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package org.bigml.binding.resources;
import org.bigml.binding.BigMLClient;
import org.bigml.binding.utils.CacheManager;
import org.bigml.binding.utils.Utils;
import org.json.simple.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Entry point to create, retrieve, list, update, and delete models.
*
* Full API documentation on the API can be found from BigML at:
* https://bigml.com/api/models
*
*
*/
public class Model extends AbstractModelResource {
// Logging
Logger logger = LoggerFactory.getLogger(Model.class);
/**
* Constructor
*
* @param bigmlClient the client with connection to BigML
* @param apiUser API user
* @param apiKey API key
* @param project project id
* @param organization organization id
* @param cacheManager cache manager
*/
public Model(final BigMLClient bigmlClient,
final String apiUser, final String apiKey,
final String project, final String organization,
final CacheManager cacheManager) {
super.init(bigmlClient, apiUser, apiKey, project, organization,
cacheManager, MODEL_RE, MODEL_PATH);
}
/**
* Creates a new model.
*
* POST /andromeda/model?username=$BIGML_USERNAME&api_key=$BIGML_API_KEY&
* HTTP/1.1 Host: bigml.io Content-Type: application/json
*
* @param resourceId
* a unique identifier in the form [dataset|cluster]/id
* where id is a string of 24 alpha-numeric chars for the
* remote resource to attach the model.
* @param args
* set of parameters for the new model. Optional
* @param waitTime
* time (milliseconds) to wait for next check of FINISHED status
* for source before to start to create the model. Optional
* @param retries
* number of times to try the operation. Optional
*
*/
public JSONObject create(final String resourceId, JSONObject args,
Integer waitTime, Integer retries) {
if (resourceId == null || resourceId.length() == 0 ) {
logger.info("Wrong resource id. Id cannot be null");
return null;
}
try {
if( resourceId.matches(DATASET_RE) ) {
String[] datasetsIds = { resourceId };
JSONObject requestObject = createFromDatasets(datasetsIds, args,
waitTime, retries, null);
return createResource(resourceUrl,
requestObject.toJSONString());
} else if( resourceId.matches(CLUSTER_RE) ) {
JSONObject requestObject = new JSONObject();
// If the original resource is a Cluster
waitForResource(resourceId, "clusterIsReady", waitTime, retries);
if (args != null) {
requestObject = args;
}
if( !requestObject.containsKey("centroid") ) {
try {
JSONObject cluster = this.bigmlClient.getCluster(resourceId);
JSONObject clusterModelsIds = (JSONObject) Utils.
getJSONObject(cluster, "object.cluster_models", null);
Object centroidId = clusterModelsIds.keySet().toArray()[0];
args.put("centroid", centroidId);
} catch (Exception e) {
logger.error("Failed to generate the model." +
"A centroid id is needed in the args " +
"argument to generate a model from " +
"a cluster.", e);
return null;
}
}
requestObject.put("cluster", resourceId);
return createResource(resourceUrl,
requestObject.toJSONString());
}
} catch (Throwable e) {
logger.error("Failed to generate the model.", e);
return null;
}
return null;
}
/**
* Retrieves a model.
*
* GET /andromeda/model/id?username=$BIGML_USERNAME&api_key=$BIGML_API_KEY&
* Host: bigml.io
*
* @param modelId
* a unique identifier in the form model/id where id is a string
* of 24 alpha-numeric chars.
* @param apiUser
* API user
* @param apiKey
* API key
*
* @return a JSONObject for the model
*/
public JSONObject get(final String modelId, final String apiUser,
final String apiKey) {
if (modelId == null || modelId.length() == 0
|| !(modelId.matches(MODEL_RE))) {
logger.info("Wrong model id");
return null;
}
return getResource(BIGML_URL + modelId, null, apiUser, apiKey);
}
/**
* Retrieves a model.
*
* GET /andromeda/model/id?username=$BIGML_USERNAME&api_key=$BIGML_API_KEY&
* Host: bigml.io
*
* @param model
* a model JSONObject
* @param apiUser
* API user
* @param apiKey
* API key
*
* @return a JSONObject for the model
*/
public JSONObject get(final JSONObject model, final String apiUser,
final String apiKey) {
String resourceId = (String) model.get("resource");
return get(resourceId, apiUser, apiKey);
}
/**
* Retrieves a model.
*
* GET /andromeda/model/id?username=$BIGML_USERNAME&api_key=$BIGML_API_KEY&
* Host: bigml.io
*
* @param modelId
* a unique identifier in the form model/id where id is a string
* of 24 alpha-numeric chars.
* @param queryString
* query for filtering.
* @param apiUser
* API user
* @param apiKey
* API key
*
* @return a JSONObject for the model
*/
public JSONObject get(final String modelId, final String queryString,
final String apiUser, final String apiKey) {
if (modelId == null || modelId.length() == 0
|| !(modelId.matches(MODEL_RE))) {
logger.info("Wrong model id");
return null;
}
return getResource(BIGML_URL + modelId, queryString, apiUser, apiKey);
}
/**
* Retrieves a model.
*
* GET /andromeda/model/id?username=$BIGML_USERNAME&api_key=$BIGML_API_KEY&
* Host: bigml.io
*
* @param model
* a model JSONObject
* @param queryString
* query for filtering
* @param apiUser
* API user
* @param apiKey
* API key
*
* @return a JSONObject for the model
*/
public JSONObject get(final JSONObject model, final String queryString,
final String apiUser, final String apiKey) {
String resourceId = (String) model.get("resource");
return get(resourceId, queryString, apiUser, apiKey);
}
}
