@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; }