package org.objectweb.celtix.tools.utils;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.logging.Logger;
import org.objectweb.celtix.common.i18n.Message;
import org.objectweb.celtix.common.logging.LogUtils;
import org.objectweb.celtix.tools.common.ToolException;
public class FileWriterUtil {
private static final Logger LOG = LogUtils.getL7dLogger(FileWriterUtil.class);
private final File target;
public FileWriterUtil(String targetDir) throws ToolException {
target = new File(targetDir);
if (!(target.exists()) || !(target.isDirectory())) {
Message msg = new Message("DIRECTORY_NOT_EXIST", LOG, target);
throw new ToolException(msg);
}
}
public Writer getWriter(String packageName, String fileName) throws IOException {
File dir = buildDir(packageName);
File fn = new File(dir , fileName);
if (fn.exists() && !fn.delete()) {
throw new IOException(fn + ": Can't delete previous version");
}
return new FileWriter(fn);
}
public boolean isCollision(String packageName, String fileName) throws ToolException {
File dir = buildDir(packageName);
return fileExist(dir, fileName);
}
private File buildDir(String packageName) {
File dir;
if (packageName == null) {
dir = target;
} else {
dir = new File(target, toDir(packageName));
}
if (!dir.exists()) {
dir.mkdirs();
}
return dir;
}
private boolean fileExist(File dir, String fileName) {
return new File(dir, fileName).exists();
}
private String toDir(String packageName) {
return packageName.replace('.' , File.separatorChar);
}
}