| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed 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. |
| */ |
| |
| /* |
| * Created by IntelliJ IDEA. |
| * User: sweinreuter |
| * Date: 12.07.2006 |
| * Time: 19:16:08 |
| */ |
| package org.intellij.plugins.xpathView.util; |
| |
| import com.intellij.psi.xml.XmlElement; |
| import org.jaxen.UnresolvableException; |
| import org.jaxen.VariableContext; |
| import org.jaxen.XPath; |
| import org.jaxen.saxpath.SAXPathException; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class CachedVariableContext implements VariableContext { |
| private final Map<String, Object> myMap = new HashMap<String, Object>(); |
| |
| public CachedVariableContext(Collection<Variable> variables, XPath xpath, XmlElement contextNode) throws SAXPathException { |
| for (Variable variable : variables) { |
| if (variable.getName().length() == 0) { |
| continue; |
| } |
| final String expression = variable.getExpression(); |
| // empty expression evaluates to empty nodeset |
| final XPath xPath = xpath.getNavigator().parseXPath(expression.length() == 0 ? "/.." : expression); |
| myMap.put(variable.getName(), xPath.evaluate(contextNode)); |
| } |
| } |
| |
| public Object getVariableValue(String nsURI, String prefix, String localName) throws UnresolvableException { |
| final Object o = myMap.get(localName); |
| if (o == null) throw new UnresolvableException("Unresolved variable: " + makePrefix(nsURI) + localName); |
| return o; |
| } |
| |
| private static String makePrefix(String uri) { |
| return uri != null ? "{" + uri + "}:" : ""; |
| } |
| } |