| /* |
| * 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.iceberg; |
| |
| import org.apache.iceberg.ManifestEntriesTable.ManifestReadTask; |
| import org.apache.iceberg.expressions.Expression; |
| import org.apache.iceberg.expressions.Expressions; |
| import org.apache.iceberg.expressions.ResidualEvaluator; |
| import org.apache.iceberg.io.CloseableIterable; |
| import org.apache.iceberg.relocated.com.google.common.collect.Sets; |
| import org.apache.iceberg.types.TypeUtil; |
| import org.apache.iceberg.types.Types.StructType; |
| |
| /** |
| * A {@link Table} implementation that exposes a table's manifest entries as rows, for both delete |
| * and data files. |
| * |
| * <p>WARNING: this table exposes internal details, like files that have been deleted. For a table |
| * of the live data files, use {@link DataFilesTable}. |
| */ |
| public class AllEntriesTable extends BaseMetadataTable { |
| |
| AllEntriesTable(TableOperations ops, Table table) { |
| this(ops, table, table.name() + ".all_entries"); |
| } |
| |
| AllEntriesTable(TableOperations ops, Table table, String name) { |
| super(ops, table, name); |
| } |
| |
| @Override |
| public TableScan newScan() { |
| return new Scan(operations(), table(), schema()); |
| } |
| |
| @Override |
| public Schema schema() { |
| StructType partitionType = Partitioning.partitionType(table()); |
| Schema schema = ManifestEntry.getSchema(partitionType); |
| if (partitionType.fields().size() < 1) { |
| // avoid returning an empty struct, which is not always supported. instead, drop the partition |
| // field (id 102) |
| return TypeUtil.selectNot(schema, Sets.newHashSet(102)); |
| } else { |
| return schema; |
| } |
| } |
| |
| @Override |
| MetadataTableType metadataTableType() { |
| return MetadataTableType.ALL_ENTRIES; |
| } |
| |
| private static class Scan extends BaseAllMetadataTableScan { |
| |
| Scan(TableOperations ops, Table table, Schema schema) { |
| super(ops, table, schema, MetadataTableType.ALL_ENTRIES); |
| } |
| |
| private Scan(TableOperations ops, Table table, Schema schema, TableScanContext context) { |
| super(ops, table, schema, MetadataTableType.ALL_ENTRIES, context); |
| } |
| |
| @Override |
| protected TableScan newRefinedScan( |
| TableOperations ops, Table table, Schema schema, TableScanContext context) { |
| return new Scan(ops, table, schema, context); |
| } |
| |
| @Override |
| protected CloseableIterable<FileScanTask> doPlanFiles() { |
| CloseableIterable<ManifestFile> manifests = |
| reachableManifests(snapshot -> snapshot.allManifests(tableOps().io())); |
| |
| String schemaString = SchemaParser.toJson(schema()); |
| String specString = PartitionSpecParser.toJson(PartitionSpec.unpartitioned()); |
| Expression filter = shouldIgnoreResiduals() ? Expressions.alwaysTrue() : filter(); |
| ResidualEvaluator residuals = ResidualEvaluator.unpartitioned(filter); |
| |
| return CloseableIterable.transform( |
| manifests, |
| manifest -> |
| new ManifestReadTask( |
| table(), manifest, schema(), schemaString, specString, residuals)); |
| } |
| } |
| } |