| /* |
| * 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.iotdb.tsfile.utils; |
| |
| import java.io.Serializable; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| |
| /** |
| * Override compareTo() and equals() function to Binary class. This class is used to accept Java |
| * String type |
| */ |
| public class Binary implements Comparable<Binary>, Serializable { |
| |
| private static final long serialVersionUID = 6394197743397020735L; |
| public static final Binary EMPTY_VALUE = new Binary(new byte[0]); |
| |
| private byte[] values; |
| |
| /** if the bytes v is modified, the modification is visible to this binary. */ |
| public Binary(byte[] v) { |
| this.values = v; |
| } |
| |
| public Binary(String s, Charset charset) { |
| this.values = (s == null) ? null : s.getBytes(charset); |
| } |
| |
| @Override |
| public int compareTo(Binary other) { |
| if (other == null) { |
| if (this.values == null) { |
| return 0; |
| } else { |
| return 1; |
| } |
| } |
| |
| // copied from StringLatin1.compareT0 |
| int len1 = getLength(); |
| int len2 = other.getLength(); |
| int lim = Math.min(len1, len2); |
| for (int k = 0; k < lim; k++) { |
| if (this.values[k] != other.values[k]) { |
| return getChar(values, k) - getChar(other.values, k); |
| } |
| } |
| return len1 - len2; |
| } |
| |
| // avoid overflow |
| private char getChar(byte[] val, int index) { |
| return (char) (val[index] & 0xff); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) { |
| return true; |
| } |
| if (other == null) { |
| return false; |
| } |
| if (getClass() != other.getClass()) { |
| return false; |
| } |
| |
| return compareTo((Binary) other) == 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(values); |
| } |
| |
| /** |
| * get length. |
| * |
| * @return length |
| */ |
| public int getLength() { |
| if (this.values == null) { |
| return -1; |
| } |
| return this.values.length; |
| } |
| |
| public String getStringValue(Charset charset) { |
| return new String(this.values, charset); |
| } |
| |
| @Override |
| public String toString() { |
| // use UTF_8 by default since toString do not provide parameter |
| return getStringValue(StandardCharsets.UTF_8); |
| } |
| |
| public byte[] getValues() { |
| return values; |
| } |
| |
| public void setValues(byte[] values) { |
| this.values = values; |
| } |
| } |