List of usage examples for com.fasterxml.jackson.databind ObjectMapper readValue
@SuppressWarnings("unchecked") public <T> T readValue(byte[] src, JavaType valueType) throws IOException, JsonParseException, JsonMappingException
From source file:si.mazi.rescu.JSONUtils.java
/** * Get a generic map holding the raw data from the JSON string to allow manual type differentiation * * @param jsonString The JSON string/*from w w w.j a v a 2s . co m*/ * @param objectMapper The object mapper * @return The map */ public static Map<String, Object> getJsonGenericMap(String jsonString, ObjectMapper objectMapper) { AssertUtil.notNull(jsonString, "jsonString cannot be null"); AssertUtil.notNull(objectMapper, "objectMapper cannot be null"); try { return objectMapper.readValue(jsonString, new TypeReference<Map<String, Object>>() { }); } catch (IOException e) { // Rethrow as runtime exception throw new RuntimeException("Problem getting JSON generic map", e); } }
From source file:com.couchbase.client.core.util.ClusterDependentTest.java
private static Integer minNodeVersionFromConfig(String rawConfig) throws Exception { ObjectMapper mapper = new ObjectMapper(); JavaType type = mapper.getTypeFactory().constructMapType(Map.class, String.class, Object.class); Map<String, Object> result = mapper.readValue(rawConfig, type); List<Object> nodes = (List<Object>) result.get("nodes"); int min = 99; for (Object n : nodes) { Map<String, Object> node = (Map<String, Object>) n; String version = (String) node.get("version"); int major = Integer.parseInt(version.substring(0, 1)); if (major < min) { min = major;/* w ww . j ava 2 s .c o m*/ } } return min; }
From source file:gndata.lib.config.AbstractConfig.java
/** * Loads a configuration of a certain type from a json file. * Note: this method should be used by subclasses in order to implement * a more specific load method.//from w w w .ja va 2 s . c o m * * @param filePath Path to the json configuration file to read from. * @param cls The class of the configuration type. * * @throws IOException */ protected static <T extends AbstractConfig> T load(String filePath, Class<T> cls) throws IOException { Path tmpPath = Paths.get(filePath); ObjectMapper mapper = new ObjectMapper().enable(ACCEPT_EMPTY_STRING_AS_NULL_OBJECT) .enable(ACCEPT_SINGLE_VALUE_AS_ARRAY).disable(FAIL_ON_UNKNOWN_PROPERTIES); try { T config = mapper.readValue(tmpPath.toFile(), cls); config.setFilePath(tmpPath.toString()); return config; } catch (IOException e) { throw new IOException("Unable to read configuration file: " + filePath, e); } }
From source file:io.github.cdelmas.spike.sparkjava.Main.java
private static void configureUnirest(final ObjectMapper objectMapper) { Unirest.setObjectMapper(new com.mashape.unirest.http.ObjectMapper() { @Override/*from w w w . j a v a 2s . co m*/ public <T> T readValue(String value, Class<T> valueType) { try { return objectMapper.readValue(value, valueType); } catch (IOException e) { throw new UncheckedIOException(e); } } @Override public String writeValue(Object value) { try { return objectMapper.writeValueAsString(value); } catch (JsonProcessingException e) { throw new RuntimeException(e); } } }); }
From source file:org.saltyrtc.client.helpers.MessageReader.java
/** * Read MessagePack bytes, return a Message subclass instance. * @param bytes Messagepack bytes.// ww w . jav a2 s . c om * @param taskTypes List of message types supported by task. * @return Message subclass instance. * @throws SerializationError Thrown if deserialization fails. * @throws ValidationError Thrown if message can be deserialized but is invalid. */ public static Message read(byte[] bytes, List<String> taskTypes) throws SerializationError, ValidationError { // Unpack data into map ObjectMapper objectMapper = new ObjectMapper(new MessagePackFactory()); Map<String, Object> map; try { map = objectMapper.readValue(bytes, new TypeReference<Map<String, Object>>() { }); } catch (IOException e) { throw new SerializationError("Deserialization failed", e); } // Get type value if (!map.containsKey("type")) { throw new SerializationError("Message does not contain a type field"); } Object typeObj = map.get("type"); if (!(typeObj instanceof String)) { throw new SerializationError("Message type must be a string"); } String type = (String) typeObj; // Dispatch message instantiation switch (type) { case "server-hello": return new ServerHello(map); case "client-hello": return new ClientHello(map); case "server-auth": if (map.containsKey("initiator_connected")) { return new ResponderServerAuth(map); } else if (map.containsKey("responders")) { return new InitiatorServerAuth(map); } throw new ValidationError("Invalid server-auth message"); case "client-auth": return new ClientAuth(map); case "new-initiator": return new NewInitiator(map); case "new-responder": return new NewResponder(map); case "drop-responder": return new DropResponder(map); case "send-error": return new SendError(map); case "token": return new Token(map); case "key": return new Key(map); case "auth": if (map.containsKey("task")) { return new InitiatorAuth(map); } else if (map.containsKey("tasks")) { return new ResponderAuth(map); } throw new ValidationError("Invalid auth message"); case "close": return new Close(map); case "application": return new Application(map); default: if (taskTypes.contains(type)) { return new TaskMessage(type, map); } throw new ValidationError("Unknown message type: " + type); } }
From source file:com.twosigma.beakerx.table.serializer.TableDisplayDeSerializer.java
@SuppressWarnings("unchecked") public static List<String> getClasses(JsonNode n, ObjectMapper mapper) throws IOException { List<String> classes = null; if (n.has("types")) classes = mapper.readValue(n.get("types").toString(), List.class); return classes; }
From source file:com.enremmeta.onenow.Utils.java
public static Config loadConfig(String fileName, Class<? extends Config> configClass) throws MalformedURLException, IOException { JsonFactory jsonFactory = new JsonFactory(); jsonFactory.configure(Feature.ALLOW_COMMENTS, true); ObjectMapper mapper = new ObjectMapper(jsonFactory); Config config;// w w w. j a v a2 s . c om if (fileName.startsWith("http://") || fileName.startsWith("https://")) { URL url = new URL(fileName); config = mapper.readValue(url, configClass); } else { File file = new File(fileName); config = mapper.readValue(file, configClass); } return config; }
From source file:it.uniroma2.sag.kelp.linearization.nystrom.NystromMethodEnsemble.java
/** * Load an Ensemble of Nystrom projectors saved on file. * /*w w w .j a v a 2 s . c o m*/ * @param inputFilePath * The input file path * @return * @throws FileNotFoundException * @throws IOException */ public static NystromMethodEnsemble load(String inputFilePath) throws FileNotFoundException, IOException { ObjectMapper mapper = new ObjectMapper(); InputStream inputStream = FileUtils.createInputStream(inputFilePath); return mapper.readValue(inputStream, NystromMethodEnsemble.class); }
From source file:com.twosigma.beakerx.table.serializer.TableDisplayDeSerializer.java
@SuppressWarnings("unchecked") public static List<String> getColumns(JsonNode n, ObjectMapper mapper) throws IOException { List<String> columns = null; if (n.has("columnNames")) columns = mapper.readValue(n.get("columnNames").toString(), List.class); return columns; }
From source file:com.liferay.sync.engine.util.SyncClientUpdater.java
public static SyncVersion getLatestSyncVersion() throws Exception { HttpResponse httpResponse = execute(PropsValues.SYNC_UPDATE_CHECK_URL); if (httpResponse == null) { return null; }//from w w w . java 2 s. c o m ObjectMapper objectMapper = new ObjectMapper(); HttpEntity httpEntity = httpResponse.getEntity(); return objectMapper.readValue(httpEntity.getContent(), new TypeReference<SyncVersion>() { }); }