HC2VPP-126 - Eid context artificial prefix

Artificial prefix for mappings that are not present

Change-Id: I789750e3877918b2e15ba19871da1bf8bc4e207b
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>

5 files changed, 30 insertions, 20 deletions

diff --git a/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/LispModule.java b/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/LispModule.java
index 5324eec2d..3c09f9b1b 100644
--- a/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/LispModule.java
+++ b/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/LispModule.java
@@ -67,12 +67,12 @@ public class LispModule extends AbstractModule {
         LOG.info("Binding Eid context[{}]", LOCAL_MAPPING_CONTEXT);
         bind(EidMappingContext.class)
                 .annotatedWith(Names.named(LOCAL_MAPPING_CONTEXT))
-                .toInstance(new EidMappingContext(LOCAL_MAPPING_CONTEXT));
+                .toInstance(new EidMappingContext(LOCAL_MAPPING_CONTEXT, "local-mapping-"));
 
         LOG.info("Binding Eid context[{}]", REMOTE_MAPPING_CONTEXT);
         bind(EidMappingContext.class)
                 .annotatedWith(Names.named(REMOTE_MAPPING_CONTEXT))
-                .toInstance(new EidMappingContext(REMOTE_MAPPING_CONTEXT));
+                .toInstance(new EidMappingContext(REMOTE_MAPPING_CONTEXT, "remote-mapping-"));
 
         LOG.info("Binding Adjacencies context");
         bind(AdjacenciesMappingContext.class)
diff --git a/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/context/util/EidMappingContext.java b/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/context/util/EidMappingContext.java
index e32138b47..5288a609d 100644
--- a/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/context/util/EidMappingContext.java
+++ b/lisp/lisp2vpp/src/main/java/io/fd/hc2vpp/lisp/context/util/EidMappingContext.java
@@ -17,7 +17,6 @@
 package io.fd.hc2vpp.lisp.context.util;
 
 import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
 
 import com.google.common.base.Optional;
 import io.fd.hc2vpp.lisp.translate.util.EidTranslator;
@@ -36,8 +35,6 @@ import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.eid.mapping
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev170315.MappingId;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Utility class allowing {@link MappingId} to {@link Eid} mapping
@@ -48,16 +45,18 @@ public class EidMappingContext implements EidTranslator {
 
     private final KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.eid.mapping.context.rev160801.contexts.EidMappingContext, EidMappingContextKey>
             namingContextIid;
+    private final String artificialPrefix;
 
     /**
      * Create new naming context
      *
      * @param instanceName name of this context instance. Will be used as list item identifier within context data tree
      */
-    public EidMappingContext(@Nonnull final String instanceName) {
+    public EidMappingContext(@Nonnull final String instanceName, @Nonnull final String artificialPrefix) {
         namingContextIid = InstanceIdentifier.create(Contexts.class).child(
                 org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.eid.mapping.context.rev160801.contexts.EidMappingContext.class,
                 new EidMappingContextKey(instanceName));
+        this.artificialPrefix = artificialPrefix;
     }
 
     /**
@@ -73,7 +72,11 @@ public class EidMappingContext implements EidTranslator {
             @Nonnull final MappingContext mappingContext) {
 
         final Optional<Mappings> read = mappingContext.read(namingContextIid.child(Mappings.class));
-        checkState(read.isPresent(), "Mapping for eid: %s is not present. But should be", remoteEid);
+        if (!read.isPresent()) {
+            final MappingId artificialMappingId = getMappingId(remoteEid.toString(), artificialPrefix);
+            addEid(artificialMappingId, remoteEid, mappingContext);
+            return artificialMappingId;
+        }
 
         return read.get().getMapping()
                 .stream()
@@ -82,6 +85,10 @@ public class EidMappingContext implements EidTranslator {
                 .collect(SINGLE_ITEM_COLLECTOR).getId();
     }
 
+    private static MappingId getMappingId(final String eidValue, final String artificialPrefix) {
+        return new MappingId(artificialPrefix.concat(eidValue));
+    }
+
     /**
      * Retrieve name for mapping stored provided mappingContext instance.
      *
@@ -95,8 +102,11 @@ public class EidMappingContext implements EidTranslator {
             @Nonnull final MappingContext mappingContext) {
 
         final Optional<Mappings> read = mappingContext.read(namingContextIid.child(Mappings.class));
-        //don't create artificial name as naming context, to not create reference to some artificial(in vpp non-existing)eid
-        checkState(read.isPresent(), "Mapping for eid: %s is not present. But should be", eid);
+        if (!read.isPresent()) {
+            final MappingId artificialMappingId = getMappingId(eid.toString(), artificialPrefix);
+            addEid(artificialMappingId, eid, mappingContext);
+            return artificialMappingId;
+        }
 
         return read.get().getMapping().stream()
                 .filter(mapping -> compareEids(mapping.getEid(), eid))
diff --git a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/context/util/EidMappingContextTest.java b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/context/util/EidMappingContextTest.java
index bb70bd358..f4325b00c 100644
--- a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/context/util/EidMappingContextTest.java
+++ b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/context/util/EidMappingContextTest.java
@@ -17,6 +17,9 @@
 package io.fd.hc2vpp.lisp.context.util;
 
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 import io.fd.hc2vpp.lisp.util.EidMappingContextHelper;
 import io.fd.honeycomb.translate.MappingContext;
 import org.junit.Before;
@@ -30,9 +33,6 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev170315.dp.subtable.grouping.local.mappings.local.mapping.Eid;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev170315.dp.subtable.grouping.local.mappings.local.mapping.EidBuilder;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
 public class EidMappingContextTest implements EidMappingContextHelper {
 
     private static final String EID_MAPPING_CONTEXT_NAME = "eidMappingContext";
@@ -51,7 +51,7 @@ public class EidMappingContextTest implements EidMappingContextHelper {
     @Before
     public void init() {
         MockitoAnnotations.initMocks(this);
-        eidMappingContext = new EidMappingContext(EID_MAPPING_CONTEXT_NAME);
+        eidMappingContext = new EidMappingContext(EID_MAPPING_CONTEXT_NAME, "eid-ctx-");
 
         localEid =
                 new EidBuilder().setAddress(new Ipv4Builder().setIpv4(new Ipv4Address("192.168.2.1")).build()).build();
diff --git a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/read/AdjacencyCustomizerTest.java b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/read/AdjacencyCustomizerTest.java
index 8a78c6e76..264fe6ccb 100644
--- a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/read/AdjacencyCustomizerTest.java
+++ b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/read/AdjacencyCustomizerTest.java
@@ -29,14 +29,14 @@ import static org.junit.Assert.assertEquals;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.when;
 
+import io.fd.hc2vpp.common.test.read.ListReaderCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
 import io.fd.hc2vpp.lisp.context.util.AdjacenciesMappingContext;
 import io.fd.hc2vpp.lisp.context.util.EidMappingContext;
 import io.fd.hc2vpp.lisp.translate.util.EidMetadataProvider;
 import io.fd.hc2vpp.lisp.util.AdjacencyMappingContextTestHelper;
 import io.fd.hc2vpp.lisp.util.EidMappingContextHelper;
 import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
-import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
-import io.fd.hc2vpp.common.test.read.ListReaderCustomizerTest;
 import io.fd.vpp.jvpp.core.dto.LispAdjacenciesGetReply;
 import io.fd.vpp.jvpp.core.types.LispAdjacency;
 import java.util.List;
@@ -115,8 +115,8 @@ public class AdjacencyCustomizerTest
 
     @Override
     protected ReaderCustomizer<Adjacency, AdjacencyBuilder> initCustomizer() {
-        return new AdjacencyCustomizer(api, new EidMappingContext("local-mapping-context"),
-                new EidMappingContext("remote-mapping-context"),
+        return new AdjacencyCustomizer(api, new EidMappingContext("local-mapping-context", "local-mapping-"),
+                new EidMappingContext("remote-mapping-context", "remote-mapping-"),
                 new AdjacenciesMappingContext("adjacencies-mapping-context"));
     }
 
diff --git a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/write/AdjacencyCustomizerTest.java b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/write/AdjacencyCustomizerTest.java
index ae5cd351c..91087a879 100644
--- a/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/write/AdjacencyCustomizerTest.java
+++ b/lisp/lisp2vpp/src/test/java/io/fd/hc2vpp/lisp/translate/write/AdjacencyCustomizerTest.java
@@ -30,10 +30,10 @@ import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
 import io.fd.hc2vpp.lisp.context.util.AdjacenciesMappingContext;
 import io.fd.hc2vpp.lisp.context.util.EidMappingContext;
 import io.fd.hc2vpp.lisp.util.EidMappingContextHelper;
-import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
 import io.fd.vpp.jvpp.core.dto.LispAddDelAdjacency;
 import io.fd.vpp.jvpp.core.dto.LispAddDelAdjacencyReply;
 import org.junit.Before;
@@ -87,8 +87,8 @@ public class AdjacencyCustomizerTest extends WriterCustomizerTest implements Eid
 
     @Before
     public void init() {
-        localMappingContext = new EidMappingContext("local-mapping-context");
-        remoteMappingContext = new EidMappingContext("remote-mapping-context");
+        localMappingContext = new EidMappingContext("local-mapping-context", "local-mapping-");
+        remoteMappingContext = new EidMappingContext("remote-mapping-context", "remote-mapping-");
         customizer = new AdjacencyCustomizer(api, localMappingContext, remoteMappingContext, adjacenciesMappingContext);
 
         emptyId = InstanceIdentifier.create(Adjacency.class);