| /* |
| * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This source code is provided to illustrate the usage of a given feature |
| * or technique and has been deliberately simplified. Additional steps |
| * required for a production-quality application, such as security checks, |
| * input validation and proper error handling, might not be present in |
| * this sample code. |
| */ |
| |
| |
| package com.sun.tools.example.debug.tty; |
| |
| import com.sun.jdi.Location; |
| import com.sun.jdi.AbsentInformationException; |
| import java.util.List; |
| import java.util.ArrayList; |
| import java.util.StringTokenizer; |
| import java.io.*; |
| |
| class SourceMapper { |
| |
| private final String[] dirs; |
| |
| SourceMapper(List<String> sourcepath) { |
| /* |
| * sourcepath can arrive from the debugee as a List. |
| * (via PathSearchingVirtualMachine.classPath()) |
| */ |
| List<String> dirList = new ArrayList<String>(); |
| for (String element : sourcepath) { |
| //XXX remove .jar and .zip files; we want only directories on |
| //the source path. (Bug ID 4186582) |
| if ( ! (element.endsWith(".jar") || |
| element.endsWith(".zip"))) { |
| dirList.add(element); |
| } |
| } |
| dirs = dirList.toArray(new String[0]); |
| } |
| |
| SourceMapper(String sourcepath) { |
| /* |
| * sourcepath can also arrive from the command line |
| * as a String. (via "-sourcepath") |
| * |
| * Using File.pathSeparator as delimiter below is OK |
| * because we are on the same machine as the command |
| * line originiated. |
| */ |
| StringTokenizer st = new StringTokenizer(sourcepath, |
| File.pathSeparator); |
| List<String> dirList = new ArrayList<String>(); |
| while (st.hasMoreTokens()) { |
| String s = st.nextToken(); |
| //XXX remove .jar and .zip files; we want only directories on |
| //the source path. (Bug ID 4186582) |
| if ( ! (s.endsWith(".jar") || |
| s.endsWith(".zip"))) { |
| dirList.add(s); |
| } |
| } |
| dirs = dirList.toArray(new String[0]); |
| } |
| |
| /* |
| * Return the current sourcePath as a String. |
| */ |
| String getSourcePath() { |
| int i = 0; |
| StringBuffer sp; |
| if (dirs.length < 1) { |
| return ""; //The source path is empty. |
| } else { |
| sp = new StringBuffer(dirs[i++]); |
| } |
| for (; i < dirs.length; i++) { |
| sp.append(File.pathSeparator); |
| sp.append(dirs[i]); |
| } |
| return sp.toString(); |
| } |
| |
| /** |
| * Return a File cooresponding to the source of this location. |
| * Return null if not available. |
| */ |
| File sourceFile(Location loc) { |
| try { |
| String filename = loc.sourceName(); |
| String refName = loc.declaringType().name(); |
| int iDot = refName.lastIndexOf('.'); |
| String pkgName = (iDot >= 0)? refName.substring(0, iDot+1) : ""; |
| String full = pkgName.replace('.', File.separatorChar) + filename; |
| for (int i= 0; i < dirs.length; ++i) { |
| File path = new File(dirs[i], full); |
| if (path.exists()) { |
| return path; |
| } |
| } |
| return null; |
| } catch (AbsentInformationException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Return a BufferedReader cooresponding to the source |
| * of this location. |
| * Return null if not available. |
| * Note: returned reader must be closed. |
| */ |
| BufferedReader sourceReader(Location loc) { |
| File sourceFile = sourceFile(loc); |
| if (sourceFile == null) { |
| return null; |
| } |
| try { |
| return new BufferedReader(new FileReader(sourceFile)); |
| } catch(IOException exc) { |
| } |
| return null; |
| } |
| } |