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

   1 /*
   2  * Copyright (c) 2016 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;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.opendaylight.yangtools.yang.data.codec.gson.TestUtils.loadTextFile;
  14
  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 javax.xml.parsers.ParserConfigurationException;
  27 import javax.xml.stream.XMLInputFactory;
  28 import javax.xml.stream.XMLStreamException;
  29 import javax.xml.stream.XMLStreamReader;
  30 import org.junit.BeforeClass;
  31 import org.junit.Test;
  32 import org.opendaylight.yangtools.yang.common.QName;
  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.xml.XmlParserStream;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
  41 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
  42 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  43 import org.opendaylight.yangtools.yang.model.api.Module;
  44 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  45 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  46 import org.opendaylight.yangtools.yang.test.util.YangParserTestUtils;
  47 import org.xml.sax.SAXException;
  48
  49 public class YangModeledAnyXmlSupportTest {
  50
  51     private static SchemaContext schemaContext;
  52     private static ContainerNode data;
  53
  54     @BeforeClass
  55     public static void init() throws XMLStreamException, URISyntaxException, IOException, ParserConfigurationException,
  56             SAXException {
  57         schemaContext = YangParserTestUtils.parseYangResourceDirectory("/yang-modeled-anyxml/yang");
  58         final Module bazModule = schemaContext.findModuleByName("baz", null);
  59         final ContainerSchemaNode bazCont = (ContainerSchemaNode) bazModule.getDataChildByName(
  60                 QName.create(bazModule.getQNameModule(), "baz"));
  61         assertNotNull(bazCont);
  62
  63         final InputStream resourceAsStream = YangModeledAnyXmlSupportTest.class.getResourceAsStream(
  64                 "/yang-modeled-anyxml/xml/baz.xml");
  65
  66         final XMLInputFactory factory = XMLInputFactory.newInstance();
  67         final XMLStreamReader reader = factory.createXMLStreamReader(resourceAsStream);
  68
  69         final NormalizedNodeResult result = new NormalizedNodeResult();
  70
  71         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
  72
  73         final XmlParserStream xmlParser = XmlParserStream.create(streamWriter, schemaContext, bazCont);
  74         xmlParser.parse(reader);
  75
  76         assertNotNull(result.getResult());
  77         assertTrue(result.getResult() instanceof ContainerNode);
  78         data = (ContainerNode) result.getResult();
  79     }
  80
  81     @Test
  82     public void jsonToNormalizedNodesTest() throws IOException, URISyntaxException, SAXException {
  83         final String inputJson = loadTextFile("/yang-modeled-anyxml/json/baz.json");
  84         final NormalizedNodeResult result = new NormalizedNodeResult();
  85         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
  86         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext);
  87         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
  88         final NormalizedNode<?, ?> transformedInput = result.getResult();
  89
  90         assertEquals(data, transformedInput);
  91     }
  92
  93     @Test
  94     public void normalizedNodesToJsonTest() throws IOException, URISyntaxException, SAXException {
  95         final DataContainerChild<? extends PathArgument, ?> baz = data;
  96
  97         final Writer writer = new StringWriter();
  98         final String jsonOutput = normalizedNodeToJsonStreamTransformation(writer, baz);
  99
 100         final JsonParser parser = new JsonParser();
 101         final JsonElement serializedJson = parser.parse(jsonOutput);
 102         final JsonElement expextedJson = parser.parse(new FileReader(new File(getClass().getResource(
 103                 "/yang-modeled-anyxml/json/baz.json").toURI())));
 104
 105         assertEquals(expextedJson, serializedJson);
 106     }
 107
 108     private static String normalizedNodeToJsonStreamTransformation(final Writer writer,
 109             final NormalizedNode<?, ?> inputStructure) throws IOException {
 110
 111         final NormalizedNodeStreamWriter jsonStream = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
 112                 JSONCodecFactory.getShared(schemaContext), SchemaPath.ROOT, null,
 113                 JsonWriterFactory.createJsonWriter(writer, 2));
 114         final NormalizedNodeWriter nodeWriter = NormalizedNodeWriter.forStreamWriter(jsonStream);
 115         nodeWriter.write(inputStructure);
 116
 117         nodeWriter.close();
 118         return writer.toString();
 119     }
 120 }