List of usage examples for com.fasterxml.jackson.core JsonToken START_OBJECT
JsonToken START_OBJECT
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From source file:org.jmxtrans.embedded.output.CopperEggWriter.java
/** * read_config()// w w w.j a v a 2 s . c o m * The copperegg_config.json file contains a specification for the metric groups and dashboards to be created / or updated. * Mandatory */ public void read_config(InputStream in) throws Exception { JsonFactory f = new MappingJsonFactory(); JsonParser jp = f.createJsonParser(in); JsonToken current; current = jp.nextToken(); if (current != JsonToken.START_OBJECT) { logger.warn("read_config: Error: START_OBJECT not found : quiting."); return; } current = jp.nextToken(); String fieldName = jp.getCurrentName(); current = jp.nextToken(); if (fieldName.equals("config")) { if (current != JsonToken.START_OBJECT) { logger.warn("read_config: Error: START_OBJECT not found after config : quiting."); return; } current = jp.nextToken(); String fieldName2 = jp.getCurrentName(); if (fieldName2.equals("metric_groups")) { current = jp.nextToken(); if (current != JsonToken.START_ARRAY) { logger.warn("read_config: Error: START_ARRAY not found after metric_groups : quiting."); return; } current = jp.nextToken(); while (current != JsonToken.END_ARRAY) { if (current != JsonToken.START_OBJECT) { logger.warn( "read_config: Error: START_OBJECT not found after metric_groups START_ARRAY : quiting."); return; } current = jp.nextToken(); JsonNode node1 = jp.readValueAsTree(); String node1string = write_tostring(node1); metricgroupMap.put(node1.get("name").asText(), node1string); current = jp.nextToken(); } current = jp.nextToken(); String fieldName3 = jp.getCurrentName(); if (fieldName3.equals("dashboards")) { current = jp.nextToken(); if (current != JsonToken.START_ARRAY) { logger.warn("read_config: Error: START_ARRAY not found after dashboards : quiting."); return; } current = jp.nextToken(); while (current != JsonToken.END_ARRAY) { if (current != JsonToken.START_OBJECT) { logger.warn( "read_config: Error: START_OBJECT not found after dashboards START_ARRAY : quiting."); return; } current = jp.nextToken(); JsonNode node = jp.readValueAsTree(); String nodestring = write_tostring(node); dashMap.put(node.get("name").asText(), nodestring); current = jp.nextToken(); } if (jp.nextToken() != JsonToken.END_OBJECT) { logger.warn("read_config: Error: END_OBJECT expected, not found (1): quiting."); return; } if (jp.nextToken() != JsonToken.END_OBJECT) { logger.warn("read_config: Error: END_OBJECT expected, not found (2): quiting."); return; } } else { logger.warn("read_config: Error: Expected dashboards : quiting."); return; } } else { logger.warn("read_config: Error: Expected metric_groups : quiting."); return; } } }
From source file:com.adobe.communities.ugc.migration.importer.UGCImportHelper.java
protected static void importTranslation(final JsonParser jsonParser, final Resource post) throws IOException { JsonToken token = jsonParser.getCurrentToken(); final Map<String, Object> properties = new HashMap<String, Object>(); if (token != JsonToken.START_OBJECT) { throw new IOException("expected a start object token, got " + token.asString()); }/*from w ww .j av a 2 s. co m*/ properties.put("jcr:primaryType", "social:asiResource"); Resource translationFolder = null; token = jsonParser.nextToken(); while (token == JsonToken.FIELD_NAME) { token = jsonParser.nextToken(); //advance to the field value if (jsonParser.getCurrentName().equals((ContentTypeDefinitions.LABEL_TRANSLATIONS))) { if (null == translationFolder) { // begin by creating the translation folder resource translationFolder = post.getResourceResolver().create(post, "translation", properties); } //now check to see if any translations exist if (token == JsonToken.START_OBJECT) { token = jsonParser.nextToken(); if (token == JsonToken.FIELD_NAME) { while (token == JsonToken.FIELD_NAME) { // each new field represents another translation final Map<String, Object> translationProperties = new HashMap<String, Object>(); translationProperties.put("jcr:primaryType", "social:asiResource"); String languageLabel = jsonParser.getCurrentName(); token = jsonParser.nextToken(); if (token != JsonToken.START_OBJECT) { throw new IOException("expected a start object token for translation item, got " + token.asString()); } token = jsonParser.nextToken(); while (token != JsonToken.END_OBJECT) { jsonParser.nextToken(); //get next field value if (jsonParser.getCurrentName() .equals(ContentTypeDefinitions.LABEL_TIMESTAMP_FIELDS)) { jsonParser.nextToken(); // advance to first field name while (!jsonParser.getCurrentToken().equals(JsonToken.END_ARRAY)) { final String timestampLabel = jsonParser.getValueAsString(); if (translationProperties.containsKey(timestampLabel)) { final Calendar calendar = new GregorianCalendar(); calendar.setTimeInMillis(Long .parseLong((String) translationProperties.get(timestampLabel))); translationProperties.put(timestampLabel, calendar.getTime()); } jsonParser.nextToken(); } } else if (jsonParser.getCurrentName() .equals(ContentTypeDefinitions.LABEL_SUBNODES)) { jsonParser.skipChildren(); } else { translationProperties.put(jsonParser.getCurrentName(), URLDecoder.decode(jsonParser.getValueAsString(), "UTF-8")); } token = jsonParser.nextToken(); //get next field label } // add the language-specific translation under the translation folder resource Resource translation = post.getResourceResolver().create(post.getChild("translation"), languageLabel, translationProperties); if (null == translation) { throw new IOException("translation not actually imported"); } } jsonParser.nextToken(); //skip END_OBJECT token for translation } else if (token == JsonToken.END_OBJECT) { // no actual translation to import, so we're done here jsonParser.nextToken(); } } else { throw new IOException( "expected translations to be contained in an object, saw instead: " + token.asString()); } } else if (jsonParser.getCurrentName().equals("mtlanguage") || jsonParser.getCurrentName().equals("jcr:createdBy")) { properties.put(jsonParser.getCurrentName(), jsonParser.getValueAsString()); } else if (jsonParser.getCurrentName().equals("jcr:created")) { final Calendar calendar = new GregorianCalendar(); calendar.setTimeInMillis(jsonParser.getLongValue()); properties.put("jcr:created", calendar.getTime()); } token = jsonParser.nextToken(); } if (null == translationFolder && properties.containsKey("mtlanguage")) { // it's possible that no translations existed, so we need to make sure the translation resource (which // includes the original post's detected language) is created anyway post.getResourceResolver().create(post, "translation", properties); } }
From source file:org.jmxtrans.embedded.output.CopperEggWriter.java
public String groupFind(String findName, String findIndex, Integer ExpectInt) throws Exception { JsonFactory f = new MappingJsonFactory(); JsonParser jp = f.createJsonParser(findIndex); int count = 0; int foundit = 0; String Result = null;/*from w w w . j a v a2s . c o m*/ JsonToken current = jp.nextToken(); if (current != JsonToken.START_ARRAY) { logger.warn("groupFind: Error: START_ARRAY expected, not found : quiting."); return (Result); } current = jp.nextToken(); while (current != JsonToken.END_ARRAY) { if (current != JsonToken.START_OBJECT) { logger.warn("groupFind: Error: START_OBJECT expected, not found : quiting."); return (Result); } current = jp.nextToken(); JsonNode node = jp.readValueAsTree(); String tmpStr = node.get("name").asText().toString(); if (findName.equals(node.get("name").asText().toString())) { if (ExpectInt != 0) { foundit = node.get("id").asInt(); Result = String.valueOf(foundit); } else { Result = node.get("id").asText().toString(); } break; } current = jp.nextToken(); count = count + 1; } return (Result); }
From source file:org.apache.hadoop.hbase.rest.TestTableScan.java
@Test public void testStreamingJSON() throws Exception { //Test with start row and end row. StringBuilder builder = new StringBuilder(); builder.append("/*"); builder.append("?"); builder.append(Constants.SCAN_COLUMN + "=" + COLUMN_1); builder.append("&"); builder.append(Constants.SCAN_START_ROW + "=aaa"); builder.append("&"); builder.append(Constants.SCAN_END_ROW + "=aay"); Response response = client.get("/" + TABLE + builder.toString(), Constants.MIMETYPE_JSON); assertEquals(200, response.getCode()); int count = 0; ObjectMapper mapper = new JacksonJaxbJsonProvider().locateMapper(CellSetModel.class, MediaType.APPLICATION_JSON_TYPE); JsonFactory jfactory = new JsonFactory(mapper); JsonParser jParser = jfactory.createJsonParser(response.getStream()); boolean found = false; while (jParser.nextToken() != JsonToken.END_OBJECT) { if (jParser.getCurrentToken() == JsonToken.START_OBJECT && found) { RowModel row = jParser.readValueAs(RowModel.class); assertNotNull(row.getKey()); for (int i = 0; i < row.getCells().size(); i++) { if (count == 0) { assertEquals("aaa", Bytes.toString(row.getKey())); }/* ww w . ja v a2 s . co m*/ if (count == 23) { assertEquals("aax", Bytes.toString(row.getKey())); } count++; } jParser.skipChildren(); } else { found = jParser.getCurrentToken() == JsonToken.START_ARRAY; } } assertEquals(24, count); }
From source file:org.eclipse.rdf4j.rio.rdfjson.RDFJSONParser.java
private void rdfJsonToHandlerInternal(final RDFHandler handler, final ValueFactory vf, final JsonParser jp) throws IOException, JsonParseException, RDFParseException, RDFHandlerException { if (jp.nextToken() != JsonToken.START_OBJECT) { reportFatalError("Expected RDF/JSON document to start with an Object", jp.getCurrentLocation()); }// w ww .ja v a 2 s . c o m while (jp.nextToken() != JsonToken.END_OBJECT) { final String subjStr = jp.getCurrentName(); Resource subject = null; subject = subjStr.startsWith("_:") ? createNode(subjStr.substring(2)) : vf.createIRI(subjStr); if (jp.nextToken() != JsonToken.START_OBJECT) { reportFatalError("Expected subject value to start with an Object", jp.getCurrentLocation()); } boolean foundPredicate = false; while (jp.nextToken() != JsonToken.END_OBJECT) { final String predStr = jp.getCurrentName(); final IRI predicate = vf.createIRI(predStr); foundPredicate = true; if (jp.nextToken() != JsonToken.START_ARRAY) { reportFatalError("Expected predicate value to start with an array", jp.getCurrentLocation()); } boolean foundObject = false; while (jp.nextToken() != JsonToken.END_ARRAY) { if (jp.getCurrentToken() != JsonToken.START_OBJECT) { reportFatalError("Expected object value to start with an Object: subject=<" + subjStr + "> predicate=<" + predStr + ">", jp.getCurrentLocation()); } String nextValue = null; String nextType = null; String nextDatatype = null; String nextLanguage = null; final Set<String> nextContexts = new HashSet<String>(2); while (jp.nextToken() != JsonToken.END_OBJECT) { final String fieldName = jp.getCurrentName(); if (RDFJSONUtility.VALUE.equals(fieldName)) { if (nextValue != null) { reportError( "Multiple values found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_VALUES); } jp.nextToken(); nextValue = jp.getText(); } else if (RDFJSONUtility.TYPE.equals(fieldName)) { if (nextType != null) { reportError( "Multiple types found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_TYPES); } jp.nextToken(); nextType = jp.getText(); } else if (RDFJSONUtility.LANG.equals(fieldName)) { if (nextLanguage != null) { reportError( "Multiple languages found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_LANGUAGES); } jp.nextToken(); nextLanguage = jp.getText(); } else if (RDFJSONUtility.DATATYPE.equals(fieldName)) { if (nextDatatype != null) { reportError( "Multiple datatypes found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_DATATYPES); } jp.nextToken(); nextDatatype = jp.getText(); } else if (RDFJSONUtility.GRAPHS.equals(fieldName)) { if (jp.nextToken() != JsonToken.START_ARRAY) { reportError("Expected graphs to start with an array", jp.getCurrentLocation(), RDFJSONParserSettings.SUPPORT_GRAPHS_EXTENSION); } while (jp.nextToken() != JsonToken.END_ARRAY) { final String nextGraph = jp.getText(); nextContexts.add(nextGraph); } } else { reportError( "Unrecognised JSON field name for object: subject=" + subjStr + " predicate=" + predStr + " fieldname=" + fieldName, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_UNKNOWN_PROPERTY); } } Value object = null; if (nextType == null) { reportFatalError("No type for object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextValue == null) { reportFatalError("No value for object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (RDFJSONUtility.LITERAL.equals(nextType)) { if (nextLanguage != null) { object = this.createLiteral(nextValue, nextLanguage, null, jp.getCurrentLocation()); } else if (nextDatatype != null) { object = this.createLiteral(nextValue, null, this.createURI(nextDatatype), jp.getCurrentLocation()); } else { object = this.createLiteral(nextValue, null, null, jp.getCurrentLocation()); } } else if (RDFJSONUtility.BNODE.equals(nextType)) { if (nextLanguage != null) { reportFatalError("Language was attached to a blank node object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextDatatype != null) { reportFatalError("Datatype was attached to a blank node object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } object = createNode(nextValue.substring(2)); } else if (RDFJSONUtility.URI.equals(nextType)) { if (nextLanguage != null) { reportFatalError("Language was attached to a uri object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextDatatype != null) { reportFatalError("Datatype was attached to a uri object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } object = vf.createIRI(nextValue); } foundObject = true; if (!nextContexts.isEmpty()) { for (final String nextContext : nextContexts) { final Resource context; if (nextContext.equals(RDFJSONUtility.NULL)) { context = null; } else if (nextContext.startsWith("_:")) { context = createNode(nextContext.substring(2)); } else { context = vf.createIRI(nextContext); } Statement st = vf.createStatement(subject, predicate, object, context); if (handler != null) { handler.handleStatement(st); } } } else { Statement st = vf.createStatement(subject, predicate, object); if (handler != null) { handler.handleStatement(st); } } } if (!foundObject) { reportFatalError("No object for predicate: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } } if (!foundPredicate) { reportFatalError("No predicate for object: subject=" + subjStr, jp.getCurrentLocation()); } } }
From source file:org.flockdata.integration.FileProcessor.java
private int processJsonEntities(String fileName, ExtractProfile extractProfile) throws FlockException { int rows = 0; File file = new File(fileName); InputStream stream = null;/*from w w w. ja v a 2 s . c o m*/ if (!file.exists()) { stream = ClassLoader.class.getResourceAsStream(fileName); if (stream == null) { logger.error("{} does not exist", fileName); return 0; } } StopWatch watch = new StopWatch(); JsonFactory jfactory = new JsonFactory(); JsonParser jParser; List<EntityToEntityLinkInput> referenceInputBeans = new ArrayList<>(); try { //String docType = mappable.getDataType(); watch.start(); ObjectMapper om = FdJsonObjectMapper.getObjectMapper(); try { if (stream != null) jParser = jfactory.createParser(stream); else jParser = jfactory.createParser(file); JsonToken currentToken = jParser.nextToken(); long then = new DateTime().getMillis(); JsonNode node; if (currentToken == JsonToken.START_ARRAY || currentToken == JsonToken.START_OBJECT) { while (currentToken != null && currentToken != JsonToken.END_OBJECT) { while (currentToken != null && jParser.nextToken() != JsonToken.END_ARRAY) { node = om.readTree(jParser); if (node != null) { processJsonNode(node, extractProfile.getContentModel(), referenceInputBeans); if (stopProcessing(rows++, then)) { break; } } currentToken = jParser.nextToken(); } } } else if (currentToken == JsonToken.START_OBJECT) { //om.readTree(jParser); node = om.readTree(jParser); processJsonNode(node, extractProfile.getContentModel(), referenceInputBeans); } } catch (IOException e1) { logger.error("Unexpected", e1); } } finally { getPayloadWriter().flush(); } return endProcess(watch, rows, 0); }
From source file:org.openhab.binding.weather.internal.parser.JsonWeatherParser.java
/** * Iterates through the JSON structure and collects weather data. *///from ww w . j a va 2 s. c o m private void handleToken(JsonParser jp, String property, Weather weather) throws Exception { JsonToken token = jp.getCurrentToken(); String prop = PropertyResolver.add(property, jp.getCurrentName()); if (token.isStructStart()) { boolean isObject = token == JsonToken.START_OBJECT || token == JsonToken.END_OBJECT; Weather forecast = !isObject ? weather : startIfForecast(weather, prop); while (!jp.nextValue().isStructEnd()) { handleToken(jp, prop, forecast); } if (isObject) { endIfForecast(weather, forecast, prop); } } else { try { setValue(weather, prop, jp.getValueAsString()); } catch (Exception ex) { logger.error("Error setting property '{}' with value '{}' ({})", prop, jp.getValueAsString(), ex.getMessage()); } } }
From source file:org.openrdf.rio.rdfjson.RDFJSONParser.java
private void rdfJsonToHandlerInternal(final RDFHandler handler, final ValueFactory vf, final JsonParser jp) throws IOException, JsonParseException, RDFParseException, RDFHandlerException { if (jp.nextToken() != JsonToken.START_OBJECT) { reportFatalError("Expected RDF/JSON document to start with an Object", jp.getCurrentLocation()); }//from w w w . j a v a 2 s .c om while (jp.nextToken() != JsonToken.END_OBJECT) { final String subjStr = jp.getCurrentName(); Resource subject = null; subject = subjStr.startsWith("_:") ? vf.createBNode(subjStr.substring(2)) : vf.createIRI(subjStr); if (jp.nextToken() != JsonToken.START_OBJECT) { reportFatalError("Expected subject value to start with an Object", jp.getCurrentLocation()); } boolean foundPredicate = false; while (jp.nextToken() != JsonToken.END_OBJECT) { final String predStr = jp.getCurrentName(); final IRI predicate = vf.createIRI(predStr); foundPredicate = true; if (jp.nextToken() != JsonToken.START_ARRAY) { reportFatalError("Expected predicate value to start with an array", jp.getCurrentLocation()); } boolean foundObject = false; while (jp.nextToken() != JsonToken.END_ARRAY) { if (jp.getCurrentToken() != JsonToken.START_OBJECT) { reportFatalError("Expected object value to start with an Object: subject=<" + subjStr + "> predicate=<" + predStr + ">", jp.getCurrentLocation()); } String nextValue = null; String nextType = null; String nextDatatype = null; String nextLanguage = null; final Set<String> nextContexts = new HashSet<String>(2); while (jp.nextToken() != JsonToken.END_OBJECT) { final String fieldName = jp.getCurrentName(); if (RDFJSONUtility.VALUE.equals(fieldName)) { if (nextValue != null) { reportError( "Multiple values found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_VALUES); } jp.nextToken(); nextValue = jp.getText(); } else if (RDFJSONUtility.TYPE.equals(fieldName)) { if (nextType != null) { reportError( "Multiple types found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_TYPES); } jp.nextToken(); nextType = jp.getText(); } else if (RDFJSONUtility.LANG.equals(fieldName)) { if (nextLanguage != null) { reportError( "Multiple languages found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_LANGUAGES); } jp.nextToken(); nextLanguage = jp.getText(); } else if (RDFJSONUtility.DATATYPE.equals(fieldName)) { if (nextDatatype != null) { reportError( "Multiple datatypes found for a single object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_MULTIPLE_OBJECT_DATATYPES); } jp.nextToken(); nextDatatype = jp.getText(); } else if (RDFJSONUtility.GRAPHS.equals(fieldName)) { if (jp.nextToken() != JsonToken.START_ARRAY) { reportError("Expected graphs to start with an array", jp.getCurrentLocation(), RDFJSONParserSettings.SUPPORT_GRAPHS_EXTENSION); } while (jp.nextToken() != JsonToken.END_ARRAY) { final String nextGraph = jp.getText(); nextContexts.add(nextGraph); } } else { reportError( "Unrecognised JSON field name for object: subject=" + subjStr + " predicate=" + predStr + " fieldname=" + fieldName, jp.getCurrentLocation(), RDFJSONParserSettings.FAIL_ON_UNKNOWN_PROPERTY); } } Value object = null; if (nextType == null) { reportFatalError("No type for object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextValue == null) { reportFatalError("No value for object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (RDFJSONUtility.LITERAL.equals(nextType)) { if (nextLanguage != null) { object = this.createLiteral(nextValue, nextLanguage, null, jp.getCurrentLocation()); } else if (nextDatatype != null) { object = this.createLiteral(nextValue, null, this.createURI(nextDatatype), jp.getCurrentLocation()); } else { object = this.createLiteral(nextValue, null, null, jp.getCurrentLocation()); } } else if (RDFJSONUtility.BNODE.equals(nextType)) { if (nextLanguage != null) { reportFatalError("Language was attached to a blank node object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextDatatype != null) { reportFatalError("Datatype was attached to a blank node object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } object = vf.createBNode(nextValue.substring(2)); } else if (RDFJSONUtility.URI.equals(nextType)) { if (nextLanguage != null) { reportFatalError("Language was attached to a uri object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } if (nextDatatype != null) { reportFatalError("Datatype was attached to a uri object: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } object = vf.createIRI(nextValue); } foundObject = true; if (!nextContexts.isEmpty()) { for (final String nextContext : nextContexts) { final Resource context = nextContext.equals(RDFJSONUtility.NULL) ? null : vf.createIRI(nextContext); Statement st = vf.createStatement(subject, predicate, object, context); if (handler != null) { handler.handleStatement(st); } } } else { Statement st = vf.createStatement(subject, predicate, object); if (handler != null) { handler.handleStatement(st); } } } if (!foundObject) { reportFatalError("No object for predicate: subject=" + subjStr + " predicate=" + predStr, jp.getCurrentLocation()); } } if (!foundPredicate) { reportFatalError("No predicate for object: subject=" + subjStr, jp.getCurrentLocation()); } } }
From source file:org.sead.repositories.reference.RefRepository.java
private static void indexChildren(File index, JsonParser jp) throws IOException { JsonGenerator generator = new JsonFactory().createGenerator(index, JsonEncoding.UTF8); generator.useDefaultPrettyPrinter(); generator.writeStartObject();/*from ww w. j a v a2 s. c o m*/ JsonToken cur = jp.nextToken(); while (cur.equals(JsonToken.START_OBJECT)) { long start = jp.getTokenLocation().getByteOffset(); int depth = 1; while (depth > 0) { cur = jp.nextToken(); if (cur.equals(JsonToken.START_OBJECT)) { depth++; } else if (cur.equals(JsonToken.END_OBJECT)) { depth--; } else if (cur.equals(JsonToken.FIELD_NAME) && depth == 1) { if (jp.getText().equals("@id")) { cur = jp.nextToken(); String vName = jp.getText(); generator.writeNumberField(vName, start); } else { report(jp, cur); } } } cur = jp.nextToken(); } generator.writeEndObject(); generator.close(); }
From source file:org.talend.dataprep.api.dataset.DataSetDataReader.java
/** * Reads and Maps the data set from the specified input stream. * <p><strong>Does NOT close the supplied {@link InputStream}</strong></p> * * @param inputStream the input stream containing the data set * @param joinOnColumn the column used to join the lookup data set * @return a map which associates to each value of the joint column its corresponding data set row * @throws IOException In case of JSON exception related error. * @throws IllegalArgumentException If the input stream is not of the expected JSON structure. */// ww w . j a va 2s . c o m public LightweightExportableDataSet parseAndMapLookupDataSet(InputStream inputStream, String joinOnColumn) throws IOException { Validate.isTrue(inputStream != null, "The provided input stream must not be null"); try (JsonParser jsonParser = mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false) .getFactory().createParser(inputStream)) { LightweightExportableDataSet lookupDataset = new LightweightExportableDataSet(); RowMetadata rowMetadata = new RowMetadata(); JsonToken currentToken = jsonParser.nextToken(); Validate.isTrue(currentToken == JsonToken.START_OBJECT, INCORRECT_OBJECT_STRUCTURE_ERROR_MESSAGE); while (currentToken != JsonToken.END_OBJECT && !jsonParser.isClosed()) { currentToken = jsonParser.nextToken(); String currentField = jsonParser.getCurrentName(); if ("metadata".equalsIgnoreCase(currentField)) { JsonToken metadataStartToken = jsonParser.nextToken(); // advance to start object Validate.isTrue(metadataStartToken == JsonToken.START_OBJECT, INCORRECT_OBJECT_STRUCTURE_ERROR_MESSAGE); rowMetadata = parseDataSetMetadataAndReturnRowMetadata(jsonParser); lookupDataset.setMetadata(rowMetadata); } else if ("records".equalsIgnoreCase(currentField)) { JsonToken recordsStartToken = jsonParser.nextToken(); // advance to start object Validate.isTrue(recordsStartToken == JsonToken.START_ARRAY, INCORRECT_OBJECT_STRUCTURE_ERROR_MESSAGE); lookupDataset.setRecords(parseRecords(jsonParser, rowMetadata, joinOnColumn)); } } if (lookupDataset.isEmpty()) { throw new IOException( "No lookup data has been retrieved when trying to parse the specified data set."); } return lookupDataset; } }