@Override
public List<String> saveStatements(List<Statement> statements) throws Exception {
List<String> statementIds = new ArrayList<String>();
if (statements.size() == 0) {
return statementIds;
}
ArrayNode rootNode = Mapper.getInstance().createArrayNode();
for (Statement statement : statements) {
rootNode.add(statement.toJSONNode(version));
}
HTTPRequest request = new HTTPRequest();
request.setRequestContent(
new ByteArrayBuffer(
Mapper.getWriter(this.usePrettyJSON()).writeValueAsString(rootNode), "UTF-8"));
request.setMethod(HttpMethods.POST);
request.setURL(this.getEndpoint() + "statements");
HTTPResponse response = this.sendRequest(request);
int status = response.getStatus();
if (status == 200) {
String content = request.getResponseContent();
Iterator it = Mapper.getInstance().readValue(content, ArrayNode.class).elements();
while (it.hasNext()) {
statementIds.add(((JsonNode) it.next()).textValue());
}
return statementIds;
}
throw new UnexpectedHTTPResponse(response);
}
@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;
}