@Override
public StatementsResultLRSResponse saveStatements(List<Statement> statements) {
StatementsResultLRSResponse lrsResponse = new StatementsResultLRSResponse();
if (statements.isEmpty()) {
lrsResponse.setSuccess(true);
return lrsResponse;
}
ArrayNode rootNode = Mapper.getInstance().createArrayNode();
for (Statement statement : statements) {
rootNode.add(statement.toJSONNode(getVersion()));
}
lrsResponse.setRequest(new HTTPRequest());
lrsResponse.getRequest().setResource("statements");
lrsResponse.getRequest().setMethod(HttpMethods.POST);
lrsResponse.getRequest().setContentType("application/json");
try {
lrsResponse
.getRequest()
.setContent(Mapper.getWriter(this.usePrettyJSON()).writeValueAsBytes(rootNode));
} catch (JsonProcessingException ex) {
lrsResponse.setErrMsg("Exception: " + ex.toString());
return lrsResponse;
}
HTTPResponse response = makeSyncRequest(lrsResponse.getRequest());
int status = response.getStatus();
lrsResponse.setResponse(response);
if (status == 200) {
lrsResponse.setSuccess(true);
lrsResponse.setContent(new StatementsResult());
try {
Iterator it =
Mapper.getInstance().readValue(response.getContent(), ArrayNode.class).elements();
for (int i = 0; it.hasNext(); ++i) {
lrsResponse.getContent().getStatements().add(statements.get(i));
lrsResponse
.getContent()
.getStatements()
.get(i)
.setId(UUID.fromString(((JsonNode) it.next()).textValue()));
}
} catch (Exception ex) {
lrsResponse.setErrMsg("Exception: " + ex.toString());
lrsResponse.setSuccess(false);
}
} else {
lrsResponse.setSuccess(false);
}
return lrsResponse;
}
@Override
public StatementsResultLRSResponse queryStatements(StatementsQueryInterface query) {
// Setup empty query object if null was passed in
if (query == null) {
query =
(this.getVersion() == TCAPIVersion.V095)
? new com.rusticisoftware.tincan.v095.StatementsQuery()
: new StatementsQuery();
}
// Choke if the query parameters don't match the LRS version
if (this.getVersion() != query.getVersion()) {
throw new IncompatibleTCAPIVersion(
"Attempted to issue "
+ this.getVersion()
+ " query using a "
+ query.getVersion()
+ " set of query parameters.");
}
StatementsResultLRSResponse lrsResponse = new StatementsResultLRSResponse();
lrsResponse.setRequest(new HTTPRequest());
lrsResponse.getRequest().setMethod(HttpMethods.GET);
lrsResponse.getRequest().setResource("statements");
try {
lrsResponse.getRequest().setQueryParams(query.toParameterMap());
} catch (IOException ex) {
lrsResponse.setErrMsg("Exception: " + ex.toString());
return lrsResponse;
}
HTTPResponse response = makeSyncRequest(lrsResponse.getRequest());
lrsResponse.setResponse(response);
if (response.getStatus() == 200) {
lrsResponse.setSuccess(true);
try {
lrsResponse.setContent(new StatementsResult(new StringOfJSON(response.getContent())));
} catch (Exception ex) {
lrsResponse.setErrMsg("Exception: " + ex.toString());
lrsResponse.setSuccess(false);
}
} else {
lrsResponse.setSuccess(false);
}
return lrsResponse;
}
@Override
public StatementsResultLRSResponse moreStatements(String moreURL) {
if (moreURL == null) {
return null;
}
// moreURL is relative to the endpoint's server root
URL endpoint = this.getEndpoint();
String url =
endpoint.getProtocol()
+ "://"
+ endpoint.getHost()
+ (endpoint.getPort() == -1 ? "" : ":" + endpoint.getPort())
+ moreURL;
HTTPRequest request = new HTTPRequest();
request.setResource(url);
request.setMethod(HttpMethods.GET);
HTTPResponse response = makeSyncRequest(request);
StatementsResultLRSResponse lrsResponse = new StatementsResultLRSResponse(request, response);
if (response.getStatus() == 200) {
lrsResponse.setSuccess(true);
try {
lrsResponse.setContent(new StatementsResult(new StringOfJSON(response.getContent())));
} catch (Exception ex) {
lrsResponse.setErrMsg("Exception: " + ex.toString());
lrsResponse.setSuccess(false);
}
} else {
lrsResponse.setSuccess(false);
}
return lrsResponse;
}