001/* 002 * SonarQube 003 * Copyright (C) 2009-2017 SonarSource SA 004 * mailto:info AT sonarsource DOT com 005 * 006 * This program is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * This program is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020package org.sonar.api.batch.fs.internal.charhandler; 021 022public class LineOffsetCounter extends CharHandler { 023 private long currentOriginalOffset = 0; 024 private IntArrayList originalLineOffsets = new IntArrayList(); 025 private long lastValidOffset = 0; 026 027 public LineOffsetCounter() { 028 originalLineOffsets.add(0); 029 } 030 031 @Override 032 public void handleAll(char c) { 033 currentOriginalOffset++; 034 } 035 036 @Override 037 public void newLine() { 038 if (currentOriginalOffset > Integer.MAX_VALUE) { 039 throw new IllegalStateException("File is too big: " + currentOriginalOffset); 040 } 041 originalLineOffsets.add((int) currentOriginalOffset); 042 } 043 044 @Override 045 public void eof() { 046 lastValidOffset = currentOriginalOffset; 047 } 048 049 public int[] getOriginalLineOffsets() { 050 return originalLineOffsets.trimAndGet(); 051 } 052 053 public int getLastValidOffset() { 054 if (lastValidOffset > Integer.MAX_VALUE) { 055 throw new IllegalStateException("File is too big: " + lastValidOffset); 056 } 057 return (int) lastValidOffset; 058 } 059 060}