groupbasedpolicy/src/main/java/org/opendaylight/groupbasedpolicy/renderer/RendererUtils.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.groupbasedpolicy.renderer;
  10
  11 import java.util.List;
  12
  13 import javax.annotation.Nonnull;
  14 import javax.annotation.Nullable;
  15
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.RendererName;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.Renderer;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.nodes.RendererNode;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20
  21 import com.google.common.collect.ImmutableMap;
  22 import com.google.common.collect.ImmutableMultimap;
  23 import com.google.common.collect.ImmutableMultimap.Builder;
  24 import com.google.common.collect.Maps;
  25
  26 public class RendererUtils {
  27
  28     public static @Nonnull ImmutableMultimap<InstanceIdentifier<?>, RendererName> resolveRenderersByNodes(
  29             @Nullable List<Renderer> renderers) {
  30         if (renderers == null) {
  31             return ImmutableMultimap.of();
  32         }
  33         Builder<InstanceIdentifier<?>, RendererName> renderersByNodeBuilder = ImmutableMultimap.builder();
  34         for (Renderer renderer : renderers) {
  35             List<RendererNode> rendererNodes = renderer.getRendererNodes().getRendererNode();
  36             if (rendererNodes == null) {
  37                 continue;
  38             }
  39             for (RendererNode rendererNode : rendererNodes) {
  40                 if (rendererNode.getNodePath() != null) {
  41                     renderersByNodeBuilder.put(rendererNode.getNodePath(), renderer.getName());
  42                 }
  43             }
  44         }
  45         return renderersByNodeBuilder.build();
  46     }
  47
  48     public static @Nonnull ImmutableMap<RendererName, Renderer> resolveRendererByName(
  49             @Nullable List<Renderer> renderers) {
  50         if (renderers == null) {
  51             return ImmutableMap.of();
  52         }
  53         return Maps.uniqueIndex(renderers, Renderer::getName);
  54     }
  55 }