opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/FrontendClientMetadata.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 package org.opendaylight.controller.cluster.datastore.persisted;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.MoreObjects;
  13 import com.google.common.collect.ImmutableList;
  14 import java.io.DataInput;
  15 import java.io.DataOutput;
  16 import java.io.IOException;
  17 import java.util.Collection;
  18 import org.eclipse.jdt.annotation.NonNull;
  19 import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
  20 import org.opendaylight.controller.cluster.datastore.utils.ImmutableUnsignedLongSet;
  21 import org.opendaylight.yangtools.concepts.WritableObject;
  22
  23 public final class FrontendClientMetadata implements WritableObject {
  24     private final @NonNull ImmutableList<FrontendHistoryMetadata> currentHistories;
  25     private final @NonNull ImmutableUnsignedLongSet purgedHistories;
  26     private final @NonNull ClientIdentifier clientId;
  27
  28     public FrontendClientMetadata(final ClientIdentifier clientId, final ImmutableUnsignedLongSet purgedHistories,
  29             final Collection<FrontendHistoryMetadata> currentHistories) {
  30         this.clientId = requireNonNull(clientId);
  31         this.purgedHistories = requireNonNull(purgedHistories);
  32         this.currentHistories = ImmutableList.copyOf(currentHistories);
  33     }
  34
  35     public ClientIdentifier clientId() {
  36         return clientId;
  37     }
  38
  39     public ImmutableList<FrontendHistoryMetadata> getCurrentHistories() {
  40         return currentHistories;
  41     }
  42
  43     public ImmutableUnsignedLongSet getPurgedHistories() {
  44         return purgedHistories;
  45     }
  46
  47     @Override
  48     public void writeTo(final DataOutput out) throws IOException {
  49         clientId.writeTo(out);
  50         purgedHistories.writeTo(out);
  51
  52         out.writeInt(currentHistories.size());
  53         for (final FrontendHistoryMetadata h : currentHistories) {
  54             h.writeTo(out);
  55         }
  56     }
  57
  58     public static FrontendClientMetadata readFrom(final DataInput in) throws IOException {
  59         final var clientId = ClientIdentifier.readFrom(in);
  60         final var purgedHistories = ImmutableUnsignedLongSet.readFrom(in);
  61
  62         final int currentSize = in.readInt();
  63         final var currentBuilder = ImmutableList.<FrontendHistoryMetadata>builderWithExpectedSize(currentSize);
  64         for (int i = 0; i < currentSize; ++i) {
  65             currentBuilder.add(FrontendHistoryMetadata.readFrom(in));
  66         }
  67
  68         return new FrontendClientMetadata(clientId, purgedHistories, currentBuilder.build());
  69     }
  70
  71     @Override
  72     public String toString() {
  73         return MoreObjects.toStringHelper(FrontendClientMetadata.class)
  74             .add("clientId", clientId).add("current", currentHistories).add("purged", purgedHistories).toString();
  75     }
  76 }