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
8 package org.opendaylight.controller.cluster.access;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.annotations.VisibleForTesting;
13 import java.io.DataInput;
14 import java.io.DataOutput;
15 import java.io.IOException;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.yangtools.concepts.WritableObject;
18 import org.opendaylight.yangtools.yang.data.codec.binfmt.NormalizedNodeStreamVersion;
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
23 * Enumeration of all ABI versions supported by this implementation of the client access API.
25 public enum ABIVersion implements WritableObject {
26 // NOTE: enumeration values need to be sorted in ascending order of their version to keep Comparable working
29 * Version which is older than any other version. This version exists purely for testing purposes.
32 TEST_PAST_VERSION(0) {
34 public NormalizedNodeStreamVersion getStreamVersion() {
35 throw new UnsupportedOperationException();
40 * Initial ABI version, as shipped with Boron Simultaneous release.
42 * @deprecated This version scheduled for removal in the next major release.
44 // We seed the initial version to be the same as DataStoreVersions.BORON-VERSION for compatibility reasons.
45 @Deprecated(since = "6.0.4", forRemoval = true)
48 public NormalizedNodeStreamVersion getStreamVersion() {
49 return NormalizedNodeStreamVersion.LITHIUM;
53 * Revised ABI version. The messages remain the same as {@link #BORON}, but messages bearing QNames in any shape
54 * are using {@link NormalizedNodeStreamVersion#NEON_SR2}, which improves encoding.
56 * @deprecated This version scheduled for removal in the next major release.
58 @Deprecated(since = "6.0.4", forRemoval = true)
61 public NormalizedNodeStreamVersion getStreamVersion() {
62 return NormalizedNodeStreamVersion.NEON_SR2;
66 * Revised ABI version. The messages remain the same as {@link #BORON}, but messages bearing QNames in any shape
67 * are using {@link NormalizedNodeStreamVersion#SODIUM_SR1}, which improves encoding.
69 * @deprecated This version scheduled for removal in the next major release.
71 @Deprecated(since = "6.0.4", forRemoval = true)
74 public NormalizedNodeStreamVersion getStreamVersion() {
75 return NormalizedNodeStreamVersion.SODIUM_SR1;
79 * Revised ABI version. The messages remain the same as {@link #BORON}, but messages bearing QNames in any shape
80 * are using {@link NormalizedNodeStreamVersion#MAGNESIUM}, which improves encoding.
84 public NormalizedNodeStreamVersion getStreamVersion() {
85 return NormalizedNodeStreamVersion.MAGNESIUM;
89 * Revised ABI version. The messages remain the same as {@link #MAGNESIUM}, the serialization proxies in use are
90 * flat objects without any superclasses.
94 public NormalizedNodeStreamVersion getStreamVersion() {
95 return NormalizedNodeStreamVersion.MAGNESIUM;
100 * Version which is newer than any other version. This version exists purely for testing purposes.
103 TEST_FUTURE_VERSION(65535) {
105 public NormalizedNodeStreamVersion getStreamVersion() {
106 throw new UnsupportedOperationException();
110 private static final Logger LOG = LoggerFactory.getLogger(ABIVersion.class);
112 private final short value;
114 ABIVersion(final int intVersion) {
115 checkArgument(intVersion >= 0 && intVersion <= 65535);
116 value = (short) intVersion;
120 * Return the unsigned short integer identifying this version.
122 * @return Unsigned short integer identifying this version
124 public short shortValue() {
129 * Return the codebase-native ABI version. This version is the default version allocated to messages at runtime.
130 * Conversion to previous versions may incur additional overhead (such as object allocation).
132 * @return Current {@link ABIVersion}
134 public static @NonNull ABIVersion current() {
139 * Return the {@link ABIVersion} corresponding to an unsigned short integer. This method is provided for callers
140 * which provide their own recovery strategy in case of version incompatibility.
142 * @param value Short integer as returned from {@link #shortValue()}
143 * @return {@link ABIVersion}
144 * @throws FutureVersionException if the specified integer identifies a future version
145 * @throws PastVersionException if the specified integer identifies a past version which is no longer supported
147 public static @NonNull ABIVersion valueOf(final short value) throws FutureVersionException, PastVersionException {
148 return switch (Short.toUnsignedInt(value)) {
149 case 0, 1, 2, 3, 4 -> throw new PastVersionException(value, BORON);
152 case 7 -> SODIUM_SR1;
154 case 9 -> CHLORINE_SR2;
155 default -> throw new FutureVersionException(value, CHLORINE_SR2);
160 * Return {@code true} if this version is earier than some {@code other} version.
162 * @param other Other {@link ABIVersion}
163 * @return {@code true} if {@code other is later}
164 * @throws NullPointerException if {@code other} is null
166 public boolean lt(final @NonNull ABIVersion other) {
167 return compareTo(other) < 0;
171 public void writeTo(final DataOutput out) throws IOException {
172 out.writeShort(value);
176 * Return the NormalizedNode stream version corresponding to this particular ABI.
178 * @return Stream Version to use for this ABI version
180 public abstract @NonNull NormalizedNodeStreamVersion getStreamVersion();
183 * Read an {@link ABIVersion} from a {@link DataInput}. This method is provided for callers which do not have
184 * a recovery strategy for dealing with unsupported versions.
186 * @param in Input from which to read
187 * @return An {@link ABIVersion}
188 * @throws IOException If read fails or an unsupported version is encountered
190 public static @NonNull ABIVersion readFrom(final @NonNull DataInput in) throws IOException {
191 final short s = in.readShort();
194 } catch (FutureVersionException | PastVersionException e) {
195 throw new IOException("Unsupported version", e);
199 public static @NonNull ABIVersion inexactReadFrom(final @NonNull DataInput in) throws IOException {
200 final short onWire = in.readShort();
202 return ABIVersion.valueOf(onWire);
203 } catch (FutureVersionException e) {
204 LOG.debug("Received future version", e);
205 return ABIVersion.TEST_FUTURE_VERSION;
206 } catch (PastVersionException e) {
207 LOG.debug("Received past version", e);
208 return ABIVersion.TEST_PAST_VERSION;