@Override
public int read() throws IOException {
int ch = super.read();
if (ch < 0) {
return ch;
}
return converter.convert((char) ch);
}
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
int count = super.read(cbuf, off, len);
if (count > 0) {
converter.convert(cbuf, off, count);
}
return count;
}
// Perform an OS/400 CCSID to Unicode conversion.
final String byteArrayToString(
byte[] buf, int offset, int length, BidiConversionProperties properties) {
if (Trace.traceOn_)
Trace.log(
Trace.CONVERSION,
"Converting byte array to string for ccsid: " + ccsid_,
buf,
offset,
length);
// Length could be twice as long because of surrogates
char[] dest = new char[length];
int to = 0;
for (int i = 0; i < length / 2; ++i) {
try {
int fromIndex =
((0x00FF & buf[(i * 2) + offset]) << 8) + (0x00FF & buf[(i * 2) + 1 + offset]);
dest[to] = toUnicode_[fromIndex];
// Check if surrogate lookup needed.
if (dest[to] == 0xD800) {
if (toUnicodeSurrogate_ != null) {
char[] surrogates = toUnicodeSurrogate_[fromIndex];
if (surrogates != null) {
dest[to] = surrogates[0];
to++;
dest[to] = surrogates[1];
to++;
} else {
// surrogate not defined, replace with sub
dest[to] = dbSubUnic_;
to++;
}
} else {
// Not handling surrogates, replace with sub
dest[to] = dbSubUnic_;
to++;
}
} else {
// Single character. Increment counter;
to++;
}
} catch (ArrayIndexOutOfBoundsException aioobe) {
// Swallow this if we are doing fault-tolerant conversion.
if (!CharConverter.isFaultTolerantConversion()) {
throw aioobe;
}
}
}
if (Trace.traceOn_)
Trace.log(
Trace.CONVERSION,
"Destination string for ccsid: " + ccsid_,
ConvTable.dumpCharArray(dest));
return String.copyValueOf(dest, 0, to);
}
public CharConvertReader(Reader in, String converterName) {
this(in, CharConverter.getInstance(converterName));
}
