/*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.internal.xjc;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.sun.codemodel.internal.CodeWriter;
import com.sun.codemodel.internal.JPackage;
import com.sun.codemodel.internal.writer.FileCodeWriter;
import com.sun.codemodel.internal.writer.PrologCodeWriter;
import com.sun.org.apache.xml.internal.resolver.CatalogManager;
import com.sun.org.apache.xml.internal.resolver.tools.CatalogResolver;
import com.sun.tools.internal.xjc.api.ClassNameAllocator;
import com.sun.tools.internal.xjc.api.SpecVersion;
import com.sun.tools.internal.xjc.generator.bean.field.FieldRendererFactory;
import com.sun.tools.internal.xjc.model.Model;
import com.sun.tools.internal.xjc.reader.Util;
import com.sun.xml.internal.bind.api.impl.NameConverter;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
/**
* Global options.
*
* <p>
* This class stores invocation configuration for XJC.
* The configuration in this class shoule be abstract enough so that
* it could be parsed from both command-line or Ant.
*/
public class Options
{
/** If "-debug" is specified. */
public boolean debugMode;
/** If the "-verbose" option is specified. */
public boolean verbose;
/** If the "-quiet" option is specified. */
public boolean quiet;
/** If the -readOnly option is specified. */
public boolean readOnly;
/** No file header comment (to be more friendly with diff.) */
public boolean noFileHeader;
/**
* Check the source schemas with extra scrutiny.
* The exact meaning depends on the schema language.
*/
public boolean strictCheck =true;
/**
* If -explicit-annotation option is specified.
* <p>
* This generates code that works around issues specific to 1.4 runtime.
*/
public boolean runtime14 = false;
/**
* If true, try to resolve name conflicts automatically by assigning mechanical numbers.
*/
public boolean automaticNameConflictResolution = false;
/**
* strictly follow the compatibility rules and reject schemas that
* contain features from App. E.2, use vendor binding extensions
*/
public static final int STRICT = 1;
/**
* loosely follow the compatibility rules and allow the use of vendor
* binding extensions
*/
public static final int EXTENSION = 2;
/**
* this switch determines how carefully the compiler will follow
* the compatibility rules in the spec. Either <code>STRICT</code>
* or <code>EXTENSION</code>.
*/
public int compatibilityMode = STRICT;
public boolean isExtensionMode() {
return compatibilityMode==EXTENSION;
}
/**
* Generates output for the specified version of the runtime.
*/
public SpecVersion target = SpecVersion.LATEST;
private boolean is2_2 = true;
public Options() {
if (is2_2) {
try {
Class.forName("javax.xml.bind.JAXBPermission");
} catch (ClassNotFoundException cnfe) {
is2_2 = false;
}
if (!is2_2) {
target = SpecVersion.V2_1;
} else {
target = SpecVersion.LATEST;
}
}
}
/**
* Target directory when producing files.
* <p>
* This field is not used when XJC is driven through the XJC API.
* Plugins that need to generate extra files should do so by using
* {@link JPackage#addResourceFile(JResourceFile)}.
*/
public File targetDir = new File(".");
/**
* Actually stores {@link CatalogResolver}, but the field
* type is made to {@link EntityResolver} so that XJC can be
* used even if resolver.jar is not available in the classpath.
*/
public EntityResolver entityResolver = null;
/**
* Type of input schema language. One of the <code>SCHEMA_XXX</code>
* constants.
*/
private Language schemaLanguage = null;
/**
* The -p option that should control the default Java package that
* will contain the generated code. Null if unspecified.
*/
public String defaultPackage = null;
/**
* Similar to the -p option, but this one works with a lower priority,
* and customizations overrides this. Used by JAX-RPC.
*/
public String defaultPackage2 = null;
/**
* Input schema files as a list of {@link InputSource}s.
*/
private final List<InputSource> grammars = new ArrayList<InputSource>();
private final List<InputSource> bindFiles = new ArrayList<InputSource>();
// Proxy setting.
private String proxyHost = null;
private String proxyPort = null;
private String proxyUser = null;
private String proxyPassword = null;
/**
* {@link Plugin}s that are enabled in this compilation.
*/
public final List<Plugin> activePlugins = new ArrayList<Plugin>();
/**
* All discovered {@link Plugin}s.
* This is lazily parsed, so that we can take '-cp' option into account.
*
* @see #getAllPlugins()
*/
private List<Plugin> allPlugins;
/**
* Set of URIs that plug-ins recognize as extension bindings.
*/
public final Set<String> pluginURIs = new HashSet<String>();
/**
* This allocator has the final say on deciding the class name.
*/
public ClassNameAllocator classNameAllocator;
/**
* This switch controls whether or not xjc will generate package level annotations
*/
public boolean packageLevelAnnotations = true;
/**
* This {@link FieldRendererFactory} determines how the fields are generated.
*/
private FieldRendererFactory fieldRendererFactory = new FieldRendererFactory();
/**
* Used to detect if two {@link Plugin}s try to overwrite {@link #fieldRendererFactory}.
*/
private Plugin fieldRendererFactoryOwner = null;
/**
* If this is non-null, we use this {@link NameConverter} over the one
* given in the schema/binding.
*/
private NameConverter nameConverter = null;
/**
* Used to detect if two {@link Plugin}s try to overwrite {@link #nameConverter}.
*/
private Plugin nameConverterOwner = null;
/**
* Gets the active {@link FieldRendererFactory} that shall be used to build {@link Model}.
*
* @return always non-null.
*/
public FieldRendererFactory getFieldRendererFactory() {
return fieldRendererFactory;
}
/**
* Sets the {@link FieldRendererFactory}.
*
* <p>
* This method is for plugins to call to set a custom {@link FieldRendererFactory}.
*
* @param frf
* The {@link FieldRendererFactory} to be installed. Must not be null.
* @param owner
* Identifies the plugin that owns this {@link FieldRendererFactory}.
* When two {@link Plugin}s try to call this method, this allows XJC
* to report it as a user-friendly error message.
*
* @throws BadCommandLineException
* If a conflit happens, this exception carries a user-friendly error
* message, indicating a conflict.
*/
public void setFieldRendererFactory(FieldRendererFactory frf, Plugin owner) throws BadCommandLineException {
// since this method is for plugins, make it bit more fool-proof than usual
if(frf==null)
throw new IllegalArgumentException();
if(fieldRendererFactoryOwner!=null) {
throw new BadCommandLineException(
Messages.format(Messages.FIELD_RENDERER_CONFLICT,
fieldRendererFactoryOwner.getOptionName(),
owner.getOptionName() ));
}
this.fieldRendererFactoryOwner = owner;
this.fieldRendererFactory = frf;
}
/**
* Gets the active {@link NameConverter} that shall be used to build {@link Model}.
*
* @return can be null, in which case it's up to the binding.
*/
public NameConverter getNameConverter() {
return nameConverter;
}
/**
* Sets the {@link NameConverter}.
*
* <p>
* This method is for plugins to call to set a custom {@link NameConverter}.
*
* @param nc
* The {@link NameConverter} to be installed. Must not be null.
* @param owner
* Identifies the plugin that owns this {@link NameConverter}.
* When two {@link Plugin}s try to call this method, this allows XJC
* to report it as a user-friendly error message.
*
* @throws BadCommandLineException
* If a conflit happens, this exception carries a user-friendly error
* message, indicating a conflict.
*/
public void setNameConverter(NameConverter nc, Plugin owner) throws BadCommandLineException {
// since this method is for plugins, make it bit more fool-proof than usual
if(nc==null)
throw new IllegalArgumentException();
if(nameConverter!=null) {
throw new BadCommandLineException(
Messages.format(Messages.NAME_CONVERTER_CONFLICT,
nameConverterOwner.getOptionName(),
owner.getOptionName() ));
}
this.nameConverterOwner = owner;
this.nameConverter = nc;
}
/**
* Gets all the {@link Plugin}s discovered so far.
*
* <p>
* A plugins are enumerated when this method is called for the first time,
* by taking {@link #classpaths} into account. That means
* "-cp plugin.jar" has to come before you specify options to enable it.
*/
public List<Plugin> getAllPlugins() {
if(allPlugins==null) {
allPlugins = new ArrayList<Plugin>();
ClassLoader ucl = getUserClassLoader(getClass().getClassLoader());
for( Plugin aug : findServices(Plugin.class,ucl) )
allPlugins.add(aug);
}
return allPlugins;
}
public Language getSchemaLanguage() {
if( schemaLanguage==null)
schemaLanguage = guessSchemaLanguage();
return schemaLanguage;
}
public void setSchemaLanguage(Language _schemaLanguage) {
this.schemaLanguage = _schemaLanguage;
}
/** Input schema files. */
public InputSource[] getGrammars() {
return grammars.toArray(new InputSource[grammars.size()]);
}
/**
* Adds a new input schema.
*/
public void addGrammar( InputSource is ) {
grammars.add(absolutize(is));
}
private InputSource fileToInputSource( File source ) {
try {
String url = source.toURL().toExternalForm();
return new InputSource(Util.escapeSpace(url));
} catch (MalformedURLException e) {
return new InputSource(source.getPath());
}
}
public void addGrammar( File source ) {
addGrammar(fileToInputSource(source));
}
/**
* Recursively scan directories and add all XSD files in it.
*/
public void addGrammarRecursive( File dir ) {
addRecursive(dir,".xsd",grammars);
}
private void addRecursive( File dir, String suffix, List<InputSource> result ) {
File[] files = dir.listFiles();
if(files==null) return; // work defensively
for( File f : files ) {
if(f.isDirectory())
addRecursive(f,suffix,result);
else
if(f.getPath().endsWith(suffix))
result.add(absolutize(fileToInputSource(f)));
}
}
private InputSource absolutize(InputSource is) {
// absolutize all the system IDs in the input,
// so that we can map system IDs to DOM trees.
try {
URL baseURL = new File(".").getCanonicalFile().toURL();
is.setSystemId( new URL(baseURL,is.getSystemId()).toExternalForm() );
} catch( IOException e ) {
// ignore
}
return is;
}
/** Input external binding files. */
public InputSource[] getBindFiles() {
return bindFiles.toArray(new InputSource[bindFiles.size()]);
}
/**
* Adds a new binding file.
*/
public void addBindFile( InputSource is ) {
bindFiles.add(absolutize(is));
}
/**
* Adds a new binding file.
*/
public void addBindFile( File bindFile ) {
bindFiles.add(fileToInputSource(bindFile));
}
/**
* Recursively scan directories and add all ".xjb" files in it.
*/
public void addBindFileRecursive( File dir ) {
addRecursive(dir,".xjb",bindFiles);
}
public final List<URL> classpaths = new ArrayList<URL>();
/**
* Gets a classLoader that can load classes specified via the
* -classpath option.
*/
public URLClassLoader getUserClassLoader( ClassLoader parent ) {
return new URLClassLoader(
classpaths.toArray(new URL[classpaths.size()]),parent);
}
/**
* Parses an option <code>args[i]</code> and return
* the number of tokens consumed.
*
* @return
* 0 if the argument is not understood. Returning 0
* will let the caller report an error.
* @exception BadCommandLineException
* If the callee wants to provide a custom message for an error.
*/
public int parseArgument( String[] args, int i ) throws BadCommandLineException {
if (args[i].equals("-classpath") || args[i].equals("-cp")) {
String a = requireArgument(args[i], args, ++i);
for (String p : a.split(File.pathSeparator)) {
File file = new File(p);
try {
classpaths.add(file.toURL());
} catch (MalformedURLException e) {
throw new BadCommandLineException(
Messages.format(Messages.NOT_A_VALID_FILENAME,file),e);
}
}
return 2;
}
if (args[i].equals("-d")) {
targetDir = new File(requireArgument("-d",args,++i));
if( !targetDir.exists() )
throw new BadCommandLineException(
Messages.format(Messages.NON_EXISTENT_DIR,targetDir));
return 2;
}
if (args[i].equals("-readOnly")) {
readOnly = true;
return 1;
}
if (args[i].equals("-p")) {
defaultPackage = requireArgument("-p",args,++i);
if(defaultPackage.length()==0) { // user specified default package
// there won't be any package to annotate, so disable them
// automatically as a usability feature
packageLevelAnnotations = false;
}
return 2;
}
if (args[i].equals("-debug")) {
debugMode = true;
verbose = true;
return 1;
}
if (args[i].equals("-nv")) {
strictCheck = false;
return 1;
}
if( args[i].equals("-npa")) {
packageLevelAnnotations = false;
return 1;
}
if( args[i].equals("-no-header")) {
noFileHeader = true;
return 1;
}
if (args[i].equals("-verbose")) {
verbose = true;
return 1;
}
if (args[i].equals("-quiet")) {
quiet = true;
return 1;
}
if (args[i].equals("-XexplicitAnnotation")) {
runtime14 = true;
return 1;
}
if (args[i].equals("-XautoNameResolution")) {
automaticNameConflictResolution = true;
return 1;
}
if (args[i].equals("-b")) {
addFile(requireArgument("-b",args,++i),bindFiles,".xjb");
return 2;
}
if (args[i].equals("-dtd")) {
schemaLanguage = Language.DTD;
return 1;
}
if (args[i].equals("-relaxng")) {
schemaLanguage = Language.RELAXNG;
return 1;
}
if (args[i].equals("-relaxng-compact")) {
schemaLanguage = Language.RELAXNG_COMPACT;
return 1;
}
if (args[i].equals("-xmlschema")) {
schemaLanguage = Language.XMLSCHEMA;
return 1;
}
if (args[i].equals("-wsdl")) {
schemaLanguage = Language.WSDL;
return 1;
}
if (args[i].equals("-extension")) {
compatibilityMode = EXTENSION;
return 1;
}
if (args[i].equals("-target")) {
String token = requireArgument("-target",args,++i);
target = SpecVersion.parse(token);
if(target==null)
throw new BadCommandLineException(Messages.format(Messages.ILLEGAL_TARGET_VERSION,token));
return 2;
}
if (args[i].equals("-httpproxyfile")) {
if (i == args.length - 1 || args[i + 1].startsWith("-")) {
throw new BadCommandLineException(
Messages.format(Messages.MISSING_PROXYFILE));
}
File file = new File(args[++i]);
if(!file.exists()) {
throw new BadCommandLineException(
Messages.format(Messages.NO_SUCH_FILE,file));
}
try {
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"));
parseProxy(in.readLine());
in.close();
} catch (IOException e) {
throw new BadCommandLineException(
Messages.format(Messages.FAILED_TO_PARSE,file,e.getMessage()),e);
}
return 2;
}
if (args[i].equals("-httpproxy")) {
if (i == args.length - 1 || args[i + 1].startsWith("-")) {
throw new BadCommandLineException(
Messages.format(Messages.MISSING_PROXY));
}
parseProxy(args[++i]);
return 2;
}
if (args[i].equals("-host")) {
proxyHost = requireArgument("-host",args,++i);
return 2;
}
if (args[i].equals("-port")) {
proxyPort = requireArgument("-port",args,++i);
return 2;
}
if( args[i].equals("-catalog") ) {
// use Sun's "XML Entity and URI Resolvers" by Norman Walsh
// to resolve external entities.
// http://www.sun.com/xml/developers/resolver/
File catalogFile = new File(requireArgument("-catalog",args,++i));
try {
addCatalog(catalogFile);
} catch (IOException e) {
throw new BadCommandLineException(
Messages.format(Messages.FAILED_TO_PARSE,catalogFile,e.getMessage()),e);
}
return 2;
}
if (args[i].equals("-source")) {
String version = requireArgument("-source",args,++i);
//For source 1.0 the 1.0 Driver is loaded
//Hence anything other than 2.0 is defaulted to
//2.0
if( !version.equals("2.0") && !version.equals("2.1") )
throw new BadCommandLineException(
Messages.format(Messages.DEFAULT_VERSION));
return 2;
}
if( args[i].equals("-Xtest-class-name-allocator") ) {
classNameAllocator = new ClassNameAllocator() {
public String assignClassName(String packageName, String className) {
System.out.printf("assignClassName(%s,%s)\n",packageName,className);
return className+"_Type";
}
};
return 1;
}
// see if this is one of the extensions
for( Plugin plugin : getAllPlugins() ) {
try {
if( ('-'+plugin.getOptionName()).equals(args[i]) ) {
activePlugins.add(plugin);
plugin.onActivated(this);
pluginURIs.addAll(plugin.getCustomizationURIs());
// give the plugin a chance to parse arguments to this option.
// this is new in 2.1, and due to the backward compatibility reason,
// if plugin didn't understand it, we still return 1 to indicate
// that this option is consumed.
int r = plugin.parseArgument(this,args,i);
if(r!=0)
return r;
else
return 1;
}
int r = plugin.parseArgument(this,args,i);
if(r!=0) return r;
} catch (IOException e) {
throw new BadCommandLineException(e.getMessage(),e);
}
}
return 0; // unrecognized
}
private void parseProxy(String text) throws BadCommandLineException {
// syntax is [user[:password]@]proxyHost:proxyPort
String token = "([^@:]+)";
Pattern p = Pattern.compile("(?:"+token+"(?:\\:"+token+")?\\@)?"+token+"(?:\\:"+token+")");
Matcher matcher = p.matcher(text);
if(!matcher.matches())
throw new BadCommandLineException(Messages.format(Messages.ILLEGAL_PROXY,text));
proxyUser = matcher.group(1);
proxyPassword = matcher.group(2);
proxyHost = matcher.group(3);
proxyPort = matcher.group(4);
try {
Integer.valueOf(proxyPort);
} catch (NumberFormatException e) {
throw new BadCommandLineException(Messages.format(Messages.ILLEGAL_PROXY,text));
}
}
/**
* Obtains an operand and reports an error if it's not there.
*/
public String requireArgument(String optionName, String[] args, int i) throws BadCommandLineException {
if (i == args.length || args[i].startsWith("-")) {
throw new BadCommandLineException(
Messages.format(Messages.MISSING_OPERAND,optionName));
}
return args[i];
}
/**
* Parses a token to a file (or a set of files)
* and add them as {@link InputSource} to the specified list.
*
* @param suffix
* If the given token is a directory name, we do a recusive search
* and find all files that have the given suffix.
*/
private void addFile(String name, List<InputSource> target, String suffix) throws BadCommandLineException {
Object src;
try {
src = Util.getFileOrURL(name);
} catch (IOException e) {
throw new BadCommandLineException(
Messages.format(Messages.NOT_A_FILE_NOR_URL,name));
}
if(src instanceof URL) {
target.add(absolutize(new InputSource(Util.escapeSpace(((URL)src).toExternalForm()))));
} else {
File fsrc = (File)src;
if(fsrc.isDirectory()) {
addRecursive(fsrc,suffix,target);
} else {
target.add(absolutize(fileToInputSource(fsrc)));
}
}
}
/**
* Adds a new catalog file.
*/
public void addCatalog(File catalogFile) throws IOException {
if(entityResolver==null) {
CatalogManager.getStaticManager().setIgnoreMissingProperties(true);
entityResolver = new CatalogResolver(true);
}
((CatalogResolver)entityResolver).getCatalog().parseCatalog(catalogFile.getPath());
}
/**
* Parses arguments and fill fields of this object.
*
* @exception BadCommandLineException
* thrown when there's a problem in the command-line arguments
*/
public void parseArguments( String[] args ) throws BadCommandLineException {
for (int i = 0; i < args.length; i++) {
if(args[i].length()==0)
throw new BadCommandLineException();
if (args[i].charAt(0) == '-') {
int j = parseArgument(args,i);
if(j==0)
throw new BadCommandLineException(
Messages.format(Messages.UNRECOGNIZED_PARAMETER, args[i]));
i += (j-1);
} else {
if(args[i].endsWith(".jar"))
scanEpisodeFile(new File(args[i]));
else
addFile(args[i],grammars,".xsd");
}
}
// configure proxy
if (proxyHost != null || proxyPort != null) {
if (proxyHost != null && proxyPort != null) {
System.setProperty("http.proxyHost", proxyHost);
System.setProperty("http.proxyPort", proxyPort);
System.setProperty("https.proxyHost", proxyHost);
System.setProperty("https.proxyPort", proxyPort);
} else if (proxyHost == null) {
throw new BadCommandLineException(
Messages.format(Messages.MISSING_PROXYHOST));
} else {
throw new BadCommandLineException(
Messages.format(Messages.MISSING_PROXYPORT));
}
if(proxyUser!=null)
System.setProperty("http.proxyUser", proxyUser);
if(proxyPassword!=null)
System.setProperty("http.proxyPassword", proxyPassword);
}
if (grammars.size() == 0)
throw new BadCommandLineException(
Messages.format(Messages.MISSING_GRAMMAR));
if( schemaLanguage==null )
schemaLanguage = guessSchemaLanguage();
// if(target==SpecVersion.V2_2 && !isExtensionMode())
// throw new BadCommandLineException(
// "Currently 2.2 is still not finalized yet, so using it requires the -extension switch." +
// "NOTE THAT 2.2 SPEC MAY CHANGE BEFORE IT BECOMES FINAL.");
if(pluginLoadFailure!=null)
throw new BadCommandLineException(
Messages.format(Messages.PLUGIN_LOAD_FAILURE,pluginLoadFailure));
}
/**
* Finds the <tt>META-INF/sun-jaxb.episode</tt> file to add as a binding customization.
*/
public void scanEpisodeFile(File jar) throws BadCommandLineException {
try {
URLClassLoader ucl = new URLClassLoader(new URL[]{jar.toURL()});
Enumeration<URL> resources = ucl.findResources("META-INF/sun-jaxb.episode");
while (resources.hasMoreElements()) {
URL url = resources.nextElement();
addBindFile(new InputSource(url.toExternalForm()));
}
} catch (IOException e) {
throw new BadCommandLineException(
Messages.format(Messages.FAILED_TO_LOAD,jar,e.getMessage()), e);
}
}
/**
* Guesses the schema language.
*/
public Language guessSchemaLanguage() {
// otherwise, use the file extension.
// not a good solution, but very easy.
if ((grammars != null) && (grammars.size() > 0)) {
String name = grammars.get(0).getSystemId().toLowerCase();
if (name.endsWith(".rng"))
return Language.RELAXNG;
if (name.endsWith(".rnc"))
return Language.RELAXNG_COMPACT;
if (name.endsWith(".dtd"))
return Language.DTD;
if (name.endsWith(".wsdl"))
return Language.WSDL;
}
// by default, assume XML Schema
return Language.XMLSCHEMA;
}
/**
* Creates a configured CodeWriter that produces files into the specified directory.
*/
public CodeWriter createCodeWriter() throws IOException {
return createCodeWriter(new FileCodeWriter( targetDir, readOnly ));
}
/**
* Creates a configured CodeWriter that produces files into the specified directory.
*/
public CodeWriter createCodeWriter( CodeWriter core ) {
if(noFileHeader)
return core;
return new PrologCodeWriter( core,getPrologComment() );
}
/**
* Gets the string suitable to be used as the prolog comment baked into artifacts.
* This is the string like "This file was generated by the JAXB RI on YYYY/mm/dd..."
*/
public String getPrologComment() {
// generate format syntax: <date> 'at' <time>
String format =
Messages.format(Messages.DATE_FORMAT)
+ " '"
+ Messages.format(Messages.AT)
+ "' "
+ Messages.format(Messages.TIME_FORMAT);
SimpleDateFormat dateFormat = new SimpleDateFormat(format);
return Messages.format(
Messages.FILE_PROLOG_COMMENT,
dateFormat.format(new Date()));
}
/**
* If a plugin failed to load, report.
*/
private static String pluginLoadFailure;
/**
* Looks for all "META-INF/services/[className]" files and
* create one instance for each class name found inside this file.
*/
private static <T> T[] findServices( Class<T> clazz, ClassLoader classLoader ) {
// if true, print debug output
final boolean debug = com.sun.tools.internal.xjc.util.Util.getSystemProperty(Options.class,"findServices")!=null;
// if we are running on Mustang or Dolphin, use ServiceLoader
// so that we can take advantage of JSR-277 module system.
try {
Class<?> serviceLoader = Class.forName("java.util.ServiceLoader");
if(debug)
System.out.println("Using java.util.ServiceLoader");
Iterable<T> itr = (Iterable<T>)serviceLoader.getMethod("load",Class.class,ClassLoader.class).invoke(null,clazz,classLoader);
List<T> r = new ArrayList<T>();
for (T t : itr)
r.add(t);
return r.toArray((T[])Array.newInstance(clazz,r.size()));
} catch (ClassNotFoundException e) {
// fall through
} catch (IllegalAccessException e) {
Error x = new IllegalAccessError();
x.initCause(e);
throw x;
} catch (InvocationTargetException e) {
Throwable x = e.getTargetException();
if (x instanceof RuntimeException)
throw (RuntimeException) x;
if (x instanceof Error)
throw (Error) x;
throw new Error(x);
} catch (NoSuchMethodException e) {
Error x = new NoSuchMethodError();
x.initCause(e);
throw x;
}
String serviceId = "META-INF/services/" + clazz.getName();
// used to avoid creating the same instance twice
Set<String> classNames = new HashSet<String>();
if(debug) {
System.out.println("Looking for "+serviceId+" for add-ons");
}
// try to find services in CLASSPATH
try {
Enumeration<URL> e = classLoader.getResources(serviceId);
if(e==null) return (T[])Array.newInstance(clazz,0);
ArrayList<T> a = new ArrayList<T>();
while(e.hasMoreElements()) {
URL url = e.nextElement();
BufferedReader reader=null;
if(debug) {
System.out.println("Checking "+url+" for an add-on");
}
try {
reader = new BufferedReader(new InputStreamReader(url.openStream()));
String impl;
while((impl = reader.readLine())!=null ) {
// try to instanciate the object
impl = impl.trim();
if(classNames.add(impl)) {
Class implClass = classLoader.loadClass(impl);
if(!clazz.isAssignableFrom(implClass)) {
pluginLoadFailure = impl+" is not a subclass of "+clazz+". Skipping";
if(debug)
System.out.println(pluginLoadFailure);
continue;
}
if(debug) {
System.out.println("Attempting to instanciate "+impl);
}
a.add(clazz.cast(implClass.newInstance()));
}
}
reader.close();
} catch( Exception ex ) {
// let it go.
StringWriter w = new StringWriter();
ex.printStackTrace(new PrintWriter(w));
pluginLoadFailure = w.toString();
if(debug) {
System.out.println(pluginLoadFailure);
}
if( reader!=null ) {
try {
reader.close();
} catch( IOException ex2 ) {
// ignore
}
}
}
}
return a.toArray((T[])Array.newInstance(clazz,a.size()));
} catch( Throwable e ) {
// ignore any error
StringWriter w = new StringWriter();
e.printStackTrace(new PrintWriter(w));
pluginLoadFailure = w.toString();
if(debug) {
System.out.println(pluginLoadFailure);
}
return (T[])Array.newInstance(clazz,0);
}
}
// this is a convenient place to expose the build version to xjc plugins
public static String getBuildID() {
return Messages.format(Messages.BUILD_ID);
}
}