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/*
* 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.
*/
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;
}
}
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