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