pce/src/main/java/org/opendaylight/transportpce/pce/gnpy/ServiceDataStoreOperationsImpl.java

   1 /*
   2  * Copyright © 2018 Orange, 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.transportpce.pce.gnpy;
  10
  11 import com.google.common.base.Function;
  12 import com.google.common.collect.FluentIterable;
  13
  14 import java.io.BufferedWriter;
  15 import java.io.FileWriter;
  16 import java.io.IOException;
  17 import java.io.StringWriter;
  18 import java.io.Writer;
  19 import java.util.Collections;
  20 import java.util.Optional;
  21
  22 import org.opendaylight.mdsal.binding.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
  23 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
  24 import org.opendaylight.mdsal.binding.generator.util.BindingRuntimeContext;
  25 import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
  26 import org.opendaylight.transportpce.common.DataStoreContext;
  27 import org.opendaylight.transportpce.common.converter.XMLDataObjectConverter;
  28 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  29 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.OrgOpenroadmDevice;
  30 import org.opendaylight.yangtools.yang.binding.BindingStreamEventWriter;
  31 import org.opendaylight.yangtools.yang.binding.DataObject;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
  34 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  35 import org.opendaylight.yangtools.yang.common.QName;
  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.codec.gson.JSONCodecFactorySupplier;
  39 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  40 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  41 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  42 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  43 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
  44 import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 public class ServiceDataStoreOperationsImpl implements ServiceDataStoreOperations {
  49
  50     private static final Logger LOG = LoggerFactory.getLogger(ServiceDataStoreOperationsImpl.class);
  51
  52     public ServiceDataStoreOperationsImpl(NetworkTransactionService networkTransactionService) {
  53     }
  54
  55     public void createXMLFromDevice(DataStoreContext dataStoreContextUtil, OrgOpenroadmDevice device, String output)
  56         throws GnpyException {
  57
  58         if (device != null) {
  59             Optional<NormalizedNode<?, ?>> transformIntoNormalizedNode = null;
  60             XMLDataObjectConverter cwDsU = XMLDataObjectConverter.createWithDataStoreUtil(dataStoreContextUtil);
  61             transformIntoNormalizedNode = cwDsU.toNormalizedNodes(device, OrgOpenroadmDevice.class);
  62             if (!transformIntoNormalizedNode.isPresent()) {
  63                 throw new GnpyException(String.format(
  64                     "In ServiceDataStoreOperationsImpl: Cannot transform the device %s into normalized nodes",
  65                     device.toString()));
  66             }
  67             Writer writerFromDataObject =
  68                 cwDsU.writerFromDataObject(device, OrgOpenroadmDevice.class,cwDsU.dataContainer());
  69             try {
  70                 BufferedWriter writer = new BufferedWriter(new FileWriter(output));
  71                 writer.write(writerFromDataObject.toString());
  72                 writer.close();
  73             } catch (IOException e) {
  74                 throw new GnpyException(
  75                     String.format("In ServiceDataStoreOperationsImpl : Bufferwriter error"),e);
  76             }
  77             LOG.debug("GNPy: device xml : {}", writerFromDataObject.toString());
  78         }
  79     }
  80
  81     public String createJsonStringFromDataObject(final InstanceIdentifier<?> id, DataObject object)
  82         throws GnpyException, Exception {
  83
  84         final SchemaPath scPath = SchemaPath
  85                 .create(FluentIterable.from(id.getPathArguments()).transform(new Function<PathArgument, QName>() {
  86                     @Override
  87                     public QName apply(final PathArgument input) {
  88                         return BindingReflections.findQName(input.getType());
  89                     }
  90                 }), true);
  91         final Writer writer = new StringWriter();
  92         NormalizedNodeStreamWriter domWriter;
  93
  94         try {
  95             // Prepare the variables
  96             final ModuleInfoBackedContext moduleContext = ModuleInfoBackedContext.create();
  97             Iterable<? extends YangModuleInfo> moduleInfos = Collections
  98                     .singleton(BindingReflections.getModuleInfo(object.getClass()));
  99             moduleContext.addModuleInfos(moduleInfos);
 100             SchemaContext schemaContext = moduleContext.tryToCreateSchemaContext().get();
 101             BindingRuntimeContext bindingContext;
 102             bindingContext = BindingRuntimeContext.create(moduleContext, schemaContext);
 103             final BindingNormalizedNodeCodecRegistry codecRegistry =
 104                 new BindingNormalizedNodeCodecRegistry(bindingContext);
 105
 106             /*
 107              * This function needs : - context - scPath.getParent() -
 108              * scPath.getLastComponent().getNamespace(), -
 109              * JsonWriterFactory.createJsonWriter(writer)
 110              */
 111             domWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
 112                 JSONCodecFactorySupplier.DRAFT_LHOTKA_NETMOD_YANG_JSON_02.createSimple(schemaContext),
 113                 scPath.getParent(), scPath.getLastComponent().getNamespace(),
 114                 JsonWriterFactory.createJsonWriter(writer, 2));
 115             // The write part
 116             final BindingStreamEventWriter bindingWriter = codecRegistry.newWriter(id, domWriter);
 117             codecRegistry.getSerializer(id.getTargetType()).serialize(object, bindingWriter);
 118             domWriter.close();
 119             writer.close();
 120         } catch (IOException | YangSyntaxErrorException | ReactorException e) {
 121             throw new GnpyException("In ServiceDataStoreOperationsImpl: exception during json file creation",e);
 122         }
 123         return writer.toString();
 124     }
 125
 126     // Write the json as a string in a file
 127     public void writeStringFile(String jsonString, String fileName) throws GnpyException {
 128         try {
 129             FileWriter file = new FileWriter(fileName);
 130             file.write(jsonString);
 131             file.close();
 132         } catch (IOException e) {
 133             throw new GnpyException("In ServiceDataStoreOperationsImpl : exception during file writing",e);
 134         }
 135     }
 136 }