/**
* Copyright 2011-2012 Adrian Stabiszewski, as@nfctools.org
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.nfctools.ndef.wkt.encoder;
import org.nfctools.ndef.NdefEncoderException;
import org.nfctools.ndef.NdefMessageEncoder;
import org.nfctools.ndef.wkt.WellKnownRecordPayloadEncoder;
import org.nfctools.ndef.wkt.records.GcActionRecord;
import org.nfctools.ndef.wkt.records.WellKnownRecord;
public class GcActionRecordEncoder implements WellKnownRecordPayloadEncoder {
@Override
public byte[] encodePayload(WellKnownRecord wellKnownRecord, NdefMessageEncoder messageEncoder) {
GcActionRecord actionRecord = (GcActionRecord)wellKnownRecord;
byte[] payload = null;
if (actionRecord.hasAction() && actionRecord.hasActionRecord()) {
throw new NdefEncoderException("Expected action or action record, not both.", wellKnownRecord);
}
if (actionRecord.hasAction()) {
payload = new byte[2];
payload[0] = GcActionRecord.NUMERIC_CODE;
payload[1] = (byte)actionRecord.getAction().getValue();
}
else if (actionRecord.hasActionRecord()) {
byte[] subPayload = messageEncoder.encodeSingle(actionRecord.getActionRecord());
payload = new byte[subPayload.length + 1];
payload[0] = 0;
System.arraycopy(subPayload, 0, payload, 1, subPayload.length);
} else {
throw new NdefEncoderException("Expected action or action record.", wellKnownRecord);
}
return payload;
}
}