() {
return
"WARNING:\n"+
"We don't recommend you to use this for a product. \n" +
"This source code is generated from an early access release to JAXB RI. \n" +
"It doesn't go through the rigorous testing the formal releases \n" +
"go through, and therefore it may contain bugs. We may change \n" +
"the behavior of the compiler and that can break your code.";
}
}