opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/AbstractReadPathTransactionRequestProxyV1.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.access.commands;
   9
  10 import akka.actor.ActorRef;
  11 import java.io.IOException;
  12 import java.io.ObjectInput;
  13 import java.io.ObjectOutput;
  14 import java.io.Serial;
  15 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
  16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.codec.binfmt.NormalizedNodeDataInput;
  18 import org.opendaylight.yangtools.yang.data.codec.binfmt.NormalizedNodeDataOutput;
  19 import org.opendaylight.yangtools.yang.data.codec.binfmt.NormalizedNodeStreamVersion;
  20
  21 /**
  22  * Abstract base class for serialization proxies associated with {@link AbstractReadTransactionRequest}s. It implements
  23  * the initial (Boron) serialization format.
  24  *
  25  * @author Robert Varga
  26  *
  27  * @param <T> Message type
  28  */
  29 abstract class AbstractReadPathTransactionRequestProxyV1<T extends AbstractReadPathTransactionRequest<T>>
  30         extends AbstractReadTransactionRequestProxyV1<T> {
  31     @Serial
  32     private static final long serialVersionUID = 1L;
  33
  34     private YangInstanceIdentifier path;
  35     private transient NormalizedNodeStreamVersion streamVersion;
  36
  37     protected AbstractReadPathTransactionRequestProxyV1() {
  38         // For Externalizable
  39     }
  40
  41     AbstractReadPathTransactionRequestProxyV1(final T request) {
  42         super(request);
  43         path = request.getPath();
  44         streamVersion = request.getVersion().getStreamVersion();
  45     }
  46
  47     @Override
  48     public final void writeExternal(final ObjectOutput out) throws IOException {
  49         super.writeExternal(out);
  50         try (NormalizedNodeDataOutput nnout = streamVersion.newDataOutput(out)) {
  51             nnout.writeYangInstanceIdentifier(path);
  52         }
  53     }
  54
  55     @Override
  56     public final void readExternal(final ObjectInput in) throws ClassNotFoundException, IOException {
  57         super.readExternal(in);
  58         path = NormalizedNodeDataInput.newDataInput(in).readYangInstanceIdentifier();
  59     }
  60
  61     @Override
  62     protected final T createReadRequest(final TransactionIdentifier target, final long sequence,
  63             final ActorRef replyTo, final boolean snapshotOnly) {
  64         return createReadPathRequest(target, sequence, replyTo, path, snapshotOnly);
  65     }
  66
  67     abstract T createReadPathRequest(TransactionIdentifier target, long sequence, ActorRef replyTo,
  68             YangInstanceIdentifier requestPath, boolean snapshotOnly);
  69 }