/** Still used in getNCubesFromResource */
private static Object[] getJsonObjectFromResource(String name) throws IOException {
JsonReader reader = null;
try {
URL url = NCubeManager.class.getResource("/" + name);
File jsonFile = new File(url.getFile());
InputStream in = new BufferedInputStream(new FileInputStream(jsonFile));
reader = new JsonReader(in, true);
return (Object[]) reader.readObject();
} finally {
IOUtilities.close(reader);
}
}
/** {@inheritDoc} */
@Override
public BasicOperator deserialize(final JSONObject serializedOperator) throws JSONException {
/*
* instanciate the subgraphcontainer formatter, which is used for
* subgraph execution
*/
final SubgraphContainerFormatter serializer =
new SubgraphContainerFormatter(this.dataset, this.operatorCreator, this.application);
final JSONObject _serializedOperator = serializedOperator.getJSONObject("subgraph");
final Root r = serializer.deserialize(_serializedOperator);
/*
* deserialize the key of the subgraph container
*/
final String subgraphKey = (String) serializedOperator.get("key");
Object obj = null;
try {
obj = JsonReader.jsonToJava(subgraphKey);
} catch (final IOException e) {
e.printStackTrace();
}
/*
* read out the subgraphType, otherwise set default
*/
String subgraphType = (String) serializedOperator.get("type");
if (subgraphType == null) {
subgraphType = SubgraphContainer.class.getName();
}
/*
* create the subgraph container with the given key and executer
*/
return this.invoke(subgraphType, r, obj, this.executer);
}
public static Map<String, Object> getSystemParams() {
final ConcurrentMap<String, Object> params = systemParams;
if (params != null) {
return params;
}
synchronized (NCubeManager.class) {
if (systemParams == null) {
String jsonParams = SystemUtilities.getExternalVariable(NCUBE_PARAMS);
systemParams = new ConcurrentHashMap<>();
if (StringUtilities.hasContent(jsonParams)) {
try {
systemParams = new ConcurrentHashMap<>(JsonReader.jsonToMaps(jsonParams));
} catch (Exception e) {
LOG.warn("Parsing of NCUBE_PARAMS failed. " + jsonParams);
}
}
}
}
return systemParams;
}