org.apache.xerces.xinclude.XIncludeNamespaceSupport Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.xinclude;
import org.apache.xerces.xni.NamespaceContext;
/**
* This is an implementation of NamespaceContext which is intended to be used for
* XInclude processing. It enables each context to be marked as invalid, if necessary,
* to indicate that the namespaces recorded on those contexts won't be apparent in the
* resulting infoset.
*
* @author Peter McCracken, IBM
*
* @version $Id: XIncludeNamespaceSupport.java 447243 2006-09-18 05:15:27Z mrglavas $
*/
public class XIncludeNamespaceSupport extends MultipleScopeNamespaceSupport {
/**
* This stores whether or not the context at the matching depth was valid.
*/
private boolean[] fValidContext = new boolean[8];
/**
*
*/
public XIncludeNamespaceSupport() {
super();
}
/**
* @param context
*/
public XIncludeNamespaceSupport(NamespaceContext context) {
super(context);
}
/**
* Pushes a new context onto the stack.
*/
public void pushContext() {
super.pushContext();
if (fCurrentContext + 1 == fValidContext.length) {
boolean[] contextarray = new boolean[fValidContext.length * 2];
System.arraycopy(fValidContext, 0, contextarray, 0, fValidContext.length);
fValidContext = contextarray;
}
fValidContext[fCurrentContext] = true;
}
/**
* This method is used to set a context invalid for XInclude namespace processing.
* Any context defined by an <include> or <fallback> element is not
* valid for processing the include parent's [in-scope namespaces]. Thus, contexts
* defined by these elements are set to invalid by the XInclude processor using
* this method.
*/
public void setContextInvalid() {
fValidContext[fCurrentContext] = false;
}
/**
* This returns the namespace URI which was associated with the given pretext, in
* the context that existed at the include parent of the current element. The
* include parent is the last element, before the current one, which was not set
* to an invalid context using setContextInvalid()
*
* @param prefix the prefix of the desired URI
* @return the URI corresponding to the prefix in the context of the include parent
*/
public String getURIFromIncludeParent(String prefix) {
int lastValidContext = fCurrentContext - 1;
while (lastValidContext > 0 && !fValidContext[lastValidContext]) {
lastValidContext--;
}
return getURI(prefix, lastValidContext);
}
}