package net.sf.saxon.style;
import net.sf.saxon.expr.Expression;
import net.sf.saxon.instruct.CopyOf;
import net.sf.saxon.instruct.Executable;
import net.sf.saxon.om.AttributeCollection;
import net.sf.saxon.om.StandardNames;
import net.sf.saxon.om.Validation;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.type.SchemaType;
import net.sf.saxon.value.Whitespace;
/**
* An xsl:copy-of element in the stylesheet. <br>
*/
public final class XSLCopyOf extends StyleElement {
private Expression select;
private boolean copyNamespaces;
private int validation = Validation.PRESERVE;
private SchemaType schemaType;
private boolean readOnce = false; // extension attribute to enable serial processing
/**
* Determine whether this node is an instruction.
* @return true - it is an instruction
*/
public boolean isInstruction() {
return true;
}
public void prepareAttributes() throws XPathException {
AttributeCollection atts = getAttributeList();
String selectAtt = null;
String copyNamespacesAtt = null;
String validationAtt = null;
String typeAtt = null;
String readOnceAtt = null;
for (int a=0; a<atts.getLength(); a++) {
int nc = atts.getNameCode(a);
String f = getNamePool().getClarkName(nc);
if (f==StandardNames.SELECT) {
selectAtt = atts.getValue(a);
} else if (f==StandardNames.COPY_NAMESPACES) {
copyNamespacesAtt = Whitespace.trim(atts.getValue(a));
} else if (f==StandardNames.VALIDATION) {
validationAtt = Whitespace.trim(atts.getValue(a));
} else if (f==StandardNames.TYPE) {
typeAtt = Whitespace.trim(atts.getValue(a));
} else if (f==StandardNames.SAXON_READ_ONCE) {
readOnceAtt = Whitespace.trim(atts.getValue(a));
} else {
checkUnknownAttribute(nc);
}
}
if (selectAtt!=null) {
select = makeExpression(selectAtt);
} else {
reportAbsence("select");
}
if (copyNamespacesAtt == null) {
copyNamespaces = true;
} else {
if (copyNamespacesAtt.equals("yes")) {
copyNamespaces = true;
} else if (copyNamespacesAtt.equals("no")) {
copyNamespaces = false;
} else {
compileError("Value of copy-namespaces must be 'yes' or 'no'", "XTSE0020");
}
}
if (validationAtt!=null) {
validation = Validation.getCode(validationAtt);
if (validation != Validation.STRIP && !getExecutable().isSchemaAware()) {
validation = Validation.STRIP;
compileError("To perform validation, a schema-aware XSLT processor is needed", "XTSE1660");
}
if (validation == Validation.INVALID) {
compileError("invalid value of validation attribute", "XTSE0020");
}
} else {
validation = getContainingStylesheet().getDefaultValidation();
}
if (typeAtt!=null) {
schemaType = getSchemaType(typeAtt);
if (!getExecutable().isSchemaAware()) {
compileError("The @type attribute is available only with a schema-aware XSLT processor", "XTSE1660");
}
validation = Validation.BY_TYPE;
}
if (typeAtt != null && validationAtt != null) {
compileError("The @validation and @type attributes are mutually exclusive", "XTSE1505");
}
// if (validation == Validation.PRESERVE && !copyNamespaces) {
// // this is an error only when copying namespace-sensitive content
// compileError("copy-namespaces must be set to 'yes' when validation is set to 'preserve'", "XTTE0950");
// }
if (readOnceAtt != null) {
if (readOnceAtt.equals("yes")) {
readOnce = true;
} else if (readOnceAtt.equals("no")) {
readOnce = false;
} else {
compileError("saxon:read-once attribute must be 'yes' or 'no'");
}
}
}
public void validate() throws XPathException {
checkEmpty();
select = typeCheck("select", select);
}
public Expression compile(Executable exec) {
CopyOf inst = new CopyOf(select, copyNamespaces, validation, schemaType, false);
if (readOnce) {
inst.setReadOnce(readOnce);
}
inst.setCopyLineNumbers(exec.getConfiguration().isLineNumbering());
inst.setStaticBaseUri(getBaseURI());
return inst;
}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay.
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none.
//