| // 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.kudu.mapreduce.tools; |
| |
| import java.math.BigInteger; |
| import java.util.Collections; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.apache.yetus.audience.InterfaceStability; |
| |
| import org.apache.kudu.ColumnSchema; |
| import org.apache.kudu.Schema; |
| import org.apache.kudu.Type; |
| import org.apache.kudu.client.CreateTableOptions; |
| import org.apache.kudu.client.PartialRow; |
| |
| /** |
| * Static constants, helper methods, and utility classes for BigLinkedList |
| * implementations. |
| * |
| * Any definitions which must be kept in-sync between ITBLL implementations |
| * should be kept here. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public class BigLinkedListCommon { |
| |
| public static final String TABLE_NAME_KEY = "IntegrationTestBigLinkedList.table"; |
| public static final String DEFAULT_TABLE_NAME = "IntegrationTestBigLinkedList"; |
| public static final String HEADS_TABLE_NAME_KEY = "IntegrationTestBigLinkedList.heads_table"; |
| public static final String DEFAULT_HEADS_TABLE_NAME = "IntegrationTestBigLinkedListHeads"; |
| |
| /** Row key, two times 8 bytes. */ |
| public static final String COLUMN_KEY_ONE = "key1"; |
| public static final int COLUMN_KEY_ONE_IDX = 0; |
| public static final String COLUMN_KEY_TWO = "key2"; |
| public static final int COLUMN_KEY_TWO_IDX = 1; |
| |
| /** Link to the id of the prev node in the linked list, two times 8 bytes. */ |
| public static final String COLUMN_PREV_ONE = "prev1"; |
| public static final int COLUMN_PREV_ONE_IDX = 2; |
| public static final String COLUMN_PREV_TWO = "prev2"; |
| public static final int COLUMN_PREV_TWO_IDX = 3; |
| |
| /** the id of the row within the same client. */ |
| public static final String COLUMN_ROW_ID = "row_id"; |
| public static final int COLUMN_ROW_ID_IDX = 4; |
| |
| /** identifier of the mapred task that generated this row. */ |
| public static final String COLUMN_CLIENT = "client"; |
| public static final int COLUMN_CLIENT_IDX = 5; |
| |
| /** The number of times this row was updated. */ |
| public static final String COLUMN_UPDATE_COUNT = "update_count"; |
| public static final int COLUMN_UPDATE_COUNT_IDX = 6; |
| |
| public enum Counts { |
| |
| /** Nodes which are not contained in the previous pointer of any other nodes. */ |
| UNREFERENCED, |
| |
| /** Nodes which are referenced from another node, but do not appear in the table. */ |
| UNDEFINED, |
| |
| /** Nodes which have a single reference from another node. */ |
| REFERENCED, |
| |
| /** Nodes which have multiple references from other nodes. */ |
| EXTRAREFERENCES, |
| } |
| |
| public static Schema getTableSchema() { |
| return new Schema(ImmutableList.of( |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_KEY_ONE, Type.INT64).key(true).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_KEY_TWO, Type.INT64).key(true).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_PREV_ONE, Type.INT64).nullable(true).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_PREV_TWO, Type.INT64).nullable(true).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_ROW_ID, Type.INT64).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_CLIENT, Type.STRING).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_UPDATE_COUNT, Type.INT32).build() |
| )); |
| } |
| |
| public static Schema getHeadsTableSchema() { |
| return new Schema(ImmutableList.of( |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_KEY_ONE, Type.INT64).key(true).build(), |
| new ColumnSchema.ColumnSchemaBuilder(COLUMN_KEY_TWO, Type.INT64).key(true).build() |
| )); |
| } |
| |
| public static CreateTableOptions getCreateTableOptions(Schema schema, |
| int numReplicas, |
| int rangePartitions, |
| int hashPartitions) { |
| Preconditions.checkArgument(rangePartitions > 0); |
| Preconditions.checkArgument(hashPartitions > 0); |
| |
| CreateTableOptions options = new CreateTableOptions().setNumReplicas(numReplicas); |
| |
| if (rangePartitions > 1) { |
| options.setRangePartitionColumns(ImmutableList.of(COLUMN_KEY_ONE)); |
| BigInteger min = BigInteger.valueOf(Long.MIN_VALUE); |
| BigInteger max = BigInteger.valueOf(Long.MAX_VALUE); |
| BigInteger step = max.multiply(BigInteger.valueOf(2)) |
| .divide(BigInteger.valueOf(rangePartitions)); |
| |
| PartialRow splitRow = schema.newPartialRow(); |
| for (int i = 1; i < rangePartitions; i++) { |
| long key = min.add(step.multiply(BigInteger.valueOf(i))).longValue(); |
| splitRow.addLong(COLUMN_KEY_ONE_IDX, key); |
| options.addSplitRow(splitRow); |
| } |
| } else { |
| options.setRangePartitionColumns(Collections.<String>emptyList()); |
| } |
| |
| if (hashPartitions > 1) { |
| options.addHashPartitions(ImmutableList.of(COLUMN_KEY_ONE), hashPartitions); |
| } |
| |
| return options; |
| } |
| |
| /** |
| * Implementation of the Xoroshiro128+ PRNG. |
| * Copied under the public domain from SquidLib. |
| */ |
| public static class Xoroshiro128PlusRandom { |
| private long state0; |
| private long state1; |
| |
| public Xoroshiro128PlusRandom() { |
| this((long) (Math.random() * Long.MAX_VALUE)); |
| } |
| |
| public Xoroshiro128PlusRandom(long seed) { |
| long state = seed + 0x9E3779B97F4A7C15L; |
| long z = state; |
| z = (z ^ (z >>> 30)) * 0xBF58476D1CE4E5B9L; |
| z = (z ^ (z >>> 27)) * 0x94D049BB133111EBL; |
| state0 = z ^ (z >>> 31); |
| state += state0 + 0x9E3779B97F4A7C15L; |
| z = state; |
| z = (z ^ (z >>> 30)) * 0xBF58476D1CE4E5B9L; |
| z = (z ^ (z >>> 27)) * 0x94D049BB133111EBL; |
| state1 = z ^ (z >>> 31); |
| } |
| |
| public long nextLong() { |
| final long s0 = state0; |
| long s1 = state1; |
| final long result = s0 + s1; |
| |
| s1 ^= s0; |
| state0 = Long.rotateLeft(s0, 55) ^ s1 ^ (s1 << 14); // a, b |
| state1 = Long.rotateLeft(s1, 36); // c |
| |
| return result; |
| } |
| |
| public void nextBytes(final byte[] bytes) { |
| int i = bytes.length; |
| int n = 0; |
| while (i != 0) { |
| n = Math.min(i, 8); |
| for (long bits = nextLong(); n-- != 0; bits >>>= 8) { |
| bytes[--i] = (byte) bits; |
| } |
| } |
| } |
| } |
| |
| /** Uninstantiable helper class. */ |
| private BigLinkedListCommon() {} |
| } |