| /* |
| * 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.carbondata.core.indexstore; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.io.Serializable; |
| |
| import org.apache.hadoop.io.Writable; |
| |
| /** |
| * Blocklet |
| */ |
| public class Blocklet implements Writable, Serializable { |
| |
| /** file path of this blocklet */ |
| private String filePath; |
| |
| /** id to identify the blocklet inside the block (it is a sequential number) */ |
| private String blockletId; |
| |
| /** |
| * flag to specify whether to consider blocklet Id in equals and hashcode comparison. This is |
| * because when CACHE_LEVEL='BLOCK' which is default value, the blocklet ID returned by |
| * BlockIndex pruning will always be -1 and other indexes will give the the correct blocklet |
| * ID. Therefore if we compare -1 with correct blocklet ID the comparison will become wrong and |
| * always false will be returned resulting in incorrect result. Default value for flag is true. |
| */ |
| private boolean compareBlockletIdForObjectMatching = true; |
| |
| public Blocklet(String filePath, String blockletId) { |
| this.filePath = filePath; |
| this.blockletId = blockletId; |
| } |
| |
| public Blocklet(String filePath, String blockletId, boolean compareBlockletIdForObjectMatching) { |
| this(filePath, blockletId); |
| this.compareBlockletIdForObjectMatching = compareBlockletIdForObjectMatching; |
| } |
| |
| // For serialization purpose |
| public Blocklet() { |
| } |
| |
| public String getBlockletId() { |
| return blockletId; |
| } |
| |
| public String getFilePath() { |
| return filePath; |
| } |
| |
| public void setFilePath(String filePath) { |
| this.filePath = filePath; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| if (filePath == null) { |
| out.writeBoolean(false); |
| } else { |
| out.writeBoolean(true); |
| out.writeUTF(filePath); |
| } |
| if (blockletId == null) { |
| out.writeBoolean(false); |
| } else { |
| out.writeBoolean(true); |
| out.writeUTF(blockletId); |
| } |
| out.writeBoolean(compareBlockletIdForObjectMatching); |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| if (in.readBoolean()) { |
| filePath = in.readUTF(); |
| } |
| if (in.readBoolean()) { |
| blockletId = in.readUTF(); |
| } |
| this.compareBlockletIdForObjectMatching = in.readBoolean(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| Blocklet blocklet = (Blocklet) o; |
| |
| if (filePath != null ? !filePath.equals(blocklet.filePath) : blocklet.filePath != null) { |
| return false; |
| } |
| if (!compareBlockletIdForObjectMatching) { |
| return true; |
| } |
| return blockletId != null ? |
| blockletId.equals(blocklet.blockletId) : |
| blocklet.blockletId == null; |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuffer sb = new StringBuffer("Blocklet{"); |
| sb.append("filePath='").append(filePath).append('\''); |
| sb.append(", blockletId='").append(blockletId).append('\''); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = filePath != null ? filePath.hashCode() : 0; |
| result = 31 * result; |
| if (compareBlockletIdForObjectMatching) { |
| result += blockletId != null ? blockletId.hashCode() : 0; |
| } |
| return result; |
| } |
| } |