Java JsonValue.ValueType方法代碼示例

import javax.json.JsonValue; //導入方法依賴的package包/類
/**
 * Looks up a {@link JsonValue} which is referenced by a given JSON pointer.
 * @param pointer the JSON pointer which refers to a {@link JsonValue}.
 * @return the {@link JsonValue} if found, {@code null} otherwise. 
 * @exception IllegalArgumentException if specified pointer is {@code null}.
 */
public JsonValue getValueByPointer(JsonPointer pointer) {
	if (pointer == null) {
		throw new IllegalArgumentException();
	}
	JsonValue current = getRootValue();
	for (Object token: pointer) {
		if (current == null) {
			break;
		}
		JsonValue.ValueType type = current.getValueType();
		if (type == JsonValue.ValueType.ARRAY) {
			if ((token instanceof Integer)) {
				int index = ((Integer)token).intValue();
				current = ((JsonArray)current).get(index);
			} else {
				current = null;
			}
		} else if (type == JsonValue.ValueType.OBJECT) {
			current = ((JsonObject)current).get(token);
		} else {
			break;
		}
	}
	return current;
}
 

import javax.json.JsonValue; //導入方法依賴的package包/類
private static void compareJsonValue(JsonValue actual, JsonValue expected) {
	assertNotNull(actual);
	assertNotNull(expected);
	assertThat(actual.getValueType(), is(expected.getValueType()));
	JsonValue.ValueType type = actual.getValueType();
	if (type == JsonValue.ValueType.OBJECT) {
		JsonObject actualObject = (JsonObject)actual;
		JsonObject expectedObject = (JsonObject)expected;
		assertThat(actualObject.size(), equalTo(expectedObject.size()));
		for (String key: actualObject.keySet()) {
			 compareJsonValue(actualObject.get(key), expectedObject.get(key));
		}
	} else if (type == JsonValue.ValueType.ARRAY) {
		JsonArray actualArray = (JsonArray)actual;
		JsonArray expectedArray = (JsonArray)expected;
		assertThat(actualArray.size(), equalTo(expectedArray.size()));
		for (int i = 0; i < actualArray.size(); i++) {
			compareJsonValue(actualArray.get(i), expectedArray.get(i));
		}
	} else {
		assertTrue(actual.equals(expected));
	}
}
 

import javax.json.JsonValue; //導入方法依賴的package包/類
/**
 * Create a {@link JsonString}.
 * <p>
 * This is here mainly to support {@link #createJsonValue(java.lang.String)} as the {@link Json} class does not provide a way of generating this.
 * <p>
 * @param s String
 * <p>
 * @return JsonString
 * <p>
 * @throws NullPointerException if s is null
 */
public static JsonString createJsonString( final String s )
{
    Objects.requireNonNull( s );
    return new JsonString()
    {

        @Override
        public String getString()
        {
            return s;
        }

        @Override
        public CharSequence getChars()
        {
            return s;
        }

        @Override
        public JsonValue.ValueType getValueType()
        {
            return JsonValue.ValueType.STRING;
        }

    };
}
 

import javax.json.JsonValue; //導入方法依賴的package包/類
/**
 * This method prints the value of the JSON data. If the value is a JSON object and key1 is provided, it will
 * only print the values of key1 and optionally key2. If key1 is null, it will recurse into the JSON object
 * and print all the nested structures.
 *
 * @param key specifies the key string of the JSON object, can be null if no associated key.
 * @param value specifies the JSON value.
 * @param level specifies the indentation level.
 * @param key1 specifies the first key.
 * @param key2 specifies the second key.
 * @param dataOut specifies the output print stream.
 */
private void printValue(String key, JsonValue value, int level, String key1, String key2, PrintStream dataOut)
{
    JsonValue.ValueType valueType = value.getValueType();

    switch (valueType)
    {
        case OBJECT:
            JsonObject obj = (JsonObject)value;
            printIndentation(level, dataOut);
            if (key1 != null)
            {
                dataOut.print(obj.get(key1));
                if (key2 != null)
                {
                    dataOut.println(": " + obj.get(key2));
                }
                else
                {
                    dataOut.println();
                }
            }
            else
            {
                if (key != null)
                {
                    dataOut.print(key + ": ");
                }
                dataOut.println("{");
                Iterator<String> iterator = obj.keySet().iterator();
                while (iterator.hasNext())
                {
                    String childKey = iterator.next();
                    printValue(childKey, obj.get(childKey), level + 1, key1, key2, dataOut);
                }
                printIndentation(level, dataOut);
                dataOut.println("}");
            }
            break;

        case ARRAY:
            printIndentation(level, dataOut);
            if (key != null)
            {
                dataOut.print(key + ": ");
            }
            dataOut.println("[");
            JsonArray array = (JsonArray)value;
            for (int i = 0; i < array.size(); i++)
            {
                printValue(null, array.get(i), level + 1, key1, key2, dataOut);
            }
            printIndentation(level, dataOut);
            dataOut.println("]");
            break;

        default:
            printIndentation(level, dataOut);
            if (key != null)
            {
                dataOut.print(key + ": ");
            }
            dataOut.println(value);
            break;
    }
}
 

import javax.json.JsonValue; //導入方法依賴的package包/類
public static JsonNumber createJsonNumber( BigDecimal d )
{
    return new JsonNumber()
    {
        @Override
        public boolean isIntegral()
        {
            return d.scale() == 0;
        }

        @Override
        public int intValue()
        {
            return d.intValue();
        }

        @Override
        public int intValueExact()
        {
            return d.intValueExact();
        }

        @Override
        public long longValue()
        {
            return d.longValue();
        }

        @Override
        public long longValueExact()
        {
            return d.longValueExact();
        }

        @Override
        public BigInteger bigIntegerValue()
        {
            return d.toBigInteger();
        }

        @Override
        public BigInteger bigIntegerValueExact()
        {
            return d.toBigIntegerExact();
        }

        @Override
        public double doubleValue()
        {
            return d.doubleValue();
        }

        @Override
        public BigDecimal bigDecimalValue()
        {
            return d;
        }

        @Override
        public JsonValue.ValueType getValueType()
        {
            return ValueType.NUMBER;
        }
    };
}