--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction;
+
+import java.util.List;
+import java.util.Objects;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Connection transaction.
+ *
+ * <p>
+ * i.e. a class tracking a connection.
+ */
+public class Connection implements Transaction {
+
+ private static final Logger LOG = LoggerFactory.getLogger(Connection.class);
+ private final String deviceId;
+ private final String connectionNumber;
+ private final boolean isOtn;
+
+ public Connection(String deviceId, String connectionNumber, boolean isOtn) {
+ this.deviceId = deviceId;
+ this.connectionNumber = connectionNumber;
+ this.isOtn = isOtn;
+ }
+
+ @Override
+ public boolean rollback(Delete delete) {
+ List<String> supportingInterfaces = delete.deleteCrossConnect(deviceId, connectionNumber, isOtn);
+
+ if (supportingInterfaces == null || supportingInterfaces.size() == 0) {
+ return false;
+ }
+
+ LOG.info("Supporting interfaces {} affected by rollback on {} {}",
+ String.join(", ", supportingInterfaces), deviceId, connectionNumber);
+
+ return true;
+
+ }
+
+ @Override
+ public String description() {
+ return String.format("Connection %s connection number %s isOtn %s", deviceId,
+ connectionNumber, isOtn);
+ }
+
+ @Override
+ public boolean equals(Object object) {
+ if (this == object) {
+ return true;
+ }
+ if (!(object instanceof Connection)) {
+ return false;
+ }
+ Connection that = (Connection) object;
+ return isOtn == that.isOtn && Objects.equals(deviceId, that.deviceId)
+ && Objects.equals(connectionNumber, that.connectionNumber);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(deviceId, connectionNumber, isOtn);
+ }
+}
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction;
+
+import java.util.Objects;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+public class DeviceInterface implements Transaction {
+
+ private final String nodeId;
+
+ private final String interfaceId;
+
+ public DeviceInterface(String nodeId, String interfaceId) {
+ this.nodeId = nodeId;
+ this.interfaceId = interfaceId;
+ }
+
+ @Override
+ public boolean rollback(Delete delete) {
+ return delete.deleteInterface(nodeId, interfaceId);
+ }
+
+ @Override
+ public String description() {
+ return String.format("Node: %s interface id: %s", nodeId, interfaceId);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(nodeId, interfaceId);
+ }
+
+ @Override
+ public boolean equals(Object object) {
+ if (this == object) {
+ return true;
+ }
+ if (!(object instanceof DeviceInterface)) {
+ return false;
+ }
+ DeviceInterface that = (DeviceInterface) object;
+ return Objects.equals(nodeId, that.nodeId) && Objects.equals(interfaceId,
+ that.interfaceId);
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction;
+
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+/**
+ * Any class wishing to keep track of transactions
+ * may implement this interface.
+ */
+public interface Transaction {
+
+ /**
+ * Rollback this transaction.
+ */
+ boolean rollback(Delete delete);
+
+ String description();
+
+ int hashCode();
+
+ boolean equals(Object object);
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+import java.util.List;
+
+/**
+ * A class capable of deleting service connections/interfaces
+ * may implement this interface.
+ */
+public interface Delete {
+
+ /**
+ * Delete cross connection.
+ * Typically, deleted before interfaces.
+ */
+ List<String> deleteCrossConnect(String deviceId, String connectionNumber, boolean isOtn);
+
+ /**
+ * Delete an interface.
+ * Typically, deleted after the cross connection.
+ */
+ boolean deleteInterface(String nodeId, String interfaceId);
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.transportpce.common.crossconnect.CrossConnect;
+import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
+import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DeleteService implements Delete {
+
+ private final CrossConnect crossConnect;
+ private final OpenRoadmInterfaces openRoadmInterfaces;
+
+ private final Subscriber subscriber;
+
+ private static final Logger LOG = LoggerFactory.getLogger(DeleteService.class);
+
+ public DeleteService(
+ CrossConnect crossConnect,
+ OpenRoadmInterfaces openRoadmInterfaces,
+ Subscriber subscriber) {
+ this.crossConnect = crossConnect;
+ this.openRoadmInterfaces = openRoadmInterfaces;
+ this.subscriber = subscriber;
+ }
+
+ @Override
+ public @NonNull List<String> deleteCrossConnect(String deviceId, String connectionNumber,
+ boolean isOtn) {
+ List<String> result = crossConnect.deleteCrossConnect(deviceId, connectionNumber, isOtn);
+
+ if (result == null) {
+ subscriber.result(false, deviceId, connectionNumber);
+ return new ArrayList<>();
+ }
+
+ subscriber.result(true, deviceId, connectionNumber);
+
+ return result;
+ }
+
+ @Override
+ public boolean deleteInterface(String nodeId, String interfaceId) {
+ try {
+ openRoadmInterfaces.deleteInterface(nodeId, interfaceId);
+
+ subscriber.result(true, nodeId, interfaceId);
+ return true;
+ } catch (OpenRoadmInterfaceException e) {
+ LOG.error("Failed rolling back {} {}", nodeId, interfaceId);
+ subscriber.result(false, nodeId, interfaceId);
+ return false;
+ }
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+public class DeleteSubscriber implements Subscriber {
+
+ private final Result result;
+
+ public DeleteSubscriber(Result result) {
+ this.result = result;
+ }
+
+ @Override
+ public void result(Boolean success, String nodeId, String interfaceId) {
+
+ result.add(success, nodeId, interfaceId);
+
+ }
+
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.RendererRollbackOutput;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.RendererRollbackOutputBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.renderer.rollback.output.FailedToRollback;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.renderer.rollback.output.FailedToRollbackBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.renderer.rollback.output.FailedToRollbackKey;
+
+public class FailedRollbackResult implements Result {
+
+ private final Map<String, Set<String>> failedRollback = Collections.synchronizedMap(
+ new HashMap<>());
+
+ @Override
+ public boolean add(boolean success, String nodeId, String interfaceId) {
+
+ if (success) {
+ return false;
+ }
+
+ if (!failedRollback.containsKey(nodeId)) {
+ failedRollback.put(nodeId, new LinkedHashSet<>());
+ }
+
+ return failedRollback.get(nodeId).add(interfaceId);
+ }
+
+ @Override
+ public RendererRollbackOutput renderRollbackOutput() {
+
+ Map<FailedToRollbackKey, FailedToRollback> failedToRollbackList = new HashMap<>();
+
+ for (Entry<String, Set<String>> entry : failedRollback.entrySet()) {
+
+ FailedToRollback failedToRollack = new FailedToRollbackBuilder()
+ .withKey(new FailedToRollbackKey(entry.getKey()))
+ .setNodeId(entry.getKey())
+ .setInterface(entry.getValue())
+ .build();
+
+ failedToRollbackList.put(failedToRollack.key(), failedToRollack);
+
+ }
+
+ return new RendererRollbackOutputBuilder()
+ .setSuccess(failedRollback.isEmpty())
+ .setFailedToRollback(failedToRollbackList)
+ .build();
+
+ }
+
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.RendererRollbackOutput;
+
+public interface Result {
+
+ boolean add(boolean success, String nodeId, String interfaceId);
+
+ RendererRollbackOutput renderRollbackOutput();
+
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.delete;
+
+public interface Subscriber {
+
+ void result(Boolean success, String nodeId, String interfaceId);
+
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.history;
+
+import java.util.List;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.Transaction;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+public interface History {
+
+ /**
+ * Add transaction.
+ *
+ * <p>
+ * Only accepts the transaction if this History
+ * object doesn't already contain the object.
+ *
+ * @return true if the transaction was added.
+ */
+ boolean add(Transaction transaction);
+
+ /**
+ * A list of transactions.
+ *
+ * <p>
+ * Will only accept unique transactions.
+ * @return true if all transactions was added. false if one or more transactions was rejected.
+ */
+ boolean add(List<Transaction> transactions);
+
+ /**
+ * Add an array of interface transactions.
+ *
+ * <p>
+ * Duplicate interface ids, null or empty strings
+ * are silently ignored.
+ * @return may return false
+ */
+ boolean addInterfaces(String nodeId, String interfaceId);
+
+ /**
+ * Add an array of interface transactions.
+ *
+ * <p>
+ * Duplicate interface ids, null or empty strings
+ * are silently ignored.
+ * @return may return false
+ */
+ boolean addInterfaces(String nodeId, String[] interfaceIds);
+
+ /**
+ * Add a list of interface transactions.
+ *
+ * <p>
+ * Duplicate interface ids, null or empty strings
+ * are silently ignored.
+ */
+ boolean addInterfaces(String nodeId, List<String> interfaceIds);
+
+ /**
+ * Rollback all transactions.
+ *
+ * <p>
+ * Typically, the transactions are rolled back in reverse
+ * order, but the implementing class may choose a different
+ * logic.
+ */
+ boolean rollback(Delete delete);
+
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.history;
+
+import java.util.List;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.Transaction;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Goldfish implementation of the History interface.
+ *
+ * <p>
+ * This implementation simply doesn't track anything.
+ * Most useful for backwards compatibility reasons.
+ */
+public class NonStickHistoryMemory implements History {
+
+ private static final Logger LOG = LoggerFactory.getLogger(NonStickHistoryMemory.class);
+
+ @Override
+ public boolean add(Transaction transaction) {
+ LOG.warn("Transaction history disabled. Ignoring '{}'.", transaction.description());
+ return false;
+ }
+
+ @Override
+ public boolean add(List<Transaction> transactions) {
+ LOG.warn("Transaction history disabled. No rollback executed.");
+ return false;
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, String interfaceId) {
+ LOG.warn("Transaction history disabled.");
+ return false;
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, String[] interfaceIds) {
+ LOG.warn("Transaction history disabled.");
+ return false;
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, List<String> interfaceIds) {
+ LOG.warn("Transaction history disabled.");
+ return false;
+ }
+
+ @Override
+ public boolean rollback(Delete delete) {
+ LOG.warn("Transaction history disabled. No rollback executed.");
+ return false;
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.history;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.DeviceInterface;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.Transaction;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A class keeping track of transaction history.
+ *
+ * <p>
+ * A transaction can be something like an interface or a roadm connection, that may need to be
+ * rolled back in the future.
+ */
+public class TransactionHistory implements History {
+
+ private static final Logger LOG = LoggerFactory.getLogger(TransactionHistory.class);
+ Set<Transaction> transactionHistory = Collections.synchronizedSet(new LinkedHashSet<>());
+
+ @Override
+ public boolean add(Transaction transaction) {
+
+ boolean result = transactionHistory.add(transaction);
+
+ if (result) {
+ LOG.info("Adding {}", transaction.description());
+ } else {
+ LOG.warn("Transaction {} not added.", transaction.description());
+ }
+
+ return result;
+ }
+
+ @Override
+ public boolean add(List<Transaction> transactions) {
+ Set<Boolean> results = new HashSet<>(transactions.size());
+
+ for (Transaction transaction : transactions) {
+ results.add(add(transaction));
+ }
+
+ return results.stream().allMatch(i -> (i.equals(Boolean.TRUE)));
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, String interfaceId) {
+ return addInterfaces(nodeId, Collections.singletonList(interfaceId));
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, String[] interfaceIds) {
+
+ return addInterfaces(nodeId, Arrays.asList(interfaceIds));
+
+ }
+
+ @Override
+ public boolean addInterfaces(String nodeId, List<String> interfaceIds) {
+
+ Set<Boolean> results = new HashSet<>();
+ Set<String> unique = new LinkedHashSet<>();
+
+ for (String interfaceId : interfaceIds) {
+ if (interfaceId != null && !interfaceId.trim().isEmpty()) {
+ unique.add(interfaceId.trim());
+ }
+ }
+
+ for (String interfaceId : unique) {
+ results.add(this.add(new DeviceInterface(nodeId, interfaceId)));
+ }
+
+ return results.stream().allMatch(i -> (i.equals(Boolean.TRUE)));
+
+ }
+
+ @Override
+ public boolean rollback(Delete delete) {
+
+ LOG.info("History contains {} items. Rolling them back in reverse order.",
+ transactionHistory.size());
+
+ List<Transaction> reverse = new ArrayList<>(transactionHistory);
+
+ Collections.reverse(reverse);
+
+ boolean success = true;
+
+ for (Transaction transaction : reverse) {
+ LOG.info("Rolling back {}", transaction.description());
+ if (!transaction.rollback(delete)) {
+ success = false;
+ }
+ }
+
+ return success;
+
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+class ConnectionTest {
+
+ @Test
+ void rollback() {
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteCrossConnect("ROADM-A", "DEG1", false))
+ .thenReturn(List.of("Interface1"));
+
+ Connection n1 = new Connection("ROADM-A", "DEG1", false);
+
+ Assert.assertTrue(n1.rollback(delete));
+
+ Mockito.verify(delete, Mockito.times(1))
+ .deleteCrossConnect("ROADM-A", "DEG1", false);
+ }
+
+ @Test
+ void testTwoObjectsWithSameInformationIsEqual() {
+ Connection n1 = new Connection("ROADM-A", "DEG1", false);
+ Connection n2 = new Connection("ROADM-A", "DEG1", false);
+
+ Assert.assertTrue(n1.equals(n2));
+ }
+
+ @Test
+ void testTwoObjectsWithDifferentInformationIsNotEqual() {
+ Connection n1 = new Connection("ROADM-A", "DEG1", true);
+ Connection n2 = new Connection("ROADM-A", "DEG1", false);
+
+ Assert.assertFalse(n1.equals(n2));
+ }
+
+ @Test
+ void testTwoDifferentRoadmNodesAreNotEqual() {
+ Connection n1 = new Connection("ROADM-A", "DEG1", false);
+ Connection n2 = new Connection("ROADM-B", "DEG1", false);
+
+ Assert.assertFalse(n1.equals(n2));
+ }
+
+
+ @Test
+ void deleteReturnNull() {
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteCrossConnect("ROADM-A", "DEG1", false))
+ .thenReturn(null);
+
+ Connection n1 = new Connection("ROADM-A", "DEG1", false);
+
+ Assert.assertFalse(n1.rollback(delete));
+
+ Mockito.verify(delete, Mockito.times(1))
+ .deleteCrossConnect("ROADM-A", "DEG1", false);
+ }
+
+ @Test
+ void deleteReturnEmptyList() {
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteCrossConnect("ROADM-A", "DEG1", false))
+ .thenReturn(new ArrayList<>());
+
+ Connection n1 = new Connection("ROADM-A", "DEG1", false);
+
+ Assert.assertFalse(n1.rollback(delete));
+
+ Mockito.verify(delete, Mockito.times(1))
+ .deleteCrossConnect("ROADM-A", "DEG1", false);
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction;
+
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+class DeviceInterfaceTest {
+
+ @Test
+ void rollback() {
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteInterface("ROADM-A", "DEG1")).thenReturn(true);
+
+ DeviceInterface n1 = new DeviceInterface("ROADM-A", "DEG1");
+ Assert.assertTrue(n1.rollback(delete));
+
+ Mockito.verify(delete, Mockito.times(1)).deleteInterface("ROADM-A", "DEG1");
+ }
+
+ @Test
+ void testTwoInterfacesAreEqual() {
+ DeviceInterface n1 = new DeviceInterface("ROADM-A", "DEG1");
+ DeviceInterface n2 = new DeviceInterface("ROADM-A", "DEG1");
+
+ Assert.assertTrue(n1.equals(n2));
+ }
+
+ @Test
+ void testTwoInterfacesAreNotEqual() {
+ DeviceInterface n1 = new DeviceInterface("ROADM-A", "DEG1");
+ DeviceInterface n2 = new DeviceInterface("ROADM-B", "DEG1");
+
+ Assert.assertFalse(n1.equals(n2));
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright © 2024 Smartoptics 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.renderer.provisiondevice.transaction.history;
+
+import java.util.List;
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+import org.mockito.InOrder;
+import org.mockito.Mockito;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.DeviceInterface;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.Transaction;
+import org.opendaylight.transportpce.renderer.provisiondevice.transaction.delete.Delete;
+
+class TransactionHistoryTest {
+
+ @Test
+ void add() {
+ Transaction transaction = Mockito.mock(Transaction.class);
+ History history = new TransactionHistory();
+
+ Assert.assertTrue(history.add(transaction));
+ }
+
+ @Test
+ void testDuplicateTransactionIsIgnored() {
+
+ Transaction t1 = new DeviceInterface("ROADM-A", "DEG1");
+ Transaction t2 = new DeviceInterface("ROADM-A", "DEG1");
+
+ History history = new TransactionHistory();
+
+ history.add(t1);
+ Assert.assertFalse(history.add(t2));
+ }
+
+ @Test
+ void testAddCollectionOfUniqueTransactions() {
+ Transaction t1 = new DeviceInterface("ROADM-A", "DEG1");
+ Transaction t2 = new DeviceInterface("ROADM-A", "DEG2");
+
+ List<Transaction> transactions = List.of(t1, t2);
+
+ History history = new TransactionHistory();
+
+ Assert.assertTrue(history.add(transactions));
+ }
+
+ @Test
+ void testAddCollectionOfDuplicateTransactions() {
+ Transaction t1 = new DeviceInterface("ROADM-A", "DEG1");
+ Transaction t2 = new DeviceInterface("ROADM-A", "DEG1");
+
+ List<Transaction> transactions = List.of(t1, t2);
+
+ History history = new TransactionHistory();
+
+ Assert.assertFalse(history.add(transactions));
+ }
+
+ @Test
+ void testAddUniqueStringOfInterfaceIds() {
+ String nodeId = "ROADM-A";
+ String[] interfaces = new String[]{"DEG1", "DEG2"};
+
+ History history = new TransactionHistory();
+
+ Assert.assertTrue(history.addInterfaces(nodeId, interfaces));
+ }
+
+ @Test
+ void testAddDuplicateStringOfInterfaceIds() {
+ String nodeId = "ROADM-A";
+ String[] interfaces = new String[]{"DEG1", "DEG1"};
+
+ History history = new TransactionHistory();
+
+ Assert.assertTrue(history.addInterfaces(nodeId, interfaces));
+
+ }
+
+ @Test
+ void testAddDuplicateListOfInterfaceIds() {
+ String nodeId = "ROADM-A";
+ List<String> interfaces = List.of("DEG1", "DEG1");
+
+ History history = new TransactionHistory();
+
+ Assert.assertTrue(history.addInterfaces(nodeId, interfaces));
+
+ }
+
+ @Test
+ void rollbackOneInterface() {
+
+ String nodeId = "ROADM-A";
+ List<String> interfaces = List.of("DEG1", "DEG1");
+
+ History history = new TransactionHistory();
+ history.addInterfaces(nodeId, interfaces);
+
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteInterface("ROADM-A", "DEG1")).thenReturn(true);
+
+ Assert.assertTrue(history.rollback(delete));
+
+ //Although the same interface was added twice, we only rollback once.
+ Mockito.verify(delete, Mockito.times(1))
+ .deleteInterface("ROADM-A", "DEG1");
+ }
+
+ @Test
+ void rollbackTwoInterfacesInReverseOrderTheyWereAdded() {
+
+ String nodeId = "ROADM-A";
+
+ //Note DEG1 is added before DEG2
+ List<String> interfaces = List.of("DEG1", "DEG2");
+
+ History history = new TransactionHistory();
+ history.addInterfaces(nodeId, interfaces);
+
+ Delete delete = Mockito.mock(Delete.class);
+ Mockito.when(delete.deleteInterface("ROADM-A", "DEG1")).thenReturn(true);
+ Mockito.when(delete.deleteInterface("ROADM-A", "DEG2")).thenReturn(true);
+
+ Assert.assertTrue(history.rollback(delete));
+
+ //The rollback occurs in the reverse order.
+ // i.e. DEG2 before DEG1.
+ InOrder inOrder = Mockito.inOrder(delete);
+ inOrder.verify(delete, Mockito.times(1))
+ .deleteInterface("ROADM-A", "DEG2");
+ inOrder.verify(delete, Mockito.times(1))
+ .deleteInterface("ROADM-A", "DEG1");
+
+ }
+}
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