Example usage for com.fasterxml.jackson.databind ObjectMapper readValue

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind ObjectMapper readValue.

Prototype

@SuppressWarnings("unchecked")
    public <T> T readValue(byte[] src, JavaType valueType)
            throws IOException, JsonParseException, JsonMappingException

Source Link

Usage

From source file:com.lucas.analytics.controller.ml.SearchController.java

public static Search getSearch(String query) throws IOException {
    ObjectMapper mapper = new ObjectMapper();

    String noWhitespace = query.replace(" ", "+");

    String targetUrl = baseUrl + "?q=" + StringEscapeUtils.escapeHtml4(noWhitespace) + "&limit=10";

    System.out.println("targetUrl: " + targetUrl);

    return mapper.readValue(Request.Get(targetUrl).execute().returnContent().asString(), Search.class);
}

From source file:io.github.retz.scheduler.MesosHTTPFetcher.java

public static Optional<String> extractContainerId(InputStream stream, String frameworkId, String executorId)
        throws IOException {
    //  { ... "frameworks" : [ { ... "executors":[ { "id":"sum", "completed_tasks":[], "tasks":[], "queued_tasks":[]} ] ...
    ObjectMapper mapper = new ObjectMapper();
    Map<String, Map<String, Object>> map = mapper.readValue(stream, java.util.Map.class);
    List<Map<String, Object>> list = (List) map.get("frameworks");

    // TODO: use json-path for cleaner and flexible code
    for (Map<String, Object> executors : list) {
        if (executors.get("executors") != null) {
            for (Map<String, Object> executor : (List<Map<String, Object>>) executors.get("executors")) {
                if (executor.get("id").equals(executorId)) {
                    return Optional.ofNullable((String) executor.get("container"));
                }/*w w w  .  ja  va 2  s .  co m*/
            }
        }
    }
    return Optional.empty();
}

From source file:io.github.retz.scheduler.MesosHTTPFetcher.java

public static Optional<String> extractDirectory(InputStream stream, String frameworkId, String executorId)
        throws IOException {
    // REVIEW: this may prepare corresponded object type instead of using java.util.Map
    //  { ... "frameworks" : [ { ... "executors":[ { "id":"sum", "completed_tasks":[], "tasks":[], "queued_tasks":[]} ] ...
    ObjectMapper mapper = new ObjectMapper();
    Map<String, Map<String, Object>> map = mapper.readValue(stream, java.util.Map.class);
    List<Map<String, Object>> list = (List) map.get("frameworks");

    // TODO: use json-path for cleaner and flexible code
    for (Map<String, Object> executors : list) {
        if (executors.get("executors") != null) {
            for (Map<String, Object> executor : (List<Map<String, Object>>) executors.get("executors")) {
                if (executor.get("id").equals(executorId)) {
                    return Optional.ofNullable((String) executor.get("directory"));
                }//w  w w. j a  v  a 2s.  co  m
            }
        }
    }
    return Optional.empty();
}

From source file:com.tectonica.thirdparty.Jackson2.java

public static <T> T fromJson(String jsonStr, Class<T> clz, ObjectMapper mapper) {
    try {/*from  w  w  w  .java2s. c  o  m*/
        return mapper.readValue(jsonStr, clz);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.tectonica.thirdparty.Jackson2.java

public static <T> T fromJson(InputStream is, Class<T> clz, ObjectMapper mapper) {
    try {/*from w  w  w . j a  v  a 2 s .c om*/
        return mapper.readValue(is, clz);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.tectonica.thirdparty.Jackson2.java

public static <T> T fromJson(Reader r, Class<T> clz, ObjectMapper mapper) {
    try {/*from  w w w .j  a  v a  2 s  . c  o  m*/
        return mapper.readValue(r, clz);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.xeiam.xchange.rest.JSONUtils.java

/**
 * Get a generic map holding the raw data from the JSON string to allow manual type differentiation
 * /*from   w ww .  j a v a  2 s . c  om*/
 * @param jsonString The JSON string
 * @param objectMapper The object mapper
 * @return The map
 */
public static Map<String, Object> getJsonGenericMap(String jsonString, ObjectMapper objectMapper) {

    Assert.notNull(jsonString, "jsonString cannot be null");
    Assert.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 ExchangeException("Problem getting JSON generic map", e);
    }
}

From source file:com.hurence.logisland.config.ConfigReader.java

/**
 * Loads a YAML config file//ww  w  .j  a va 2 s.c  o m
 *
 * @param configFilePath the path of the config file
 * @return a LogislandSessionConfiguration
 * @throws Exception
 */
public static LogislandConfiguration loadConfig(String configFilePath) throws Exception {
    ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
    File configFile = new File(configFilePath);

    if (!configFile.exists()) {
        throw new FileNotFoundException("Error: File " + configFilePath + " not found!");
    }

    return mapper.readValue(configFile, LogislandConfiguration.class);
}

From source file:de.undercouch.bson4jackson.deserializers.BsonDeserializersTest.java

private static <T> T generateAndParse(Object o, Class<T> cls) throws Exception {
    BSONObject bo = new BasicBSONObject();
    bo.put("obj", o); //that's why all properties of classes in TC must be named 'obj'
    BSONEncoder encoder = new BasicBSONEncoder();
    byte[] barr = encoder.encode(bo);

    ByteArrayInputStream bais = new ByteArrayInputStream(barr);

    ObjectMapper om = new ObjectMapper(new BsonFactory());
    om.registerModule(new BsonModule());
    T r = om.readValue(bais, cls);
    return r;//from ww  w  .  j  a v  a  2  s .  c  o  m
}

From source file:com.appdynamics.extensions.solr.SolrHelper.java

public static JsonNode getJsonNode(InputStream inputStream) throws IOException {
    if (inputStream == null) {
        return null;
    }//www.  ja va2  s . c  o m
    ObjectMapper mapper = new ObjectMapper();
    return mapper.readValue(inputStream, JsonNode.class);
}