| package org.apache.rya.accumulo; |
| |
| /* |
| * 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. |
| */ |
| |
| |
| |
| import static org.apache.rya.accumulo.AccumuloRdfConstants.EMPTY_VALUE; |
| |
| import java.io.IOException; |
| import java.util.AbstractMap.SimpleEntry; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import org.apache.rya.api.RdfCloudTripleStoreConfiguration; |
| import org.apache.rya.api.RdfCloudTripleStoreConstants; |
| import org.apache.rya.api.domain.RyaStatement; |
| import org.apache.rya.api.resolver.RyaTripleContext; |
| import org.apache.rya.api.resolver.triple.TripleRow; |
| import org.apache.rya.api.resolver.triple.TripleRowResolverException; |
| |
| import org.apache.accumulo.core.data.Key; |
| import org.apache.accumulo.core.data.Value; |
| import org.apache.accumulo.core.security.ColumnVisibility; |
| import org.apache.hadoop.io.Text; |
| |
| public class RyaTableKeyValues { |
| public static final ColumnVisibility EMPTY_CV = new ColumnVisibility(); |
| public static final Text EMPTY_CV_TEXT = new Text(EMPTY_CV.getExpression()); |
| |
| RyaTripleContext instance; |
| |
| private RyaStatement stmt; |
| private Collection<Map.Entry<Key, Value>> spo = new ArrayList<Map.Entry<Key, Value>>(); |
| private Collection<Map.Entry<Key, Value>> po = new ArrayList<Map.Entry<Key, Value>>(); |
| private Collection<Map.Entry<Key, Value>> osp = new ArrayList<Map.Entry<Key, Value>>(); |
| |
| public RyaTableKeyValues(RyaStatement stmt, RdfCloudTripleStoreConfiguration conf) { |
| this.stmt = stmt; |
| this.instance = RyaTripleContext.getInstance(conf); |
| } |
| |
| public Collection<Map.Entry<Key, Value>> getSpo() { |
| return spo; |
| } |
| |
| public Collection<Map.Entry<Key, Value>> getPo() { |
| return po; |
| } |
| |
| public Collection<Map.Entry<Key, Value>> getOsp() { |
| return osp; |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| public RyaTableKeyValues invoke() throws IOException { |
| /** |
| * TODO: If there are contexts, do we still replicate the information into the default graph as well |
| * as the named graphs? |
| */try { |
| Map<RdfCloudTripleStoreConstants.TABLE_LAYOUT, org.apache.rya.api.resolver.triple.TripleRow> rowMap = instance.serializeTriple(stmt); |
| TripleRow tripleRow = rowMap.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.SPO); |
| byte[] columnVisibility = tripleRow.getColumnVisibility(); |
| Text cv = columnVisibility == null ? EMPTY_CV_TEXT : new Text(columnVisibility); |
| Long timestamp = tripleRow.getTimestamp(); |
| timestamp = timestamp == null ? 0l : timestamp; |
| byte[] value = tripleRow.getValue(); |
| Value v = value == null ? EMPTY_VALUE : new Value(value); |
| spo.add(new SimpleEntry(new Key(new Text(tripleRow.getRow()), |
| new Text(tripleRow.getColumnFamily()), |
| new Text(tripleRow.getColumnQualifier()), |
| cv, timestamp), v)); |
| tripleRow = rowMap.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.PO); |
| po.add(new SimpleEntry(new Key(new Text(tripleRow.getRow()), |
| new Text(tripleRow.getColumnFamily()), |
| new Text(tripleRow.getColumnQualifier()), |
| cv, timestamp), v)); |
| tripleRow = rowMap.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.OSP); |
| osp.add(new SimpleEntry(new Key(new Text(tripleRow.getRow()), |
| new Text(tripleRow.getColumnFamily()), |
| new Text(tripleRow.getColumnQualifier()), |
| cv, timestamp), v)); |
| } catch (TripleRowResolverException e) { |
| throw new IOException(e); |
| } |
| return this; |
| } |
| |
| @Override |
| public String toString() { |
| return "RyaTableKeyValues{" + |
| "statement=" + stmt + |
| ", spo=" + spo + |
| ", po=" + po + |
| ", o=" + osp + |
| '}'; |
| } |
| } |