Java tutorial
/* * Copyright (c) 2014 Cisco Systems, Inc. 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.groupbasedpolicy.neutron.mapper.util; import java.util.List; import org.opendaylight.controller.md.sal.binding.api.ReadTransaction; import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType; import org.opendaylight.groupbasedpolicy.api.sf.AllowActionDefinition; import org.opendaylight.groupbasedpolicy.neutron.mapper.mapping.NeutronPortAware; import org.opendaylight.groupbasedpolicy.util.DataStoreHelper; import org.opendaylight.groupbasedpolicy.util.IidFactory; import org.opendaylight.neutron.spi.Neutron_IPs; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ActionName; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2BridgeDomainId; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2FloodDomainId; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.action.refs.ActionRef; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.action.refs.ActionRefBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomain; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2FloodDomain; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L3Context; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.policy.subject.feature.instances.ActionInstance; import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.policy.subject.feature.instances.ActionInstanceBuilder; import com.google.common.base.Optional; import com.google.common.collect.ImmutableList; public final class MappingUtils { public static final String NEUTRON_ROUTER = "neutron_router-"; public static final String NEUTRON_EXTERNAL = "neutron_external_network-"; public static final String NEUTRON_GROUP = "neutron_group-"; public static final ActionInstance ACTION_ALLOW = new ActionInstanceBuilder().setName(new ActionName("Allow")) .setActionDefinitionId(AllowActionDefinition.DEFINITION.getId()).build(); public static final List<ActionRef> ACTION_REF_ALLOW = ImmutableList .of(new ActionRefBuilder().setName(ACTION_ALLOW.getName()).setOrder(0).build()); public static final EndpointGroupId EPG_EXTERNAL_ID = new EndpointGroupId( "eeeaa3a2-e9ba-44e0-a462-bea923d30e38"); public static final String NAME_VALUE_DELIMETER = "-"; public static final String NAME_DELIMETER = "_"; public static final String NAME_DOUBLE_DELIMETER = "__"; private MappingUtils() { throw new UnsupportedOperationException("Cannot create an instance."); } public static ForwardingCtx createForwardingContext(TenantId tenantId, L2FloodDomainId l2FdId, ReadTransaction rTx) { Optional<L2FloodDomain> potentialL2Fd = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION, IidFactory.l2FloodDomainIid(tenantId, l2FdId), rTx); if (!potentialL2Fd.isPresent()) { return new ForwardingCtx(null, null, null); } L2BridgeDomainId l2BdId = potentialL2Fd.get().getParent(); if (l2BdId == null) { return new ForwardingCtx(potentialL2Fd.get(), null, null); } Optional<L2BridgeDomain> potentialL2Bd = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), rTx); if (!potentialL2Bd.isPresent()) { return new ForwardingCtx(potentialL2Fd.get(), null, null); } L3ContextId l3ContextId = potentialL2Bd.get().getParent(); if (l3ContextId == null) { return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), null); } Optional<L3Context> potentialL3Context = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION, IidFactory.l3ContextIid(tenantId, l3ContextId), rTx); if (!potentialL3Context.isPresent()) { return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), null); } return new ForwardingCtx(potentialL2Fd.get(), potentialL2Bd.get(), potentialL3Context.get()); } public static final class ForwardingCtx { private final L2FloodDomain l2FloodDomain; private final L2BridgeDomain l2BridgeDomain; private final L3Context l3Context; private ForwardingCtx(L2FloodDomain l2Fd, L2BridgeDomain l2Bd, L3Context l3Context) { this.l2FloodDomain = l2Fd; this.l2BridgeDomain = l2Bd; this.l3Context = l3Context; } public L2FloodDomain getL2FloodDomain() { return l2FloodDomain; } public L2BridgeDomain getL2BridgeDomain() { return l2BridgeDomain; } public L3Context getL3Context() { return l3Context; } } public static Neutron_IPs getFirstIp(List<Neutron_IPs> fixedIPs) { if (fixedIPs == null || fixedIPs.isEmpty()) { return null; } Neutron_IPs neutron_Ip = fixedIPs.get(0); if (fixedIPs.size() > 1) { NeutronPortAware.LOG.warn( "Neutron mapper does not support multiple IPs on the same port. Only first IP is selected {}", neutron_Ip); } return neutron_Ip; } }