Java Code Examples for com.fasterxml.jackson.databind.JsonNode#at()
The following examples show how to use
com.fasterxml.jackson.databind.JsonNode#at() .
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Example 1
Source File: JsonReader.java From tablesaw with Apache License 2.0 | 6 votes |
@Override public Table read(JsonReadOptions options) throws IOException { JsonNode jsonObj = mapper.readTree(options.source().createReader(null)); if (options.path() != null) { jsonObj = jsonObj.at(options.path()); } if (!jsonObj.isArray()) { throw new IllegalStateException( "Only reading a JSON array is currently supported. The array must hold an array or object for each row."); } if (jsonObj.size() == 0) { return Table.create(options.tableName()); } JsonNode firstNode = jsonObj.get(0); if (firstNode.isArray()) { return convertArrayOfArrays(jsonObj, options); } return convertArrayOfObjects(jsonObj, options); }
Example 2
Source File: RemoveIfExistsOperation.java From centraldogma with Apache License 2.0 | 6 votes |
@Override JsonNode apply(final JsonNode node) { if (path.toString().isEmpty()) { return MissingNode.getInstance(); } final JsonNode found = node.at(path); if (found.isMissingNode()) { return node; } final JsonNode parentNode = node.at(path.head()); final String raw = path.last().getMatchingProperty(); if (parentNode.isObject()) { ((ObjectNode) parentNode).remove(raw); } else if (parentNode.isArray()) { ((ArrayNode) parentNode).remove(Integer.parseInt(raw)); } return node; }
Example 3
Source File: AddOperation.java From centraldogma with Apache License 2.0 | 6 votes |
static JsonNode addToArray(final JsonPointer path, final JsonNode node, final JsonNode value) { final ArrayNode target = (ArrayNode) node.at(path.head()); final String rawToken = path.last().getMatchingProperty(); if (rawToken.equals(LAST_ARRAY_ELEMENT)) { target.add(value); return node; } final int size = target.size(); final int index; try { index = Integer.parseInt(rawToken); } catch (NumberFormatException ignored) { throw new JsonPatchException("not an index: " + rawToken + " (expected: a non-negative integer)"); } if (index < 0 || index > size) { throw new JsonPatchException("index out of bounds: " + index + " (expected: >= 0 && <= " + size + ')'); } target.insert(index, value); return node; }
Example 4
Source File: DefaultWorkplaceDescription.java From onos with Apache License 2.0 | 6 votes |
/** * Creating workplace description from json tree. * @param root root node for workplace description * @return workplace description * @throws WorkflowException workflow exception */ public static DefaultWorkplaceDescription valueOf(JsonNode root) throws WorkflowException { JsonNode node = root.at(ptr(WP_NAME)); if (!(node instanceof TextNode)) { throw new WorkflowException("invalid workplace name for " + root); } Builder builder = builder() .name(node.asText()); node = root.at(ptr(WP_DATA)); if (node != null && !(node instanceof MissingNode)) { if (!(node instanceof ObjectNode) && !(node instanceof ArrayNode)) { throw new WorkflowException("invalid workplace data for " + root); } builder.data(node); } return builder.build(); }
Example 5
Source File: JSONUtils.java From SkaETL with Apache License 2.0 | 5 votes |
public void put(JsonNode jsonNode, String path, JsonNode value) { JsonPointer valueNodePointer = JsonPointer.compile(asJsonPath(path)); JsonPointer parentPointer = valueNodePointer.head(); addMissingNodeIfNecessary(jsonNode, path); JsonNode parentNode = jsonNode.at(parentPointer); if (parentNode.getNodeType() == JsonNodeType.OBJECT) { ObjectNode parentNodeToUpdate = (ObjectNode) parentNode; parentNodeToUpdate.set(StringUtils.replace(valueNodePointer.last().toString(),"/", ""), value); } }
Example 6
Source File: JSONUtils.java From SkaETL with Apache License 2.0 | 5 votes |
public void remove(JsonNode jsonNode, String path) { JsonPointer valueNodePointer = JsonPointer.compile(asJsonPath(path)); JsonPointer parentPointer = valueNodePointer.head(); JsonNode parentNode = jsonNode.at(parentPointer); if (parentNode.getNodeType() == JsonNodeType.OBJECT) { ObjectNode parentNodeToUpdate = (ObjectNode) parentNode; parentNodeToUpdate.remove(StringUtils.replace(valueNodePointer.last().toString(),"/","")); } }
Example 7
Source File: JsonPointerBasedInboundEventKeyDetector.java From flowable-engine with Apache License 2.0 | 5 votes |
@Override public String detectEventDefinitionKey(JsonNode event) { JsonNode result = event.at(jsonPointerExpression); if (result == null || result.isMissingNode() || result.isNull()) { LOGGER.warn("JsonPointer expression {} did not detect event key", jsonPointerExpression); return null; } if (result.isTextual()) { return result.asText(); } return null; }
Example 8
Source File: LDJsonParseFilter.java From storm-crawler with Apache License 2.0 | 5 votes |
@Override public void filter(String URL, byte[] content, DocumentFragment doc, ParseResult parse) { if (doc == null) { return; } try { JsonNode json = filterJson(doc); if (json == null) { return; } ParseData parseData = parse.get(URL); Metadata metadata = parseData.getMetadata(); // extract patterns and store as metadata for (LabelledJsonPointer expression : expressions) { JsonNode match = json.at(expression.pointer); if (match.isMissingNode()) { continue; } metadata.addValue(expression.label, match.asText()); } } catch (Exception e) { LOG.error("Exception caught when extracting json", e); } }
Example 9
Source File: JsonReference.java From KaiZen-OpenAPI-Editor with Eclipse Public License 1.0 | 5 votes |
/** * Returns the node that is referenced by this reference. * * If the resolution of the referenced node fails, this method returns null. If the pointer does not points to an * existing node, this method will return a missing node (see JsonNode.isMissingNode()). * * @param document * @param baseURI * @return referenced node */ public JsonNode resolve(JsonDocument document, URI baseURI) { if (resolved == null) { JsonNode doc = getDocument(document, baseURI); if (doc != null) { try { resolved = doc.at(pointer); } catch (Exception e) { resolved = null; } } } return resolved; }
Example 10
Source File: SshAccessInfo.java From onos with Apache License 2.0 | 5 votes |
/** * Builds SshAccessInfo from json. * @param root json root node for SshAccessinfo * @return SSH access information * @throws WorkflowException workflow exception */ public static SshAccessInfo valueOf(JsonNode root) throws WorkflowException { JsonNode node = root.at(ptr(REMOTE_IP)); if (node == null || !(node instanceof TextNode)) { throw new WorkflowException("invalid remoteIp for " + root); } IpAddress sshIp = IpAddress.valueOf(node.asText()); node = root.at(ptr(PORT)); if (node == null || !(node instanceof NumericNode)) { throw new WorkflowException("invalid port for " + root); } TpPort sshPort = TpPort.tpPort(node.asInt()); node = root.at(ptr(USER)); if (node == null || !(node instanceof TextNode)) { throw new WorkflowException("invalid user for " + root); } String sshUser = node.asText(); node = root.at(ptr(PASSWORD)); if (node == null || !(node instanceof TextNode)) { throw new WorkflowException("invalid password for " + root); } String sshPassword = node.asText(); node = root.at(ptr(KEYFILE)); if (node == null || !(node instanceof TextNode)) { throw new WorkflowException("invalid keyfile for " + root); } String sshKeyfile = node.asText(); return new SshAccessInfo(sshIp, sshPort, sshUser, sshPassword, sshKeyfile); }
Example 11
Source File: LinkedInAuthFilter.java From para with Apache License 2.0 | 5 votes |
private String getFullName(JsonNode profileNode) { JsonNode fNameNode = profileNode.at("/firstName/localized"); JsonNode lNameNode = profileNode.at("/lastName/localized"); String fName = fNameNode.elements().hasNext() ? fNameNode.elements().next().textValue() : ""; String lName = lNameNode.elements().hasNext() ? lNameNode.elements().next().textValue() : ""; return (fName + " " + lName).trim(); }
Example 12
Source File: JsonPatchOperation.java From centraldogma with Apache License 2.0 | 5 votes |
JsonNode ensureExistence(JsonNode node) { final JsonNode found = node.at(path); if (found.isMissingNode()) { throw new JsonPatchException("non-existent path: " + path); } return found; }
Example 13
Source File: SampleWorkflow.java From onos with Apache License 2.0 | 5 votes |
/** * Allocates or gets data model. * * @param context workflow context * @return json object node * @throws WorkflowException workflow exception */ protected ObjectNode allocOrGetModel(WorkflowContext context) throws WorkflowException { JsonDataModelTree tree = (JsonDataModelTree) context.data(); JsonNode params = tree.root(); if (params.at(MODEL_SAMPLE_JOB).getNodeType() == JsonNodeType.MISSING) { tree.alloc(MODEL_SAMPLE_JOB, DataModelTree.Nodetype.MAP); } return (ObjectNode) params.at(MODEL_SAMPLE_JOB); }
Example 14
Source File: DafPreStandardization.java From daf-kylo with GNU Affero General Public License v3.0 | 5 votes |
/** * This method is public to be testable * @param mapper * @param root * @return */ public static Stream<FlatSchema> getFlatSchema(ObjectMapper mapper, JsonNode root) { final JsonNode list = root.at("/dataschema/flatSchema"); return StreamSupport.stream(list.spliterator(), false) .map(n -> { try { return mapper.treeToValue(n, FlatSchema.class); } catch (JsonProcessingException e) { e.printStackTrace(); return null; } }) .filter(Objects::nonNull); }
Example 15
Source File: JSONUtils.java From SkaETL with Apache License 2.0 | 4 votes |
public JsonNode at(JsonNode jsonNode, String path) { String jsonPath = asJsonPath(path); return jsonNode.at(jsonPath); }
Example 16
Source File: JSONUtils.java From SkaETL with Apache License 2.0 | 4 votes |
public boolean has(JsonNode jsonNode, String path) { String jsonPath = asJsonPath(path); JsonNode targetNode = jsonNode.at(jsonPath); return targetNode != null && targetNode.getNodeType() != JsonNodeType.NULL && targetNode.getNodeType() != JsonNodeType.MISSING; }
Example 17
Source File: FFmpegParser.java From airsonic with GNU General Public License v3.0 | 4 votes |
/** * Parses meta data for the given music file. No guessing or reformatting is done. * * * @param file The music file to parse. * @return Meta data for the file. */ @Override public MetaData getRawMetaData(File file) { MetaData metaData = new MetaData(); try { // Use `ffprobe` in the transcode directory if it exists, otherwise let the system sort it out. String ffprobe; File inTranscodeDirectory = new File(transcodingService.getTranscodeDirectory(), "ffprobe"); if (inTranscodeDirectory.exists()) { ffprobe = inTranscodeDirectory.getAbsolutePath(); } else { ffprobe = "ffprobe"; } List<String> command = new ArrayList<>(); command.add(ffprobe); command.addAll(Arrays.asList(FFPROBE_OPTIONS)); command.add(file.getAbsolutePath()); Process process = Runtime.getRuntime().exec(command.toArray(new String[0])); final JsonNode result = objectMapper.readTree(process.getInputStream()); metaData.setDurationSeconds(result.at("/format/duration").asInt()); // Bitrate is in Kb/s metaData.setBitRate(result.at("/format/bit_rate").asInt() / 1000); // Find the first (if any) stream that has dimensions and use those. // 'width' and 'height' are display dimensions; compare to 'coded_width', 'coded_height'. for (JsonNode stream : result.at("/streams")) { if (stream.has("width") && stream.has("height")) { metaData.setWidth(stream.get("width").asInt()); metaData.setHeight(stream.get("height").asInt()); break; } } } catch (Throwable x) { LOG.warn("Error when parsing metadata in " + file, x); } return metaData; }
Example 18
Source File: FFmpegParser.java From airsonic-advanced with GNU General Public License v3.0 | 4 votes |
/** * Parses meta data for the given music file. No guessing or reformatting is done. * * * @param file The music file to parse. * @return Meta data for the file. */ @Override public MetaData getRawMetaData(Path file) { MetaData metaData = new MetaData(); try { // Use `ffprobe` in the transcode directory if it exists, otherwise let the system sort it out. String ffprobe; Path inTranscodeDirectory = Util.isWindows() ? transcodingService.getTranscodeDirectory().resolve("ffprobe.exe") : transcodingService.getTranscodeDirectory().resolve("ffprobe"); if (Files.exists(inTranscodeDirectory)) { ffprobe = inTranscodeDirectory.toAbsolutePath().toString(); } else { ffprobe = "ffprobe"; } List<String> command = new ArrayList<>(); command.add(ffprobe); command.addAll(Arrays.asList(FFPROBE_OPTIONS)); command.add(file.toAbsolutePath().toString()); Process process = Runtime.getRuntime().exec(command.toArray(new String[0])); final JsonNode result = objectMapper.readTree(process.getInputStream()); metaData.setDuration(result.at("/format/duration").asDouble()); // Bitrate is in Kb/s metaData.setBitRate(result.at("/format/bit_rate").asInt() / 1000); // Find the first (if any) stream that has dimensions and use those. // 'width' and 'height' are display dimensions; compare to 'coded_width', 'coded_height'. for (JsonNode stream : result.at("/streams")) { if (stream.has("width") && stream.has("height")) { metaData.setWidth(stream.get("width").asInt()); metaData.setHeight(stream.get("height").asInt()); break; } } } catch (Throwable x) { LOG.warn("Error when parsing metadata in " + file, x); } return metaData; }
Example 19
Source File: DafPreStandardization.java From daf-kylo with GNU Affero General Public License v3.0 | 4 votes |
/** * This method is public to be testable * @param root * @return */ public static String getPhysicalUri(ObjectMapper mapper, JsonNode root) throws IOException { final JsonNode node = root.at("/operational/physical_uri"); if (node.isMissingNode()) throw new NullPointerException("missing value for /operational/physical_uri"); return node.textValue(); }
Example 20
Source File: JsonTemplateLayoutTest.java From logging-log4j2 with Apache License 2.0 | 4 votes |
private static JsonNode point(final JsonNode node, final Object... fields) { final String pointer = createJsonPointer(fields); return node.at(pointer); }