private List<Map.Entry<String, String>> readListFromFile(File file) throws IOException {
InputStream is = new FileInputStream(file);
String str;
try {
str = IOHelper.readInputStreamToString(is, charset);
} finally {
is.close();
}
String[] list = str.split("\0", -1);
List<Map.Entry<String, String>> all = new ArrayList<Map.Entry<String, String>>();
for (int i = 0; i + 1 < list.length; i += 2) {
all.add(new SimpleEntry<String, String>(list[i], list[i + 1]));
}
return all;
}
private File writeIterableToTempFile(Iterable<Map.Entry<String, String>> it) throws IOException {
StringBuilder sb = new StringBuilder();
for (Map.Entry<String, String> me : it) {
if (me.getKey().contains("\0")) {
throw new RuntimeException("Key cannot contain the null character: " + me.getKey());
}
if (me.getValue().contains("\0")) {
throw new RuntimeException(
"Value for key '"
+ me.getKey()
+ "' cannot contain the null "
+ "character: "
+ me.getKey());
}
sb.append(me.getKey()).append('\0');
sb.append(me.getValue()).append('\0');
}
return IOHelper.writeToTempFile(sb.toString(), charset);
}
