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- /*
- * 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.io.BufferedInputStream;
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import javax.xml.XMLConstants;
- import javax.xml.parsers.DocumentBuilder;
- import javax.xml.parsers.DocumentBuilderFactory;
- import javax.xml.parsers.ParserConfigurationException;
- import javax.xml.transform.TransformerException;
- import org.apache.jmeter.util.XPathUtil;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- import org.w3c.dom.NodeList;
- import org.xml.sax.SAXException;
- //@see org.apache.jmeter.functions.PackageTest for unit tests
- /**
- * File data container for XML files Data is accessible via XPath
- *
- */
- public class XPathFileContainer {
- private static final Logger log = LoggerFactory.getLogger(XPathFileContainer.class);
- private final NodeList nodeList;
- private final String fileName; // name of the file
- /** Keeping track of which row is next to be read. */
- private int nextRow;// probably does not need to be synch (always accessed through ThreadLocal?)
- int getNextRow(){// give access to Test code
- return nextRow;
- }
- public XPathFileContainer(String file, String xpath) throws FileNotFoundException, IOException,
- ParserConfigurationException, SAXException, TransformerException {
- log.debug("XPath({}) xpath {}", file, xpath);
- fileName = file;
- nextRow = 0;
- nodeList=load(xpath);
- }
- private NodeList load(String xpath) throws IOException, FileNotFoundException, ParserConfigurationException, SAXException,
- TransformerException {
- NodeList nl = null;
- try ( FileInputStream fis = new FileInputStream(fileName);
- BufferedInputStream bis = new BufferedInputStream(fis) ){
- DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
- factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
- DocumentBuilder builder = factory.newDocumentBuilder();
- nl = XPathUtil.selectNodeList(builder.parse(bis), xpath);
- if(log.isDebugEnabled()) {
- log.debug("found {}", nl.getLength());
- }
- } catch (TransformerException | SAXException
- | ParserConfigurationException | IOException e) {
- log.warn(e.toString());
- throw e;
- }
- return nl;
- }
- public String getXPathString(int num) {
- return XPathUtil.getValueForNode(nodeList.item(num));
- }
- /**
- * Returns the next row to the caller, and updates it, allowing for wrap
- * round
- *
- * @return the first free (unread) row
- *
- */
- public int nextRow() {
- int row = nextRow;
- nextRow++;
- if (nextRow >= size())// 0-based
- {
- nextRow = 0;
- }
- log.debug("Row: {}", row);
- return row;
- }
- public int size() {
- return (nodeList == null) ? -1 : nodeList.getLength();
- }
- /**
- * @return the file name for this class
- */
- public String getFileName() {
- return fileName;
- }
- }
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