opendaylight/netconf/netconf-util/src/test/java/org/opendaylight/controller/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.controller.netconf.util.test;
  10
  11 import java.io.IOException;
  12 import java.io.InputStream;
  13 import java.io.InputStreamReader;
  14
  15 import javax.xml.parsers.ParserConfigurationException;
  16
  17 import org.opendaylight.controller.netconf.api.NetconfMessage;
  18 import org.opendaylight.controller.netconf.util.xml.XmlUtil;
  19 import org.w3c.dom.Document;
  20 import org.w3c.dom.Element;
  21 import org.xml.sax.SAXException;
  22
  23 import com.google.common.base.Charsets;
  24 import com.google.common.base.Preconditions;
  25 import com.google.common.io.CharStreams;
  26 import com.google.common.io.InputSupplier;
  27
  28 public class XmlFileLoader {
  29
  30     public static NetconfMessage xmlFileToNetconfMessage(final String fileName) throws IOException, SAXException,
  31             ParserConfigurationException {
  32         return new NetconfMessage(xmlFileToDocument(fileName));
  33     }
  34
  35     public static Element xmlFileToElement(final String fileName) throws IOException, SAXException,
  36             ParserConfigurationException {
  37         return xmlFileToDocument(fileName).getDocumentElement();
  38     }
  39
  40     public static String xmlFileToString(final String fileName) throws IOException, SAXException,
  41             ParserConfigurationException {
  42         return XmlUtil.toString(xmlFileToDocument(fileName));
  43     }
  44
  45     public static Document xmlFileToDocument(final String fileName) throws IOException, SAXException,
  46             ParserConfigurationException {
  47         try (InputStream resourceAsStream = XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName)) {
  48             Preconditions.checkNotNull(resourceAsStream, fileName);
  49             final Document doc = XmlUtil.readXmlToDocument(resourceAsStream);
  50             return doc;
  51         }
  52     }
  53
  54     public static String fileToString(final String fileName) throws IOException {
  55         try (InputStream resourceAsStream = XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName)) {
  56             Preconditions.checkNotNull(resourceAsStream);
  57
  58             InputSupplier<? extends InputStream> supplier = new InputSupplier<InputStream>() {
  59                 @Override
  60                 public InputStream getInput() throws IOException {
  61                     return resourceAsStream;
  62                 }
  63             };
  64
  65             InputSupplier<InputStreamReader> readerSupplier = CharStreams.newReaderSupplier(supplier, Charsets.UTF_8);
  66
  67             return CharStreams.toString(readerSupplier);
  68         }
  69     }
  70
  71     public static InputStream getResourceAsStream(final String fileName) {
  72         return XmlFileLoader.class.getClassLoader().getResourceAsStream(fileName);
  73     }
  74 }