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.collect.FluentIterable;
  12 import java.io.BufferedWriter;
  13 import java.io.FileWriter;
  14 import java.io.IOException;
  15 import java.io.StringWriter;
  16 import java.io.Writer;
  17 import java.nio.charset.StandardCharsets;
  18 import java.util.Collections;
  19 import java.util.Optional;
  20 import org.opendaylight.mdsal.binding.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
  21 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
  22 import org.opendaylight.mdsal.binding.generator.util.BindingRuntimeContext;
  23 import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
  24 import org.opendaylight.transportpce.common.DataStoreContext;
  25 import org.opendaylight.transportpce.common.converter.XMLDataObjectConverter;
  26 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  27 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.OrgOpenroadmDevice;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  33 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
  34 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  35 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  36 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  37 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 public class ServiceDataStoreOperationsImpl implements ServiceDataStoreOperations {
  42
  43     private static final Logger LOG = LoggerFactory.getLogger(ServiceDataStoreOperationsImpl.class);
  44
  45     public ServiceDataStoreOperationsImpl(NetworkTransactionService networkTransactionService) {
  46     }
  47
  48     @Override
  49     public void createXMLFromDevice(DataStoreContext dataStoreContextUtil, OrgOpenroadmDevice device, String output)
  50         throws GnpyException {
  51
  52         if (device != null) {
  53             Optional<NormalizedNode<?, ?>> transformIntoNormalizedNode = null;
  54             XMLDataObjectConverter cwDsU = XMLDataObjectConverter.createWithDataStoreUtil(dataStoreContextUtil);
  55             transformIntoNormalizedNode = cwDsU.toNormalizedNodes(device, OrgOpenroadmDevice.class);
  56             if (!transformIntoNormalizedNode.isPresent()) {
  57                 throw new GnpyException(String.format(
  58                     "In ServiceDataStoreOperationsImpl: Cannot transform the device %s into normalized nodes",
  59                     device.toString()));
  60             }
  61             Writer writerFromDataObject =
  62                 cwDsU.writerFromDataObject(device, OrgOpenroadmDevice.class,cwDsU.dataContainer());
  63             try (BufferedWriter writer = new BufferedWriter(new FileWriter(output,StandardCharsets.UTF_8))) {
  64                 writer.write(writerFromDataObject.toString());
  65             } catch (IOException e) {
  66                 throw new GnpyException(
  67                     String.format("In ServiceDataStoreOperationsImpl : Bufferwriter error %s",e));
  68             }
  69             LOG.debug("GNPy: device xml : {}", writerFromDataObject);
  70         }
  71     }
  72
  73     @Override
  74     public String createJsonStringFromDataObject(final InstanceIdentifier<?> id, DataObject object)
  75         throws GnpyException, Exception {
  76
  77         final SchemaPath scPath = SchemaPath.create(FluentIterable
  78                 .from(id.getPathArguments())
  79                 .transform(input -> BindingReflections.findQName(input.getType())), true);
  80
  81         // Prepare the variables
  82         final ModuleInfoBackedContext moduleContext = ModuleInfoBackedContext.create();
  83         Iterable<? extends YangModuleInfo> moduleInfos = Collections
  84                 .singleton(BindingReflections.getModuleInfo(object.getClass()));
  85         moduleContext.addModuleInfos(moduleInfos);
  86         SchemaContext schemaContext = moduleContext.tryToCreateSchemaContext().get();
  87         BindingRuntimeContext bindingContext;
  88         bindingContext = BindingRuntimeContext.create(moduleContext, schemaContext);
  89         final BindingNormalizedNodeCodecRegistry codecRegistry =
  90             new BindingNormalizedNodeCodecRegistry(bindingContext);
  91
  92         /*
  93          * This function needs : - context - scPath.getParent() -
  94          * scPath.getLastComponent().getNamespace(), -
  95          * JsonWriterFactory.createJsonWriter(writer)
  96          */
  97         final Writer writer = new StringWriter();
  98
  99         try (NormalizedNodeStreamWriter domWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
 100                 JSONCodecFactorySupplier.DRAFT_LHOTKA_NETMOD_YANG_JSON_02.createSimple(schemaContext),
 101                 scPath.getParent(), scPath.getLastComponent().getNamespace(),
 102                 JsonWriterFactory.createJsonWriter(writer, 2));) {
 103             // The write part
 104             codecRegistry.getSerializer(id.getTargetType()).serialize(object, codecRegistry.newWriter(id, domWriter));
 105         } catch (IOException e) {
 106             throw new GnpyException("In ServiceDataStoreOperationsImpl: exception during json file creation",e);
 107         }
 108         return writer.toString();
 109     }
 110
 111     // Write the json as a string in a file
 112     @Override
 113     public void writeStringFile(String jsonString, String fileName) throws GnpyException {
 114         try (FileWriter file = new FileWriter(fileName,StandardCharsets.UTF_8)) {
 115             file.write(jsonString);
 116         } catch (IOException e) {
 117             throw new GnpyException("In ServiceDataStoreOperationsImpl : exception during file writing",e);
 118         }
 119     }
 120 }