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https://issues.apache.org/jira/browse/GOBBLIN-1709?focusedWorklogId=809585&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-809585
]
ASF GitHub Bot logged work on GOBBLIN-1709:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 16/Sep/22 16:40
Start Date: 16/Sep/22 16:40
Worklog Time Spent: 10m
Work Description: meethngala commented on code in PR #3560:
URL: https://github.com/apache/gobblin/pull/3560#discussion_r973206997
##########
gobblin-data-management/src/main/java/org/apache/gobblin/data/management/copy/iceberg/IcebergDatasetFinder.java:
##########
@@ -0,0 +1,97 @@
+/*
+ * 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.gobblin.data.management.copy.iceberg;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang.StringUtils;
+import org.apache.gobblin.dataset.DatasetConstants;
+import org.apache.gobblin.dataset.IterableDatasetFinder;
+import org.apache.gobblin.util.HadoopUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+
+/**
+ * Finds {@link IcebergDataset}s. Will look for tables in a database using a
{@link IcebergCatalog},
+ * and creates a {@link IcebergDataset} for each one.
+ */
+@Slf4j
+@AllArgsConstructor
+public class IcebergDatasetFinder implements
IterableDatasetFinder<IcebergDataset> {
+
+ public static final String ICEBERG_DATASET_PREFIX =
DatasetConstants.PLATFORM_ICEBERG + ".dataset";
+ public static final String ICEBERG_HIVE_CATALOG_METASTORE_URI_KEY =
ICEBERG_DATASET_PREFIX + ".hive.metastore.uri";
+ public static final String ICEBERG_DB_NAME = ICEBERG_DATASET_PREFIX +
".database.name";
+ public static final String ICEBERG_TABLE_NAME = ICEBERG_DATASET_PREFIX +
".table.name";
+
+ private String dbName;
+ private String tblName;
+ private final Properties properties;
+ protected final FileSystem fs;
+
+ /**
+ * Finds all {@link IcebergDataset}s in the file system using the Iceberg
Catalog.
+ * @return List of {@link IcebergDataset}s in the file system.
+ * @throws IOException
+ */
+ @Override
+ public List<IcebergDataset> findDatasets() throws IOException {
+ List<IcebergDataset> matchingDatasets = new ArrayList<>();
+ /*
+ * Both Iceberg database name and table name are mandatory based on
current implementation.
+ * Later we may explore supporting datasets similar to Hive
+ */
+ if (StringUtils.isNotBlank(properties.getProperty(ICEBERG_DB_NAME)) ||
StringUtils.isNotBlank(properties.getProperty(ICEBERG_TABLE_NAME))) {
+ throw new IllegalArgumentException(String.format("Iceberg database name:
{%s} or Iceberg table name: {%s} is missing",
+ ICEBERG_DB_NAME, ICEBERG_TABLE_NAME));
+ }
+ this.dbName = properties.getProperty(ICEBERG_DB_NAME);
+ this.tblName = properties.getProperty(ICEBERG_TABLE_NAME);
+
+ Configuration configuration =
HadoopUtils.getConfFromProperties(properties);
+
+ IcebergCatalog icebergCatalog =
IcebergCatalogFactory.create(configuration);
+ /* Each Iceberg dataset maps to an Iceberg table
+ * TODO: The user provided database and table names needs to be
pre-checked and verified against the existence of a valid Iceberg table
+ */
+ matchingDatasets.add(createIcebergDataset(dbName, tblName, icebergCatalog,
properties, fs));
+ log.info("Found {} matching datasets: {}", matchingDatasets.size(),
matchingDatasets);
Review Comment:
done!
Issue Time Tracking
-------------------
Worklog Id: (was: 809585)
Time Spent: 6h 40m (was: 6.5h)
> Create work units for Hive Catalog based Iceberg Datasets to support Distcp
> for Iceberg
> ---------------------------------------------------------------------------------------
>
> Key: GOBBLIN-1709
> URL: https://issues.apache.org/jira/browse/GOBBLIN-1709
> Project: Apache Gobblin
> Issue Type: New Feature
> Components: distcp-ng
> Reporter: Meeth Gala
> Assignee: Issac Buenrostro
> Priority: Major
> Time Spent: 6h 40m
> Remaining Estimate: 0h
>
> We want to support Distcp for Iceberg based datasets.
> As a pilot, we are starting with Hive Catalog and will expand the
> functionality to cover all Iceberg based datasets.
>
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