Coverage Summary for Class: RLPList (org.ethereum.util)

Class Class, % Method, % Line, %
RLPList 100% (1/1) 100% (4/4) 100% (13/13)


1 /* 2  * This file is part of RskJ 3  * Copyright (C) 2017 RSK Labs Ltd. 4  * (derived from ethereumJ library, Copyright (c) 2016 <ether.camp>) 5  * 6  * This program is free software: you can redistribute it and/or modify 7  * it under the terms of the GNU Lesser General Public License as published by 8  * the Free Software Foundation, either version 3 of the License, or 9  * (at your option) any later version. 10  * 11  * This program is distributed in the hope that it will be useful, 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14  * GNU Lesser General Public License for more details. 15  * 16  * You should have received a copy of the GNU Lesser General Public License 17  * along with this program. If not, see <http://www.gnu.org/licenses/>. 18  */ 19  20 package org.ethereum.util; 21  22 import java.util.Arrays; 23 import java.util.List; 24  25 /** 26  * @author Roman Mandeleil 27  * @since 21.04.14 28  */ 29 public class RLPList extends RLPItem implements RLPElement { 30  private List<RLPElement> elements; 31  private final int offset; 32  33  public RLPList(byte[] rlpData, int offset) { 34  super(rlpData); 35  this.offset = offset; 36  } 37  38  public int size() { 39  this.checkElements(); 40  41  return this.elements.size(); 42  } 43  44  public RLPElement get(int n) { 45  this.checkElements(); 46  47  return this.elements.get(n); 48  } 49  50  private void checkElements() { 51  if (this.elements != null) { 52  return; 53  } 54  55  byte[] bytes = this.getRLPData(); 56  byte[] content = Arrays.copyOfRange(bytes, offset, bytes.length); 57  58  this.elements = RLP.decode2(content); 59  } 60 }