changeset 26:dff2df398817 jdk6-b14

6775264: Changes for openjdk6 build 14 6592792: Add com.sun.xml.internal to the "package.access" property in $JAVA_HOME/lib/security/java.security Summary: Final b14 state (as defined by the source bundle) Reviewed-by: darcy
author ohair
date Fri, 30 Jan 2009 17:21:27 -0800
parents e5058f37e1e1
children 08c667c9edc5
files src/share/classes/com/sun/xml/internal/ws/spi/ProviderImpl.java src/share/classes/javax/xml/bind/ContextFinder.java src/share/classes/javax/xml/ws/spi/FactoryFinder.java src/share/classes/org/relaxng/datatype/Datatype.java src/share/classes/org/relaxng/datatype/DatatypeBuilder.java src/share/classes/org/relaxng/datatype/DatatypeException.java src/share/classes/org/relaxng/datatype/DatatypeLibrary.java src/share/classes/org/relaxng/datatype/DatatypeLibraryFactory.java src/share/classes/org/relaxng/datatype/DatatypeStreamingValidator.java src/share/classes/org/relaxng/datatype/ValidationContext.java src/share/classes/org/relaxng/datatype/helpers/DatatypeLibraryLoader.java src/share/classes/org/relaxng/datatype/helpers/ParameterlessDatatypeBuilder.java src/share/classes/org/relaxng/datatype/helpers/StreamingValidatorImpl.java
diffstat 13 files changed, 1170 insertions(+), 33 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/classes/com/sun/xml/internal/ws/spi/ProviderImpl.java	Fri Jan 30 17:16:58 2009 -0800
+++ b/src/share/classes/com/sun/xml/internal/ws/spi/ProviderImpl.java	Fri Jan 30 17:21:27 2009 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2005-2008 Sun Microsystems, Inc.  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
@@ -56,6 +56,8 @@
 import javax.xml.ws.spi.ServiceDelegate;
 import javax.xml.ws.wsaddressing.W3CEndpointReference;
 import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
 import java.util.List;
 
 /**
@@ -94,14 +96,20 @@
         return endpoint;
     }
 
-    public EndpointReference readEndpointReference(Source eprInfoset) {
-        Unmarshaller unmarshaller;
-        try {
-            unmarshaller = eprjc.createUnmarshaller();
-            return (EndpointReference) unmarshaller.unmarshal(eprInfoset);
-        } catch (JAXBException e) {
-            throw new WebServiceException("Error creating Marshaller or marshalling.", e);
-        }
+    public EndpointReference readEndpointReference(final Source eprInfoset) {
+        // EPR constructors are private, so we need privilege escalation.
+        // this unmarshalling can only access instances of a fixed, known set of classes,
+        // so doing that shouldn't introduce security vulnerability.
+        return AccessController.doPrivileged(new PrivilegedAction<EndpointReference>() {
+            public EndpointReference run() {
+                try {
+                    Unmarshaller unmarshaller = eprjc.createUnmarshaller();
+                    return (EndpointReference) unmarshaller.unmarshal(eprInfoset);
+                } catch (JAXBException e) {
+                    throw new WebServiceException("Error creating Marshaller or marshalling.", e);
+                }
+            }
+        });
     }
 
     public <T> T getPort(EndpointReference endpointReference, Class<T> clazz, WebServiceFeature... webServiceFeatures) {
@@ -185,10 +193,17 @@
     }
 
     private static JAXBContext getEPRJaxbContext() {
-        try {
-            return JAXBContext.newInstance(MemberSubmissionEndpointReference.class, W3CEndpointReference.class);
-        } catch (JAXBException e) {
-            throw new WebServiceException("Error creating JAXBContext for W3CEndpointReference. ", e);
-        }
+        // EPRs have package and private fields, so we need privilege escalation.
+        // this access only fixed, known set of classes, so doing that
+        // shouldn't introduce security vulnerability.
+        return AccessController.doPrivileged(new PrivilegedAction<JAXBContext>() {
+            public JAXBContext run() {
+                try {
+                    return JAXBContext.newInstance(MemberSubmissionEndpointReference.class, W3CEndpointReference.class);
+                } catch (JAXBException e) {
+                    throw new WebServiceException("Error creating JAXBContext for W3CEndpointReference. ", e);
+                }
+            }
+        });
     }
 }
--- a/src/share/classes/javax/xml/bind/ContextFinder.java	Fri Jan 30 17:16:58 2009 -0800
+++ b/src/share/classes/javax/xml/bind/ContextFinder.java	Fri Jan 30 17:21:27 2009 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2005-2008 Sun Microsystems, Inc.  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
@@ -130,12 +130,7 @@
         throws JAXBException
     {
         try {
-            Class spiClass;
-            if (classLoader == null) {
-                spiClass = Class.forName(className);
-            } else {
-                spiClass = classLoader.loadClass(className);
-            }
+            Class spiClass = safeLoadClass(className,classLoader);
 
             /*
              * javax.xml.bind.context.factory points to a class which has a
@@ -207,11 +202,7 @@
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         Class spi;
         try {
-            logger.fine("Trying to load "+className);
-            if (cl != null)
-                spi = cl.loadClass(className);
-            else
-                spi = Class.forName(className);
+            spi = safeLoadClass(className,cl);
         } catch (ClassNotFoundException e) {
             throw new JAXBException(e);
         }
@@ -488,4 +479,31 @@
      * For this reason, we have to hard-code the class name into the API.
      */
     private static final String PLATFORM_DEFAULT_FACTORY_CLASS = "com.sun.xml.internal.bind.v2.ContextFactory";
+
+    /**
+     * Loads the class, provided that the calling thread has an access to the class being loaded.
+     */
+    private static Class safeLoadClass(String className, ClassLoader classLoader) throws ClassNotFoundException {
+        logger.fine("Trying to load "+className);
+        try {
+            // make sure that the current thread has an access to the package of the given name.
+            SecurityManager s = System.getSecurityManager();
+            if (s != null) {
+                int i = className.lastIndexOf('.');
+                if (i != -1) {
+                    s.checkPackageAccess(className.substring(0,i));
+                }
+            }
+
+            if (classLoader == null)
+                return Class.forName(className);
+            else
+                return classLoader.loadClass(className);
+        } catch (SecurityException se) {
+            // anyone can access the platform default factory class without permission
+            if (PLATFORM_DEFAULT_FACTORY_CLASS.equals(className))
+                return Class.forName(className);
+            throw se;
+        }
+    }
 }
--- a/src/share/classes/javax/xml/ws/spi/FactoryFinder.java	Fri Jan 30 17:16:58 2009 -0800
+++ b/src/share/classes/javax/xml/ws/spi/FactoryFinder.java	Fri Jan 30 17:21:27 2009 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2005-2008 Sun Microsystems, Inc.  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
@@ -47,12 +47,7 @@
                                       ClassLoader classLoader)
     {
         try {
-            Class spiClass;
-            if (classLoader == null) {
-                spiClass = Class.forName(className);
-            } else {
-                spiClass = classLoader.loadClass(className);
-            }
+            Class spiClass = safeLoadClass(className, classLoader);
             return spiClass.newInstance();
         } catch (ClassNotFoundException x) {
             throw new WebServiceException(
@@ -152,4 +147,33 @@
 
         return newInstance(fallbackClassName, classLoader);
     }
+
+
+    private static final String PLATFORM_DEFAULT_FACTORY_CLASS = "com.sun.xml.internal.ws.spi.ProviderImpl";
+
+    /**
+     * Loads the class, provided that the calling thread has an access to the class being loaded.
+     */
+    private static Class safeLoadClass(String className, ClassLoader classLoader) throws ClassNotFoundException {
+        try {
+            // make sure that the current thread has an access to the package of the given name.
+            SecurityManager s = System.getSecurityManager();
+            if (s != null) {
+                int i = className.lastIndexOf('.');
+                if (i != -1) {
+                    s.checkPackageAccess(className.substring(0,i));
+                }
+            }
+
+            if (classLoader == null)
+                return Class.forName(className);
+            else
+                return classLoader.loadClass(className);
+        } catch (SecurityException se) {
+            // anyone can access the platform default factory class without permission
+            if (PLATFORM_DEFAULT_FACTORY_CLASS.equals(className))
+                return Class.forName(className);
+            throw se;
+        }
+    }
 }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/Datatype.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,262 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * Datatype object.
+ *
+ * This object has the following functionality:
+ *
+ * <ol>
+ *  <li> functionality to identify a class of character sequences. This is
+ *       done through the isValid method.
+ *
+ *  <li> functionality to produce a "value object" from a character sequence and
+ *               context information.
+ *
+ *  <li> functionality to test the equality of two value objects.
+ * </ol>
+ *
+ * This interface also defines the createStreamingValidator method,
+ * which is intended to efficiently support the validation of
+ * large character sequences.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface Datatype {
+
+        /**
+         * Checks if the specified 'literal' matches this Datatype
+         * with respect to the current context.
+         *
+         * @param literal
+         *              the lexical representation to be checked.
+         * @param context
+         *              If this datatype is context-dependent
+         *              (i.e. the {@link #isContextDependent} method returns true),
+         *              then the caller must provide a non-null valid context object.
+         *              Otherwise, the caller can pass null.
+         *
+         * @return
+         *              true if the 'literal' is a member of this Datatype;
+         *              false if it's not a member of this Datatype.
+         */
+        boolean isValid( String literal, ValidationContext context );
+
+        /**
+         * Similar to the isValid method but throws an exception with diagnosis
+         * in case of errors.
+         *
+         * <p>
+         * If the specified 'literal' is a valid lexical representation for this
+         * datatype, then this method must return without throwing any exception.
+         * If not, the callee must throw an exception (with diagnosis message,
+         * if possible.)
+         *
+         * <p>
+         * The application can use this method to provide detailed error message
+         * to users. This method is kept separate from the isValid method to
+         * achieve higher performance during normal validation.
+         *
+         * @exception DatatypeException
+         *              If the given literal is invalid, then this exception is thrown.
+         *              If the callee supports error diagnosis, then the exception should
+         *              contain a diagnosis message.
+         */
+        void checkValid( String literal, ValidationContext context )
+                throws DatatypeException;
+
+        /**
+         * Creates an instance of a streaming validator for this type.
+         *
+         * <p>
+         * By using streaming validators instead of the isValid method,
+         * the caller can avoid keeping the entire string, which is
+         * sometimes quite big, in memory.
+         *
+         * @param context
+         *              If this datatype is context-dependent
+         *              (i.e. the {@link #isContextDependent} method returns true),
+         *              then the caller must provide a non-null valid context object.
+         *              Otherwise, the caller can pass null.
+         *              The callee may keep a reference to this context object
+         *              only while the returned streaming validator is being used.
+         */
+        DatatypeStreamingValidator createStreamingValidator( ValidationContext context );
+
+        /**
+         * Converts lexcial value and the current context to the corresponding
+         * value object.
+         *
+         * <p>
+         * The caller cannot generally assume that the value object is
+         * a meaningful Java object. For example, the caller cannot expect
+         * this method to return <code>java.lang.Number</code> type for
+         * the "integer" type of XML Schema Part 2.
+         *
+         * <p>
+         * Also, the caller cannot assume that the equals method and
+         * the hashCode method of the value object are consistent with
+         * the semantics of the datatype. For that purpose, the sameValue
+         * method and the valueHashCode method have to be used. Note that
+         * this means you cannot use classes like
+         * <code>java.util.Hashtable</code> to store the value objects.
+         *
+         * <p>
+         * The returned value object should be used solely for the sameValue
+         * and valueHashCode methods.
+         *
+         * @param context
+         *              If this datatype is context-dependent
+         *              (when the {@link #isContextDependent} method returns true),
+         *              then the caller must provide a non-null valid context object.
+         *              Otherwise, the caller can pass null.
+         *
+         * @return      null
+         *              when the given lexical value is not a valid lexical
+         *              value for this type.
+         */
+        Object createValue( String literal, ValidationContext context );
+
+        /**
+         * Tests the equality of two value objects which were originally
+         * created by the createValue method of this object.
+         *
+         * The behavior is undefined if objects not created by this type
+         * are passed. It is the caller's responsibility to ensure that
+         * value objects belong to this type.
+         *
+         * @return
+         *              true if two value objects are considered equal according to
+         *              the definition of this datatype; false if otherwise.
+         */
+        boolean sameValue( Object value1, Object value2 );
+
+
+        /**
+         * Computes the hash code for a value object,
+         * which is consistent with the sameValue method.
+         *
+         * @return
+         *              hash code for the specified value object.
+         */
+        int valueHashCode( Object value );
+
+
+
+
+        /**
+         * Indicates that the datatype doesn't have ID/IDREF semantics.
+         *
+         * This value is one of the possible return values of the
+         * {@link #getIdType} method.
+         */
+        public static final int ID_TYPE_NULL = 0;
+
+        /**
+         * Indicates that RELAX NG compatibility processors should
+         * treat this datatype as having ID semantics.
+         *
+         * This value is one of the possible return values of the
+         * {@link #getIdType} method.
+         */
+        public static final int ID_TYPE_ID = 1;
+
+        /**
+         * Indicates that RELAX NG compatibility processors should
+         * treat this datatype as having IDREF semantics.
+         *
+         * This value is one of the possible return values of the
+         * {@link #getIdType} method.
+         */
+        public static final int ID_TYPE_IDREF = 2;
+
+        /**
+         * Indicates that RELAX NG compatibility processors should
+         * treat this datatype as having IDREFS semantics.
+         *
+         * This value is one of the possible return values of the
+         * {@link #getIdType} method.
+         */
+        public static final int ID_TYPE_IDREFS = 3;
+
+        /**
+         * Checks if the ID/IDREF semantics is associated with this
+         * datatype.
+         *
+         * <p>
+         * This method is introduced to support the RELAX NG DTD
+         * compatibility spec. (Of course it's always free to use
+         * this method for other purposes.)
+         *
+         * <p>
+         * If you are implementing a datatype library and have no idea about
+         * the "RELAX NG DTD compatibility" thing, just return
+         * <code>ID_TYPE_NULL</code> is fine.
+         *
+         * @return
+         *              If this datatype doesn't have any ID/IDREF semantics,
+         *              it returns {@link #ID_TYPE_NULL}. If it has such a semantics
+         *              (for example, XSD:ID, XSD:IDREF and comp:ID type), then
+         *              it returns {@link #ID_TYPE_ID}, {@link #ID_TYPE_IDREF} or
+         *              {@link #ID_TYPE_IDREFS}.
+         */
+        public int getIdType();
+
+
+        /**
+         * Checks if this datatype may need a context object for
+         * the validation.
+         *
+         * <p>
+         * The callee must return true even when the context
+         * is not always necessary. (For example, the "QName" type
+         * doesn't need a context object when validating unprefixed
+         * string. But nonetheless QName must return true.)
+         *
+         * <p>
+         * XSD's <code>string</code> and <code>short</code> types
+         * are examples of context-independent datatypes.
+         * Its <code>QName</code> and <code>ENTITY</code> types
+         * are examples of context-dependent datatypes.
+         *
+         * <p>
+         * When a datatype is context-independent, then
+         * the {@link #isValid} method, the {@link #checkValid} method,
+         * the {@link #createStreamingValidator} method and
+         * the {@link #createValue} method can be called without
+         * providing a context object.
+         *
+         * @return
+         *              <b>true</b> if this datatype is context-dependent
+         *              (it needs a context object sometimes);
+         *
+         *              <b>false</b> if this datatype is context-<b>in</b>dependent
+         *              (it never needs a context object).
+         */
+        public boolean isContextDependent();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/DatatypeBuilder.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * Creates a user-defined type by adding parameters to
+ * the pre-defined type.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface DatatypeBuilder {
+
+        /**
+         * Adds a new parameter.
+         *
+         * @param name
+         *              The name of the parameter to be added.
+         * @param strValue
+         *              The raw value of the parameter. Caller may not normalize
+         *              this value because any white space is potentially significant.
+         * @param context
+         *              The context information which can be used by the callee to
+         *              acquire additional information. This context object is
+         *              valid only during this method call. The callee may not
+         *              keep a reference to this object.
+         * @exception   DatatypeException
+         *              When the given parameter is inappropriate for some reason.
+         *              The callee is responsible to recover from this error.
+         *              That is, the object should behave as if no such error
+         *              was occured.
+         */
+        void addParameter( String name, String strValue, ValidationContext context )
+                throws DatatypeException;
+
+        /**
+         * Derives a new Datatype from a Datatype by parameters that
+         * were already set through the addParameter method.
+         *
+         * @exception DatatypeException
+         *              DatatypeException must be thrown if the derivation is
+         *              somehow invalid. For example, a required parameter is missing,
+         *              etc. The exception should contain a diagnosis message
+         *              if possible.
+         */
+        Datatype createDatatype() throws DatatypeException;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/DatatypeException.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * Signals Datatype related exceptions.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public class DatatypeException extends Exception {
+
+        public DatatypeException( int index, String msg ) {
+                super(msg);
+                this.index = index;
+        }
+        public DatatypeException( String msg ) {
+                this(UNKNOWN,msg);
+        }
+        /**
+         * A constructor for those datatype libraries which don't support any
+         * diagnostic information at all.
+         */
+        public DatatypeException() {
+                this(UNKNOWN,null);
+        }
+
+
+        private final int index;
+
+        public static final int UNKNOWN = -1;
+
+        /**
+         * Gets the index of the content where the error occured.
+         * UNKNOWN can be returned to indicate that no index information
+         * is available.
+         */
+        public int getIndex() {
+                return index;
+        }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/DatatypeLibrary.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * A Datatype library
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface DatatypeLibrary {
+
+        /**
+         * Creates a new instance of DatatypeBuilder.
+         *
+         * The callee should throw a DatatypeException in case of an error.
+         *
+         * @param baseTypeLocalName
+         *              The local name of the base type.
+         *
+         * @return
+         *              A non-null valid datatype object.
+         */
+        DatatypeBuilder createDatatypeBuilder( String baseTypeLocalName )
+                throws DatatypeException;
+
+        /**
+         * Gets or creates a pre-defined type.
+         *
+         * This is just a short-cut of
+         * <code>createDatatypeBuilder(typeLocalName).createDatatype();</code>
+         *
+         * The callee should throw a DatatypeException in case of an error.
+         *
+         * @return
+         *              A non-null valid datatype object.
+         */
+        Datatype createDatatype( String typeLocalName ) throws DatatypeException;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/DatatypeLibraryFactory.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * Factory class for the DatatypeLibrary class.
+ *
+ * <p>
+ * The datatype library should provide the implementation of
+ * this interface if it wants to be found by the schema processors.
+ * The implementor also have to place a file in your jar file.
+ * See the reference datatype library implementation for detail.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface DatatypeLibraryFactory
+{
+        /**
+         * Creates a new instance of a DatatypeLibrary that supports
+         * the specified namespace URI.
+         *
+         * @return
+         *              <code>null</code> if the specified namespace URI is not
+         *              supported.
+         */
+        DatatypeLibrary createDatatypeLibrary( String namespaceURI );
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/DatatypeStreamingValidator.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * Datatype streaming validator.
+ *
+ * <p>
+ * The streaming validator is an optional feature that is useful for
+ * certain Datatypes. It allows the caller to incrementally provide
+ * the literal.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface DatatypeStreamingValidator {
+
+        /**
+         * Passes an additional fragment of the literal.
+         *
+         * <p>
+         * The application can call this method several times, then call
+         * the isValid method (or the checkValid method) to check the validity
+         * of the accumulated characters.
+         */
+        void addCharacters( char[] buf, int start, int len );
+
+        /**
+         * Tells if the accumulated literal is valid with respect to
+         * the underlying Datatype.
+         *
+         * @return
+         *              True if it is valid. False if otherwise.
+         */
+        boolean isValid();
+
+        /**
+         * Similar to the isValid method, but this method throws
+         * Exception (with possibly diagnostic information), instead of
+         * returning false.
+         *
+         * @exception DatatypeException
+         *              If the callee supports the diagnosis and the accumulated
+         *              literal is invalid, then this exception that possibly
+         *              contains diagnosis information is thrown.
+         */
+        void checkValid() throws DatatypeException;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/ValidationContext.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype;
+
+/**
+ * An interface that must be implemented by caller to
+ * provide context information that is necessary to
+ * perform validation of some Datatypes.
+ *
+ * @author <a href="mailto:jjc@jclark.com">James Clark</a>
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public interface ValidationContext {
+
+        /**
+         * Resolves a namespace prefix to the corresponding namespace URI.
+         *
+         * This method is used for validating the QName type, for example.
+         *
+         * <p>
+         * If the prefix is "" (empty string), it indicates
+         * an unprefixed value. The callee
+         * should resolve it as for an unprefixed
+         * element, rather than for an unprefixed attribute.
+         *
+         * <p>
+         * If the prefix is "xml", then the callee must resolve
+         * this prefix into "http://www.w3.org/XML/1998/namespace",
+         * as defined in the XML Namespaces Recommendation.
+         *
+         * @return
+         *              namespace URI of this prefix.
+         *              If the specified prefix is not declared,
+         *              the implementation must return null.
+         */
+        String resolveNamespacePrefix( String prefix );
+
+        /**
+         * Returns the base URI of the context.  The null string may be returned
+         * if no base URI is known.
+         */
+        String getBaseUri();
+
+        /**
+         * Checks if an unparsed entity is declared with the
+         * specified name.
+         *
+         * @return
+         *  true
+         *              if the DTD has an unparsed entity declaration for
+         *              the specified name.
+         *  false
+         *              otherwise.
+         */
+        boolean isUnparsedEntity( String entityName );
+
+        /**
+         * Checks if a notation is declared with the
+         * specified name.
+         *
+         * @return
+         *  true
+         *              if the DTD has a notation declaration for the specified name.
+         *  false
+         *              otherwise.
+         */
+        boolean isNotation( String notationName );
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/helpers/DatatypeLibraryLoader.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,262 @@
+/**
+ * Copyright (c) 2001, Thai Open Source Software Center Ltd
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *     Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ *     Neither the name of the Thai Open Source Software Center Ltd nor
+ *     the names of its contributors may be used to endorse or promote
+ *     products derived from this software without specific prior written
+ *     permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.relaxng.datatype.helpers;
+
+import org.relaxng.datatype.DatatypeLibraryFactory;
+import org.relaxng.datatype.DatatypeLibrary;
+import java.util.Enumeration;
+import java.util.NoSuchElementException;
+import java.util.Vector;
+import java.io.Reader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URL;
+
+/**
+ * Discovers the datatype library implementation from the classpath.
+ *
+ * <p>
+ * The call of the createDatatypeLibrary method finds an implementation
+ * from a given datatype library URI at run-time.
+ */
+public class DatatypeLibraryLoader implements DatatypeLibraryFactory {
+  private final Service service = new Service(DatatypeLibraryFactory.class);
+
+  public DatatypeLibrary createDatatypeLibrary(String uri) {
+    for (Enumeration e = service.getProviders();
+         e.hasMoreElements();) {
+      DatatypeLibraryFactory factory
+        = (DatatypeLibraryFactory)e.nextElement();
+      DatatypeLibrary library = factory.createDatatypeLibrary(uri);
+      if (library != null)
+        return library;
+    }
+    return null;
+  }
+
+        private static class Service {
+          private final Class serviceClass;
+          private final Enumeration configFiles;
+          private Enumeration classNames = null;
+          private final Vector providers = new Vector();
+          private Loader loader;
+
+          private class ProviderEnumeration implements Enumeration {
+            private int nextIndex = 0;
+
+            public boolean hasMoreElements() {
+              return nextIndex < providers.size() || moreProviders();
+            }
+
+            public Object nextElement() {
+              try {
+                return providers.elementAt(nextIndex++);
+              }
+              catch (ArrayIndexOutOfBoundsException e) {
+                throw new NoSuchElementException();
+              }
+            }
+          }
+
+          private static class Singleton implements Enumeration {
+            private Object obj;
+            private Singleton(Object obj) {
+              this.obj = obj;
+            }
+
+            public boolean hasMoreElements() {
+              return obj != null;
+            }
+
+            public Object nextElement() {
+              if (obj == null)
+                throw new NoSuchElementException();
+              Object tem = obj;
+              obj = null;
+              return tem;
+            }
+          }
+
+          // JDK 1.1
+          private static class Loader {
+            Enumeration getResources(String resName) {
+              ClassLoader cl = Loader.class.getClassLoader();
+              URL url;
+              if (cl == null)
+                url = ClassLoader.getSystemResource(resName);
+              else
+                url = cl.getResource(resName);
+              return new Singleton(url);
+            }
+
+            Class loadClass(String name) throws ClassNotFoundException {
+              return Class.forName(name);
+            }
+          }
+
+          // JDK 1.2+
+          private static class Loader2 extends Loader {
+            private ClassLoader cl;
+
+            Loader2() {
+              cl = Loader2.class.getClassLoader();
+              // If the thread context class loader has the class loader
+              // of this class as an ancestor, use the thread context class
+              // loader.  Otherwise, the thread context class loader
+              // probably hasn't been set up properly, so don't use it.
+              ClassLoader clt = Thread.currentThread().getContextClassLoader();
+              for (ClassLoader tem = clt; tem != null; tem = tem.getParent())
+                if (tem == cl) {
+                  cl = clt;
+                  break;
+                }
+            }
+
+            Enumeration getResources(String resName) {
+              try {
+                    return cl.getResources(resName);
+
+              }
+              catch (IOException e) {
+                return new Singleton(null);
+              }
+            }
+
+            Class loadClass(String name) throws ClassNotFoundException {
+              return Class.forName(name, true, cl);
+            }
+          }
+
+          public Service(Class cls) {
+            try {
+              loader = new Loader2();
+            }
+            catch (NoSuchMethodError e) {
+              loader = new Loader();
+            }
+            serviceClass = cls;
+            String resName = "META-INF/services/" + serviceClass.getName();
+            configFiles = loader.getResources(resName);
+          }
+
+          public Enumeration getProviders() {
+            return new ProviderEnumeration();
+          }
+
+          synchronized private boolean moreProviders() {
+            for (;;) {
+              while (classNames == null) {
+                if (!configFiles.hasMoreElements())
+                  return false;
+                classNames = parseConfigFile((URL)configFiles.nextElement());
+              }
+              while (classNames.hasMoreElements()) {
+                String className = (String)classNames.nextElement();
+                try {
+                  Class cls = loader.loadClass(className);
+                  Object obj = cls.newInstance();
+                  if (serviceClass.isInstance(obj)) {
+                    providers.addElement(obj);
+                    return true;
+                  }
+                }
+                catch (ClassNotFoundException e) { }
+                catch (InstantiationException e) { }
+                catch (IllegalAccessException e) { }
+                catch (LinkageError e) { }
+              }
+              classNames = null;
+            }
+          }
+
+          private static final int START = 0;
+          private static final int IN_NAME = 1;
+          private static final int IN_COMMENT = 2;
+
+          private static Enumeration parseConfigFile(URL url) {
+            try {
+              InputStream in = url.openStream();
+              Reader r;
+              try {
+                r = new InputStreamReader(in, "UTF-8");
+              }
+              catch (UnsupportedEncodingException e) {
+                r = new InputStreamReader(in, "UTF8");
+              }
+              r = new BufferedReader(r);
+              Vector tokens = new Vector();
+              StringBuffer tokenBuf = new StringBuffer();
+              int state = START;
+              for (;;) {
+                int n = r.read();
+                if (n < 0)
+                  break;
+                char c = (char)n;
+                switch (c) {
+                case '\r':
+                case '\n':
+                  state = START;
+                  break;
+                case ' ':
+                case '\t':
+                  break;
+                case '#':
+                  state = IN_COMMENT;
+                  break;
+                default:
+                  if (state != IN_COMMENT) {
+                    state = IN_NAME;
+                    tokenBuf.append(c);
+                  }
+                  break;
+                }
+                if (tokenBuf.length() != 0 && state != IN_NAME) {
+                  tokens.addElement(tokenBuf.toString());
+                  tokenBuf.setLength(0);
+                }
+              }
+              if (tokenBuf.length() != 0)
+                tokens.addElement(tokenBuf.toString());
+              return tokens.elements();
+            }
+            catch (IOException e) {
+              return null;
+            }
+          }
+        }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/helpers/ParameterlessDatatypeBuilder.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype.helpers;
+
+import org.relaxng.datatype.*;
+
+/**
+ * Dummy implementation of {@link DatatypeBuilder}.
+ *
+ * This implementation can be used for Datatypes which have no parameters.
+ * Any attempt to add parameters will be rejected.
+ *
+ * <p>
+ * Typical usage would be:
+ * <PRE><XMP>
+ * class MyDatatypeLibrary implements DatatypeLibrary {
+ *     ....
+ *     DatatypeBuilder createDatatypeBuilder( String typeName ) {
+ *         return new ParameterleessDatatypeBuilder(createDatatype(typeName));
+ *     }
+ *     ....
+ * }
+ * </XMP></PRE>
+ *
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public final class ParameterlessDatatypeBuilder implements DatatypeBuilder {
+
+        /** This type object is returned for the derive method. */
+        private final Datatype baseType;
+
+        public ParameterlessDatatypeBuilder( Datatype baseType ) {
+                this.baseType = baseType;
+        }
+
+        public void addParameter( String name, String strValue, ValidationContext context )
+                        throws DatatypeException {
+                throw new DatatypeException();
+        }
+
+        public Datatype createDatatype() throws DatatypeException {
+                return baseType;
+        }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/org/relaxng/datatype/helpers/StreamingValidatorImpl.java	Fri Jan 30 17:21:27 2009 -0800
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package org.relaxng.datatype.helpers;
+
+import org.relaxng.datatype.*;
+
+/**
+ * Dummy implementation of {@link DatatypeStreamingValidator}.
+ *
+ * <p>
+ * This implementation can be used as a quick hack when the performance
+ * of streaming validation is not important. And this implementation
+ * also shows you how to implement the DatatypeStreamingValidator interface.
+ *
+ * <p>
+ * Typical usage would be:
+ * <PRE><XMP>
+ * class MyDatatype implements Datatype {
+ *     ....
+ *     public DatatypeStreamingValidator createStreamingValidator( ValidationContext context ) {
+ *         return new StreamingValidatorImpl(this,context);
+ *     }
+ *     ....
+ * }
+ * </XMP></PRE>
+ *
+ * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
+ */
+public final class StreamingValidatorImpl implements DatatypeStreamingValidator {
+
+        /** This buffer accumulates characters. */
+        private final StringBuffer buffer = new StringBuffer();
+
+        /** Datatype obejct that creates this streaming validator. */
+        private final Datatype baseType;
+
+        /** The current context. */
+        private final ValidationContext context;
+
+        public void addCharacters( char[] buf, int start, int len ) {
+                // append characters to the current buffer.
+                buffer.append(buf,start,len);
+        }
+
+        public boolean isValid() {
+                return baseType.isValid(buffer.toString(),context);
+        }
+
+        public void checkValid() throws DatatypeException {
+                baseType.checkValid(buffer.toString(),context);
+        }
+
+        public StreamingValidatorImpl( Datatype baseType, ValidationContext context ) {
+                this.baseType = baseType;
+                this.context = context;
+        }
+}