com.hazelcast.cp.internal.raftop.metadata.GetRaftGroupOp Maven / Gradle / Ivy
/*
* 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.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.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import java.io.IOException;
/**
* Returns information about the queried Raft group.
*
* This operation is committed to the Metadata group.
*/
public class GetRaftGroupOp extends MetadataRaftGroupOp implements IndeterminateOperationStateAware, IdentifiedDataSerializable {
// Please note that targetGroupId is the Raft group that is being queried and groupId argument is the Metadata Raft group
private CPGroupId targetGroupId;
public GetRaftGroupOp() {
}
public GetRaftGroupOp(CPGroupId targetGroupId) {
this.targetGroupId = targetGroupId;
}
@Override
public Object run(MetadataRaftGroupManager metadataGroupManager, long commitIndex) {
metadataGroupManager.checkMetadataGroupInitSuccessful();
return metadataGroupManager.getGroup(targetGroupId);
}
@Override
public boolean isRetryableOnIndeterminateOperationState() {
return true;
}
@Override
public int getFactoryId() {
return RaftServiceDataSerializerHook.F_ID;
}
@Override
public int getClassId() {
return RaftServiceDataSerializerHook.GET_RAFT_GROUP_OP;
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeObject(targetGroupId);
}
@Override
public void readData(ObjectDataInput in) throws IOException {
targetGroupId = in.readObject();
}
@Override
protected void toString(StringBuilder sb) {
sb.append(", targetGroupId=").append(targetGroupId);
}
}