| /* |
| * 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.rya.periodic.notification.pruner; |
| |
| import org.apache.fluo.api.client.FluoClient; |
| import org.apache.fluo.api.client.Transaction; |
| import org.apache.fluo.api.data.Bytes; |
| import org.apache.fluo.api.data.Column; |
| import org.apache.fluo.api.data.Span; |
| import org.apache.rya.indexing.pcj.fluo.app.NodeType; |
| import org.apache.rya.indexing.pcj.fluo.app.batch.BatchInformationDAO; |
| import org.apache.rya.indexing.pcj.fluo.app.batch.SpanBatchDeleteInformation; |
| import org.apache.rya.indexing.pcj.fluo.app.util.BindingHashShardingFunction; |
| import org.apache.rya.periodic.notification.api.BinPruner; |
| import org.apache.rya.periodic.notification.api.NodeBin; |
| import org.eclipse.rdf4j.model.ValueFactory; |
| import org.eclipse.rdf4j.model.impl.SimpleValueFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.Optional; |
| |
| /** |
| * Deletes {@link BindingSet}s from the indicated Fluo table. |
| */ |
| public class FluoBinPruner implements BinPruner { |
| |
| private static final Logger log = LoggerFactory.getLogger(FluoBinPruner.class); |
| private static final ValueFactory VF = SimpleValueFactory.getInstance(); |
| private final FluoClient client; |
| |
| public FluoBinPruner(final FluoClient client) { |
| this.client = client; |
| } |
| |
| /** |
| * This method deletes BindingSets in the specified bin from the BindingSet |
| * Column of the indicated Fluo nodeId |
| * |
| * @param nodeBin |
| * - Fluo nodeId |
| */ |
| @Override |
| public void pruneBindingSetBin(final NodeBin nodeBin) { |
| final String id = nodeBin.getNodeId(); |
| final long bin = nodeBin.getBin(); |
| try (Transaction tx = client.newTransaction()) { |
| final Optional<NodeType> type = NodeType.fromNodeId(id); |
| if (!type.isPresent()) { |
| log.trace("Unable to determine NodeType from id: " + id); |
| throw new RuntimeException(); |
| } |
| final Column batchInfoColumn = type.get().getResultColumn(); |
| final Bytes batchInfoSpanPrefix = BindingHashShardingFunction.getShardedScanPrefix(id, VF.createLiteral(bin)); |
| final SpanBatchDeleteInformation batchInfo = SpanBatchDeleteInformation.builder().setColumn(batchInfoColumn) |
| .setSpan(Span.prefix(batchInfoSpanPrefix)).build(); |
| BatchInformationDAO.addBatch(tx, id, batchInfo); |
| tx.commit(); |
| } |
| } |
| |
| } |