Coverage Summary for Class: Topic (org.ethereum.rpc)

Class Class, % Method, % Line, %
Topic 0% (0/1) 0% (0/7) 0% (0/15)


1 /* 2  * This file is part of RskJ 3  * Copyright (C) 2018 RSK Labs Ltd. 4  * 5  * This program is free software: you can redistribute it and/or modify 6  * it under the terms of the GNU Lesser General Public License as published by 7  * the Free Software Foundation, either version 3 of the License, or 8  * (at your option) any later version. 9  * 10  * This program is distributed in the hope that it will be useful, 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13  * GNU Lesser General Public License for more details. 14  * 15  * You should have received a copy of the GNU Lesser General Public License 16  * along with this program. If not, see <http://www.gnu.org/licenses/>. 17  */ 18  19 package org.ethereum.rpc; 20  21 import org.ethereum.util.ByteUtil; 22  23 import java.util.Arrays; 24  25 /** 26  * Created by ajlopez on 18/01/2018. 27  */ 28 public final class Topic { 29  /** 30  * This is the size of a topic in bytes. 31  */ 32  private static final int LENGTH_IN_BYTES = 32; 33  34  private final byte[] bytes; 35  36  /** 37  * @param topic the hex-encoded 32 bytes long topic, with or without 0x prefix. 38  */ 39  public Topic(String topic) { 40  this(TypeConverter.stringHexToByteArray(topic)); 41  } 42  43  /** 44  * @param bytes the 32 bytes long raw topic bytes. 45  */ 46  public Topic(byte[] bytes) { 47  if (bytes.length != LENGTH_IN_BYTES) { 48  throw new RuntimeException(String.format("A topic must be %d bytes long", LENGTH_IN_BYTES)); 49  } 50  51  this.bytes = bytes; 52  } 53  54  public byte[] getBytes() { 55  return bytes; 56  } 57  58  @Override 59  public boolean equals(Object other) { 60  if (this == other) { 61  return true; 62  } 63  64  if (other == null || this.getClass() != other.getClass()) { 65  return false; 66  } 67  68  Topic otherTopic = (Topic) other; 69  70  return Arrays.equals(bytes, otherTopic.bytes); 71  } 72  73  @Override 74  public int hashCode() { 75  return Arrays.hashCode(bytes); 76  } 77  78  @Override 79  public String toString() { 80  return ByteUtil.toHexString(bytes); 81  } 82  83  public String toJsonString() { 84  return TypeConverter.toUnformattedJsonHex(this.getBytes()); 85  } 86 }