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