| /* |
| * 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.jmeter.functions; |
| |
| |
| import java.util.Collection; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.jmeter.engine.util.CompoundVariable; |
| import org.apache.jmeter.samplers.SampleResult; |
| import org.apache.jmeter.samplers.Sampler; |
| import org.apache.jmeter.util.JMeterUtils; |
| import org.apache.jorphan.logging.LoggingManager; |
| import org.apache.log.Logger; |
| |
| // @see org.apache.jmeter.functions.PackageTest for unit tests |
| |
| /** |
| * The function represented by this class allows data to be read from XML files. |
| * Syntax is similar to the CVSRead function. The function allows the test to |
| * line-thru the nodes in the XML file - one node per each test. E.g. inserting |
| * the following in the test scripts : |
| * |
| * ${_XPath(c:/BOF/abcd.xml,/xpath/)} // match the (first) node |
| * ${_XPath(c:/BOF/abcd.xml,/xpath/)} // Go to next match of '/xpath/' expression |
| * |
| * NOTE: A single instance of each different file/expression combination |
| * is opened and used for all threads. |
| * @since 2.0.3 |
| */ |
| public class XPath extends AbstractFunction { |
| private static final Logger log = LoggingManager.getLoggerForClass(); |
| |
| // static { |
| // LoggingManager.setPriority("DEBUG","jmeter"); |
| // LoggingManager.setTarget(new java.io.PrintWriter(System.out)); |
| // } |
| private static final String KEY = "__XPath"; // Function name //$NON-NLS-1$ |
| |
| private static final List<String> desc = new LinkedList<>(); |
| |
| private Object[] values; // Parameter list |
| |
| static { |
| desc.add(JMeterUtils.getResString("xpath_file_file_name")); //$NON-NLS-1$ |
| desc.add(JMeterUtils.getResString("xpath_expression")); //$NON-NLS-1$ |
| } |
| |
| public XPath() { |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public synchronized String execute(SampleResult previousResult, Sampler currentSampler) |
| throws InvalidVariableException { |
| String myValue = ""; //$NON-NLS-1$ |
| |
| String fileName = ((CompoundVariable) values[0]).execute(); |
| String xpathString = ((CompoundVariable) values[1]).execute(); |
| |
| if (log.isDebugEnabled()){ |
| log.debug("execute (" + fileName + " " + xpathString + ") "); |
| } |
| |
| myValue = XPathWrapper.getXPathString(fileName, xpathString); |
| |
| if (log.isDebugEnabled()){ |
| log.debug("execute value: " + myValue); |
| } |
| |
| return myValue; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public List<String> getArgumentDesc() { |
| return desc; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String getReferenceKey() { |
| return KEY; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public synchronized void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException { |
| log.debug("setParameter - Collection.size=" + parameters.size()); |
| |
| values = parameters.toArray(); |
| |
| if (log.isDebugEnabled()) { |
| for (int i = 0; i < parameters.size(); i++) { |
| log.debug("i:" + ((CompoundVariable) values[i]).execute()); |
| } |
| } |
| |
| checkParameterCount(parameters, 2); |
| |
| /* |
| * Need to reset the containers for repeated runs; about the only way |
| * for functions to detect that a run is starting seems to be the |
| * setParameters() call. |
| */ |
| XPathWrapper.clearAll();// TODO only clear the relevant entry - if possible... |
| |
| } |
| } |