Examples of com.fasterxml.jackson.core.JsonFactory

com.fasterxml.jackson.core.JsonFactory
The main factory class of Jackson package, used to configure and construct reader (aka parser, {@link JsonParser}) and writer (aka generator, {@link JsonGenerator}) instances.
Factory instances are thread-safe and reusable after configuration (if any). Typically applications and services use only a single globally shared factory instance, unless they need differently configured factories. Factory reuse is important if efficiency matters; most recycling of expensive construct is done on per-factory basis.
Creation of a factory instance is a light-weight operation, and since there is no need for pluggable alternative implementations (as there is no "standard" JSON processor API to implement), the default constructor is used for constructing factory instances. @author Tatu Saloranta

    return null;
  }
  
  private HashMap<String, HashMap<String,RegEntry>> getMapFromJsonString(String json) {
    Registry map = null;
    JsonFactory factory = new JsonFactory(); 
    ObjectMapper mapper = new ObjectMapper(factory); 
    TypeReference<Registry> typeRef 
          = new TypeReference<Registry>() {}; 
    try {
      map = mapper.readValue(json, typeRef);

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    // NOTE: AdminServletModule (metrics-guice integration) generates invalid links, so wire up servlets ourselves


    final Clock clock = Clock.defaultClock();
    bind(Clock.class).toInstance(clock);


    final JsonFactory jsonFactory = new JsonFactory(new ObjectMapper());
    bind(JsonFactory.class).toInstance(jsonFactory);


    install(new ServletModule()
    {
      @Override

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public class JsonHelper {


    public JsonNode createJsonFromString(String jsonString) {
        try {
            ObjectMapper mapper = new ObjectMapper();
            JsonFactory factory = mapper.getFactory();
            JsonParser jp = factory.createParser(jsonString);
            return mapper.readTree(jp);
        } catch (IOException e) {
            throw new InternalServerException("Failed to parse JSON string.", e);
        }
    }

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    private UDPServer server;
    private AbstractTaskKeeper keeper;
    private ResolverEngine engine;


    public Configuration loadConfiguration(Reader stream) throws IOException {
        JsonFactory factory = new JsonFactory();
        ObjectMapper mapper = new ObjectMapper(factory);
        return mapper.readValue(stream, ConfigurationImpl.class);
    }

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public class JSONProtocol {
    protected final ObjectMapper mapper;


    public JSONProtocol() {
        JsonFactory factory = new JsonFactory();
        this.mapper = new ObjectMapper(factory);
        this.mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
        this.mapper.registerSubtypes(Update.class);
        this.mapper.registerSubtypes(Request.class);
        // Hack: this "warms up" objectmapper, for faster first operation

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import java.io.StringReader;




public class TestConfigurationImpl {
    private ConfigurationImpl mkConfiguration(String confdata) throws IOException {
        JsonFactory factory = new JsonFactory();
        ObjectMapper mapper = new ObjectMapper(factory);
        StringReader stream = new StringReader(confdata);
        return mapper.readValue(stream, ConfigurationImpl.class);
    }

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  public static Lockfile read(Reader data) throws LockfileParseException, IOException {
    Set<LockfileRequirement> requirements = null;
    Set<LockfileContext> contexts = null;
    Set<LockfileArtifact> artifacts = null;
    JsonParser parser = new JsonFactory().createParser(data);
    try {
      // Get START_OBJECT
      parser.nextToken();
      // Read field name or END_OBJECT
      while (parser.nextToken() != JsonToken.END_OBJECT) {

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        getFakeApplication(), 
        new Runnable() 
        {
          public void run() 
          {
            JsonFactory factory = new JsonFactory();
            ObjectMapper mp = new ObjectMapper(factory);




            FakeRequest request = new FakeRequest(getMethod(), getRouteAddress());
            request = request.withHeader(TestConfig.KEY_APPCODE, TestConfig.VALUE_APPCODE);

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      if(StringUtils.isEmpty(body)){
        return false;
      }else{
        ObjectMapper mapper = new ObjectMapper();
        JsonFactory factory = mapper.getJsonFactory(); // since 2.1 use mapper.getFactory() instead
        JsonParser jp = factory.createJsonParser(body);
        JsonNode jn = mapper.readTree(jp);
        return validate(jn);
      }
    } catch (IOException e) {
      throw new BaasBoxSocialTokenValidationException("There was an error in the token validation process:"+e.getMessage());

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public class JacksonTest
{
    @Test
    public void objectMapperUsesGivenCustomJsonFactory() {
        JsonFactory factory = Mockito.mock(JsonFactory.class);


        ObjectMapper mapper = Jackson.newObjectMapper(factory);


        assertThat(mapper.getFactory()).isSameAs(factory);
    }

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