com.mongodb.operation.TransactionOperation Maven / Gradle / Ivy
/*
* Copyright 2008-present MongoDB, Inc.
*
* 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.mongodb.operation;
import com.mongodb.Function;
import com.mongodb.WriteConcern;
import com.mongodb.async.SingleResultCallback;
import com.mongodb.binding.AsyncWriteBinding;
import com.mongodb.binding.WriteBinding;
import com.mongodb.connection.ConnectionDescription;
import com.mongodb.connection.ServerDescription;
import com.mongodb.internal.validator.NoOpFieldNameValidator;
import com.mongodb.operation.CommandOperationHelper.CommandCreator;
import org.bson.BsonDocument;
import org.bson.BsonInt32;
import org.bson.codecs.BsonDocumentCodec;
import static com.mongodb.assertions.Assertions.isTrue;
import static com.mongodb.assertions.Assertions.notNull;
import static com.mongodb.internal.async.ErrorHandlingResultCallback.errorHandlingCallback;
import static com.mongodb.operation.CommandOperationHelper.executeRetryableCommand;
import static com.mongodb.operation.CommandOperationHelper.writeConcernErrorTransformer;
import static com.mongodb.operation.CommandOperationHelper.writeConcernErrorTransformerAsync;
import static com.mongodb.operation.OperationHelper.LOGGER;
/**
* A base class for transaction-related operations
*
* @since 3.8
*/
@Deprecated
public abstract class TransactionOperation implements WriteOperation, AsyncWriteOperation {
private final WriteConcern writeConcern;
/**
* Construct an instance.
*
* @param writeConcern the write concern
*/
TransactionOperation(final WriteConcern writeConcern) {
this.writeConcern = notNull("writeConcern", writeConcern);
}
/**
* Gets the write concern.
*
* @return the write concern
*/
public WriteConcern getWriteConcern() {
return writeConcern;
}
@Override
public Void execute(final WriteBinding binding) {
isTrue("in transaction", binding.getSessionContext().hasActiveTransaction());
return executeRetryableCommand(binding, "admin", null, new NoOpFieldNameValidator(),
new BsonDocumentCodec(), getCommandCreator(), writeConcernErrorTransformer(), getRetryCommandModifier());
}
@Override
public void executeAsync(final AsyncWriteBinding binding, final SingleResultCallback callback) {
isTrue("in transaction", binding.getSessionContext().hasActiveTransaction());
executeRetryableCommand(binding, "admin", null, new NoOpFieldNameValidator(),
new BsonDocumentCodec(), getCommandCreator(), writeConcernErrorTransformerAsync(), getRetryCommandModifier(),
errorHandlingCallback(callback, LOGGER));
}
CommandCreator getCommandCreator() {
return new CommandCreator() {
@Override
public BsonDocument create(final ServerDescription serverDescription, final ConnectionDescription connectionDescription) {
BsonDocument command = new BsonDocument(getCommandName(), new BsonInt32(1));
if (!writeConcern.isServerDefault()) {
command.put("writeConcern", writeConcern.asDocument());
}
return command;
}
};
}
/**
* Gets the command name.
*
* @return the command name
*/
protected abstract String getCommandName();
protected abstract Function getRetryCommandModifier();
}