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.ArrayList;
  18 import java.util.Collection;
  19 import org.eclipse.jdt.annotation.NonNull;
  20 import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
  21 import org.opendaylight.controller.cluster.datastore.utils.ImmutableUnsignedLongSet;
  22 import org.opendaylight.yangtools.concepts.Identifiable;
  23 import org.opendaylight.yangtools.concepts.WritableObject;
  24
  25 public final class FrontendClientMetadata implements Identifiable<ClientIdentifier>, WritableObject {
  26     private final @NonNull ImmutableList<FrontendHistoryMetadata> currentHistories;
  27     private final @NonNull ImmutableUnsignedLongSet purgedHistories;
  28     private final @NonNull ClientIdentifier identifier;
  29
  30     public FrontendClientMetadata(final ClientIdentifier identifier, final ImmutableUnsignedLongSet purgedHistories,
  31             final Collection<FrontendHistoryMetadata> currentHistories) {
  32         this.identifier = requireNonNull(identifier);
  33         this.purgedHistories = requireNonNull(purgedHistories);
  34         this.currentHistories = ImmutableList.copyOf(currentHistories);
  35     }
  36
  37     public Collection<FrontendHistoryMetadata> getCurrentHistories() {
  38         return currentHistories;
  39     }
  40
  41     public ImmutableUnsignedLongSet getPurgedHistories() {
  42         return purgedHistories;
  43     }
  44
  45     @Override
  46     public ClientIdentifier getIdentifier() {
  47         return identifier;
  48     }
  49
  50     @Override
  51     public void writeTo(final DataOutput out) throws IOException {
  52         identifier.writeTo(out);
  53         purgedHistories.writeTo(out);
  54
  55         out.writeInt(currentHistories.size());
  56         for (final FrontendHistoryMetadata h : currentHistories) {
  57             h.writeTo(out);
  58         }
  59     }
  60
  61     public static FrontendClientMetadata readFrom(final DataInput in) throws IOException {
  62         final ClientIdentifier id = ClientIdentifier.readFrom(in);
  63         final var purgedHistories = ImmutableUnsignedLongSet.readFrom(in);
  64
  65         final int currentSize = in.readInt();
  66         // FIXME: ImmutableList.builder()
  67         final var currentHistories = new ArrayList<FrontendHistoryMetadata>(currentSize);
  68         for (int i = 0; i < currentSize; ++i) {
  69             currentHistories.add(FrontendHistoryMetadata.readFrom(in));
  70         }
  71
  72         return new FrontendClientMetadata(id, purgedHistories, currentHistories);
  73     }
  74
  75     @Override
  76     public String toString() {
  77         return MoreObjects.toStringHelper(FrontendClientMetadata.class).add("identifer", identifier)
  78                 .add("current", currentHistories).add("purged", purgedHistories).toString();
  79     }
  80 }