/*
* eXist Open Source Native XML Database
* Copyright (C) 2008-2010 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.xslt.expression;
import org.exist.dom.QName;
import org.exist.dom.QNameable;
import org.exist.interpreter.ContextAtExist;
import org.exist.memtree.MemTreeBuilder;
import org.exist.memtree.NodeImpl;
import org.exist.xquery.XPathException;
import org.exist.xquery.util.ExpressionDumper;
import org.exist.xquery.value.Item;
import org.exist.xquery.value.NodeValue;
import org.exist.xquery.value.QNameValue;
import org.exist.xquery.value.Sequence;
import org.exist.xquery.value.SequenceIterator;
import org.exist.xquery.value.ValueSequence;
import org.exist.xslt.XSLContext;
import org.w3c.dom.Attr;
/**
* <!-- Category: instruction -->
* <xsl:copy
* copy-namespaces? = "yes" | "no"
* inherit-namespaces? = "yes" | "no"
* use-attribute-sets? = qnames
* type? = qname
* validation? = "strict" | "lax" | "preserve" | "strip">
* <!-- Content: sequence-constructor -->
* </xsl:copy>
*
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class Copy extends Declaration {
private Boolean copy_namespaces = null;
private Boolean inherit_namespaces = null;
private String use_attribute_sets = null;
private String type = null;
private String validation = null;
public Copy(XSLContext context) {
super(context);
}
public void setToDefaults() {
copy_namespaces = null;
inherit_namespaces = null;
use_attribute_sets = null;
type = null;
validation = null;
}
public void prepareAttribute(ContextAtExist context, Attr attr) throws XPathException {
String attr_name = attr.getLocalName();
if (attr_name.equals(COPY_NAMESPACES)) {
copy_namespaces = getBoolean(attr.getValue());
} else if (attr_name.equals(INHERIT_NAMESPACES)) {
inherit_namespaces = getBoolean(attr.getValue());
} else if (attr_name.equals(USE_ATTRIBUTE_SETS)) {
use_attribute_sets = attr.getValue();
} else if (attr_name.equals(TYPE)) {
type = attr.getValue();
} else if (attr_name.equals(VALIDATION)) {
validation = attr.getValue();
}
}
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
Sequence result = new ValueSequence();
if (contextItem != null)
contextSequence = contextItem.toSequence();
context.pushInScopeNamespaces();
MemTreeBuilder builder = context.getDocumentBuilder();
try {
// for (Item item : contextSequence) {
for (SequenceIterator iterInner = contextSequence.iterate(); iterInner.hasNext();) {
Item i = iterInner.nextItem();
org.w3c.dom.Node item;
if (i instanceof NodeValue) {
item = ((NodeValue) i).getNode();
} else
item = (org.w3c.dom.Node) i;
//UNDERSTAND: strange place to workaround
if (item instanceof org.w3c.dom.Document) {
org.w3c.dom.Document document = (org.w3c.dom.Document) item;
item = document.getDocumentElement();
}
if (item instanceof org.w3c.dom.Element) {
QName qn;
if (item instanceof QNameValue) {
qn = ((QNameValue)item).getQName();
} else {
qn = ((QNameable)item).getQName();
if (qn.getPrefix() == null && context.getInScopeNamespace("") != null) {
qn.setNamespaceURI(context.getInScopeNamespace(""));
}
}
int nodeNr = builder.startElement(qn, null);
if (use_attribute_sets != null)
getXSLContext().getXSLStylesheet().attributeSet(use_attribute_sets, contextSequence, i);
super.eval(contextSequence, i);
builder.endElement();
NodeImpl node = builder.getDocument().getNode(nodeNr);
result.add(node);
} else if (item instanceof org.w3c.dom.Text) {
int nodeNr = builder.characters(i.getStringValue());
NodeImpl node = builder.getDocument().getNode(nodeNr);
result.add(node);
} else {
throw new XPathException("not supported node type "+i.getType());
}
}
} finally {
context.popInScopeNamespaces();
}
return result;
}
/* (non-Javadoc)
* @see org.exist.xquery.Expression#dump(org.exist.xquery.util.ExpressionDumper)
*/
public void dump(ExpressionDumper dumper) {
dumper.display("<xsl:copy");
if (copy_namespaces != null) {
dumper.display(" copy_namespaces = ");
dumper.display(copy_namespaces);
}
if (inherit_namespaces != null) {
dumper.display(" inherit_namespaces = ");
dumper.display(inherit_namespaces);
}
if (use_attribute_sets != null) {
dumper.display(" use_attribute_sets = ");
dumper.display(use_attribute_sets);
}
if (type != null) {
dumper.display(" type = ");
dumper.display(type);
}
if (validation != null) {
dumper.display(" validation = ");
dumper.display(validation);
}
super.dump(dumper);
dumper.display("</xsl:copy>");
}
public String toString() {
StringBuilder result = new StringBuilder();
result.append("<xsl:copy");
if (copy_namespaces != null)
result.append(" copy_namespaces = "+copy_namespaces.toString());
if (inherit_namespaces != null)
result.append(" inherit_namespaces = "+inherit_namespaces.toString());
if (use_attribute_sets != null)
result.append(" use_attribute_sets = "+use_attribute_sets.toString());
if (type != null)
result.append(" type = "+type.toString());
if (validation != null)
result.append(" validation = "+validation.toString());
result.append("> ");
result.append(super.toString());
result.append("</xsl:copy> ");
return result.toString();
}
}