/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.drill.exec.store.dfs;
import java.io.IOException;
import java.util.List;
import java.util.Set;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.common.logical.FormatPluginConfig;
import org.apache.drill.common.logical.StoragePluginConfig;
import org.apache.drill.exec.physical.base.AbstractGroupScan;
import org.apache.drill.exec.physical.base.AbstractWriter;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.server.DrillbitContext;
import org.apache.drill.exec.store.StoragePluginOptimizerRule;
import org.apache.hadoop.conf.Configuration;
/**
* Similar to a storage engine but built specifically to work within a FileSystem context.
*/
public interface FormatPlugin {
public boolean supportsRead();
public boolean supportsWrite();
/**
* Indicates whether this FormatPlugin supports auto-partitioning for CTAS statements
* @return true if auto-partitioning is supported
*/
public boolean supportsAutoPartitioning();
public FormatMatcher getMatcher();
public AbstractWriter getWriter(PhysicalOperator child, String location, List<String> partitionColumns) throws IOException;
public Set<StoragePluginOptimizerRule> getOptimizerRules();
public AbstractGroupScan getGroupScan(String userName, FileSelection selection, List<SchemaPath> columns) throws IOException;
public FormatPluginConfig getConfig();
public StoragePluginConfig getStorageConfig();
public Configuration getFsConf();
public DrillbitContext getContext();
public String getName();
}