aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.xsom;
aoqi@0: 
aoqi@0: import org.relaxng.datatype.ValidationContext;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * String with in-scope namespace binding information.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * In a general case, text (PCDATA/attributes) that appear in XML schema
aoqi@0:  * cannot be correctly interpreted unless you also have in-scope namespace
aoqi@0:  * binding (a case in point is QName.) Therefore, it's convenient to
aoqi@0:  * handle the lexical representation and the in-scope namespace binding
aoqi@0:  * in a pair.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  */
aoqi@0: public final class XmlString {
aoqi@0:     /**
aoqi@0:      * Textual value. AKA lexical representation.
aoqi@0:      */
aoqi@0:     public final String value;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Used to resole in-scope namespace bindings.
aoqi@0:      */
aoqi@0:     public final ValidationContext context;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Creates a new {@link XmlString} from a lexical representation and in-scope namespaces.
aoqi@0:      */
aoqi@0:     public XmlString(String value, ValidationContext context) {
aoqi@0:         this.value = value;
aoqi@0:         this.context = context;
aoqi@0:         if(context==null)
aoqi@0:             throw new IllegalArgumentException();
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Creates a new {@link XmlString} with empty in-scope namespace bindings.
aoqi@0:      */
aoqi@0:     public XmlString(String value) {
aoqi@0:         this(value,NULL_CONTEXT);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Resolves a namespace prefix to the corresponding namespace URI.
aoqi@0:      *
aoqi@0:      * This method is used for resolving prefixes in the {@link #value}
aoqi@0:      * (such as when {@link #value} represents a QName type.)
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * If the prefix is "" (empty string), the method
aoqi@0:      * returns the default namespace URI.
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * If the prefix is "xml", then the method returns
aoqi@0:      * "http://www.w3.org/XML/1998/namespace",
aoqi@0:      * as defined in the XML Namespaces Recommendation.
aoqi@0:      *
aoqi@0:      * @return
aoqi@0:      *          namespace URI of this prefix.
aoqi@0:      *          If the specified prefix is not declared,
aoqi@0:      *          the implementation returns null.
aoqi@0:      */
aoqi@0:     public final String resolvePrefix(String prefix) {
aoqi@0:         return context.resolveNamespacePrefix(prefix);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String toString() {
aoqi@0:         return value;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static final ValidationContext NULL_CONTEXT = new ValidationContext() {
aoqi@0:         public String resolveNamespacePrefix(String s) {
aoqi@0:             if(s.length()==0)   return "";
aoqi@0:             if(s.equals("xml")) return "http://www.w3.org/XML/1998/namespace";
aoqi@0:             return null;
aoqi@0:         }
aoqi@0: 
aoqi@0:         public String getBaseUri() {
aoqi@0:             return null;
aoqi@0:         }
aoqi@0: 
aoqi@0:         public boolean isUnparsedEntity(String s) {
aoqi@0:             return false;
aoqi@0:         }
aoqi@0: 
aoqi@0:         public boolean isNotation(String s) {
aoqi@0:             return false;
aoqi@0:         }
aoqi@0:     };
aoqi@0: }