Java JsonNumber.isIntegral方法代碼示例

import javax.json.JsonNumber; //導入方法依賴的package包/類
/**
 * Converts a {@link JsonValue} to its corresponding Java object. Values of type {@link
 * JsonObject} or {@link JsonArray} are converted as specified by {@link #toJavaMap} and {@link
 * #toJavaList}, respectively.
 */
@Nullable
public static Object toJavaObject(JsonValue value) {
  switch (value.getValueType()) {
    case ARRAY:
      return toJavaList((JsonArray) value);
    case FALSE:
      return Boolean.FALSE;
    case NULL:
      return null;
    case NUMBER:
      JsonNumber number = (JsonNumber) value;
      return number.isIntegral() ? number.intValue() : number.doubleValue();
    case OBJECT:
      return toJavaMap((JsonObject) value);
    case STRING:
      return ((JsonString) value).getString();
    case TRUE:
      return Boolean.TRUE;
    default:
      throw new VerifyException("Json value with unknown type: " + value);
  }
}
 

import javax.json.JsonNumber; //導入方法依賴的package包/類
public static Object unbox(JsonValue value, Function<JsonStructure, Object> convert) throws JsonException {
    switch (value.getValueType()) {
        case ARRAY:
        case OBJECT:
            return convert.apply((JsonStructure) value);
        case FALSE:
            return Boolean.FALSE;
        case TRUE:
            return Boolean.TRUE;
        case NULL:
            return null;
        case NUMBER:
            JsonNumber number = (JsonNumber) value;
            return number.isIntegral() ? number.longValue() : number.doubleValue();
        case STRING:
            return ((JsonString) value).getString();
        default:
            throw new JsonException("Unknow value type");
    }
}
 

import javax.json.JsonNumber; //導入方法依賴的package包/類
@GET
@Path("/verifyInjectedCustomInteger")
@Produces(MediaType.APPLICATION_JSON)
public JsonObject verifyInjectedCustomInteger(@QueryParam("value") Long value) {
    boolean pass = false;
    String msg;
    // iat
    Object test = customInteger.get();
    System.out.printf("+++ verifyInjectedCustomInteger, JsonNumber.class.CL: %s\n",
        JsonNumber.class.getClassLoader());
    System.out.printf("+++ customInteger.CL: %s\n",
        test.getClass().getClassLoader());
    Class[] ifaces = test.getClass().getInterfaces();
    for(Class iface : ifaces) {
        System.out.printf("%s: %s\n", iface, iface.getClassLoader());
    }
    JsonNumber customValue = JsonNumber.class.cast(test);
    if(customValue == null || customValue.isIntegral() == false) {
        msg = "customInteger value is null or not integral, FAIL";
    }
    else if(customValue.longValueExact() == value) {
        msg = "customInteger PASS";
        pass = true;
    }
    else {
        msg = String.format("customInteger: %d != %d", customValue, value);
    }
    JsonObject result = Json.createObjectBuilder()
        .add("pass", pass)
        .add("msg", msg)
        .build();
    return result;
}
 

import javax.json.JsonNumber; //導入方法依賴的package包/類
@GET
@Path("/verifyInjectedCustomInteger")
@Produces(MediaType.APPLICATION_JSON)
public JsonObject verifyInjectedCustomInteger(@QueryParam("value") Long value) {
    boolean pass = false;
    String msg;
    // iat
    Object test = customInteger.getValue();
    System.out.printf("+++ verifyInjectedCustomInteger, JsonNumber.class.CL: %s\n",
        JsonNumber.class.getClassLoader());
    System.out.printf("+++ customInteger.CL: %s\n",
        test.getClass().getClassLoader());
    Class[] ifaces = test.getClass().getInterfaces();
    for(Class iface : ifaces) {
        System.out.printf("%s: %s\n", iface, iface.getClassLoader());
    }
    JsonNumber customValue = JsonNumber.class.cast(test);
    if(customValue == null || customValue.isIntegral() == false) {
        msg = "customInteger value is null or not integral, FAIL";
    }
    else if(customValue.longValueExact() == value) {
        msg = "customInteger PASS";
        pass = true;
    }
    else {
        msg = String.format("customInteger: %d != %d", customValue, value);
    }
    JsonObject result = Json.createObjectBuilder()
        .add("pass", pass)
        .add("msg", msg)
        .build();
    return result;
}
 

import javax.json.JsonNumber; //導入方法依賴的package包/類
@Override
public boolean equals(Object obj) {
	if (this == obj) {
		return true;
	}
	if (!(obj instanceof JsonNumber)) {
		return false;
	}
	JsonNumber other = (JsonNumber)obj;
	if (other.isIntegral()) {
		return value == other.longValue();
	} else { 
		return false;
	}
}