yang/yang-data-codec-gson/src/test/java/org/opendaylight/yangtools/yang/data/codec/gson/retest/YangModeledAnyXmlSupportTest.java

   1 /*
   2  * Copyright (c) 2015 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 package org.opendaylight.yangtools.yang.data.codec.gson.retest;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.opendaylight.yangtools.yang.data.codec.gson.retest.TestUtils.loadModules;
  12 import static org.opendaylight.yangtools.yang.data.codec.gson.retest.TestUtils.loadTextFile;
  13
  14 import com.google.common.base.Preconditions;
  15 import com.google.gson.JsonElement;
  16 import com.google.gson.JsonParser;
  17 import com.google.gson.stream.JsonReader;
  18 import java.io.File;
  19 import java.io.FileReader;
  20 import java.io.IOException;
  21 import java.io.InputStream;
  22 import java.io.StringReader;
  23 import java.io.StringWriter;
  24 import java.io.Writer;
  25 import java.net.URISyntaxException;
  26 import java.util.Collections;
  27 import javax.xml.parsers.DocumentBuilder;
  28 import javax.xml.parsers.DocumentBuilderFactory;
  29 import javax.xml.parsers.ParserConfigurationException;
  30 import javax.xml.stream.XMLOutputFactory;
  31 import org.junit.BeforeClass;
  32 import org.junit.Test;
  33 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  34 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  35 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  36 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  38 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
  39 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactory;
  40 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  41 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
  42 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  43 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
  44 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
  45 import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.DomUtils;
  46 import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.parser.DomToNormalizedNodeParserFactory;
  47 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  48 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  49 import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
  50 import org.w3c.dom.Document;
  51 import org.xml.sax.SAXException;
  52
  53 public class YangModeledAnyXmlSupportTest {
  54
  55     private static final XMLOutputFactory XML_FACTORY;
  56     private static final DocumentBuilderFactory BUILDERFACTORY;
  57
  58     static {
  59         XML_FACTORY = XMLOutputFactory.newFactory();
  60         XML_FACTORY.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, false);
  61
  62         BUILDERFACTORY = DocumentBuilderFactory.newInstance();
  63         BUILDERFACTORY.setNamespaceAware(true);
  64         BUILDERFACTORY.setCoalescing(true);
  65         BUILDERFACTORY.setIgnoringElementContentWhitespace(true);
  66         BUILDERFACTORY.setIgnoringComments(true);
  67     }
  68
  69     private static SchemaContext schemaContext;
  70     private static Document xmlDoc;
  71     private static ContainerNode data;
  72
  73     @BeforeClass
  74     public static void init() throws IOException, URISyntaxException, ReactorException, SAXException {
  75         schemaContext = loadModules("/yang-modeled-anyxml/yang");
  76         xmlDoc = loadDocument("/yang-modeled-anyxml/xml/baz.xml");
  77         data = DomToNormalizedNodeParserFactory
  78                 .getInstance(DomUtils.defaultValueCodecProvider(), schemaContext).getContainerNodeParser()
  79                 .parse(Collections.singletonList(xmlDoc.getDocumentElement()), schemaContext);
  80     }
  81
  82     @Test
  83     public void jsonToNormalizedNodesTest() throws IOException, URISyntaxException, SAXException {
  84         final String inputJson = loadTextFile("/yang-modeled-anyxml/json/baz.json");
  85         final NormalizedNodeResult result = new NormalizedNodeResult();
  86         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
  87         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext);
  88         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
  89         final NormalizedNode<?, ?> transformedInput = result.getResult();
  90
  91         assertEquals(data.getValue().iterator().next(), transformedInput);
  92     }
  93
  94     @Test
  95     public void normalizedNodesToJsonTest() throws IOException, URISyntaxException, SAXException {
  96         final DataContainerChild<? extends PathArgument, ?> baz = data.getValue().iterator().next();
  97
  98         final Writer writer = new StringWriter();
  99         final String jsonOutput = normalizedNodeToJsonStreamTransformation(writer, baz);
 100
 101         final JsonParser parser = new JsonParser();
 102         final JsonElement serializedJson = parser.parse(jsonOutput);
 103         final JsonElement expextedJson = parser.parse(new FileReader(new File(getClass().getResource(
 104                 "/yang-modeled-anyxml/json/baz.json").toURI())));
 105
 106         assertEquals(expextedJson, serializedJson);
 107     }
 108
 109     private String normalizedNodeToJsonStreamTransformation(final Writer writer,
 110             final NormalizedNode<?, ?> inputStructure) throws IOException {
 111
 112         final NormalizedNodeStreamWriter jsonStream = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
 113                 JSONCodecFactory.create(schemaContext), SchemaPath.ROOT, null,
 114                 JsonWriterFactory.createJsonWriter(writer, 2));
 115         final NormalizedNodeWriter nodeWriter = NormalizedNodeWriter.forStreamWriter(jsonStream);
 116         nodeWriter.write(inputStructure);
 117
 118         nodeWriter.close();
 119         return writer.toString();
 120     }
 121
 122     private static Document loadDocument(final String xmlPath) throws IOException, SAXException {
 123         final InputStream resourceAsStream = YangModeledAnyXmlSupportTest.class.getResourceAsStream(xmlPath);
 124
 125         final Document currentConfigElement = readXmlToDocument(resourceAsStream);
 126         Preconditions.checkNotNull(currentConfigElement);
 127         return currentConfigElement;
 128     }
 129
 130     private static Document readXmlToDocument(final InputStream xmlContent) throws IOException, SAXException {
 131         final DocumentBuilder dBuilder;
 132         try {
 133             dBuilder = BUILDERFACTORY.newDocumentBuilder();
 134         } catch (final ParserConfigurationException e) {
 135             throw new RuntimeException("Failed to parse XML document", e);
 136         }
 137         final Document doc = dBuilder.parse(xmlContent);
 138
 139         doc.getDocumentElement().normalize();
 140         return doc;
 141     }
 142
 143 }