Java Code Examples for com.jstarcraft.core.common.conversion.ConversionUtility#convert()

/**
 * 将内容转换为消息体
 * 
 * @param inputValue
 * @return
 */
MessageBody getMessageBody(Map<Byte, ContentCodec> codecs, Object inputValue) {
    try {
        if (inputValue != null) {
            Class<?> clazz = inputValue.getClass();
            if (Collection.class.isAssignableFrom(clazz)) {
                Collection<?> inputValues = (Collection<?>) inputValue;
                return getMessageBody(codecs, inputValues.toArray());
            }
        }
        Object content = ConversionUtility.convert(inputValue, getContentType());
        MessageFormat format = MessageFormat.fromByte(contentFormat);
        ContentCodec codec = codecs.get(format.getMark());
        byte[] data = codec.encode(getContentType(), content);
        return MessageBody.instanceOf(MessageFormat.isZip(contentFormat), format, data);
    } catch (Exception exception) {
        throw new IllegalArgumentException(exception);
    }
}
 

/**
 * 根据指定消息与会话转化为输入值
 * 
 * @param message
 * @param session
 * @return
 */
Object[] getInputValues(Map<Byte, ContentCodec> codecs, CommunicationMessage message, CommunicationSession<?> session) {
    Type inputType = getInputType();
    MessageBody body = message.getBody();
    ContentCodec codec = codecs.get(body.getType().getMark());
    Object content = codec.decode(getContentType(), body.getContent());
    if (void.class.equals(inputType) && inputVariables.length == 0) {
        if (content != null) {
            throw new IllegalArgumentException();
        }
        return new Object[] {};
    }
    content = ConversionUtility.convert(content, inputType);
    Object[] values = new Object[inputVariables.length];
    for (int cursor = 0, size = inputVariables.length; cursor < size; cursor++) {
        values[cursor] = inputVariables[cursor].getValue(content, message, session);
    }
    return values;
}
 

@Override
public <E> Iterator<E> iterator(Class<E> clazz, InputStream stream) {
    // 实例列表
    HashMap<Object, E> instanceObjects = new HashMap<>();
    try {
        Properties properties = new Properties();
        properties.load(stream);
        Constructor<E> constructor = clazz.getDeclaredConstructor();
        ReflectionUtility.makeAccessible(constructor);

        Field storageId = ReflectionUtility.uniqueField(clazz, ResourceId.class);
        storageId.setAccessible(true);

        TreeMap<?, ?> keyValues = new TreeMap<>(properties);
        for (Entry<?, ?> keyValue : keyValues.entrySet()) {
            LinkedList<String> fieldNames = new LinkedList<>(Arrays.asList(String.class.cast(keyValue.getKey()).split(dot)));
            String fieldName = fieldNames.pollFirst();
            String fieldValue = String.class.cast(keyValue.getValue());
            Object instanceId = ConversionUtility.convert(fieldName, storageId.getGenericType());
            E instanceObject = instanceObjects.get(instanceId);
            if (instanceObject == null) {
                instanceObject = constructor.newInstance();
                storageId.set(instanceObject, instanceId);
                instanceObjects.put(instanceId, instanceObject);
            }
            if (fieldNames.isEmpty()) {
                continue;
            } else {
                fieldName = fieldNames.pollFirst();
                process(instanceObject, clazz, fieldName, fieldNames, fieldValue);
            }
        }
        return instanceObjects.values().iterator();
    } catch (Exception exception) {
        throw new StorageException("遍历Properties异常", exception);
    }
}
 

/**
 * 根据指定消息与会话转化为输出值
 * 
 * @param message
 * @param session
 * @return
 */
Object getOutputValue(Map<Byte, ContentCodec> codecs, CommunicationMessage message, CommunicationSession<?> session) {
    Type outputType = getOutputType();
    MessageBody body = message.getBody();
    ContentCodec codec = codecs.get(body.getType().getMark());
    Object content = codec.decode(getContentType(), body.getContent());
    if (void.class.equals(outputType)) {
        if (content != null) {
            throw new IllegalArgumentException();
        }
        return null;
    }
    content = ConversionUtility.convert(content, outputType);
    return outputVariable.getValue(content, message, session);
}
 

private void set(Object instance, String content) throws Exception {
    Object value = ConversionUtility.convert(content, field.getGenericType());
    field.set(instance, value);
}
 

@Override
public <K extends Comparable, I, T extends IdentityObject<K>> Map<K, I> queryIdentities(Class<T> clazz, String name, StorageCondition<I> condition) {
	try {
		Neo4jMetadata metadata = metadatas.get(clazz);
		HashMap<String, Object> parameters = new HashMap<>();
		StringBuilder buffer = new StringBuilder(INDEX_2_ID_MAP_BEGIN);
		ConditionType type = condition.getType();
		I[] values = condition.getValues();
		switch (type) {
		case All:
			break;
		case Between:
			buffer.append(BETWEEN_CONDITION);
			break;
		case Equal:
			buffer.append(EQUAL_CONDITION);
			break;
		case Higher:
			buffer.append(HIGHER_CONDITION);
			break;
		case In:
			StringBuilder string = new StringBuilder();
			for (int index = 1, size = values.length - 1; index <= size; index++) {
				string.append(", {");
				string.append(index);
				string.append("}");
			}
			buffer.append(StringUtility.format(IN_CONDITION, name, string.toString()));
			break;
		case Lower:
			buffer.append(LOWER_CONDITION);
			break;
		case Unequal:
			buffer.append(UNEQUAL_CONDITION);
			break;
		}
		buffer.append(StringUtility.format(INDEX_2_ID_MAP_END, metadata.getPrimaryName(), name));
		String cql = buffer.toString();
		cql = StringUtility.format(cql, metadata.getOrmName(), name, name);
		for (int index = 0; index < values.length; index++) {
			parameters.put(String.valueOf(index), values[index]);
		}
		Iterable<Map<String, Object>> keyValues = template.query(cql, parameters);
		Map<K, I> map = new HashMap<>();
		for (Map<String, Object> keyValue : keyValues) {
			Object key = keyValue.get("key");
			Object value = keyValue.get("value");
			key = ConversionUtility.convert(key, metadata.getFields().get(metadata.getPrimaryName()));
			value = ConversionUtility.convert(value, metadata.getFields().get(name));
			map.put((K) key, (I) value);
		}
		return map;
	} finally {
		template.clear();
	}
}