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/*
* Copyright (c) 2008-2021, 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.
*/
/**
* Reads from the map event journal in batches. You may specify the start sequence,
* the minumum required number of items in the response, the maximum number of items
* in the response, a predicate that the events should pass and a projection to
* apply to the events in the journal.
* If the event journal currently contains less events than {@code minSize}, the
* call will wait until it has sufficient items.
* The predicate, filter and projection may be {@code null} in which case all elements are returned
* and no projection is applied.
*/
@Generated("0c5516802589a81690bd3d3bcfce4fce")
public final class MapEventJournalReadCodec {
//hex: 0x014200
public static final int REQUEST_MESSAGE_TYPE = 82432;
//hex: 0x014201
public static final int RESPONSE_MESSAGE_TYPE = 82433;
private static final int REQUEST_START_SEQUENCE_FIELD_OFFSET = PARTITION_ID_FIELD_OFFSET + INT_SIZE_IN_BYTES;
private static final int REQUEST_MIN_SIZE_FIELD_OFFSET = REQUEST_START_SEQUENCE_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
private static final int REQUEST_MAX_SIZE_FIELD_OFFSET = REQUEST_MIN_SIZE_FIELD_OFFSET + INT_SIZE_IN_BYTES;
private static final int REQUEST_INITIAL_FRAME_SIZE = REQUEST_MAX_SIZE_FIELD_OFFSET + INT_SIZE_IN_BYTES;
private static final int RESPONSE_READ_COUNT_FIELD_OFFSET = RESPONSE_BACKUP_ACKS_FIELD_OFFSET + BYTE_SIZE_IN_BYTES;
private static final int RESPONSE_NEXT_SEQ_FIELD_OFFSET = RESPONSE_READ_COUNT_FIELD_OFFSET + INT_SIZE_IN_BYTES;
private static final int RESPONSE_INITIAL_FRAME_SIZE = RESPONSE_NEXT_SEQ_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
private MapEventJournalReadCodec() {
}
@edu.umd.cs.findbugs.annotations.SuppressFBWarnings({"URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD"})
public static class RequestParameters {
/**
* name of the map
*/
public java.lang.String name;
/**
* the startSequence of the first item to read
*/
public long startSequence;
/**
* the minimum number of items to read.
*/
public int minSize;
/**
* the maximum number of items to read.
*/
public int maxSize;
/**
* the predicate to apply before processing events
*/
public @Nullable com.hazelcast.internal.serialization.Data predicate;
/**
* the projection to apply to journal events
*/
public @Nullable com.hazelcast.internal.serialization.Data projection;
}
public static ClientMessage encodeRequest(java.lang.String name, long startSequence, int minSize, int maxSize, @Nullable com.hazelcast.internal.serialization.Data predicate, @Nullable com.hazelcast.internal.serialization.Data projection) {
ClientMessage clientMessage = ClientMessage.createForEncode();
clientMessage.setRetryable(true);
clientMessage.setOperationName("Map.EventJournalRead");
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);
encodeLong(initialFrame.content, REQUEST_START_SEQUENCE_FIELD_OFFSET, startSequence);
encodeInt(initialFrame.content, REQUEST_MIN_SIZE_FIELD_OFFSET, minSize);
encodeInt(initialFrame.content, REQUEST_MAX_SIZE_FIELD_OFFSET, maxSize);
clientMessage.add(initialFrame);
StringCodec.encode(clientMessage, name);
CodecUtil.encodeNullable(clientMessage, predicate, DataCodec::encode);
CodecUtil.encodeNullable(clientMessage, projection, DataCodec::encode);
return clientMessage;
}
public static MapEventJournalReadCodec.RequestParameters decodeRequest(ClientMessage clientMessage) {
ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
RequestParameters request = new RequestParameters();
ClientMessage.Frame initialFrame = iterator.next();
request.startSequence = decodeLong(initialFrame.content, REQUEST_START_SEQUENCE_FIELD_OFFSET);
request.minSize = decodeInt(initialFrame.content, REQUEST_MIN_SIZE_FIELD_OFFSET);
request.maxSize = decodeInt(initialFrame.content, REQUEST_MAX_SIZE_FIELD_OFFSET);
request.name = StringCodec.decode(iterator);
request.predicate = CodecUtil.decodeNullable(iterator, DataCodec::decode);
request.projection = CodecUtil.decodeNullable(iterator, DataCodec::decode);
return request;
}
@edu.umd.cs.findbugs.annotations.SuppressFBWarnings({"URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD"})
public static class ResponseParameters {
/**
* Number of items that have been read.
*/
public int readCount;
/**
* List of items that have been read.
*/
public java.util.List items;
/**
* Sequence numbers of items in the event journal.
*/
public @Nullable long[] itemSeqs;
/**
* Sequence number of the item following the last read item.
*/
public long nextSeq;
}
public static ClientMessage encodeResponse(int readCount, java.util.Collection items, @Nullable long[] itemSeqs, long nextSeq) {
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);
encodeInt(initialFrame.content, RESPONSE_READ_COUNT_FIELD_OFFSET, readCount);
encodeLong(initialFrame.content, RESPONSE_NEXT_SEQ_FIELD_OFFSET, nextSeq);
clientMessage.add(initialFrame);
ListMultiFrameCodec.encode(clientMessage, items, DataCodec::encode);
CodecUtil.encodeNullable(clientMessage, itemSeqs, LongArrayCodec::encode);
return clientMessage;
}
public static MapEventJournalReadCodec.ResponseParameters decodeResponse(ClientMessage clientMessage) {
ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
ResponseParameters response = new ResponseParameters();
ClientMessage.Frame initialFrame = iterator.next();
response.readCount = decodeInt(initialFrame.content, RESPONSE_READ_COUNT_FIELD_OFFSET);
response.nextSeq = decodeLong(initialFrame.content, RESPONSE_NEXT_SEQ_FIELD_OFFSET);
response.items = ListMultiFrameCodec.decode(iterator, DataCodec::decode);
response.itemSeqs = CodecUtil.decodeNullable(iterator, LongArrayCodec::decode);
return response;
}
}
