Examples with FromByteArray com.amazon.ion.impl.UnifiedInputStreamX.FromByteArray used on opensource projects

Example 1 with FromByteArray

use of com.amazon.ion.impl.UnifiedInputStreamX.FromByteArray in project ion-java by amzn.

the class IonReaderBinaryUserX method seek.

public void seek(IonReaderBinarySpan position) {
    IonReaderBinarySpan pos = position;
    if (pos == null) {
        throw new IllegalArgumentException("Position invalid for binary reader");
    }
    if (!(_input instanceof FromByteArray)) {
        throw new UnsupportedOperationException("Binary seek not implemented for non-byte array backed sources");
    }
    // TODO test that span is within the bounds of the input byte[]
    // manually reset the input specific type of input stream
    FromByteArray input = (FromByteArray) _input;
    input._pos = (int) (pos._offset + _physical_start_offset);
    input._limit = (int) (pos._limit + _physical_start_offset);
    // TODO: these (eof and save points) should be put into
    // a re-init method on the input stream
    input._eof = false;
    for (; ; ) {
        SavePoint sp = input._save_points._active_stack;
        if (sp == null)
            break;
        input._save_points.savePointPopActive(sp);
        sp.free();
    }
    // reset the raw reader
    re_init_raw();
    // reset the system reader
    // - nothing to do
    // reset the user reader
    init_user(this._catalog);
    // now we need to set our symbol table
    _symbols = pos._symbol_table;
// and the other misc state variables we had
// read past before getPosition gets called
// Don't do this, we'll re-read the data from the stream.
// Otherwise, this reader will be in the wrong state.
// For example, getType() will return non-null but that
// shouldn't happen until the user calls next().
// _state         = pos._state;
// _value_type    = pos._value_type;
// _value_is_null = pos._value_is_null;
// _value_is_true = pos._value_is_true;
// _is_in_struct = false;
}