| /* |
| * 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.ArrayList; |
| import java.util.List; |
| |
| import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable; |
| import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider; |
| import org.apache.hyracks.algebricks.core.algebra.properties.FunctionalDependency; |
| import org.apache.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty; |
| import org.apache.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector; |
| import org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty; |
| import org.apache.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector; |
| import org.apache.vxquery.compiler.rewriter.rules.CollectionFileDomain; |
| |
| public class VXQueryCollectionDataSource extends AbstractVXQueryDataSource { |
| |
| private VXQueryCollectionDataSource(int id, String file, Object[] types) { |
| this.dataSourceId = id; |
| this.collectionName = file; |
| collectionPartitions = collectionName.split(DELIMITER); |
| this.types = types; |
| final IPhysicalPropertiesVector vec = new StructuralPropertiesVector( |
| new RandomPartitioningProperty(new CollectionFileDomain(collectionName)), |
| new ArrayList<ILocalStructuralProperty>()); |
| propProvider = new IDataSourcePropertiesProvider() { |
| @Override |
| public IPhysicalPropertiesVector computePropertiesVector(List<LogicalVariable> scanVariables) { |
| return vec; |
| } |
| }; |
| this.childSeq = new ArrayList<>(); |
| this.tag = null; |
| } |
| |
| public static VXQueryCollectionDataSource create(int id, String file, Object type) { |
| return new VXQueryCollectionDataSource(id, file, new Object[] { type }); |
| } |
| |
| public int getTotalDataSources() { |
| return totalDataSources; |
| } |
| |
| public void setTotalDataSources(int totalDataSources) { |
| this.totalDataSources = totalDataSources; |
| } |
| |
| public int getDataSourceId() { |
| return dataSourceId; |
| } |
| |
| public String[] getPartitions() { |
| return collectionPartitions; |
| } |
| |
| public void setPartitions(String[] collectionPartitions) { |
| this.collectionPartitions = collectionPartitions; |
| } |
| |
| public int getPartitionCount() { |
| return collectionPartitions.length; |
| } |
| |
| public String getTag() { |
| return this.tag; |
| } |
| |
| public void setTag(String tag) { |
| this.tag = tag; |
| } |
| |
| @Override |
| public String getId() { |
| return collectionName; |
| } |
| |
| @Override |
| public Object[] getSchemaTypes() { |
| return types; |
| } |
| |
| @Override |
| public IDataSourcePropertiesProvider getPropertiesProvider() { |
| return propProvider; |
| } |
| |
| @Override |
| public void computeFDs(List<LogicalVariable> scanVariables, List<FunctionalDependency> fdList) { |
| } |
| |
| public void addChildSeq(int integer) { |
| childSeq.add(integer); |
| } |
| |
| public List<Integer> getChildSeq() { |
| return childSeq; |
| } |
| |
| @Override |
| public String toString() { |
| return "VXQueryCollectionDataSource [collectionName=" + collectionName + ", childSeq=" + childSeq + "]"; |
| } |
| |
| @Override |
| public String getFunctionCall() { |
| return function; |
| } |
| } |