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org.cass.importer.ASNImport Maven / Gradle / Ivy
package org.cass.importer;
import com.eduworks.ec.task.Task;
import js.FileReader;
import org.cass.competency.EcAlignment;
import org.cass.competency.EcCompetency;
import org.cass.competency.EcFramework;
import org.cassproject.ebac.identity.EcIdentity;
import org.cassproject.ebac.repository.EcRepository;
import org.stjs.javascript.*;
import org.stjs.javascript.functions.Callback0;
import org.stjs.javascript.functions.Callback1;
import org.stjs.javascript.functions.Callback2;
/**
* Import methods to handle an ASN JSON file containing a framework,
* competencies and relationships, and store them in a CASS instance
*
* @author [email protected]
* @author [email protected]
* @module org.cassproject
* @class ASNImport
* @static
* @extends Importer
*/
public class ASNImport extends Importer {
private final static int INCREMENTAL_STEP = 5;
static Object jsonFramework;
static String frameworkUrl;
static Map jsonCompetencies;
static int competencyCount;
static int relationCount;
static EcFramework importedFramework;
static Map competencies;
static Object progressObject;
static int savedCompetencies = 0;
static int savedRelations = 0;
/**
* Recursive function that looks through the file and saves each
* competency object in a map for use during importing. It also counts
* the number of competencies and relationships that it finds
*
* @param {Object} obj
* The current JSON object we're examining for comepetencies and reationships
* @param {String} key
* The ASN identifier of the current object
* @memberOf ASNImport
* @method asnJsonPrime
* @private
* @static
*/
private static void asnJsonPrime(Object obj, String key) {
Object value = JSObjectAdapter.$get(obj, key);
if (isObject(value)) {
if (JSObjectAdapter.$get(value, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type") != null) {
Object stringVal = JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(value, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type"), "0"), "value");
if (stringVal == "http://purl.org/ASN/schema/core/Statement") {
jsonCompetencies.$put(key, value);
competencyCount++;
Array children = (Array) JSObjectAdapter.$get(value, "http://purl.org/gem/qualifiers/hasChild");
if (children != null)
for (int j = 0; j < children.$length(); j++) {
relationCount++;
asnJsonPrime(obj, (String) JSObjectAdapter.$get(children.$get(j), "value"));
}
}
}
}
}
/**
* Does the actual legwork of looking for competencies and relationships.
*
* This function finds the framework information, and pulls out the competency
* objects array to be scanned by asnJsonPrime
*
* @param {Object} obj
* ASN JSON Object from file that contains framework information and competencies/relationships
* @memberOf ASNImport
* @method lookThroughSource
* @private
* @static
*/
private static void lookThroughSource(Object obj) {
competencyCount = 0;
relationCount = 0;
for (String key : JSObjectAdapter.$properties(obj)) {
Object value = JSObjectAdapter.$get(obj, key);
if (isObject(value)) {
if (JSObjectAdapter.$get(value, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type") != null) {
Object stringVal = JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(value, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type"), "0"), "value");
if (stringVal == "http://purl.org/ASN/schema/core/StandardDocument") {
jsonFramework = value;
frameworkUrl = key;
Array children = (Array) JSObjectAdapter.$get(value, "http://purl.org/gem/qualifiers/hasChild");
if (children != null)
for (int j = 0; j < children.$length(); j++) {
asnJsonPrime(obj, (String) JSObjectAdapter.$get(children.$get(j), "value"));
}
}
}
}
}
}
/**
* Analyzes an ASN File for competencies and relationships.
*
* This should be called before import, the success callback returns an object
* indicating the number of competencies and relationships found.
*
* @param {Object} file
* ASN JSON file
* @param {Callback1} success
* Callback triggered on successful analysis of file
* @param {Callback1} [failure]
* Callback triggered if there is an error during analysis of the file
* @memberOf ASNImport
* @method analyzeFile
* @static
*/
public static void analyzeFile(Object file, final Callback1 success, final Callback1 failure) {
if (file == null) {
failure.$invoke("No file to analyze");
return;
}
if (JSObjectAdapter.$get(file, "name") == null) {
failure.$invoke("Invalid file");
return;
} else if (!((String) JSObjectAdapter.$get(file, "name")).endsWith(".json")) {
failure.$invoke("Invalid file type");
return;
}
FileReader reader = new FileReader();
reader.onload = new Callback1() {
@Override
public void $invoke(Object e) {
String result = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(e, "target"), "result");
Object jsonObj = Global.JSON.parse(result);
jsonCompetencies = JSCollections.$map();
jsonFramework = null;
frameworkUrl = "";
lookThroughSource(jsonObj);
if (jsonFramework == null) {
failure.$invoke("Could not find StandardDocument.");
} else {
success.$invoke(jsonCompetencies);
}
}
};
reader.readAsText(file, "UTF-8");
}
/**
* Method to import the competencies from an ASN JSON file,
* should be called after analyzing the file
*
* @param {String} serverUrl
* URL Prefix for the competencies to be imported
* @param {EcIdentity} owner
* EcIdentity that will own the new competencies
* @param {boolean} createFramework
* Flag to create a framework and include the competencies and relationships created
* @param {Callback2, EcFramework>} success
* Callback triggered after the competencies (and framework?) are created
* @param {Callback1} failure
* Callback triggered if an error occurs while creating the competencies
* @param {Callback1} [incremental]
* Callback triggered incrementally during the creation of competencies to indicate progress,
* returns an object indicating the number of competencies (and relationships?) created so far
* @memberOf ASNImport
* @method importCompetencies
* @static
*/
public static void importCompetencies(final String serverUrl, final EcIdentity owner, final boolean createFramework,
final Callback2, EcFramework> success, final Callback1 failure,
final Callback1 incremental, final EcRepository repo) {
competencies = JSCollections.$map();
if (createFramework) {
importedFramework = new EcFramework();
importedFramework.competency = JSCollections.$array();
importedFramework.relation = JSCollections.$array();
} else {
importedFramework = null;
}
progressObject = null;
createCompetencies(serverUrl, owner, new Callback0() {
@Override
public void $invoke() {
createRelationships(serverUrl, owner, jsonFramework, null, new Callback0() {
@Override
public void $invoke() {
if (createFramework) {
createFramework(serverUrl, owner, success, failure, repo);
} else {
Array compList = JSCollections.$array();
for (String key : competencies) {
compList.push(competencies.$get(key));
}
if (success != null)
success.$invoke(compList, null);
}
}
}, failure, incremental, repo);
}
}, failure, incremental, repo);
}
/**
* Handles creating the competencies found during analysis, iterates through the
* competency ASN objects saved and creates them in the CASS repository at the URL given.
*
* @param {String} serverUrl
* URL Prefix for the competencies to be imported
* @param {EcIdentity} owner
* EcIdentity that will own the new competencies
* @param {Callback0} success
* Callback triggered after the competencies are created
* @param {Callback1} failure
* Callback triggered if an error occurs while creating the competencies
* @param {Callback1} [incremental]
* Callback triggered incrementally during the creation of competencies to indicate progress
* @memberOf ASNImport
* @method createCompetencies
* @private
* @static
*/
private static void createCompetencies(String serverUrl, EcIdentity owner, final Callback0 success,
final Callback1 failure, final Callback1 incremental, EcRepository repo) {
savedCompetencies = 0;
for (String key : jsonCompetencies) {
EcCompetency comp = new EcCompetency();
Object jsonComp = jsonCompetencies.$get(key);
if (JSObjectAdapter.$get(jsonComp, "http://purl.org/dc/elements/1.1/title") == null)
comp.name = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(jsonComp, "http://purl.org/dc/terms/description"), "0"), "value");
else
comp.name = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(jsonComp, "http://purl.org/dc/elements/1.1/title"), "0"), "value");
if (JSObjectAdapter.$get(jsonComp, "http://purl.org/dc/terms/description") != null)
comp.description = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(jsonComp, "http://purl.org/dc/terms/description"), "0"), "value");
comp.id = key;
if (comp.id == null) {
if (repo == null || repo.selectedServer.indexOf(serverUrl) != -1)
comp.generateId(serverUrl);
else
comp.generateShortId(serverUrl);
}
if (owner != null)
comp.addOwner(owner.ppk.toPk());
if (importedFramework != null)
importedFramework.addCompetency(comp.shortId());
competencies.$put(key, comp);
saveCompetency(success, failure, incremental, comp, repo);
}
}
private static void saveCompetency(final Callback0 success, final Callback1 failure, final Callback1 incremental, final EcCompetency comp, final EcRepository repo) {
Task.asyncImmediate(new Callback1() {
@Override
public void $invoke(Object o) {
final Callback0 keepGoing = (Callback0) o;
comp.save(new Callback1() {
@Override
public void $invoke(String p1) {
savedCompetencies++;
if (savedCompetencies % INCREMENTAL_STEP == 0) {
if (progressObject == null)
progressObject = new Object();
JSObjectAdapter.$put(progressObject, "competencies", savedCompetencies);
incremental.$invoke(progressObject);
}
if (savedCompetencies == competencyCount) {
if (progressObject == null)
progressObject = new Object();
JSObjectAdapter.$put(progressObject, "competencies", savedCompetencies);
incremental.$invoke(progressObject);
success.$invoke();
}
keepGoing.$invoke();
}
}, new Callback1() {
@Override
public void $invoke(String p1) {
failure.$invoke("Failed to save competency");
keepGoing.$invoke();
}
}, repo);
}
});
}
/**
* Handles creating the relationships from the file analyzed earlier.
* Recursively travels through looking for the hasChild field and creates
* relationships based off of that.
*
* @param {String} serverUrl
* URL Prefix for the relationships to be imported
* @param {EcIdentity} owner
* EcIdentity that will own the new relationships
* @param {Object} node
* @param {String} nodeId
* @param {Callback0} success
* Callback triggered after the relationships are created
* @param {Callback1} failure
* Callback triggered if an error occurs while creating the relationships
* @param {Callback1} incremental
* Callback triggered incrementally during the creation of relationships to indicate progress
* @memberOf ASNImport
* @method createRelationships
* @private
* @static
*/
private static void createRelationships(String serverUrl, EcIdentity owner, Object node, String nodeId,
final Callback0 success, final Callback1 failure, final Callback1 incremental, EcRepository repo) {
savedRelations = 0;
if (relationCount == 0) {
success.$invoke();
}
Array children = (Array) JSObjectAdapter.$get(node, "http://purl.org/gem/qualifiers/hasChild");
if (children != null)
for (int j = 0; j < children.$length(); j++) {
if (nodeId != null) {
EcAlignment relation = new EcAlignment();
relation.target = competencies.$get(nodeId).id;
relation.source = competencies.$get((String) JSObjectAdapter.$get(children.$get(j), "value")).id;
relation.relationType = "narrows";
relation.name = "";
relation.description = "";
if (repo == null || repo.selectedServer.indexOf(serverUrl) != -1)
relation.generateId(serverUrl);
else
relation.generateShortId(serverUrl);
if (owner != null)
relation.addOwner(owner.ppk.toPk());
if (importedFramework != null)
importedFramework.addRelation(relation.shortId());
saveRelation(success, failure, incremental, relation,repo);
}
createRelationships(serverUrl, owner,
jsonCompetencies.$get((String) JSObjectAdapter.$get(children.$get(j), "value")),
(String) JSObjectAdapter.$get(children.$get(j), "value"),
success, failure, incremental, repo
);
}
}
private static void saveRelation(final Callback0 success, final Callback1 failure, final Callback1 incremental, final EcAlignment relation, final EcRepository repo) {
Task.asyncImmediate(new Callback1() {
@Override
public void $invoke(Object o) {
final Callback0 keepGoing = (Callback0) o;
relation.save(new Callback1() {
@Override
public void $invoke(String p1) {
savedRelations++;
if (savedRelations % INCREMENTAL_STEP == 0) {
if (progressObject == null)
progressObject = new Object();
JSObjectAdapter.$put(progressObject, "relations", savedRelations);
incremental.$invoke(progressObject);
}
if (savedRelations == relationCount) {
success.$invoke();
}
keepGoing.$invoke();
}
}, new Callback1() {
@Override
public void $invoke(String p1) {
failure.$invoke("Failed to save Relationship");
keepGoing.$invoke();
}
}, repo);
}
});
}
/**
* Handles creating the framework if the createFramework flag was set
*
* @param {String} serverUrl
* URL Prefix for the framework to be imported
* @param {EcIdentity} owner
* EcIdentity that will own the new framework
* @param {Callback2, EcFramework>} success
* Callback triggered after the framework is created
* @param {Callback1} failure
* Callback triggered if there is an error during the creation of framework
* @meberOf ASNImport
* @method createFramework
* @private
* @static
*/
private static void createFramework(String serverUrl, EcIdentity owner, final Callback2, EcFramework> success, final Callback1 failure, EcRepository repo) {
importedFramework.name = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(jsonFramework, "http://purl.org/dc/elements/1.1/title"), "0"), "value");
importedFramework.description = (String) JSObjectAdapter.$get(JSObjectAdapter.$get(JSObjectAdapter.$get(jsonFramework, "http://purl.org/dc/terms/description"), "0"), "value");
importedFramework.id = frameworkUrl;
if (importedFramework.id == null) {
if (repo == null || repo.selectedServer.indexOf(serverUrl) != -1)
importedFramework.generateId(serverUrl);
else
importedFramework.generateShortId(serverUrl);
}
if (owner != null)
importedFramework.addOwner(owner.ppk.toPk());
importedFramework.save(new Callback1() {
@Override
public void $invoke(String p1) {
Array compList = JSCollections.$array();
for (String key : competencies) {
compList.push(competencies.$get(key));
}
if (success != null)
success.$invoke(compList, importedFramework);
}
}, new Callback1() {
@Override
public void $invoke(String p1) {
failure.$invoke("Failed to save framework");
}
}, repo);
}
}
