jaxws/src/share/jaxws_classes/com/sun/tools/internal/xjc/Options.java
changeset 12009 4abb694f273a
child 16791 fe5141eabb0e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxws/src/share/jaxws_classes/com/sun/tools/internal/xjc/Options.java	Tue Mar 06 16:09:35 2012 -0800
@@ -0,0 +1,1048 @@
+/*
+ * Copyright (c) 1997, 2011, 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.Arrays;
+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 java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.charset.Charset;
+import java.nio.charset.IllegalCharsetNameException;
+import java.util.Locale;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+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 should 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;
+
+    /** When on, fixes getter/setter generation to match the Bean Introspection API */
+    public boolean enableIntrospection;
+
+    /** When on, generates content property for types with multiple xs:any derived elements (which is supposed to be correct behaviour) */
+    public boolean contentForWildcard;
+
+    /** Encoding to be used by generated java sources, null for platform default. */
+    public String encoding;
+
+    /**
+     * 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;
+    }
+
+    private static final Logger logger = com.sun.xml.internal.bind.Util.getClassLogger();
+
+    /**
+     * 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(SecureLoader.getClassClassLoader(getClass()));
+            allPlugins.addAll(Arrays.asList(findServices(Plugin.class,ucl)));
+        }
+
+        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 ) {
+            logger.log(Level.FINE, "{0}, {1}", new Object[]{is.getSystemId(), e.getLocalizedMessage()});
+        }
+        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("-enableIntrospection")) {
+            enableIntrospection = true;
+            return 1;
+        }
+        if (args[i].equals("-contentForWildcard")) {
+            contentForWildcard = 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;
+        }
+
+        if (args[i].equals("-encoding")) {
+            encoding = requireArgument("-encoding", args, ++i);
+            try {
+                if (!Charset.isSupported(encoding)) {
+                    throw new BadCommandLineException(
+                        Messages.format(Messages.UNSUPPORTED_ENCODING, encoding));
+                }
+            } catch (IllegalCharsetNameException icne) {
+                throw new BadCommandLineException(
+                    Messages.format(Messages.UNSUPPORTED_ENCODING, encoding));
+            }
+            return 2;
+        }
+
+        // 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.isEmpty())
+            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, encoding ));
+    }
+
+    /**
+     * 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, Locale.ENGLISH);
+
+        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);
+    }
+
+    public static String normalizeSystemId(String systemId) {
+        try {
+            systemId = new URI(systemId).normalize().toString();
+        } catch (URISyntaxException e) {
+            // leave the system ID untouched. In my experience URI is often too strict
+        }
+        return systemId;
+    }
+
+}