| /* |
| * 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.drill.exec.store.hbase; |
| |
| |
| import org.apache.drill.common.PlanStringBuilder; |
| import org.apache.drill.exec.planner.logical.DrillTableSelection; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.filter.Filter; |
| import org.apache.hadoop.hbase.util.Bytes; |
| |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| |
| public class HBaseScanSpec implements DrillTableSelection { |
| |
| protected String tableName; |
| protected byte[] startRow; |
| protected byte[] stopRow; |
| |
| protected Filter filter; |
| |
| @JsonCreator |
| public HBaseScanSpec(@JsonProperty("tableName") String tableName, |
| @JsonProperty("startRow") byte[] startRow, |
| @JsonProperty("stopRow") byte[] stopRow, |
| @JsonProperty("serializedFilter") byte[] serializedFilter, |
| @JsonProperty("filterString") String filterString) { |
| if (serializedFilter != null && filterString != null) { |
| throw new IllegalArgumentException("The parameters 'serializedFilter' or 'filterString' cannot be specified at the same time."); |
| } |
| this.tableName = tableName; |
| this.startRow = startRow; |
| this.stopRow = stopRow; |
| if (filterString != null) { |
| this.filter = HBaseUtils.parseFilterString(filterString); |
| } else { |
| this.filter = HBaseUtils.deserializeFilter(serializedFilter); |
| } |
| } |
| |
| public HBaseScanSpec(String tableName, byte[] startRow, byte[] stopRow, Filter filter) { |
| this.tableName = tableName; |
| this.startRow = startRow; |
| this.stopRow = stopRow; |
| this.filter = filter; |
| } |
| |
| public HBaseScanSpec(String tableName) { |
| this.tableName = tableName; |
| } |
| |
| public String getTableName() { |
| return tableName; |
| } |
| |
| public byte[] getStartRow() { |
| return startRow == null ? HConstants.EMPTY_START_ROW : startRow; |
| } |
| |
| public byte[] getStopRow() { |
| return stopRow == null ? HConstants.EMPTY_START_ROW : stopRow; |
| } |
| |
| @JsonIgnore |
| public Filter getFilter() { |
| return this.filter; |
| } |
| |
| public byte[] getSerializedFilter() { |
| return (this.filter != null) ? HBaseUtils.serializeFilter(this.filter) : null; |
| } |
| |
| @Override |
| public String toString() { |
| return new PlanStringBuilder(this) |
| .field("tableName", tableName) |
| .field("startRow", startRow == null ? null : Bytes.toStringBinary(startRow)) |
| .field("stopRow", stopRow == null ? null : Bytes.toStringBinary(stopRow)) |
| .field("filter", filter == null ? null : filter.toString()) |
| .toString(); |
| } |
| |
| @Override |
| public String digest() { |
| return toString(); |
| } |
| } |