2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.groupbasedpolicy.sxp.ep.provider.impl;
11 import com.google.common.collect.Sets;
13 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.api.EPPolicyTemplateProvider;
14 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.api.EPPolicyTemplateProviderRegistry;
15 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.api.TemplateProviderDistributionTarget;
16 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
17 import org.opendaylight.yangtools.concepts.ObjectRegistration;
20 * Purpose: provide registration and internal distribution for obtained {@link EPPolicyTemplateProvider}
22 public class EPPolicyTemplateProviderRegistryImpl implements EPPolicyTemplateProviderRegistry {
23 private EPPolicyTemplateProvider templateProvider;
24 private Set<TemplateProviderDistributionTarget<EPPolicyTemplateProvider>> distributionTargets = Sets.newConcurrentHashSet();
27 public ObjectRegistration<EPPolicyTemplateProvider> registerTemplateProvider(final EPPolicyTemplateProvider templateProvider) {
28 distributeTemplateProvider(templateProvider);
29 return new AbstractObjectRegistration<EPPolicyTemplateProvider>(templateProvider) {
31 protected void removeRegistration() {
32 distributeTemplateProvider(null);
38 public void addDistributionTarget(final TemplateProviderDistributionTarget<EPPolicyTemplateProvider> templateProviderDistributionTarget) {
39 distributionTargets.add(templateProviderDistributionTarget);
40 if (templateProvider != null) {
41 templateProviderDistributionTarget.setTemplateProvider(templateProvider);
46 * inject given templateProvider into available targets
47 * @param templateProvider current provider
49 private void distributeTemplateProvider(final EPPolicyTemplateProvider templateProvider) {
50 this.templateProvider = templateProvider;
51 for (TemplateProviderDistributionTarget<EPPolicyTemplateProvider> distributionTarget : distributionTargets) {
52 distributionTarget.setTemplateProvider(templateProvider);
58 distributeTemplateProvider(null);
59 distributionTargets.clear();