HONEYCOMB-129: add support for setting mtu

Also updates postman collection with examples of set mtu request.

Setting mtu is not supported for local0 interface:
affected requests from the collection were updated.

Change-Id: I709192e328abad7786d3c87426b00106dac42b73
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

3 files changed, 131 insertions, 14 deletions

diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/factory/InterfacesWriterFactory.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/factory/InterfacesWriterFactory.java
index c90515614..94b7f02d7 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/factory/InterfacesWriterFactory.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/factory/InterfacesWriterFactory.java
@@ -172,7 +172,8 @@ public final class InterfacesWriterFactory implements WriterFactory {
         final Set<InstanceIdentifier<?>> specificIfcTypes = Sets.newHashSet(vhostId, vxlanGpeId, vxlanGpeId, tapId);
 
         // Ethernet =
-        registry.add(new GenericWriter<>(VPP_IFC_AUG_ID.child(Ethernet.class), new EthernetCustomizer(jvpp)));
+        registry.add(new GenericWriter<>(VPP_IFC_AUG_ID.child(Ethernet.class),
+            new EthernetCustomizer(jvpp, ifcNamingContext)));
         // Routing(Execute only after specific interface customizers) =
         registry.addAfter(
                 new GenericWriter<>(VPP_IFC_AUG_ID.child(Routing.class), new RoutingCustomizer(jvpp, ifcNamingContext)),
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizer.java
index ec83df831..a6110d469 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizer.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizer.java
@@ -16,43 +16,69 @@
 
 package io.fd.hc2vpp.v3po.interfaces;
 
-import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
-import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.AbstractInterfaceTypeCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
 import io.fd.honeycomb.translate.write.WriteContext;
 import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceSetMtu;
+import io.fd.vpp.jvpp.core.future.FutureJVppCore;
 import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.Ethernet;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import io.fd.vpp.jvpp.core.future.FutureJVppCore;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class EthernetCustomizer extends FutureJVppCustomizer implements WriterCustomizer<Ethernet> {
+public class EthernetCustomizer extends AbstractInterfaceTypeCustomizer<Ethernet> implements JvppReplyConsumer {
 
     private static final Logger LOG = LoggerFactory.getLogger(EthernetCustomizer.class);
+    private final NamingContext interfaceContext;
 
-    public EthernetCustomizer(final FutureJVppCore vppApi) {
+    public EthernetCustomizer(final FutureJVppCore vppApi, final NamingContext interfaceContext) {
         super(vppApi);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    protected Class<? extends InterfaceType> getExpectedInterfaceType() {
+        return EthernetCsmacd.class;
     }
 
     @Override
-    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Ethernet> id,
+    public void writeInterface(@Nonnull final InstanceIdentifier<Ethernet> id,
                                        @Nonnull final Ethernet dataAfter, @Nonnull final WriteContext writeContext)
-            throws WriteFailedException {
-        LOG.warn("Unsupported, ignoring configuration {}", dataAfter);
-        // VPP API does not support setting MTU
+        throws WriteFailedException {
+        setEthernetAttributes(id, dataAfter, writeContext);
     }
 
     @Override
     public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Ethernet> id,
                                         @Nonnull final Ethernet dataBefore, @Nonnull final Ethernet dataAfter,
-                                        @Nonnull final WriteContext writeContext) {
-        LOG.warn("Unsupported, ignoring configuration {}", dataAfter);
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        setEthernetAttributes(id, dataAfter, writeContext);
     }
 
     @Override
     public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Ethernet> id,
-                                        @Nonnull final Ethernet dataBefore, @Nonnull final WriteContext writeContext) {
-        LOG.warn("Unsupported, ignoring configuration delete {}", id);
+                                        @Nonnull final Ethernet dataBefore, @Nonnull final WriteContext writeContext)
+        throws WriteFailedException.DeleteFailedException {
+        throw new WriteFailedException.DeleteFailedException(id,
+            new UnsupportedOperationException("Removing interface of Ethernet class is not supported"));
+    }
+
+    private void setEthernetAttributes(@Nonnull final InstanceIdentifier<Ethernet> id,
+                                       @Nonnull final Ethernet dataAfter, @Nonnull final WriteContext writeContext)
+        throws WriteFailedException {
+        final String name = id.firstKeyOf(Interface.class).getName();
+        final int index = interfaceContext.getIndex(name, writeContext.getMappingContext());
+        LOG.debug("Setting Ethernet attributes for interface: {}, {}. Ethernet: {}", name, index, dataAfter);
+        final SwInterfaceSetMtu request = new SwInterfaceSetMtu();
+        request.swIfIndex = index;
+        request.mtu = dataAfter.getMtu().shortValue();
+        getReplyForWrite(getFutureJVpp().swInterfaceSetMtu(request).toCompletableFuture(), id);
+        LOG.debug("Ethernet attributes set successfully for: {}, {}. Ethernet: {}", name, index, dataAfter);
     }
 }
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizerTest.java
new file mode 100644
index 000000000..b74357fdc
--- /dev/null
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/EthernetCustomizerTest.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.hc2vpp.v3po.interfaces;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceSetMtu;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceSetMtuReply;
+import org.junit.Test;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.Ethernet;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.EthernetBuilder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class EthernetCustomizerTest extends WriterCustomizerTest {
+
+    private static final String IFC_TEST_INSTANCE = "ifc-test-instance";
+    private static final String IF_NAME = "eth0";
+    private static final int IF_INDEX = 1;
+    private static final InstanceIdentifier<Ethernet> IF_IID =
+        InstanceIdentifier.create(Interfaces.class).child(Interface.class, new InterfaceKey(IF_NAME)).augmentation(
+            VppInterfaceAugmentation.class).child(Ethernet.class);
+    private EthernetCustomizer customizer;
+
+    @Override
+    public void setUpTest() throws Exception {
+        InterfaceTypeTestUtils.setupWriteContext(writeContext, EthernetCsmacd.class);
+        customizer = new EthernetCustomizer(api, new NamingContext("ifcintest", IFC_TEST_INSTANCE));
+        defineMapping(mappingContext, IF_NAME, IF_INDEX, IFC_TEST_INSTANCE);
+    }
+
+    @Test
+    public void testWrite() throws WriteFailedException {
+        when(api.swInterfaceSetMtu(any())).thenReturn(future(new SwInterfaceSetMtuReply()));
+        final int mtu = 1234;
+        customizer.writeCurrentAttributes(IF_IID, ethernet(mtu), writeContext);
+        verify(api).swInterfaceSetMtu(mtuSetRequest(mtu));
+    }
+
+    @Test
+    public void testUpdate() throws WriteFailedException {
+        when(api.swInterfaceSetMtu(any())).thenReturn(future(new SwInterfaceSetMtuReply()));
+        final int mtu = 5678;
+        customizer.updateCurrentAttributes(IF_IID, mock(Ethernet.class), ethernet(mtu), writeContext);
+        verify(api).swInterfaceSetMtu(mtuSetRequest(mtu));
+    }
+
+    private SwInterfaceSetMtu mtuSetRequest(final int mtu) {
+        final SwInterfaceSetMtu request = new SwInterfaceSetMtu();
+        request.swIfIndex = IF_INDEX;
+        request.mtu = (short)mtu;
+        return request;
+    }
+
+    @Test(expected = WriteFailedException.class)
+    public void testDelete() throws WriteFailedException {
+        customizer.deleteCurrentAttributes(IF_IID, mock(Ethernet.class), writeContext);
+    }
+
+    private static Ethernet ethernet(final int mtu) {
+        final EthernetBuilder ethernet = new EthernetBuilder();
+        ethernet.setMtu(mtu);
+        return ethernet.build();
+    }
+
+}
\ No newline at end of file