Java tutorial
/* * Copyright (c) 2015 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.serialization.match; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import io.netty.buffer.ByteBuf; import io.netty.buffer.PooledByteBufAllocator; import org.junit.Assert; import org.junit.Test; import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants; import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants; import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.Ipv6Src; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.Ipv6SrcCaseBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.ipv6.src._case.Ipv6SrcBuilder; /** * @author michal.polkorab * */ public class OxmIpv6SrcSerializerTest { OxmIpv6SrcSerializer serializer = new OxmIpv6SrcSerializer(); /** * Test correct serialization */ @Test public void testSerializeWithoutMask() { MatchEntryBuilder builder = prepareMatchEntry(false, "aaaa:bbbb:1111:2222::"); ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer(); serializer.serialize(builder.build(), buffer); checkHeader(buffer, false); Assert.assertEquals("Wrong ipv6 address", 43690, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 48059, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 4369, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 8738, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); assertTrue("Unexpected data", buffer.readableBytes() == 0); } /** * Test correct serialization */ @Test public void testSerialize() { MatchEntryBuilder builder = prepareMatchEntry(false, "::aaaa:bbbb:1111:2222"); ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer(); serializer.serialize(builder.build(), buffer); checkHeader(buffer, false); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 0, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 43690, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 48059, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 4369, buffer.readUnsignedShort()); Assert.assertEquals("Wrong ipv6 address", 8738, buffer.readUnsignedShort()); assertTrue("Unexpected data", buffer.readableBytes() == 0); } private static MatchEntryBuilder prepareMatchEntry(boolean hasMask, String value) { MatchEntryBuilder builder = prepareHeader(hasMask); Ipv6SrcCaseBuilder caseBuilder = new Ipv6SrcCaseBuilder(); Ipv6SrcBuilder srcBuilder = new Ipv6SrcBuilder(); srcBuilder.setIpv6Address(new Ipv6Address(value)); if (hasMask) { srcBuilder.setMask(new byte[] { 15, 15, 0, 0 }); } caseBuilder.setIpv6Src(srcBuilder.build()); builder.setMatchEntryValue(caseBuilder.build()); return builder; } private static MatchEntryBuilder prepareHeader(boolean hasMask) { MatchEntryBuilder builder = new MatchEntryBuilder(); builder.setOxmClass(OpenflowBasicClass.class); builder.setOxmMatchField(Ipv6Src.class); builder.setHasMask(hasMask); return builder; } private static void checkHeader(ByteBuf buffer, boolean hasMask) { assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, buffer.readUnsignedShort()); short fieldAndMask = buffer.readUnsignedByte(); assertEquals("Wrong oxm-field", OxmMatchConstants.IPV6_SRC, fieldAndMask >>> 1); assertEquals("Wrong hasMask", hasMask, (fieldAndMask & 1) != 0); if (hasMask) { assertEquals("Wrong length", 2 * EncodeConstants.SIZE_OF_IPV6_ADDRESS_IN_BYTES, buffer.readUnsignedByte()); } else { assertEquals("Wrong length", EncodeConstants.SIZE_OF_IPV6_ADDRESS_IN_BYTES, buffer.readUnsignedByte()); } } }