package com.xmlcalabash.functions;
import com.xmlcalabash.core.XProcException;
import com.xmlcalabash.runtime.XCompoundStep;
import com.xmlcalabash.runtime.XStep;
import net.sf.saxon.expr.Expression;
import net.sf.saxon.expr.StaticContext;
import net.sf.saxon.expr.XPathContext;
import net.sf.saxon.lib.ExtensionFunctionCall;
import net.sf.saxon.lib.ExtensionFunctionDefinition;
import net.sf.saxon.om.Sequence;
import net.sf.saxon.om.SequenceIterator;
import net.sf.saxon.om.StructuredQName;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.tree.iter.SingletonIterator;
import net.sf.saxon.value.StringValue;
import net.sf.saxon.value.SequenceType;
import com.xmlcalabash.core.XProcConstants;
import com.xmlcalabash.core.XProcRuntime;
/**
* Implementation of the XSLT system-property() function
*/
public class SystemProperty extends XProcExtensionFunctionDefinition {
private static StructuredQName funcname = new StructuredQName("p", XProcConstants.NS_XPROC, "system-property");
protected SystemProperty() {
// you can't call this one
}
public SystemProperty(XProcRuntime runtime) {
registry.registerRuntime(this, runtime);
}
public StructuredQName getFunctionQName() {
return funcname;
}
public int getMinimumNumberOfArguments() {
return 1;
}
public int getMaximumNumberOfArguments() {
return 1;
}
public SequenceType[] getArgumentTypes() {
return new SequenceType[]{SequenceType.SINGLE_STRING};
}
public SequenceType getResultType(SequenceType[] suppliedArgumentTypes) {
return SequenceType.SINGLE_STRING;
}
public ExtensionFunctionCall makeCallExpression() {
return new SystemPropertyCall(this);
}
private class SystemPropertyCall extends ExtensionFunctionCall {
private StaticContext staticContext = null;
private XProcExtensionFunctionDefinition xdef = null;
public SystemPropertyCall(XProcExtensionFunctionDefinition def) {
xdef = def;
}
public void supplyStaticContext(StaticContext context, int locationId, Expression[] arguments) throws XPathException {
staticContext = context;
}
public Sequence call(XPathContext xPathContext, Sequence[] sequences) throws XPathException {
StructuredQName propertyName = null;
XProcRuntime runtime = registry.getRuntime(xdef);
XStep step = runtime.getXProcData().getStep();
// FIXME: this can't be the best way to do this...
// FIXME: And what, exactly, is this even supposed to be doing!?
if (step != null && !(step instanceof XCompoundStep)) {
throw XProcException.dynamicError(23);
}
try {
String lexicalQName = sequences[0].head().getStringValue();
propertyName = StructuredQName.fromLexicalQName(
lexicalQName,
false,
false,
xPathContext.getConfiguration().getNameChecker(),
staticContext.getNamespaceResolver());
} catch (XPathException e) {
if (e.getErrorCodeLocalPart()==null || e.getErrorCodeLocalPart().equals("FOCA0002")
|| e.getErrorCodeLocalPart().equals("FONS0004")) {
e.setErrorCode("XTDE1390");
}
throw e;
}
String uri = propertyName.getURI();
String local = propertyName.getLocalPart();
String value = "";
if (uri.equals(XProcConstants.NS_XPROC)) {
if ("episode".equals(local)) {
value = runtime.getEpisode();
} else if ("language".equals(local)) {
value = runtime.getLanguage();
} else if ("product-name".equals(local)) {
value = runtime.getProductName();
} else if ("product-version".equals(local)) {
value = runtime.getProductVersion();
} else if ("vendor".equals(local)) {
value = runtime.getVendor();
} else if ("vendor-uri".equals(local)) {
value = runtime.getVendorURI();
} else if ("version".equals(local)) {
value = runtime.getXProcVersion();
} else if ("xpath-version".equals(local)) {
value = runtime.getXPathVersion();
} else if ("psvi-supported".equals(local)) {
value = runtime.getPSVISupported() ? "true" : "false";
}
} else if (uri.equals(XProcConstants.NS_CALABASH_EX)) {
if ("transparent-json".equals(local)) {
value = runtime.transparentJSON() ? "true" : "false";
} else if ("json-flavor".equals(local)) {
value = runtime.jsonFlavor();
} else if ("general-values".equals(local)) {
value = runtime.getAllowGeneralExpressions() ? "true" : "false";
} else if ("xpointer-on-text".equals(local)) {
value = runtime.getAllowXPointerOnText() ? "true" : "false";
} else if ("use-xslt-1.0".equals(local) || "use-xslt-10".equals(local)) {
value = runtime.getUseXslt10Processor() ? "true" : "false";
} else if ("html-serializer".equals(local)) {
value = runtime.getHtmlSerializer() ? "true" : "false";
} else if ("saxon-version".equals(local)) {
value = runtime.getConfiguration().getProcessor().getSaxonProductVersion();
} else if ("saxon-edition".equals(local)) {
value = runtime.getConfiguration().saxonProcessor;
}
}
return new StringValue(value);
}
}
}
//
// 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 Norman Walsh are Copyright (C) Mark Logic Corporation. All Rights Reserved.
//
// Contributor(s): Norman Walsh.
//