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