private void commonInitializer(File file) throws IOException {
File parent = file.getParentFile();
if (parent == null) parent = new File(System.getProperty("user.dir"));
if (!parent.canWrite()) {
String msg = Logging.getMessage("generic.FolderNoWritePermission", parent.getAbsolutePath());
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
this.targetFile = new RandomAccessFile(file, "rw");
this.theChannel = this.targetFile.getChannel();
}
public ComposeImageTile(Sector sector, String mimeType, Level level, int width, int height)
throws IOException {
super(sector, level, -1, -1); // row and column aren't used and need to signal that
this.width = width;
this.height = height;
this.file =
File.createTempFile(WWIO.DELETE_ON_EXIT_PREFIX, WWIO.makeSuffixForMimeType(mimeType));
}