Java tutorial
/* * Copyright (c) 2013 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.factories; import io.netty.buffer.ByteBuf; import io.netty.buffer.UnpooledByteBufAllocator; import java.math.BigInteger; import java.util.ArrayList; import java.util.List; import org.junit.Assert; import org.junit.Test; import org.opendaylight.openflowjava.protocol.impl.deserialization.factories.HelloMessageFactoryTest; import org.opendaylight.openflowjava.protocol.impl.util.BufferHelper; import org.opendaylight.openflowjava.protocol.impl.util.EncodeConstants; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.EcnMatchEntry; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.EcnMatchEntryBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MetadataInstruction; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.MetadataInstructionBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.PortNumberMatchEntry; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.PortNumberMatchEntryBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.TableIdInstruction; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.TableIdInstructionBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.ApplyActions; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.GotoTable; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.WriteMetadata; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.Instruction; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.InstructionBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModCommand; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlags; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.InPhyPort; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.IpEcn; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Nxm0Class; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OpenflowBasicClass; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OxmMatchType; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.match.grouping.MatchBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntries; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntriesBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInput; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder; /** * @author timotej.kubas * @author michal.polkorab */ public class FlowModInputMessageFactoryTest { private static final byte PADDING_IN_FLOW_MOD_MESSAGE = 2; /** * @throws Exception * Testing of {@link FlowModInputMessageFactory} for correct translation from POJO */ @Test public void testFlowModInputMessageFactory() throws Exception { FlowModInputBuilder builder = new FlowModInputBuilder(); BufferHelper.setupHeader(builder, EncodeConstants.OF13_VERSION_ID); byte[] cookie = new byte[] { (byte) 0xFF, 0x01, 0x04, 0x01, 0x06, 0x00, 0x07, 0x01 }; builder.setCookie(new BigInteger(1, cookie)); byte[] cookieMask = new byte[] { (byte) 0xFF, 0x05, 0x00, 0x00, 0x09, 0x30, 0x00, 0x30 }; builder.setCookieMask(new BigInteger(1, cookieMask)); builder.setTableId(new TableId(65L)); builder.setCommand(FlowModCommand.forValue(2)); builder.setIdleTimeout(12); builder.setHardTimeout(0); builder.setPriority(126); builder.setBufferId(2L); builder.setOutPort(new PortNumber(4422L)); builder.setOutGroup(98L); builder.setFlags(new FlowModFlags(true, false, true, false, true)); MatchBuilder matchBuilder = new MatchBuilder(); matchBuilder.setType(OxmMatchType.class); List<MatchEntries> entries = new ArrayList<>(); MatchEntriesBuilder entriesBuilder = new MatchEntriesBuilder(); entriesBuilder.setOxmClass(OpenflowBasicClass.class); entriesBuilder.setOxmMatchField(InPhyPort.class); entriesBuilder.setHasMask(false); PortNumberMatchEntryBuilder portNumberBuilder = new PortNumberMatchEntryBuilder(); portNumberBuilder.setPortNumber(new PortNumber(42L)); entriesBuilder.addAugmentation(PortNumberMatchEntry.class, portNumberBuilder.build()); entries.add(entriesBuilder.build()); entriesBuilder.setOxmClass(Nxm0Class.class); entriesBuilder.setOxmMatchField(IpEcn.class); entriesBuilder.setHasMask(false); EcnMatchEntryBuilder ecnBuilder = new EcnMatchEntryBuilder(); ecnBuilder.setEcn((short) 4); entriesBuilder.addAugmentation(EcnMatchEntry.class, ecnBuilder.build()); entries.add(entriesBuilder.build()); matchBuilder.setMatchEntries(entries); builder.setMatch(matchBuilder.build()); List<Instruction> instructions = new ArrayList<>(); InstructionBuilder insBuilder = new InstructionBuilder(); insBuilder.setType(GotoTable.class); TableIdInstructionBuilder idBuilder = new TableIdInstructionBuilder(); idBuilder.setTableId((short) 43); insBuilder.addAugmentation(TableIdInstruction.class, idBuilder.build()); instructions.add(insBuilder.build()); insBuilder.setType(WriteMetadata.class); MetadataInstructionBuilder metaBuilder = new MetadataInstructionBuilder(); metaBuilder.setMetadata(cookie); metaBuilder.setMetadataMask(cookieMask); insBuilder.addAugmentation(MetadataInstruction.class, metaBuilder.build()); instructions.add(insBuilder.build()); insBuilder = new InstructionBuilder(); insBuilder.setType(ApplyActions.class); insBuilder.addAugmentation(MetadataInstruction.class, metaBuilder.build()); instructions.add(insBuilder.build()); builder.setInstruction(instructions); FlowModInput message = builder.build(); ByteBuf out = UnpooledByteBufAllocator.DEFAULT.buffer(); FlowModInputMessageFactory factory = FlowModInputMessageFactory.getInstance(); factory.messageToBuffer(HelloMessageFactoryTest.VERSION_YET_SUPPORTED, out, message); BufferHelper.checkHeaderV13(out, factory.getMessageType(), factory.computeLength(message)); cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES]; out.readBytes(cookie); Assert.assertEquals("Wrong cookie", message.getCookie(), new BigInteger(1, cookie)); cookieMask = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES]; out.readBytes(cookieMask); Assert.assertEquals("Wrong cookieMask", message.getCookieMask(), new BigInteger(1, cookieMask)); Assert.assertEquals("Wrong tableId", message.getTableId().getValue().intValue(), out.readUnsignedByte()); Assert.assertEquals("Wrong command", message.getCommand().getIntValue(), out.readUnsignedByte()); Assert.assertEquals("Wrong idleTimeOut", message.getIdleTimeout().intValue(), out.readShort()); Assert.assertEquals("Wrong hardTimeOut", message.getHardTimeout().intValue(), out.readShort()); Assert.assertEquals("Wrong priority", message.getPriority().intValue(), out.readUnsignedShort()); Assert.assertEquals("Wrong bufferId", message.getBufferId().intValue(), out.readUnsignedInt()); Assert.assertEquals("Wrong outPort", message.getOutPort().getValue().intValue(), out.readUnsignedInt()); Assert.assertEquals("Wrong outGroup", message.getOutGroup().intValue(), out.readUnsignedInt()); Assert.assertEquals("Wrong flags", message.getFlags(), createFlowModFlagsFromBitmap(out.readUnsignedShort())); out.skipBytes(PADDING_IN_FLOW_MOD_MESSAGE); Assert.assertEquals("Wrong match type", 1, out.readUnsignedShort()); out.skipBytes(EncodeConstants.SIZE_OF_SHORT_IN_BYTES); Assert.assertEquals("Wrong oxm class", 0x8000, out.readUnsignedShort()); short fieldAndMask = out.readUnsignedByte(); Assert.assertEquals("Wrong oxm hasMask", 0, fieldAndMask & 1); Assert.assertEquals("Wrong oxm field", 1, fieldAndMask >> 1); out.skipBytes(EncodeConstants.SIZE_OF_BYTE_IN_BYTES); Assert.assertEquals("Wrong oxm value", 42, out.readUnsignedInt()); Assert.assertEquals("Wrong oxm class", 0, out.readUnsignedShort()); fieldAndMask = out.readUnsignedByte(); Assert.assertEquals("Wrong oxm hasMask", 0, fieldAndMask & 1); Assert.assertEquals("Wrong oxm field", 9, fieldAndMask >> 1); out.skipBytes(EncodeConstants.SIZE_OF_BYTE_IN_BYTES); Assert.assertEquals("Wrong oxm value", 4, out.readUnsignedByte()); out.skipBytes(7); Assert.assertEquals("Wrong instruction type", 1, out.readUnsignedShort()); out.skipBytes(EncodeConstants.SIZE_OF_SHORT_IN_BYTES); Assert.assertEquals("Wrong instruction value", 43, out.readUnsignedByte()); out.skipBytes(3); Assert.assertEquals("Wrong instruction type", 2, out.readUnsignedShort()); out.skipBytes(EncodeConstants.SIZE_OF_SHORT_IN_BYTES); out.skipBytes(EncodeConstants.SIZE_OF_INT_IN_BYTES); byte[] cookieRead = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES]; out.readBytes(cookieRead); byte[] cookieMaskRead = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES]; out.readBytes(cookieMaskRead); Assert.assertArrayEquals("Wrong metadata", cookie, cookieRead); Assert.assertArrayEquals("Wrong metadata mask", cookieMask, cookieMaskRead); Assert.assertEquals("Wrong instruction type", 4, out.readUnsignedShort()); Assert.assertEquals("Wrong instruction length", 8, out.readUnsignedShort()); out.skipBytes(4); Assert.assertTrue("Unread data", out.readableBytes() == 0); } private static FlowModFlags createFlowModFlagsFromBitmap(int input) { final Boolean _oFPFFSENDFLOWREM = (input & (1 << 0)) > 0; final Boolean _oFPFFCHECKOVERLAP = (input & (1 << 1)) > 0; final Boolean _oFPFFRESETCOUNTS = (input & (1 << 2)) > 0; final Boolean _oFPFFNOPKTCOUNTS = (input & (1 << 3)) > 0; final Boolean _oFPFFNOBYTCOUNTS = (input & (1 << 4)) > 0; return new FlowModFlags(_oFPFFCHECKOVERLAP, _oFPFFNOBYTCOUNTS, _oFPFFNOPKTCOUNTS, _oFPFFRESETCOUNTS, _oFPFFSENDFLOWREM); } }