package net.sf.saxon.dotnet;
import cli.System.Globalization.CompareInfo;
import cli.System.Globalization.CompareOptions;
import cli.System.Globalization.CultureInfo;
import net.sf.saxon.Configuration;
import net.sf.saxon.sort.*;
import net.sf.saxon.trans.XPathException;
import java.text.ParseException;
import java.text.RuleBasedCollator;
import java.util.Comparator;
import java.util.Properties;
/**
* A DotNetCollationFactory allows a Collation to be created given
* a set of properties that the collation should have. This class uses the services
* of the .NET platform; there is a corresponding class that uses the Java collation facilities.
*/
public abstract class DotNetCollationFactory {
/**
* The class is a never instantiated
*/
private DotNetCollationFactory() {
}
/**
* Make a collator with given properties
* @param config the Configuration
* @param props the desired properties of the collation
* @param uri the collation URI
* @return a collation with these properties
*/
public static StringCollator makeCollation(Configuration config, Properties props, String uri) throws XPathException {
StringCollator stringCollator = null;
// If a specific collation class is requested, this overrides everything else. Note that
// the class is loaded as a Java class, not as a .NET class.
String classAtt = props.getProperty("class");
if (classAtt != null) {
Object comparator = config.getInstance(classAtt, null);
if (comparator instanceof Comparator) {
stringCollator = new NamedCollation(uri, (Comparator)comparator);
} else if (comparator instanceof StringCollator) {
return (StringCollator)comparator;
} else {
throw new XPathException("Requested collation class " + classAtt + " is not a Comparator");
}
}
// If rules are specified, create a RuleBasedCollator. In this case we use the Java platform facilities
// available from the GNU Classpath library.
String rulesAtt = props.getProperty("rules");
if (rulesAtt!=null && stringCollator==null) {
try {
stringCollator = new NamedCollation(uri, new RuleBasedCollator(rulesAtt));
} catch (ParseException e) {
throw new XPathException("Invalid collation rules: " + e.getMessage());
}
}
// Start with the lang attribute
CompareInfo info;
int options = 0;
String langAtt = props.getProperty("lang");
if (langAtt!=null) {
info = CultureInfo.CreateSpecificCulture(langAtt).get_CompareInfo();
} else {
info = CultureInfo.get_CurrentCulture().get_CompareInfo(); // use default locale
}
// See if there is a strength attribute
String strengthAtt = props.getProperty("strength");
if (strengthAtt!=null && options==0) {
if (strengthAtt.equals("primary")) {
options = CompareOptions.IgnoreCase | CompareOptions.IgnoreNonSpace | CompareOptions.IgnoreWidth;
} else if (strengthAtt.equals("secondary")) {
options = CompareOptions.IgnoreCase | CompareOptions.IgnoreWidth;
} else if (strengthAtt.equals("tertiary")) {
options = CompareOptions.IgnoreWidth;
} else if (strengthAtt.equals("identical")) {
options = 0;
} else {
throw new XPathException("strength must be primary, secondary, tertiary, or identical");
}
}
// Look for the properties ignore-case, ignore-modifiers, ignore-width
String ignore = props.getProperty("ignore-case");
if (ignore != null) {
if (ignore.equals("yes")) {
options |= CompareOptions.IgnoreCase;
} else if (ignore.equals("no")) {
// no-op
} else {
throw new XPathException("ignore-case must be yes or no");
}
}
ignore = props.getProperty("ignore-modifiers");
if (ignore != null) {
if (ignore.equals("yes")) {
options |= CompareOptions.IgnoreNonSpace;
} else if (ignore.equals("no")) {
// no-op
} else {
throw new XPathException("ignore-modifiers must be yes or no");
}
}
ignore = props.getProperty("ignore-symbols");
if (ignore != null) {
if (ignore.equals("yes")) {
options |= CompareOptions.IgnoreSymbols;
} else if (ignore.equals("no")) {
// no-op
} else {
throw new XPathException("ignore-symbols must be yes or no");
}
}
ignore = props.getProperty("ignore-width");
if (ignore != null) {
if (ignore.equals("yes")) {
options |= CompareOptions.IgnoreWidth;
} else if (ignore.equals("no")) {
// no-op
} else {
throw new XPathException("ignore-width must be yes or no");
}
}
if (stringCollator == null) {
stringCollator = new DotNetComparator(info, CompareOptions.wrap(options));
}
// See if there is a case-order property
String caseOrder = props.getProperty("case-order");
if (caseOrder != null && !"#default".equals(caseOrder)) {
// force the base collation to ignore case
options |= CompareOptions.IgnoreCase;
stringCollator = new DotNetComparator(info, CompareOptions.wrap(options));
if (caseOrder.equals("lower-first")) {
stringCollator = new LowercaseFirstCollator(stringCollator);
} else if (caseOrder.equals("upper-first")) {
stringCollator = new UppercaseFirstCollator(stringCollator);
//System.err.println("Creating UCFirstComparer");
} else {
throw new XPathException("case-order must be lower-first, upper-first, or #default");
}
}
// See if there is an alphanumeric property
String alphanumeric = props.getProperty("alphanumeric");
if (alphanumeric != null && !"no".equals(alphanumeric)) {
if (alphanumeric.equals("yes")) {
stringCollator = new AlphanumericCollator(stringCollator);
} else if (alphanumeric.equals("codepoint")) {
stringCollator = new AlphanumericCollator(CodepointCollator.getInstance());
} else {
throw new XPathException("alphanumeric must be yes, no, or codepoint");
}
}
return stringCollator;
}
}
//
// 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 Kay
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none.
//