com.hazelcast.client.impl.protocol.codec.FencedLockLockCodec Maven / Gradle / Ivy
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/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.client.impl.protocol.codec;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.Generated;
import com.hazelcast.client.impl.protocol.codec.builtin.StringCodec;
import static com.hazelcast.client.impl.protocol.ClientMessage.ForwardFrameIterator;
import static com.hazelcast.client.impl.protocol.ClientMessage.Frame;
import static com.hazelcast.client.impl.protocol.ClientMessage.PARTITION_ID_FIELD_OFFSET;
import static com.hazelcast.client.impl.protocol.ClientMessage.RESPONSE_BACKUP_ACKS_FIELD_OFFSET;
import static com.hazelcast.client.impl.protocol.ClientMessage.TYPE_FIELD_OFFSET;
import static com.hazelcast.client.impl.protocol.ClientMessage.UNFRAGMENTED_MESSAGE;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.BYTE_SIZE_IN_BYTES;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.INT_SIZE_IN_BYTES;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.LONG_SIZE_IN_BYTES;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.UUID_SIZE_IN_BYTES;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.decodeLong;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.decodeUUID;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.encodeInt;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.encodeLong;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.encodeUUID;
/*
* This file is auto-generated by the Hazelcast Client Protocol Code Generator.
* To change this file, edit the templates or the protocol
* definitions on the https://github.com/hazelcast/hazelcast-client-protocol
* and regenerate it.
*/
/**
* Acquires the given FencedLock on the given CP group. If the lock is
* acquired, a valid fencing token (positive number) is returned. If not
* acquired because of max reentrant entry limit, the call returns -1.
* If the lock is held by some other endpoint when this method is called,
* the caller thread is blocked until the lock is released. If the session
* is closed between reentrant acquires, the call fails with
* {@code LockOwnershipLostException}.
*/
@SuppressWarnings("unused")
@Generated("7c979aea889f5f1ac8a6177a79cc5cd4")
public final class FencedLockLockCodec {
//hex: 0x070100
public static final int REQUEST_MESSAGE_TYPE = 459008;
//hex: 0x070101
public static final int RESPONSE_MESSAGE_TYPE = 459009;
private static final int REQUEST_SESSION_ID_FIELD_OFFSET = PARTITION_ID_FIELD_OFFSET + INT_SIZE_IN_BYTES;
private static final int REQUEST_THREAD_ID_FIELD_OFFSET = REQUEST_SESSION_ID_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
private static final int REQUEST_INVOCATION_UID_FIELD_OFFSET = REQUEST_THREAD_ID_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
private static final int REQUEST_INITIAL_FRAME_SIZE = REQUEST_INVOCATION_UID_FIELD_OFFSET + UUID_SIZE_IN_BYTES;
private static final int RESPONSE_RESPONSE_FIELD_OFFSET = RESPONSE_BACKUP_ACKS_FIELD_OFFSET + BYTE_SIZE_IN_BYTES;
private static final int RESPONSE_INITIAL_FRAME_SIZE = RESPONSE_RESPONSE_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
private FencedLockLockCodec() {
}
@edu.umd.cs.findbugs.annotations.SuppressFBWarnings({"URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD"})
public static class RequestParameters {
/**
* CP group id of this FencedLock instance
*/
public com.hazelcast.cp.internal.RaftGroupId groupId;
/**
* Name of this FencedLock instance
*/
public String name;
/**
* Session ID of the caller
*/
public long sessionId;
/**
* ID of the caller thread
*/
public long threadId;
/**
* UID of this invocation
*/
public java.util.UUID invocationUid;
}
public static ClientMessage encodeRequest(com.hazelcast.cp.internal.RaftGroupId groupId, String name, long sessionId, long threadId, java.util.UUID invocationUid) {
ClientMessage clientMessage = ClientMessage.createForEncode();
clientMessage.setRetryable(true);
clientMessage.setOperationName("FencedLock.Lock");
Frame initialFrame = new Frame(new byte[REQUEST_INITIAL_FRAME_SIZE], UNFRAGMENTED_MESSAGE);
encodeInt(initialFrame.content, TYPE_FIELD_OFFSET, REQUEST_MESSAGE_TYPE);
encodeInt(initialFrame.content, PARTITION_ID_FIELD_OFFSET, -1);
encodeLong(initialFrame.content, REQUEST_SESSION_ID_FIELD_OFFSET, sessionId);
encodeLong(initialFrame.content, REQUEST_THREAD_ID_FIELD_OFFSET, threadId);
encodeUUID(initialFrame.content, REQUEST_INVOCATION_UID_FIELD_OFFSET, invocationUid);
clientMessage.add(initialFrame);
RaftGroupIdCodec.encode(clientMessage, groupId);
StringCodec.encode(clientMessage, name);
return clientMessage;
}
public static RequestParameters decodeRequest(ClientMessage clientMessage) {
ForwardFrameIterator iterator = clientMessage.frameIterator();
RequestParameters request = new RequestParameters();
Frame initialFrame = iterator.next();
request.sessionId = decodeLong(initialFrame.content, REQUEST_SESSION_ID_FIELD_OFFSET);
request.threadId = decodeLong(initialFrame.content, REQUEST_THREAD_ID_FIELD_OFFSET);
request.invocationUid = decodeUUID(initialFrame.content, REQUEST_INVOCATION_UID_FIELD_OFFSET);
request.groupId = RaftGroupIdCodec.decode(iterator);
request.name = StringCodec.decode(iterator);
return request;
}
public static ClientMessage encodeResponse(long response) {
ClientMessage clientMessage = ClientMessage.createForEncode();
Frame initialFrame = new Frame(new byte[RESPONSE_INITIAL_FRAME_SIZE], UNFRAGMENTED_MESSAGE);
encodeInt(initialFrame.content, TYPE_FIELD_OFFSET, RESPONSE_MESSAGE_TYPE);
encodeLong(initialFrame.content, RESPONSE_RESPONSE_FIELD_OFFSET, response);
clientMessage.add(initialFrame);
return clientMessage;
}
/**
* a valid fencing token (positive number) if the lock
* is acquired, otherwise -1.
*/
public static long decodeResponse(ClientMessage clientMessage) {
ForwardFrameIterator iterator = clientMessage.frameIterator();
Frame initialFrame = iterator.next();
return decodeLong(initialFrame.content, RESPONSE_RESPONSE_FIELD_OFFSET);
}
}
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