com.hazelcast.cp.internal.raftop.metadata.CompleteRaftGroupMembershipChangesOp Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2020, 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.cp.internal.raftop.metadata;
import com.hazelcast.cp.CPGroupId;
import com.hazelcast.cp.internal.IndeterminateOperationStateAware;
import com.hazelcast.cp.internal.MetadataRaftGroupManager;
import com.hazelcast.cp.internal.RaftServiceDataSerializerHook;
import com.hazelcast.cp.internal.util.Tuple2;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
/**
* Commits the given successfully-applied membership changes to the Metadata
* Raft group. The given changes do not have to contain all pending Raft group
* membership changes.
*/
public class CompleteRaftGroupMembershipChangesOp extends MetadataRaftGroupOp implements IndeterminateOperationStateAware,
IdentifiedDataSerializable {
private Map> changedGroups;
public CompleteRaftGroupMembershipChangesOp() {
}
public CompleteRaftGroupMembershipChangesOp(Map> changedGroups) {
this.changedGroups = changedGroups;
}
@Override
public Object run(MetadataRaftGroupManager metadataGroupManager, long commitIndex) {
return metadataGroupManager.completeRaftGroupMembershipChanges(commitIndex, changedGroups);
}
@Override
public boolean isRetryableOnIndeterminateOperationState() {
return true;
}
@Override
public int getFactoryId() {
return RaftServiceDataSerializerHook.F_ID;
}
@Override
public int getId() {
return RaftServiceDataSerializerHook.COMPLETE_RAFT_GROUP_MEMBERSHIP_CHANGES_OP;
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeInt(changedGroups.size());
for (Entry> e : changedGroups.entrySet()) {
out.writeObject(e.getKey());
Tuple2 value = e.getValue();
out.writeLong(value.element1);
out.writeLong(value.element2);
}
}
@Override
public void readData(ObjectDataInput in) throws IOException {
int count = in.readInt();
changedGroups = new HashMap>(count);
for (int i = 0; i < count; i++) {
CPGroupId groupId = in.readObject();
long currMembersCommitIndex = in.readLong();
long newMembersCommitIndex = in.readLong();
changedGroups.put(groupId, Tuple2.of(currMembersCommitIndex, newMembersCommitIndex));
}
}
@Override
protected void toString(StringBuilder sb) {
sb.append(", changedGroups=").append(changedGroups);
}
}