/*
* Copyright (c) 2008-2016 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.MongoCommandException;
import com.mongodb.MongoCredential;
import com.mongodb.MongoNamespace;
import com.mongodb.WriteConcern;
import com.mongodb.WriteConcernResult;
import com.mongodb.async.SingleResultCallback;
import com.mongodb.binding.AsyncWriteBinding;
import com.mongodb.binding.WriteBinding;
import com.mongodb.bulk.InsertRequest;
import com.mongodb.connection.AsyncConnection;
import com.mongodb.connection.Connection;
import com.mongodb.connection.ConnectionDescription;
import org.bson.BsonDocument;
import static com.mongodb.assertions.Assertions.notNull;
import static com.mongodb.internal.async.ErrorHandlingResultCallback.errorHandlingCallback;
import static com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol;
import static com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocolAsync;
import static com.mongodb.operation.OperationHelper.AsyncCallableWithConnection;
import static com.mongodb.operation.OperationHelper.CallableWithConnection;
import static com.mongodb.operation.OperationHelper.LOGGER;
import static com.mongodb.operation.OperationHelper.releasingCallback;
import static com.mongodb.operation.OperationHelper.serverIsAtLeastVersionTwoDotSix;
import static com.mongodb.operation.OperationHelper.withConnection;
import static com.mongodb.operation.UserOperationHelper.asCollectionInsertDocument;
import static com.mongodb.operation.UserOperationHelper.asCommandDocument;
import static com.mongodb.operation.UserOperationHelper.translateUserCommandException;
import static com.mongodb.operation.UserOperationHelper.userCommandCallback;
import static com.mongodb.operation.WriteConcernHelper.appendWriteConcernToCommand;
import static com.mongodb.operation.WriteConcernHelper.writeConcernErrorTransformer;
import static java.util.Arrays.asList;
/**
* An operation to create a user.
*
* @since 3.0
*/
public class CreateUserOperation implements AsyncWriteOperation<Void>, WriteOperation<Void> {
private final MongoCredential credential;
private final boolean readOnly;
private final WriteConcern writeConcern;
/**
* Construct a new instance.
*
* @param credential the users credentials.
* @param readOnly true if the user is a readOnly user.
* @deprecated Prefer {@link #CreateUserOperation(MongoCredential, boolean, WriteConcern)}
*/
@Deprecated
public CreateUserOperation(final MongoCredential credential, final boolean readOnly) {
this(credential, readOnly, null);
}
/**
* Construct a new instance.
*
* @param credential the users credentials.
* @param readOnly true if the user is a readOnly user.
* @param writeConcern the write concern
*
* @since 3.4
*/
public CreateUserOperation(final MongoCredential credential, final boolean readOnly, final WriteConcern writeConcern) {
this.credential = notNull("credential", credential);
this.readOnly = readOnly;
this.writeConcern = writeConcern;
}
/**
* Gets the users credentials.
*
* @return the users credentials.
*/
public MongoCredential getCredential() {
return credential;
}
/**
* Returns true if the user is a readOnly user.
*
* @return true if the user is a readOnly user.
*/
public boolean isReadOnly() {
return readOnly;
}
@Override
public Void execute(final WriteBinding binding) {
return withConnection(binding, new CallableWithConnection<Void>() {
@Override
public Void call(final Connection connection) {
if (serverIsAtLeastVersionTwoDotSix(connection.getDescription())) {
try {
executeWrappedCommandProtocol(binding, getCredential().getSource(), getCommand(connection.getDescription()),
connection, writeConcernErrorTransformer());
} catch (MongoCommandException e) {
translateUserCommandException(e);
}
} else {
connection.insert(getNamespace(), true, WriteConcern.ACKNOWLEDGED, asList(getInsertRequest()));
}
return null;
}
});
}
@Override
public void executeAsync(final AsyncWriteBinding binding, final SingleResultCallback<Void> callback) {
withConnection(binding, new AsyncCallableWithConnection() {
@Override
public void call(final AsyncConnection connection, final Throwable t) {
SingleResultCallback<Void> errHandlingCallback = errorHandlingCallback(callback, LOGGER);
if (t != null) {
errHandlingCallback.onResult(null, t);
} else {
final SingleResultCallback<Void> wrappedCallback = releasingCallback(errHandlingCallback, connection);
if (serverIsAtLeastVersionTwoDotSix(connection.getDescription())) {
executeWrappedCommandProtocolAsync(binding, credential.getSource(), getCommand(connection.getDescription()),
connection, writeConcernErrorTransformer(), userCommandCallback(wrappedCallback));
} else {
connection.insertAsync(getNamespace(), true, WriteConcern.ACKNOWLEDGED,
asList(getInsertRequest()), new SingleResultCallback<WriteConcernResult>() {
@Override
public void onResult(final WriteConcernResult result, final Throwable t) {
wrappedCallback.onResult(null, t);
}
});
}
}
}
});
}
private InsertRequest getInsertRequest() {
return new InsertRequest(asCollectionInsertDocument(credential, readOnly));
}
private MongoNamespace getNamespace() {
return new MongoNamespace(credential.getSource(), "system.users");
}
private BsonDocument getCommand(final ConnectionDescription description) {
BsonDocument commandDocument = asCommandDocument(credential, readOnly, "createUser");
appendWriteConcernToCommand(writeConcern, commandDocument, description);
return commandDocument;
}
}