ReaderWrapper.java
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package ipipan.clarin.tei.impl.io.read;
import java.io.IOException;
import java.io.Reader;
/**
*
* @author mlenart
*/
class ReaderWrapper extends Reader {
private final static int BYTE_ORDER_MARK = 65279;
private final Reader reader;
private final char[] firstChar = new char[1];
private int off = 0;
ReaderWrapper(Reader reader) throws IOException {
this.reader = reader;
int n = this.reader.read(firstChar);
if (n < 1) {
throw new IOException("Stream is too short");
} else {
if (firstChar[0] == BYTE_ORDER_MARK) {
// logger.warn("EQUALS");
off = 1;
}
}
}
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
int i = 0;
if (this.off < 1 && len > 0) {
cbuf[off + i] = firstChar[this.off];
this.off++;
i++;
}
if (i < len) {
return reader.read(cbuf, off + i, len - i) + i;
} else {
return i;
}
}
@Override
public void close() throws IOException {
reader.close();
}
}