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