Java DeserializationFeature類代碼示例

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
private String toJacksonString(JsonFactory factory) {
    ObjectMapper om = new ObjectMapper(factory);
    om.registerModule(new JodaModule());
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    String str;
    try {
        str = om.writeValueAsString(this);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return str;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
@Test
public void testJson() throws Exception {

    ObjectMapper om = new ObjectMapper();
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
    om.enable(SerializationFeature.INDENT_OUTPUT);

    ISchedule[] schedules = new ISchedule[]{
            new ExponentialSchedule(ScheduleType.ITERATION, 1.0, 0.5),
            new InverseSchedule(ScheduleType.ITERATION, 1.0, 0.5, 2),
            new MapSchedule.Builder(ScheduleType.ITERATION).add(0, 1.0).add(10,0.5).build(),
            new PolySchedule(ScheduleType.ITERATION, 1.0, 2, 100),
            new SigmoidSchedule(ScheduleType.ITERATION, 1.0, 0.5, 10),
            new StepSchedule(ScheduleType.ITERATION, 1.0, 0.9, 100)};


    for(ISchedule s : schedules){
        String json = om.writeValueAsString(s);
        ISchedule fromJson = om.readValue(json, ISchedule.class);
        assertEquals(s, fromJson);
    }
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
@Test
public void testJsonSerialization() throws Exception {

    INDArray w = Nd4j.create(new double[] {1.0, 2.0, 3.0});

    ILossFunction[] lossFns = new ILossFunction[] {new LossBinaryXENT(), new LossBinaryXENT(w),
                    new LossCosineProximity(), new LossHinge(), new LossKLD(), new LossL1(), new LossL1(w),
                    new LossL2(), new LossL2(w), new LossMAE(), new LossMAE(w), new LossMAPE(), new LossMAPE(w),
                    new LossMCXENT(), new LossMCXENT(w), new LossMSE(), new LossMSE(w), new LossMSLE(),
                    new LossMSLE(w), new LossNegativeLogLikelihood(), new LossNegativeLogLikelihood(w),
                    new LossPoisson(), new LossSquaredHinge()};

    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    mapper.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
    mapper.enable(SerializationFeature.INDENT_OUTPUT);

    for (ILossFunction lf : lossFns) {
        String asJson = mapper.writeValueAsString(lf);
        //            System.out.println(asJson);

        ILossFunction fromJson = mapper.readValue(asJson, ILossFunction.class);
        assertEquals(lf, fromJson);
    }
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
private static ObjectMapper configureMapper(ObjectMapper ret) {
    ret.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    ret.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    ret.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, false);
    ret.enable(SerializationFeature.INDENT_OUTPUT);
    SimpleModule atomicModule = new SimpleModule();
    atomicModule.addSerializer(AtomicDouble.class,new JsonSerializerAtomicDouble());
    atomicModule.addSerializer(AtomicBoolean.class,new JsonSerializerAtomicBoolean());
    atomicModule.addDeserializer(AtomicDouble.class,new JsonDeserializerAtomicDouble());
    atomicModule.addDeserializer(AtomicBoolean.class,new JsonDeserializerAtomicBoolean());
    ret.registerModule(atomicModule);
    //Serialize fields only, not using getters
    ret.setVisibilityChecker(ret.getSerializationConfig().getDefaultVisibilityChecker()
            .withFieldVisibility(JsonAutoDetect.Visibility.ANY)
            .withGetterVisibility(JsonAutoDetect.Visibility.NONE)
            .withSetterVisibility(JsonAutoDetect.Visibility.NONE)
            .withCreatorVisibility(JsonAutoDetect.Visibility.NONE));
    return ret;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
private static ObjectMapper initMapper(JsonFactory factory) {
    ObjectMapper om = new ObjectMapper(factory);
    om.registerModule(new JodaModule());
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    return om;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
private static Schema fromJacksonString(String str, JsonFactory factory) {
    ObjectMapper om = new ObjectMapper(factory);
    om.registerModule(new JodaModule());
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    try {
        return om.readValue(str, Schema.class);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
protected ObjectMapper getObjectMapper(JsonFactory factory) {
    ObjectMapper om = new ObjectMapper(factory);
    om.registerModule(new JodaModule());
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    return om;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
/**
 * Clone of initMapper used for serialization and deserialization
 * of TransformProcess class, to support unit testing of
 * serialization and deserializtion of individual transforms.
 *
 * @param factory   JsonFactory
 * @return          ObjectMapper for serde of transforms
 */
public static ObjectMapper initMapper(JsonFactory factory) {
    ObjectMapper om = new ObjectMapper(new JsonFactory());
    om.registerModule(new JodaModule());
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    return om;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
/**
 * Read JSON-formatted string attribute.
 *
 * @param attribute     HDF5 attribute to read as JSON formatted string.
 * @return
 * @throws UnsupportedKerasConfigurationException
 */
private String readAttributeAsJson(hdf5.Attribute attribute) throws UnsupportedKerasConfigurationException {
    hdf5.VarLenType vl = attribute.getVarLenType();
    int bufferSizeMult = 1;
    String s = null;
    /* TODO: find a less hacky way to do this.
     * Reading variable length strings (from attributes) is a giant
     * pain. There does not appear to be any way to determine the
     * length of the string in advance, so we use a hack: choose a
     * buffer size and read the config. If Jackson fails to parse
     * it, then we must not have read the entire config. Increase
     * buffer and repeat.
     */
    while (true) {
        byte[] attrBuffer = new byte[bufferSizeMult * 2000];
        BytePointer attrPointer = new BytePointer(attrBuffer);
        attribute.read(vl, attrPointer);
        attrPointer.get(attrBuffer);
        s = new String(attrBuffer);
        ObjectMapper mapper = new ObjectMapper();
        mapper.enable(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY);
        try {
            mapper.readTree(s);
            break;
        } catch (IOException e) {
        }
        bufferSizeMult++;
        if (bufferSizeMult > 100) {
            throw new UnsupportedKerasConfigurationException("Could not read abnormally long HDF5 attribute");
        }
    }
    return s;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
private static ObjectMapper getModelMapper() {
    ObjectMapper ret = new ObjectMapper();
    ret.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    ret.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    ret.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
    ret.enable(SerializationFeature.INDENT_OUTPUT);
    return ret;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
public static ObjectMapper mapper() {
    /*
          DO NOT ENABLE INDENT_OUTPUT FEATURE
          we need THIS json to be single-line
      */
    ObjectMapper ret = new ObjectMapper();
    ret.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    ret.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    ret.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
    return ret;
}
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
public static String renderHTMLContent(Component... components) throws Exception {

        ObjectMapper mapper = new ObjectMapper();
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        mapper.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
        mapper.enable(SerializationFeature.INDENT_OUTPUT);

        Configuration cfg = new Configuration(new Version(2, 3, 23));

        // Where do we load the templates from:
        cfg.setClassForTemplateLoading(StaticPageUtil.class, "");

        // Some other recommended settings:
        cfg.setIncompatibleImprovements(new Version(2, 3, 23));
        cfg.setDefaultEncoding("UTF-8");
        cfg.setLocale(Locale.US);
        cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);

        ClassPathResource cpr = new ClassPathResource("assets/dl4j-ui.js");
        String scriptContents = IOUtils.toString(cpr.getInputStream(), "UTF-8");

        Map<String, Object> pageElements = new HashMap<>();
        List<ComponentObject> list = new ArrayList<>();
        int i = 0;
        for (Component c : components) {
            list.add(new ComponentObject(String.valueOf(i), mapper.writeValueAsString(c)));
            i++;
        }
        pageElements.put("components", list);
        pageElements.put("scriptcontent", scriptContents);


        Template template = cfg.getTemplate("staticpage.ftl");
        Writer stringWriter = new StringWriter();
        template.process(pageElements, stringWriter);

        return stringWriter.toString();
    }
 

import org.nd4j.shade.jackson.databind.DeserializationFeature; //導入依賴的package包/類
protected static ObjectMapper getNewMapper(JsonFactory jsonFactory) {
    ObjectMapper om = new ObjectMapper(jsonFactory);
    om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    om.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
    om.enable(SerializationFeature.INDENT_OUTPUT);
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
    om.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
    return om;
}