T-API context creation on feature install

[transportpce.git] / tapi / src / main / java / org / opendaylight / transportpce / tapi / utils / TapiContext.java

diff --git a/tapi/src/main/java/org/opendaylight/transportpce/tapi/utils/TapiContext.java b/tapi/src/main/java/org/opendaylight/transportpce/tapi/utils/TapiContext.java
new file mode 100644 (file)
index 0000000..5c195f0
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+++ b/tapi/src/main/java/org/opendaylight/transportpce/tapi/utils/TapiContext.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright © 2021 Nokia, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.transportpce.tapi.utils;
+
+import java.nio.charset.Charset;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.transportpce.common.network.NetworkTransactionService;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.Context;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.ContextBuilder;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.Uuid;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.global._class.Name;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.global._class.NameBuilder;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.connectivity.rev181210.Context1;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.connectivity.rev181210.Context1Builder;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.connectivity.rev181210.context.ConnectivityContextBuilder;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.context.TopologyContextBuilder;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.context.NwTopologyServiceBuilder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TapiContext {
+
+    private static final Logger LOG = LoggerFactory.getLogger(TapiContext.class);
+    public static final String TAPI_CONTEXT = "T-API context";
+    private final NetworkTransactionService networkTransactionService;
+
+    public TapiContext(NetworkTransactionService networkTransactionService) {
+        this.networkTransactionService = networkTransactionService;
+        createTapiContext();
+    }
+
+    private void createTapiContext() {
+        try {
+            // Augmenting tapi context to include topology and connectivity contexts
+            Name contextName = new NameBuilder().setValue(TAPI_CONTEXT).setValueName("TAPI Context Name").build();
+
+            Context1 connectivityContext =
+                new Context1Builder()
+                    .setConnectivityContext(
+                        new ConnectivityContextBuilder()
+                            .setConnection(new HashMap<>())
+                            .setConnectivityService(new HashMap<>())
+                            .build())
+                    .build();
+
+            Name nwTopoServiceName =
+                new NameBuilder()
+                    .setValue("Network Topo Service")
+                    .setValueName("Network Topo Service Name")
+                    .build();
+
+            org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.Context1 topologyContext
+                = new org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.Context1Builder()
+                    .setTopologyContext(new TopologyContextBuilder()
+                        .setNwTopologyService(new NwTopologyServiceBuilder()
+                            .setTopology(new HashMap<>())
+                            .setUuid(
+                                new Uuid(
+                                    UUID.nameUUIDFromBytes("Network Topo Service".getBytes(Charset.forName("UTF-8")))
+                                        .toString()))
+                            .setName(Map.of(nwTopoServiceName.key(), nwTopoServiceName))
+                            .build())
+                        .setTopology(new HashMap<>())
+                        .build())
+                    .build();
+
+            ContextBuilder contextBuilder = new ContextBuilder()
+                    .setName(Map.of(contextName.key(), contextName))
+                    .setUuid(
+                        new Uuid(UUID.nameUUIDFromBytes(TAPI_CONTEXT.getBytes(Charset.forName("UTF-8"))).toString()))
+                    .setServiceInterfacePoint(new HashMap<>())
+                    .addAugmentation(connectivityContext)
+                    .addAugmentation(topologyContext);
+
+            // todo: add notification context
+            InstanceIdentifier<Context> contextIID = InstanceIdentifier.builder(Context.class).build();
+            // put in datastore
+            this.networkTransactionService.put(LogicalDatastoreType.OPERATIONAL, contextIID, contextBuilder.build());
+            this.networkTransactionService.commit().get();
+            LOG.info("TAPI context created successfully.");
+        } catch (InterruptedException | ExecutionException e) {
+            LOG.error("Failed to create TAPI context", e);
+        }
+    }
+
+    public Context getTapiContext() {
+        // TODO: verify this is correct. Should we identify the context IID with the context UUID??
+        //  There is no Identifiable in Context model
+        InstanceIdentifier<Context> contextIID = InstanceIdentifier.builder(Context.class).build();
+        try {
+            Optional<Context> optionalContext = this.networkTransactionService.read(LogicalDatastoreType.OPERATIONAL,
+                    contextIID).get();
+            if (!optionalContext.isPresent()) {
+                LOG.error("Tapi context is not present in datastore");
+                return null;
+            }
+            return optionalContext.get();
+        } catch (InterruptedException | ExecutionException e) {
+            LOG.error("Couldnt read tapi context from datastore", e);
+            return null;
+        }
+    }
+
+    public void deleteTapiContext() {
+
+    }
+
+}