Java tutorial
/* * Copyright (c) 2016 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.deserialization.experimenter; import io.netty.buffer.ByteBuf; import java.util.ArrayList; import java.util.List; import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry; import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector; import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer; import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants; import org.opendaylight.openflowjava.util.ExperimenterDeserializerKeyFactory; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.BundleControlType; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.BundleFlags; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.BundleId; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.BundlePropertyType; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.bundle.properties.BundleProperty; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.bundle.properties.BundlePropertyBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.bundle.properties.bundle.property.bundle.property.entry.BundleExperimenterPropertyBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.bundle.properties.bundle.property.bundle.property.entry.bundle.experimenter.property.BundleExperimenterPropertyData; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.experimenter.input.experimenter.data.of.choice.BundleControl; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.experimenter.input.experimenter.data.of.choice.BundleControlBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ExperimenterId; /** * Translates BundleControl messages (OpenFlow v1.3 extension #230). */ public class BundleControlFactory implements OFDeserializer<BundleControl>, DeserializerRegistryInjector { private DeserializerRegistry deserializerRegistry; @Override public BundleControl deserialize(ByteBuf message) { BundleId bundleId = new BundleId(message.readUnsignedInt()); BundleControlType type = BundleControlType.forValue(message.readUnsignedShort()); BundleFlags flags = createBundleFlags(message.readUnsignedShort()); BundleControlBuilder builder = new BundleControlBuilder(); List<BundleProperty> properties = createBundleProperties(message); return builder.setBundleId(bundleId).setType(type).setFlags(flags).setBundleProperty(properties).build(); } private static BundleFlags createBundleFlags(final int flags) { Boolean isAtomic = (flags & (1 << 0)) != 0; Boolean isOrdered = (flags & (1 << 1)) != 0; return new BundleFlags(isAtomic, isOrdered); } private List<BundleProperty> createBundleProperties(final ByteBuf message) { List<BundleProperty> properties = new ArrayList<>(); while (message.readableBytes() > 0) { BundlePropertyType type = BundlePropertyType.forValue(message.readUnsignedShort()); int length = message.readUnsignedShort(); if (type != null && type.equals(BundlePropertyType.ONFETBPTEXPERIMENTER)) { properties.add(createExperimenterBundleProperty(length, message)); } else { message.skipBytes(length); } } return properties; } private BundleProperty createExperimenterBundleProperty(final int length, final ByteBuf message) { BundleExperimenterPropertyBuilder experimenterProperty = new BundleExperimenterPropertyBuilder(); long experimenterId = message.readUnsignedInt(); long expType = message.readUnsignedInt(); experimenterProperty.setExperimenter(new ExperimenterId(experimenterId)); experimenterProperty.setExpType(expType); OFDeserializer<BundleExperimenterPropertyData> deserializer = deserializerRegistry .getDeserializer(ExperimenterDeserializerKeyFactory.createBundlePropertyDeserializerKey( EncodeConstants.OF13_VERSION_ID, experimenterId, expType)); experimenterProperty .setBundleExperimenterPropertyData(deserializer.deserialize(message.readBytes(length - 12))); return new BundlePropertyBuilder().setType(BundlePropertyType.ONFETBPTEXPERIMENTER) .setBundlePropertyEntry(experimenterProperty.build()).build(); } @Override public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) { this.deserializerRegistry = deserializerRegistry; } }