/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.ant.taskdefs;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.taskdefs.Execute;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class Native2AsciiTask extends FileSetTask {
private boolean update = false;
public final boolean isUpdate() {
return update;
}
@Override
protected void processFile(File file) throws IOException {
if (containsNonAscii(file)) {
final File tmp = File.createTempFile("jnode", "n2a");
try {
final String[] cmd = {"native2ascii", file.getAbsolutePath(),
tmp.getAbsolutePath()};
final Execute exe = new Execute();
exe.setCommandline(cmd);
final int rc = exe.execute();
if (rc != 0) {
throw new BuildException("native2ascii failed");
}
if (file.length() != tmp.length()) {
// We have a changed file
if (update) {
getProject().copyFile(tmp, file);
log("Updated " + file);
} else {
log("Update needed " + file);
}
}
} finally {
tmp.delete();
}
}
}
private boolean containsNonAscii(File file) throws IOException {
final FileInputStream is = new FileInputStream(file);
try {
final BufferedInputStream bis = new BufferedInputStream(is);
int v;
while ((v = bis.read()) >= 0) {
if ((v & 0xFF) > 128) {
return true;
}
}
return false;
} finally {
is.close();
}
}
public final void setUpdate(boolean update) {
this.update = update;
}
}