Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.jclouds.openstack.nova.v2_0.compute.functions; import com.google.common.base.Function; import com.google.common.base.Predicates; import com.google.inject.assistedinject.Assisted; import org.jclouds.compute.domain.SecurityGroup; import org.jclouds.compute.domain.SecurityGroupBuilder; import org.jclouds.domain.Location; import org.jclouds.net.domain.IpPermission; import org.jclouds.net.domain.IpProtocol; import org.jclouds.openstack.neutron.v2.domain.Rule; import org.jclouds.openstack.neutron.v2.domain.RuleDirection; import javax.annotation.Nullable; import javax.inject.Inject; import static com.google.common.collect.Iterables.filter; import static com.google.common.collect.Iterables.transform; public class NeutronSecurityGroupToSecurityGroup implements Function<org.jclouds.openstack.neutron.v2.domain.SecurityGroup, SecurityGroup> { public interface Factory { NeutronSecurityGroupToSecurityGroup create(Location location); } private final Location location; @Inject public NeutronSecurityGroupToSecurityGroup(@Assisted Location location) { this.location = location; } @Override public SecurityGroup apply(@Nullable org.jclouds.openstack.neutron.v2.domain.SecurityGroup group) { SecurityGroupBuilder builder = new SecurityGroupBuilder(); builder.providerId(group.getId()); builder.ownerId(group.getTenantId()); builder.name(group.getName()); final String regionId = location.getId(); builder.location(location); builder.id(regionId + "/" + group.getId()); if (group.getRules() != null) { builder.ipPermissions(filter(transform(group.getRules(), new Function<Rule, IpPermission>() { @Override public IpPermission apply(Rule from) { if (from.getDirection() == RuleDirection.EGRESS) return null; IpPermission.Builder builder = IpPermission.builder(); if (from.getProtocol() != null) { builder.ipProtocol(IpProtocol.fromValue(from.getProtocol().name())); } else { builder.ipProtocol(IpProtocol.TCP); } if (from.getPortRangeMin() != null) builder.fromPort(from.getPortRangeMin()); if (from.getPortRangeMax() != null) builder.toPort(from.getPortRangeMax()); if (from.getRemoteGroupId() != null) { builder.groupId(regionId + "/" + from.getRemoteGroupId()); } else if (from.getRemoteIpPrefix() != null) { builder.cidrBlock(from.getRemoteIpPrefix()); } return builder.build(); } }), Predicates.notNull())); } return builder.build(); } }