| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.ode.bpel.elang.xpath20.compiler; |
| |
| import net.sf.saxon.expr.Expression; |
| import net.sf.saxon.trans.XPathException; |
| import net.sf.saxon.trans.StaticError; |
| import net.sf.saxon.xpath.XPathFunctionCall; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.xpath.XPathFunction; |
| import javax.xml.xpath.XPathFunctionException; |
| import java.util.ArrayList; |
| |
| /** |
| * Overloading the XPathFunctionLibrary to force it to initialize our functions giving |
| * the provided parameters. Otherwise the Saxon implemetation just never gives you |
| * any parameter before runtime. |
| * @author mriou <mriou at apache dot org> |
| */ |
| public class OdeXPathFunctionLibrary extends net.sf.saxon.xpath.XPathFunctionLibrary { |
| private static final long serialVersionUID = -8885396864277163797L; |
| |
| private JaxpFunctionResolver _funcResolver; |
| |
| public OdeXPathFunctionLibrary(JaxpFunctionResolver funcResolver) { |
| _funcResolver = funcResolver; |
| } |
| |
| public Expression bind(int nameCode, String uri, String local, Expression[] staticArgs) throws XPathException { |
| QName name = new QName(uri, local); |
| XPathFunction function = _funcResolver.resolveFunction(name, staticArgs.length); |
| if (function == null) { |
| return null; |
| } |
| |
| // Converting the expression array to the simple string |
| ArrayList args = new ArrayList(staticArgs.length); |
| for (Expression expression : staticArgs) { |
| String exprStr = expression.toString(); |
| if (exprStr.startsWith("\"")) exprStr = exprStr.substring(1); |
| if (exprStr.endsWith("\"")) exprStr = exprStr.substring(0, exprStr.length() - 1); |
| args.add(exprStr); |
| } |
| |
| try { |
| function.evaluate(args); |
| } catch (XPathFunctionException e) { |
| throw new StaticError(e); |
| } |
| XPathFunctionCall fc = new XPathFunctionCall(function); |
| fc.setArguments(staticArgs); |
| return fc; |
| } |
| |
| } |