com.hazelcast.client.impl.protocol.codec.RingbufferHeadSequenceCodec 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.*;
import com.hazelcast.client.impl.protocol.codec.custom.*;

import javax.annotation.Nullable;

import static com.hazelcast.client.impl.protocol.ClientMessage.*;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.*;

/*
 * 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.
 */

/**
 * Returns the sequence of the head. The head is the side of the ringbuffer where the oldest items in the ringbuffer
 * are found. If the RingBuffer is empty, the head will be one more than the tail.
 * The initial value of the head is 0 (1 more than tail).
 */
@SuppressWarnings("unused")
@Generated("4676c723caef77b2ae9b65f8ba0df968")
public final class RingbufferHeadSequenceCodec {
    //hex: 0x170300
    public static final int REQUEST_MESSAGE_TYPE = 1508096;
    //hex: 0x170301
    public static final int RESPONSE_MESSAGE_TYPE = 1508097;
    private static final int REQUEST_INITIAL_FRAME_SIZE = PARTITION_ID_FIELD_OFFSET + INT_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 RingbufferHeadSequenceCodec() {
    }

    public static ClientMessage encodeRequest(java.lang.String name) {
        ClientMessage clientMessage = ClientMessage.createForEncode();
        clientMessage.setRetryable(true);
        clientMessage.setOperationName("Ringbuffer.HeadSequence");
        ClientMessage.Frame initialFrame = new ClientMessage.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);
        clientMessage.add(initialFrame);
        StringCodec.encode(clientMessage, name);
        return clientMessage;
    }

    /**
     * Name of the Ringbuffer
     */
    public static java.lang.String decodeRequest(ClientMessage clientMessage) {
        ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
        //empty initial frame
        iterator.next();
        return StringCodec.decode(iterator);
    }

    public static ClientMessage encodeResponse(long response) {
        ClientMessage clientMessage = ClientMessage.createForEncode();
        ClientMessage.Frame initialFrame = new ClientMessage.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;
    }

    /**
     * the sequence of the head
     */
    public static long decodeResponse(ClientMessage clientMessage) {
        ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
        ClientMessage.Frame initialFrame = iterator.next();
        return decodeLong(initialFrame.content, RESPONSE_RESPONSE_FIELD_OFFSET);
    }
}