1/*2 * Licensed to the Apache Software Foundation (ASF) under one3 * or more contributor license agreements. See the NOTICE file4 * distributed with this work for additional information5 * regarding copyright ownership. The ASF licenses this file6 * to you under the Apache License, Version 2.0 (the7 * "License"); you may not use this file except in compliance8 * with the License. You may obtain a copy of the License at9 *10 * http://www.apache.org/licenses/LICENSE-2.011 *12 * Unless required by applicable law or agreed to in writing, software13 * distributed under the License is distributed on an "AS IS" BASIS,14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.15 * See the License for the specific language governing permissions and16 * limitations under the License.17 */1819package org.apache.giraph.io.hcatalog;
2021import com.google.common.base.Splitter;
22import com.google.common.collect.Lists;
23import com.google.common.collect.Maps;
2425import java.util.List;
26import java.util.Map;
2728/**29 * Utilities and helpers for working with Hive tables.30 */31publicclassHiveUtils {
32// TODO use Hive util class if this is already provided by it3334/**35 * Private constructor for helper class.36 */37privateHiveUtils() {
38// Do nothing.39 }
4041/**42 * @param outputTablePartitionString table partition string43 * @return Map44 */45publicstatic Map<String, String> parsePartitionValues(
46 String outputTablePartitionString) {
47if (outputTablePartitionString == null) {
48returnnull;
49 }
50 Splitter commaSplitter = Splitter.on(',').omitEmptyStrings().trimResults();
51 Splitter equalSplitter = Splitter.on('=').omitEmptyStrings().trimResults();
52 Map<String, String> partitionValues = Maps.newHashMap();
53for (String keyValStr : commaSplitter.split(outputTablePartitionString)) {
54 List<String> keyVal = Lists.newArrayList(equalSplitter.split(keyValStr));
55if (keyVal.size() != 2) {
56thrownew IllegalArgumentException(
57"Unrecognized partition value format: " +
58 outputTablePartitionString);
59 }
60 partitionValues.put(keyVal.get(0), keyVal.get(1));
61 }
62return partitionValues;
63 }
64 }