package net.sf.saxon.style;
import net.sf.saxon.expr.Expression;
import net.sf.saxon.expr.Literal;
import net.sf.saxon.instruct.DocumentInstr;
import net.sf.saxon.instruct.Executable;
import net.sf.saxon.om.AttributeCollection;
import net.sf.saxon.om.Axis;
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:document instruction in the stylesheet. <BR>
* This instruction creates a document node in the result tree, optionally
* validating it.
*/
public class XSLDocument extends StyleElement {
private int validationAction = Validation.STRIP;
private SchemaType schemaType = null;
/**
* Determine whether this node is an instruction.
* @return true - it is an instruction
*/
public boolean isInstruction() {
return true;
}
/**
* Determine whether this type of element is allowed to contain a template-body
* @return true: yes, it may contain a template-body
*/
public boolean mayContainSequenceConstructor() {
return true;
}
public void prepareAttributes() throws XPathException {
AttributeCollection atts = getAttributeList();
String validationAtt = null;
String typeAtt = null;
for (int a=0; a<atts.getLength(); a++) {
int nc = atts.getNameCode(a);
String f = getNamePool().getClarkName(nc);
if (f.equals(StandardNames.VALIDATION)) {
validationAtt = Whitespace.trim(atts.getValue(a));
} else if (f.equals(StandardNames.TYPE)) {
typeAtt = Whitespace.trim(atts.getValue(a));
} else {
checkUnknownAttribute(nc);
}
}
if (validationAtt==null) {
validationAction = getContainingStylesheet().getDefaultValidation();
} else {
validationAction = Validation.getCode(validationAtt);
if (validationAction != Validation.STRIP && !getExecutable().isSchemaAware()) {
compileError("To perform validation, a schema-aware XSLT processor is needed", "XTSE1660");
}
if (validationAction == Validation.INVALID) {
compileError("Invalid value of @validation attribute", "XTSE0020");
}
}
if (typeAtt!=null) {
if (!getExecutable().isSchemaAware()) {
compileError("The @type attribute is available only with a schema-aware XSLT processor", "XTSE1660");
}
schemaType = getSchemaType(typeAtt);
validationAction = Validation.BY_TYPE;
}
if (typeAtt != null && validationAtt != null) {
compileError("The @validation and @type attributes are mutually exclusive", "XTSE1505");
}
}
public void validate() throws XPathException {
//
}
public Expression compile(Executable exec) throws XPathException {
DocumentInstr inst = new DocumentInstr(false, null, getBaseURI());
inst.setValidationMode(validationAction);
inst.setSchemaType(schemaType);
Expression b = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
if (b == null) {
b = Literal.makeEmptySequence();
}
inst.setContentExpression(b);
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.
//
//