public String getFirstPairedConnectionType() {
ConnectedEntityRef pairedConnection = getFirstPairedConnection();
if (pairedConnection != null) {
return pairedConnection.getConnectionType();
}
return null;
}
public UUID getFirstPairedConnectedEntityId() {
ConnectedEntityRef pairedConnection = getFirstPairedConnection();
if (pairedConnection != null) {
return pairedConnection.getUuid();
}
return null;
}
public static UUID getIndexId(
EntityRef connectingEntity,
String connectionType,
String connectedEntityType,
ConnectedEntityRef... pairedConnections) {
UUID uuid = null;
try {
if (connectionsNull(pairedConnections)
&& ((connectionType == null) && (connectedEntityType == null))) {
return connectingEntity.getUuid();
}
ByteArrayOutputStream byteStream =
new ByteArrayOutputStream(16 + (32 * pairedConnections.length));
byteStream.write(uuidToBytesNullOk(connectingEntity.getUuid()));
for (ConnectedEntityRef connection : pairedConnections) {
String type = connection.getConnectionType();
UUID id = connection.getUuid();
byteStream.write(ascii(StringUtils.lowerCase(type)));
byteStream.write(uuidToBytesNullOk(id));
}
if (connectionType == null) {
connectionType = NULL_ENTITY_TYPE;
}
if (connectedEntityType == null) {
connectedEntityType = NULL_ENTITY_TYPE;
}
byteStream.write(ascii(StringUtils.lowerCase(connectionType)));
byteStream.write(ascii(StringUtils.lowerCase(connectedEntityType)));
byte[] raw_id = byteStream.toByteArray();
logger.info("raw connection index id: " + Hex.encodeHexString(raw_id));
uuid = UUID.nameUUIDFromBytes(raw_id);
logger.info("connection index uuid: " + uuid);
} catch (IOException e) {
logger.error("Unable to create connection index UUID", e);
}
return uuid;
}
public static boolean connectionsNull(ConnectedEntityRef... pairedConnections) {
if ((pairedConnections == null) || (pairedConnections.length == 0)) {
return true;
}
for (ConnectedEntityRef pairedConnection : pairedConnections) {
if (pairedConnection == null
|| pairedConnection.getUuid() == null
|| pairedConnection.getUuid().equals(NULL_ID)) {
return true;
}
}
return false;
}
/** @return */
@Override
public String getConnectionType() {
if (connectedEntity == null) {
return null;
}
return connectedEntity.getConnectionType();
}
/** @return */
public UUID getConnectedEntityId() {
return connectedEntity.getUuid();
}
/** @return */
public String getConnectedEntityType() {
if (connectedEntity == null) {
return null;
}
return connectedEntity.getType();
}