openflowplugin-impl/src/test/java/org/opendaylight/openflowplugin/impl/registry/flow/DeviceFlowRegistryImplTest.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.openflowplugin.impl.registry.flow;
  10
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.mockito.Matchers.any;
  14 import static org.mockito.Mockito.inOrder;
  15 import static org.mockito.Mockito.times;
  16 import static org.mockito.Mockito.verify;
  17 import static org.mockito.Mockito.when;
  18
  19 import com.google.common.base.Optional;
  20 import com.google.common.util.concurrent.Futures;
  21 import java.math.BigInteger;
  22 import java.util.Collections;
  23 import java.util.Map;
  24 import java.util.regex.Matcher;
  25 import java.util.regex.Pattern;
  26 import org.junit.Assert;
  27 import org.junit.Before;
  28 import org.junit.Test;
  29 import org.junit.runner.RunWith;
  30 import org.mockito.InOrder;
  31 import org.mockito.Mock;
  32 import org.mockito.runners.MockitoJUnitRunner;
  33 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  34 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  35 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  36 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowDescriptor;
  37 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowRegistryKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  51 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  52 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  53
  54 /**
  55  * Test for {@link DeviceFlowRegistryImpl}.
  56  */
  57 @RunWith(MockitoJUnitRunner.class)
  58 public class DeviceFlowRegistryImplTest {
  59     private static final String NODE_ID = "openflow:1";
  60     private static final Pattern INDEX_PATTERN = Pattern.compile("^#UF\\$TABLE\\*1-([0-9]+)$");
  61     private static final Short DUMMY_TABLE_ID = 1;
  62
  63     private DeviceFlowRegistryImpl deviceFlowRegistry;
  64     private FlowRegistryKey key;
  65     private FlowDescriptor descriptor;
  66     private KeyedInstanceIdentifier<Node, NodeKey> nodeInstanceIdentifier;
  67     @Mock
  68     private DataBroker dataBroker;
  69     @Mock
  70     private ReadOnlyTransaction readOnlyTransaction;
  71
  72     @Before
  73     public void setUp() throws Exception {
  74         nodeInstanceIdentifier = InstanceIdentifier.create(Nodes.class).child(Node.class, new NodeKey(new NodeId(NODE_ID)));
  75         when(dataBroker.newReadOnlyTransaction()).thenReturn(readOnlyTransaction);
  76         deviceFlowRegistry = new DeviceFlowRegistryImpl(dataBroker, nodeInstanceIdentifier);
  77         final FlowAndStatisticsMapList flowStats = TestFlowHelper.createFlowAndStatisticsMapListBuilder(1).build();
  78         key = FlowRegistryKeyFactory.create(flowStats);
  79         descriptor = FlowDescriptorFactory.create(key.getTableId(), new FlowId("ut:1"));
  80
  81         Assert.assertEquals(0, deviceFlowRegistry.getAllFlowDescriptors().size());
  82         deviceFlowRegistry.store(key, descriptor);
  83         Assert.assertEquals(1, deviceFlowRegistry.getAllFlowDescriptors().size());
  84     }
  85
  86     @Test
  87     public void testFill() throws Exception {
  88         final InstanceIdentifier<FlowCapableNode> path = nodeInstanceIdentifier.augmentation(FlowCapableNode.class);
  89
  90         final Flow flow = new FlowBuilder()
  91                 .setTableId((short)1)
  92                 .setPriority(10)
  93                 .setCookie(new FlowCookie(BigInteger.TEN))
  94                 .setId(new FlowId("HELLO"))
  95                 .build();
  96
  97         final Table table = new TableBuilder()
  98                 .setFlow(Collections.singletonList(flow))
  99                 .build();
 100
 101         final FlowCapableNode flowCapableNode = new FlowCapableNodeBuilder()
 102                 .setTable(Collections.singletonList(table))
 103                 .build();
 104
 105         final Map<FlowRegistryKey, FlowDescriptor> allFlowDescriptors = testFill(path, flowCapableNode);
 106         final FlowRegistryKey key = FlowRegistryKeyFactory.create(flow);
 107
 108         InOrder order = inOrder(dataBroker, readOnlyTransaction);
 109         order.verify(dataBroker).newReadOnlyTransaction();
 110         order.verify(readOnlyTransaction).read(LogicalDatastoreType.CONFIGURATION, path);
 111         order.verify(dataBroker).newReadOnlyTransaction();
 112         order.verify(readOnlyTransaction).read(LogicalDatastoreType.OPERATIONAL, path);
 113         assertTrue(allFlowDescriptors.containsKey(key));
 114
 115         deviceFlowRegistry.removeDescriptor(key);
 116     }
 117
 118     @Test
 119     public void testFailedFill() throws Exception {
 120         final InstanceIdentifier<FlowCapableNode> path = nodeInstanceIdentifier.augmentation(FlowCapableNode.class);
 121
 122         testFill(path, null);
 123
 124         testFill(path, new FlowCapableNodeBuilder()
 125                 .setTable(null)
 126                 .build());
 127
 128         testFill(path, new FlowCapableNodeBuilder()
 129                 .setTable(Collections.singletonList(null))
 130                 .build());
 131
 132         testFill(path, new FlowCapableNodeBuilder()
 133                 .setTable(Collections.singletonList(new TableBuilder()
 134                         .setFlow(null)
 135                         .build()))
 136                 .build());
 137
 138         testFill(path, new FlowCapableNodeBuilder()
 139                 .setTable(Collections.singletonList(new TableBuilder()
 140                         .setFlow(Collections.singletonList(null))
 141                         .build()))
 142                 .build());
 143
 144         testFill(path, new FlowCapableNodeBuilder()
 145                 .setTable(Collections.singletonList(new TableBuilder()
 146                         .setFlow(Collections.singletonList(new FlowBuilder()
 147                                 .setId(null)
 148                                 .build()))
 149                         .build()))
 150                 .build());
 151
 152         verify(dataBroker, times(12)).newReadOnlyTransaction();
 153         verify(readOnlyTransaction, times(6)).read(LogicalDatastoreType.CONFIGURATION, path);
 154         verify(readOnlyTransaction, times(6)).read(LogicalDatastoreType.OPERATIONAL, path);
 155
 156         Assert.assertEquals(1, deviceFlowRegistry.getAllFlowDescriptors().size());
 157     }
 158
 159     private Map<FlowRegistryKey, FlowDescriptor> testFill(final InstanceIdentifier<FlowCapableNode> path,
 160                                                           final FlowCapableNode flowCapableNode) throws Exception {
 161         when(readOnlyTransaction.read(any(), any())).thenReturn(Futures.immediateCheckedFuture(Optional.fromNullable(flowCapableNode)));
 162         deviceFlowRegistry.fill().get();
 163         return deviceFlowRegistry.getAllFlowDescriptors();
 164     }
 165
 166     @Test
 167     public void testRetrieveIdForFlow() throws Exception {
 168         Assert.assertEquals(descriptor, deviceFlowRegistry.retrieveIdForFlow(key));
 169     }
 170
 171     @Test
 172     public void testStore() throws Exception {
 173         //store the same key with different value
 174         final FlowDescriptor descriptor2 = FlowDescriptorFactory.create(key.getTableId(), new FlowId("ut:2"));
 175         deviceFlowRegistry.store(key, descriptor2);
 176         Assert.assertEquals(1, deviceFlowRegistry.getAllFlowDescriptors().size());
 177         Assert.assertEquals("ut:2", deviceFlowRegistry.retrieveIdForFlow(key).getFlowId().getValue());
 178
 179         // store new key with old value
 180         final FlowAndStatisticsMapList flowStats = TestFlowHelper.createFlowAndStatisticsMapListBuilder(2).build();
 181         final FlowRegistryKey key2 = FlowRegistryKeyFactory.create(flowStats);
 182         deviceFlowRegistry.store(key2, descriptor);
 183         Assert.assertEquals(2, deviceFlowRegistry.getAllFlowDescriptors().size());
 184         Assert.assertEquals("ut:1", deviceFlowRegistry.retrieveIdForFlow(key2).getFlowId().getValue());
 185     }
 186
 187     @Test
 188     public void testStoreIfNecessary() throws Exception {
 189         FlowId newFlowId;
 190
 191         //store existing key
 192         newFlowId = deviceFlowRegistry.storeIfNecessary(key);
 193
 194         Assert.assertEquals(1, deviceFlowRegistry.getAllFlowDescriptors().size());
 195         Assert.assertEquals(descriptor, deviceFlowRegistry.retrieveIdForFlow(key));
 196         Assert.assertEquals(descriptor.getFlowId(), newFlowId);
 197
 198         //store new key
 199         final String alienPrefix = "#UF$TABLE*2-";
 200         final FlowRegistryKey key2 = FlowRegistryKeyFactory.create(TestFlowHelper.createFlowAndStatisticsMapListBuilder(2).build());
 201         newFlowId = deviceFlowRegistry.storeIfNecessary(key2);
 202
 203         Assert.assertTrue(newFlowId.getValue().startsWith(alienPrefix));
 204         Assert.assertTrue(deviceFlowRegistry.retrieveIdForFlow(key2).getFlowId().getValue().startsWith(alienPrefix));
 205         Assert.assertEquals(2, deviceFlowRegistry.getAllFlowDescriptors().size());
 206     }
 207
 208     @Test
 209     public void testRemoveDescriptor() throws Exception {
 210         deviceFlowRegistry.removeDescriptor(key);
 211         Assert.assertEquals(0, deviceFlowRegistry.getAllFlowDescriptors().size());
 212     }
 213
 214     @Test
 215     public void testClose() throws Exception {
 216         deviceFlowRegistry.close();
 217         Assert.assertEquals(0, deviceFlowRegistry.getAllFlowDescriptors().size());
 218     }
 219
 220     @Test
 221     public void createAlienFlowIdTest() throws Exception {
 222         final String alienFlowId1 = DeviceFlowRegistryImpl.createAlienFlowId(DUMMY_TABLE_ID).getValue();
 223         final Integer index1 = parseIndex(alienFlowId1);
 224         final String alienFlowId2 = DeviceFlowRegistryImpl.createAlienFlowId(DUMMY_TABLE_ID).getValue();
 225         final Integer index2 = parseIndex(alienFlowId2);
 226
 227         assertNotNull("index1 parsing failed: " + alienFlowId1, index1);
 228         assertNotNull("index2 parsing failed: " + alienFlowId2, index2);
 229         assertTrue(index1 < index2);
 230     }
 231
 232     private static Integer parseIndex(String alienFlowIdValue) {
 233         final Matcher mach = INDEX_PATTERN.matcher(alienFlowIdValue);
 234
 235         if (mach.find()) {
 236             return Integer.valueOf(mach.group(1));
 237         }
 238
 239         return null;
 240     }
 241 }