@Override
public void prepend(char[] chars, int offset, int length, IUnitChain unitChain) {
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
try (BytesBuilder bb = BytesBuilder.get()) {
cc.encode(chars, offset, length, bb);
length = bb.length();
IUnit unit = Util.firstUnit(unitChain);
while ((length -= Helper.prepend(bb, 0, length, unit)) > 0)
unit = Util.prependNewUnit(unitChain);
}
}
@Override
public char[] get(IUnitChain unitChain, int index) {
final ByteBufferArray bba = ByteBufferArray.get();
try {
IUnit unit = unitChain.currentUnit();
bba.add(unit.getByteBufferForRead(index, unit.size() - index));
while ((unit = unitChain.nextUnit()) != null)
bba.add(unit.getByteBufferForRead(0, unit.size()));
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
return cc.decode(bba.array(), 0, bba.size());
} finally {
bba.clear();
}
}
@Override
public char[] read(IUnitChain unitChain) {
final ByteBufferArray bba = ByteBufferArray.get();
try {
IUnit unit = unitChain.currentUnit();
bba.add(unit.getByteBufferForRead(unit.position(), unit.remaining()));
unit.position(unit.size());
while ((unit = unitChain.nextUnit()) != null) {
bba.add(unit.getByteBufferForRead(unit.position(), unit.remaining()));
unit.position(unit.size());
}
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
return cc.decode(bba.array(), 0, bba.size());
} finally {
bba.clear();
}
}
@Override
public char[] read(IUnitChain unitChain, int length) {
if (length < 0) throw new IllegalArgumentException();
if (length == 0) return Helper.EMPTY_CHARS;
final ByteBufferArray bba = ByteBufferArray.get();
try {
IUnit unit = unitChain.currentUnit();
bba.add(unit.getByteBufferForRead(unit.position(), length));
while ((length -= unit.skip(length)) > 0) {
unit = unitChain.nextUnit();
bba.add(unit.getByteBufferForRead(unit.position(), length));
}
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
return cc.decode(bba.array(), 0, bba.size());
} finally {
bba.clear();
}
}
@Override
public char[] get(IUnitChain unitChain, int index, int length) {
if (length < 0) throw new IndexOutOfBoundsException();
if (length == 0) return Helper.EMPTY_CHARS;
final ByteBufferArray bba = ByteBufferArray.get();
try {
IUnit unit = unitChain.currentUnit();
bba.add(unit.getByteBufferForRead(index, length));
length -= (unit.size() - index);
while (length > 0) {
unit = unitChain.nextUnit();
if (unit == null) throw new IndexOutOfBoundsException();
bba.add(unit.getByteBufferForRead(0, length));
length -= unit.size();
}
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
return cc.decode(bba.array(), 0, bba.size());
} finally {
bba.clear();
}
}
@Override
public void write(char[] chars, int offset, int length, IUnitChain unitChain) {
final ICharsetCodec cc = CharsetCodec.get(m_charsetName);
Helper.write(cc, CharBuffer.wrap(chars, offset, length), unitChain);
}
