/*
* 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.facebook.presto.connector.informationSchema;
import com.facebook.presto.metadata.InternalNodeManager;
import com.facebook.presto.metadata.Metadata;
import com.facebook.presto.security.AccessControl;
import com.facebook.presto.spi.connector.ConnectorMetadata;
import com.facebook.presto.spi.connector.ConnectorPageSourceProvider;
import com.facebook.presto.spi.connector.ConnectorSplitManager;
import com.facebook.presto.spi.connector.ConnectorTransactionHandle;
import com.facebook.presto.spi.transaction.IsolationLevel;
import com.facebook.presto.transaction.InternalConnector;
import com.facebook.presto.transaction.TransactionId;
import static java.util.Objects.requireNonNull;
public class InformationSchemaConnector
implements InternalConnector
{
private final ConnectorMetadata metadata;
private final ConnectorSplitManager splitManager;
private final ConnectorPageSourceProvider pageSourceProvider;
public InformationSchemaConnector(String catalogName, InternalNodeManager nodeManager, Metadata metadata, AccessControl accessControl)
{
requireNonNull(catalogName, "catalogName is null");
requireNonNull(nodeManager, "nodeManager is null");
requireNonNull(metadata, "metadata is null");
this.metadata = new InformationSchemaMetadata(catalogName);
this.splitManager = new InformationSchemaSplitManager(nodeManager);
this.pageSourceProvider = new InformationSchemaPageSourceProvider(metadata, accessControl);
}
@Override
public ConnectorTransactionHandle beginTransaction(TransactionId transactionId, IsolationLevel isolationLevel, boolean readOnly)
{
return new InformationSchemaTransactionHandle(transactionId);
}
@Override
public ConnectorMetadata getMetadata(ConnectorTransactionHandle transactionHandle)
{
return metadata;
}
@Override
public ConnectorSplitManager getSplitManager()
{
return splitManager;
}
@Override
public ConnectorPageSourceProvider getPageSourceProvider()
{
return pageSourceProvider;
}
}