| /* |
| * 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.phoenix.schema; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.phoenix.query.QueryConstants; |
| import org.apache.phoenix.util.ByteUtil; |
| |
| |
| public class SequenceKey implements Comparable<SequenceKey> { |
| private final String tenantId; |
| private final String schemaName; |
| private final String sequenceName; |
| private final byte[] key; |
| |
| public SequenceKey(String tenantId, String schemaName, String sequenceName, int nBuckets) { |
| this.tenantId = tenantId; |
| this.schemaName = schemaName; |
| this.sequenceName = sequenceName; |
| this.key = ByteUtil.concat((nBuckets <= 0 ? ByteUtil.EMPTY_BYTE_ARRAY : QueryConstants.SEPARATOR_BYTE_ARRAY), tenantId == null ? ByteUtil.EMPTY_BYTE_ARRAY : Bytes.toBytes(tenantId), QueryConstants.SEPARATOR_BYTE_ARRAY, schemaName == null ? ByteUtil.EMPTY_BYTE_ARRAY : Bytes.toBytes(schemaName), QueryConstants.SEPARATOR_BYTE_ARRAY, Bytes.toBytes(sequenceName)); |
| if (nBuckets > 0) { |
| key[0] = SaltingUtil.getSaltingByte(key, SaltingUtil.NUM_SALTING_BYTES, key.length - SaltingUtil.NUM_SALTING_BYTES, nBuckets); |
| } |
| } |
| |
| public byte[] getKey() { |
| return key; |
| |
| } |
| public String getTenantId() { |
| return tenantId; |
| } |
| |
| public String getSchemaName() { |
| return schemaName; |
| } |
| |
| public String getSequenceName() { |
| return sequenceName; |
| } |
| |
| @Override |
| public int compareTo(SequenceKey that) { |
| int c = this.tenantId == that.getTenantId() ? 0 : this.tenantId == null ? -1 : that.getTenantId() == null ? 1 : this.tenantId.compareTo(that.getTenantId()); |
| if (c == 0) { |
| c = this.schemaName == that.getSchemaName() ? 0 : this.schemaName == null ? -1 : that.getSchemaName() == null ? 1 : this.schemaName.compareTo(that.getSchemaName()); |
| if (c == 0) { |
| return sequenceName.compareTo(that.getSequenceName()); |
| } |
| } |
| return c; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((tenantId == null) ? 0 : tenantId.hashCode()); |
| result = prime * result + ((schemaName == null) ? 0 : schemaName.hashCode()); |
| result = prime * result + sequenceName.hashCode(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) return true; |
| if (obj == null) return false; |
| if (getClass() != obj.getClass()) return false; |
| SequenceKey other = (SequenceKey)obj; |
| return this.compareTo(other) == 0; |
| } |
| } |