protected void writeIndexCommandHeader(IndexCommand command) throws IOException {
writeIndexCommandHeader(
command.getValueType(),
command.getEntityType(),
needsLong(command.getEntityId()),
command.startNodeNeedsLong(),
command.endNodeNeedsLong(),
command.getIndexNameId(),
command.getKeyId());
}
public void writeToFile(IndexCommand command) throws IOException {
/* c: commandType
* e: entityType
* n: indexNameId
* k: keyId
* i: entityId
* v: value type
* u: value
* x: 0=entityId needs 4b, 1=entityId needs 8b
* y: 0=startNode needs 4b, 1=startNode needs 8b
* z: 0=endNode needs 4b, 1=endNode needs 8b
*
* [cccv,vvex][yznn,nnnn][kkkk,kkkk]
* [iiii,iiii] x 4 or 8
* (either string value)
* [llll,llll][llll,llll][llll,llll][string chars...]
* (numeric value)
* [uuuu,uuuu] x 2-8 (depending on value type)
*/
writeIndexCommandHeader(command);
putIntOrLong(command.getEntityId());
// Value
Object value = command.getValue();
switch (command.getValueType()) {
case IndexCommand.VALUE_TYPE_STRING:
write3bLengthAndString(channel, value.toString());
break;
case IndexCommand.VALUE_TYPE_SHORT:
channel.putShort(((Number) value).shortValue());
break;
case IndexCommand.VALUE_TYPE_INT:
channel.putInt(((Number) value).intValue());
break;
case IndexCommand.VALUE_TYPE_LONG:
channel.putLong(((Number) value).longValue());
break;
case IndexCommand.VALUE_TYPE_FLOAT:
channel.putFloat(((Number) value).floatValue());
break;
case IndexCommand.VALUE_TYPE_DOUBLE:
channel.putDouble(((Number) value).doubleValue());
break;
case IndexCommand.VALUE_TYPE_NULL:
break;
default:
throw new RuntimeException("Unknown value type " + command.getValueType());
}
}