netconf/netconf-util/src/test/java/org/opendaylight/netconf/util/test/XmlFileLoader.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netconf.util.test;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.io.ByteSource;
  13 import java.io.IOException;
  14 import java.io.InputStream;
  15 import java.nio.charset.StandardCharsets;
  16 import javax.xml.parsers.ParserConfigurationException;
  17 import org.opendaylight.controller.config.util.xml.XmlUtil;
  18 import org.opendaylight.netconf.api.NetconfMessage;
  19 import org.w3c.dom.Document;
  20 import org.w3c.dom.Element;
  21 import org.xml.sax.SAXException;
  22
  23 public final class XmlFileLoader {
  24
  25     private XmlFileLoader() {
  26
  27     }
  28
  29     public static NetconfMessage xmlFileToNetconfMessage(final String fileName) throws IOException, SAXException,
  30             ParserConfigurationException {
  31         return new NetconfMessage(xmlFileToDocument(fileName));
  32     }
  33
  34     public static Element xmlFileToElement(final String fileName) throws IOException, SAXException,
  35             ParserConfigurationException {
  36         return xmlFileToDocument(fileName).getDocumentElement();
  37     }
  38
  39     public static String xmlFileToString(final String fileName) throws IOException, SAXException,
  40             ParserConfigurationException {
  41         return XmlUtil.toString(xmlFileToDocument(fileName));
  42     }
  43
  44     public static Document xmlFileToDocument(final String fileName) throws IOException, SAXException,
  45             ParserConfigurationException {
  46         try (InputStream resourceAsStream = XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName)) {
  47             Preconditions.checkNotNull(resourceAsStream, fileName);
  48             final Document doc = XmlUtil.readXmlToDocument(resourceAsStream);
  49             return doc;
  50         }
  51     }
  52
  53     public static String fileToString(final String fileName) throws IOException {
  54         try (InputStream resourceAsStream = XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName)) {
  55             Preconditions.checkNotNull(resourceAsStream);
  56             return new ByteSource() {
  57                 @Override
  58                 public InputStream openStream() {
  59                     return resourceAsStream;
  60                 }
  61             }.asCharSource(StandardCharsets.UTF_8).read();
  62
  63         }
  64     }
  65
  66     public static InputStream getResourceAsStream(final String fileName) {
  67         return XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName);
  68     }
  69 }