001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2009 SonarSource SA 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar 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 * Sonar 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 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020 package org.sonar.java.bytecode.asm; 021 022 import java.io.File; 023 import java.io.FileInputStream; 024 import java.io.FileNotFoundException; 025 import java.io.IOException; 026 import java.io.InputStream; 027 028 import org.apache.commons.io.IOUtils; 029 import org.objectweb.asm.ClassReader; 030 import org.sonar.squid.api.AnalysisException; 031 032 public class AsmClassReader { 033 034 public AsmClass readClass(InputStream reader) { 035 try { 036 AsmClassVisitor classVisitor = new AsmClassVisitor(); 037 ClassReader asmReader = new ClassReader(reader); 038 asmReader.accept(classVisitor, 0); 039 return classVisitor.getAsmClass(); 040 } catch (IOException e) { 041 throw new AnalysisException("Unable to read bytecode", e); 042 } 043 } 044 045 public AsmClass readClass(String className) { 046 return readClass(ClassLoader.getSystemResourceAsStream(className)); 047 } 048 049 public AsmClass readClass(File file) { 050 FileInputStream input = null; 051 try { 052 input = new FileInputStream(file); 053 return readClass(input); 054 055 } catch (FileNotFoundException e) { 056 throw new AnalysisException("Unable to read file : " + file.getAbsolutePath(), e); 057 058 } finally { 059 IOUtils.closeQuietly(input); 060 } 061 } 062 }