mrglavas 2003/06/24 17:48:32
Added: java/src/org/apache/xerces/xinclude
MultipleScopeNamespaceSupport.java
Log:
Preliminary support for XInclude submitted by Peter McCracken. It supports:
regular/text includes, fallbacks, namespace fix-up, etc...
Revision Changes Path
1.1
xml-xerces/java/src/org/apache/xerces/xinclude/MultipleScopeNamespaceSupport.java
Index: MultipleScopeNamespaceSupport.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xerces.xinclude;
import java.util.Enumeration;
import org.apache.xerces.util.NamespaceSupport;
import org.apache.xerces.util.XMLSymbols;
import org.apache.xerces.xni.NamespaceContext;
/**
* @author Peter McCracken, IBM
*/
public class MultipleScopeNamespaceSupport extends NamespaceSupport {
protected int[] fScope = new int[8];
protected int fCurrentScope;
/**
*
*/
public MultipleScopeNamespaceSupport() {
super();
fCurrentScope = 0;
fScope[0] = 0;
}
/**
* @param context
*/
public MultipleScopeNamespaceSupport(NamespaceContext context) {
super(context);
fCurrentScope = 0;
fScope[0] = 0;
}
/* (non-Javadoc)
* @see org.apache.xerces.xni.NamespaceContext#getAllPrefixes()
*/
public Enumeration getAllPrefixes() {
int count = 0;
if (fPrefixes.length < (fNamespace.length / 2)) {
// resize prefix array
String[] prefixes = new String[fNamespaceSize];
fPrefixes = prefixes;
}
String prefix = null;
boolean unique = true;
for (int i = fContext[fScope[fCurrentScope]];
i <= (fNamespaceSize - 2);
i += 2) {
prefix = fNamespace[i];
for (int k = 0; k < count; k++) {
if (fPrefixes[k] == prefix) {
unique = false;
break;
}
}
if (unique) {
fPrefixes[count++] = prefix;
}
unique = true;
}
return new Prefixes(fPrefixes, count);
}
public int getScopeForContext(int context) {
int scope = fCurrentScope;
while (context < fScope[scope]) {
scope--;
}
return scope;
}
/* (non-Javadoc)
* @see org.apache.xerces.xni.NamespaceContext#getPrefix(java.lang.String)
*/
public String getPrefix(String uri) {
return getPrefix(uri, fNamespaceSize, fScope[fCurrentScope]);
}
/* (non-Javadoc)
* @see org.apache.xerces.xni.NamespaceContext#getURI(java.lang.String)
*/
public String getURI(String prefix) {
return getURI(prefix, fNamespaceSize, fScope[fCurrentScope]);
}
public String getPrefix(String uri, int context) {
return getPrefix(uri, fContext[context+1],
fScope[getScopeForContext(context)]);
}
public String getURI(String prefix, int context) {
return getURI(prefix, fContext[context+1],
fScope[getScopeForContext(context)]);
}
public String getPrefix(String uri, int start, int end) {
// this saves us from having a copy of each of these in fNamespace for each
scope
if (uri == NamespaceContext.XML_URI) {
return XMLSymbols.PREFIX_XML;
}
if (uri == NamespaceContext.XMLNS_URI) {
return XMLSymbols.PREFIX_XMLNS;
}
// find uri in current context
for (int i = start; i > end; i -= 2) {
if (fNamespace[i - 1] == uri) {
if (getURI(fNamespace[i - 2]) == uri)
return fNamespace[i - 2];
}
}
// uri not found
return null;
}
public String getURI(String prefix, int start, int end) {
// this saves us from having a copy of each of these in fNamespace for each
scope
if (prefix == XMLSymbols.PREFIX_XML) {
return NamespaceContext.XML_URI;
}
if (prefix == XMLSymbols.PREFIX_XMLNS) {
return NamespaceContext.XMLNS_URI;
}
// find prefix in current context
for (int i = start; i > end; i -= 2) {
if (fNamespace[i - 2] == prefix) {
return fNamespace[i - 1];
}
}
// prefix not found
return null;
}
/* (non-Javadoc)
* @see org.apache.xerces.xni.NamespaceContext#reset()
*
* Onlys resets the current scope -- all namespaces defined in lower scopes
* remain valid after a call to reset
*/
public void reset() {
fCurrentContext = fScope[fCurrentScope];
fNamespaceSize = fContext[fCurrentContext];
}
public void pushScope() {
if (fCurrentScope + 1 == fScope.length) {
int[] contextarray = new int[fScope.length * 2];
System.arraycopy(fScope, 0, contextarray, 0, fScope.length);
fScope = contextarray;
}
pushContext();
fScope[++fCurrentScope] = fCurrentContext;
}
public void popScope() {
fCurrentContext = fScope[fCurrentScope--];
popContext();
}
} // class NamespaceSupport
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