/*
* 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.vxquery.metadata;
import java.util.List;
import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
import edu.uci.ics.hyracks.algebricks.runtime.operators.std.SinkWriterRuntimeFactory;
import edu.uci.ics.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
import edu.uci.ics.hyracks.api.job.JobSpecification;
import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
public class VXQueryMetadataProvider implements IMetadataProvider<String, String> {
@Override
public IDataSource<String> findDataSource(String id) throws AlgebricksException {
return null;
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getScannerRuntime(IDataSource<String> dataSource,
List<LogicalVariable> scanVariables, List<LogicalVariable> projectVariables, boolean projectPushed,
IOperatorSchema opSchema, IVariableTypeEnvironment typeEnv, JobGenContext context, JobSpecification jobSpec)
throws AlgebricksException {
return null;
}
@Override
public boolean scannerOperatorIsLeaf(IDataSource<String> dataSource) {
return false;
}
@Override
public Pair<IPushRuntimeFactory, AlgebricksPartitionConstraint> getWriteFileRuntime(IDataSink sink,
int[] printColumns, IPrinterFactory[] printerFactories, RecordDescriptor inputDesc)
throws AlgebricksException {
QueryResultDataSink ds = (QueryResultDataSink) sink;
FileSplit[] fileSplits = ds.getFileSplits();
String[] locations = new String[fileSplits.length];
for (int i = 0; i < fileSplits.length; ++i) {
locations[i] = fileSplits[i].getNodeName();
}
IPushRuntimeFactory prf = new SinkWriterRuntimeFactory(printColumns, printerFactories, fileSplits[0]
.getLocalFile().getFile(), PrinterBasedWriterFactory.INSTANCE, inputDesc);
AlgebricksAbsolutePartitionConstraint constraint = new AlgebricksAbsolutePartitionConstraint(locations);
return new Pair<IPushRuntimeFactory, AlgebricksPartitionConstraint>(prf, constraint);
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getWriteResultRuntime(
IDataSource<String> dataSource, IOperatorSchema propagatedSchema, List<LogicalVariable> keys,
LogicalVariable payLoadVar, JobGenContext context, JobSpecification jobSpec) throws AlgebricksException {
return null;
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getInsertRuntime(IDataSource<String> dataSource,
IOperatorSchema propagatedSchema, List<LogicalVariable> keys, LogicalVariable payLoadVar,
RecordDescriptor recordDesc, JobGenContext context, JobSpecification jobSpec) throws AlgebricksException {
return null;
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getDeleteRuntime(IDataSource<String> dataSource,
IOperatorSchema propagatedSchema, List<LogicalVariable> keys, LogicalVariable payLoadVar,
RecordDescriptor recordDesc, JobGenContext context, JobSpecification jobSpec) throws AlgebricksException {
return null;
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexInsertRuntime(
IDataSourceIndex<String, String> dataSource, IOperatorSchema propagatedSchema,
IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
JobGenContext context, JobSpecification spec) throws AlgebricksException {
return null;
}
@Override
public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexDeleteRuntime(
IDataSourceIndex<String, String> dataSource, IOperatorSchema propagatedSchema,
IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
JobGenContext context, JobSpecification spec) throws AlgebricksException {
return null;
}
@Override
public IDataSourceIndex<String, String> findDataSourceIndex(String indexId, String dataSourceId)
throws AlgebricksException {
return null;
}
@Override
public IFunctionInfo lookupFunction(FunctionIdentifier fid) {
return null;
}
}