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An OSGi bundle for Saxon-HE
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2013 Saxonica Limited.
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.style;
import net.sf.saxon.expr.*;
import net.sf.saxon.expr.instruct.Executable;
import net.sf.saxon.expr.parser.ExpressionTool;
import net.sf.saxon.expr.parser.ExpressionVisitor;
import net.sf.saxon.expr.parser.RoleLocator;
import net.sf.saxon.expr.parser.TypeChecker;
import net.sf.saxon.expr.sort.CodepointCollator;
import net.sf.saxon.expr.sort.SortKeyDefinition;
import net.sf.saxon.lib.NamespaceConstant;
import net.sf.saxon.lib.StringCollator;
import net.sf.saxon.om.AttributeCollection;
import net.sf.saxon.om.AxisInfo;
import net.sf.saxon.om.StandardNames;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.type.StringConverter;
import net.sf.saxon.type.ValidationFailure;
import net.sf.saxon.value.SequenceType;
import net.sf.saxon.value.StringValue;
import net.sf.saxon.value.Whitespace;
import java.net.URI;
import java.net.URISyntaxException;
public abstract class XSLSortOrMergeKey extends StyleElement {
protected SortKeyDefinition sortKeyDefinition;
protected Expression select;
protected Expression order;
protected Expression dataType = null;
protected Expression caseOrder;
protected Expression lang;
protected Expression collationName;
protected Expression stable;
protected boolean useDefaultCollation = true;
/**
* Determine whether this type of element is allowed to contain a sequence constructor
* @return true: yes, it may contain a sequence constructor
*/
public boolean mayContainSequenceConstructor() {
return true;
}
protected String getErrorCode(){
return "XTSE1015";
}
@Override
public void validate(Declaration decl) throws XPathException {
if (select != null && hasChildNodes()) {
compileError("An "+getDisplayName()+" element with a select attribute must be empty", getErrorCode());
}
if (select == null && !hasChildNodes()) {
select = new ContextItemExpression();
}
// Get the named or default collation
if (useDefaultCollation) {
collationName = new StringLiteral(getDefaultCollationName());
}
StringCollator stringCollator = null;
if (collationName instanceof StringLiteral) {
String collationString = ((StringLiteral)collationName).getStringValue();
try {
URI collationURI = new URI(collationString);
if (!collationURI.isAbsolute()) {
URI base = new URI(getBaseURI());
collationURI = base.resolve(collationURI);
collationString = collationURI.toString();
}
} catch (URISyntaxException err) {
compileError("Collation name '" + collationString + "' is not a valid URI");
collationString = NamespaceConstant.CODEPOINT_COLLATION_URI;
}
stringCollator = getPrincipalStylesheetModule().findCollation(collationString, getBaseURI());
if (stringCollator==null) {
compileError("Collation " + collationString + " has not been defined", "XTDE1035");
stringCollator = CodepointCollator.getInstance(); // for recovery paths
}
}
select = typeCheck("select", select);
order = typeCheck("order", order);
caseOrder = typeCheck("case-order", caseOrder);
lang = typeCheck("lang", lang);
dataType = typeCheck("data-type", dataType);
collationName = typeCheck("collation", collationName);
if (select != null) {
try {
RoleLocator role =
new RoleLocator(RoleLocator.INSTRUCTION, getDisplayName()+"//select", 0);
//role.setSourceLocator(new ExpressionLocation(this));
select = TypeChecker.staticTypeCheck(select,
SequenceType.ATOMIC_SEQUENCE,
false, role, makeExpressionVisitor());
} catch (XPathException err) {
compileError(err);
}
}
sortKeyDefinition = new SortKeyDefinition();
sortKeyDefinition.setOrder(order);
sortKeyDefinition.setCaseOrder(caseOrder);
sortKeyDefinition.setLanguage(lang);
sortKeyDefinition.setSortKey(select, true);
sortKeyDefinition.setDataTypeExpression(dataType);
sortKeyDefinition.setCollationNameExpression(collationName);
sortKeyDefinition.setCollation(stringCollator);
sortKeyDefinition.setBaseURI(getBaseURI());
sortKeyDefinition.setStable(stable);
sortKeyDefinition.setBackwardsCompatible(xPath10ModeIsEnabled());
}
protected Expression getStable(){
return stable;
}
@Override
protected void prepareAttributes() throws XPathException {
AttributeCollection atts = getAttributeList();
String selectAtt = null;
String orderAtt = null;
String dataTypeAtt = null;
String caseOrderAtt = null;
String langAtt = null;
String collationAtt = null;
String stableAtt = null;
for (int a=0; a