uk.co.real_logic.sbe.xml.XmlSchemaParser类的使用及代码示例

x33g5p2x  于2022-02-03 转载在 其他  
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本文整理了Java中uk.co.real_logic.sbe.xml.XmlSchemaParser类的一些代码示例，展示了XmlSchemaParser类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。XmlSchemaParser类的具体详情如下：
包路径：uk.co.real_logic.sbe.xml.XmlSchemaParser
类名称：XmlSchemaParser

XmlSchemaParser介绍

[英]Encapsulate the XML Schema parsing for SBE so that other representations may be used to generate independent representations.
[中]封装SBE的XML模式解析，以便可以使用其他表示来生成独立的表示。

代码示例

代码示例来源：origin: real-logic/simple-binary-encoding

private static void encodeSchema(final ByteBuffer byteBuffer) throws Exception
{
  final Path path = Paths.get("example-schema.xml");
  try (InputStream in = new BufferedInputStream(Files.newInputStream(path)))
  {
    final MessageSchema schema = XmlSchemaParser.parse(in, ParserOptions.DEFAULT);
    final Ir ir = new IrGenerator().generate(schema);
    try (IrEncoder irEncoder = new IrEncoder(byteBuffer, ir))
    {
      irEncoder.encode();
    }
  }
}

代码示例来源：origin: real-logic/simple-binary-encoding

/**
 * Construct a ValidValue given the XML node and the encodingType.
 *
 * @param node         that contains the validValue
 * @param encodingType for the enum
 */
public ValidValue(final Node node, final PrimitiveType encodingType)
{
  name = getAttributeValue(node, "name");
  description = getAttributeValueOrNull(node, "description");
  value = PrimitiveValue.parse(node.getFirstChild().getNodeValue(), encodingType);
  sinceVersion = Integer.parseInt(getAttributeValue(node, "sinceVersion", "0"));
  deprecated = Integer.parseInt(getAttributeValue(node, "deprecated", "0"));
  checkForValidName(node, name);
}

代码示例来源：origin: real-logic/simple-binary-encoding

document.setUserData(ERROR_HANDLER_KEY, errorHandler, null);
final Map<String, Type> typeByNameMap = findTypes(document, xPath);
errorHandler.checkIfShouldExit();
final Map<Long, Message> messageByIdMap = findMessages(document, xPath, typeByNameMap);
errorHandler.checkIfShouldExit();

代码示例来源：origin: real-logic/simple-binary-encoding

public MessageSchema(
  final Node schemaNode, final Map<String, Type> typeByNameMap, final Map<Long, Message> messageByIdMap)
{
  this.packageName = getAttributeValue(schemaNode, "package");
  this.description = getAttributeValueOrNull(schemaNode, "description");
  this.id = Integer.parseInt(getAttributeValue(schemaNode, "id"));
  this.version = Integer.parseInt(getAttributeValue(schemaNode, "version", "0"));
  this.semanticVersion = getAttributeValueOrNull(schemaNode, "semanticVersion");
  this.byteOrder = getByteOrder(getAttributeValue(schemaNode, "byteOrder", "littleEndian"));
  this.typeByNameMap = typeByNameMap;
  this.messageByIdMap = messageByIdMap;
  final String headerType = getAttributeValueOrNull(schemaNode, "headerType");
  this.headerType = null == headerType ? HEADER_TYPE_DEFAULT : headerType;
  Verify.present(typeByNameMap, this.headerType, "Message header");
  ((CompositeType)typeByNameMap.get(this.headerType)).checkForWellFormedMessageHeader(schemaNode);
}

代码示例来源：origin: real-logic/simple-binary-encoding

/**
 * Construct a new Type from XML Schema. Called by subclasses to mostly set common fields
 *
 * @param node           from the XML Schema Parsing
 * @param givenName      of this node, if null then the attributed name will be used.
 * @param referencedName of the type when created from a ref in a composite.
 */
public Type(final Node node, final String givenName, final String referencedName)
{
  if (null == givenName)
  {
    name = getAttributeValue(node, "name");
  }
  else
  {
    name = givenName;
  }
  this.referencedName = referencedName;
  presence = Presence.get(getAttributeValue(node, "presence", "required"));
  description = getAttributeValueOrNull(node, "description");
  sinceVersion = Integer.parseInt(getAttributeValue(node, "sinceVersion", "0"));
  deprecated = Integer.parseInt(getAttributeValue(node, "deprecated", "0"));
  semanticType = getAttributeValueOrNull(node, "semanticType");
  offsetAttribute = Integer.parseInt(getAttributeValue(node, "offset", "-1"));
}

代码示例来源：origin: real-logic/simple-binary-encoding

private Field parseGroupField(final NodeList nodeList, final int nodeIndex) throws XPathExpressionException
  final String dimensionTypeName = getAttributeValue(node, "dimensionType", "groupSizeEncoding");
  Type dimensionType = typeByNameMap.get(dimensionTypeName);
  if (dimensionType == null)
    handleError(node, "could not find dimensionType: " + dimensionTypeName);
    handleError(node, "dimensionType should be a composite type: " + dimensionTypeName);
    dimensionType = null;
    .name(getAttributeValue(node, "name"))
    .description(getAttributeValueOrNull(node, "description"))
    .id(Integer.parseInt(getAttributeValue(node, "id")))
    .blockLength(Integer.parseInt(getAttributeValue(node, "blockLength", "0")))
    .sinceVersion(Integer.parseInt(getAttributeValue(node, "sinceVersion", "0")))
    .deprecated(Integer.parseInt(getAttributeValue(node, "deprecated", "0")))
    .dimensionType((CompositeType)dimensionType)
    .build();
  XmlSchemaParser.checkForValidName(node, field.name());

代码示例来源：origin: real-logic/simple-binary-encoding

!semanticType.equals(type.semanticType()))
  handleError(node, "Mismatched semanticType on type and field: " + name);
checkForValidName(node, name);
    handleError(node, "valueRef not set for constant enum");
        handleError(node, "valueRef does not match field type: " + valueRef);
      handleError(node, "valueRef does not match field type: " + valueRef);
    handleError(node, "valueRef for enum name not found: " + valueRefType);

代码示例来源：origin: real-logic/simple-binary-encoding

primitiveType = PrimitiveType.get(getAttributeValue(node, "primitiveType"));
final String lengthAttr = getAttributeValueOrNull(node, "length");
length = Integer.parseInt(null == lengthAttr ? "1" : lengthAttr);
varLen = Boolean.parseBoolean(getAttributeValue(node, "variableLength", "false"));
valueRef = getAttributeValueOrNull(node, "valueRef");
    handleError(node, "valueRef format not valid (enum-name.valid-value-name): " + valueRef);
    handleError(node, "present must be constant when valueRef is set: " + valueRef);
  characterEncoding = getAttributeValue(node, "characterEncoding", "US-ASCII").trim().toUpperCase();
  final String characterEncoding = getAttributeValueOrNull(node, "characterEncoding");
  this.characterEncoding = characterEncoding == null ? null : characterEncoding.trim().toUpperCase();
      handleError(node, "type has declared presence as \"constant\" but XML node has no data");
      constValue = null;
final String minValStr = getAttributeValueOrNull(node, "minValue");
minValue = minValStr != null ? PrimitiveValue.parse(minValStr, primitiveType) : null;
final String maxValStr = getAttributeValueOrNull(node, "maxValue");
maxValue = maxValStr != null ? PrimitiveValue.parse(maxValStr, primitiveType) : null;
final String nullValStr = getAttributeValueOrNull(node, "nullValue");
if (nullValStr != null)
    handleWarning(node, "nullValue set, but presence is not optional");

代码示例来源：origin: real-logic/simple-binary-encoding

private Field parseField(final NodeList nodeList, final int nodeIndex)
{
  final Node node = nodeList.item(nodeIndex);
  final String typeName = getAttributeValue(node, "type");
  final Type fieldType = typeByNameMap.get(typeName);
  if (fieldType == null)
  {
    handleError(node, "could not find type: " + typeName);
  }
  final Field field = new Field.Builder()
    .name(getAttributeValue(node, "name"))
    .description(getAttributeValueOrNull(node, "description"))
    .id(Integer.parseInt(getAttributeValue(node, "id")))
    .offset(Integer.parseInt(getAttributeValue(node, "offset", "0")))
    .semanticType(getAttributeValueOrNull(node, "semanticType"))
    .presence(getPresence(node, fieldType))
    .valueRef(getAttributeValueOrNull(node, "valueRef"))
    .sinceVersion(Integer.parseInt(getAttributeValue(node, "sinceVersion", "0")))
    .deprecated(Integer.parseInt(getAttributeValue(node, "deprecated", "0")))
    .epoch(getAttributeValueOrNull(node, "epoch"))
    .timeUnit(getAttributeValueOrNull(node, "timeUnit"))
    .type(fieldType)
    .build();
  field.validate(node, typeByNameMap);
  return field;
}

代码示例来源：origin: real-logic/simple-binary-encoding

XmlSchemaParser.handleError(node, "composite for variable length data encoding must have \"length\"");
  if (!isUnsigned(primitiveType))
    XmlSchemaParser.handleError(node, "\"length\" must be unsigned type");
    XmlSchemaParser.handleWarning(node, "\"length\" should be UINT8, UINT16, or UINT32");
if ("optional".equals(getAttributeValueOrNull(node, "presence")))
  XmlSchemaParser.handleError(
    node, "composite for variable length data encoding cannot have presence=\"optional\"");
  XmlSchemaParser.handleError(node, "composite for variable length data encoding must have \"varData\"");

代码示例来源：origin: real-logic/simple-binary-encoding

private static void addTypeWithNameCheck(final Map<String, Type> typeByNameMap, final Type type, final Node node)
{
  if (typeByNameMap.get(type.name()) != null)
  {
    handleWarning(node, "type already exists for name: " + type.name());
  }
  checkForValidName(node, type.name());
  typeByNameMap.put(type.name(), type);
}

代码示例来源：origin: real-logic/simple-binary-encoding

private static void validateBlockLength(
  final Node node, final long specifiedBlockLength, final long computedBlockLength)
{
  if (0 != specifiedBlockLength && computedBlockLength > specifiedBlockLength)
  {
    final String msg = "specified blockLength provides insufficient space " +
      computedBlockLength + " > " + specifiedBlockLength;
    handleError(node, msg);
  }
}

代码示例来源：origin: real-logic/simple-binary-encoding

/**
 * Scan XML for all message definitions and save in map
 *
 * @param document      for the XML parsing
 * @param xPath         for XPath expression reuse
 * @param typeByNameMap to use for Type objects
 * @return {@link java.util.Map} of schemaId to Message
 * @throws Exception on parsing error.
 */
public static Map<Long, Message> findMessages(
  final Document document, final XPath xPath, final Map<String, Type> typeByNameMap) throws Exception
{
  final Map<Long, Message> messageByIdMap = new HashMap<>();
  final ObjectHashSet<String> distinctNames = new ObjectHashSet<>();
  forEach((NodeList)xPath.compile(MESSAGE_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
    (node) -> addMessageWithIdCheck(distinctNames, messageByIdMap, new Message(node, typeByNameMap), node));
  return messageByIdMap;
}

代码示例来源：origin: real-logic/simple-binary-encoding

typeByNameMap.put("double", new EncodedDataType("double", REQUIRED, null, null, DOUBLE, 1, false));
forEach((NodeList)xPath.compile(TYPE_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
  (node) -> addTypeWithNameCheck(typeByNameMap, new EncodedDataType(node), node));
forEach((NodeList)xPath.compile(COMPOSITE_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
  (node) -> addTypeWithNameCheck(typeByNameMap, new CompositeType(node), node));
forEach((NodeList)xPath.compile(ENUM_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
  (node) -> addTypeWithNameCheck(typeByNameMap, new EnumType(node), node));
forEach((NodeList)xPath.compile(SET_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
  (node) -> addTypeWithNameCheck(typeByNameMap, new SetType(node), node));

代码示例来源：origin: real-logic/simple-binary-encoding

/**
 * Handle an error condition as consequence of parsing.
 *
 * @param node that is the context of the warning.
 * @param msg  associated with the error.
 */
public static void handleError(final Node node, final String msg)
{
  final ErrorHandler handler = (ErrorHandler)node.getOwnerDocument().getUserData(ERROR_HANDLER_KEY);
  if (handler == null)
  {
    throw new IllegalStateException("ERROR: " + formatLocationInfo(node) + msg);
  }
  else
  {
    handler.error(formatLocationInfo(node) + msg);
  }
}

代码示例来源：origin: real-logic/simple-binary-encoding

XmlSchemaParser.handleError(node, "composite for message header must have \"blockLength\"");
XmlSchemaParser.handleError(node, "\"blockLength\" must be unsigned");
XmlSchemaParser.handleWarning(node, "\"blockLength\" should be UINT16");
XmlSchemaParser.handleError(node, "composite for message header must have \"templateId\"");
XmlSchemaParser.handleWarning(node, "\"templateId\" should be UINT16");
XmlSchemaParser.handleError(node, "composite for message header must have \"schemaId\"");
XmlSchemaParser.handleWarning(node, "\"schemaId\" should be UINT16");
XmlSchemaParser.handleError(node, "composite for message header must have \"version\"");
XmlSchemaParser.handleWarning(node, "\"version\" should be UINT16");

代码示例来源：origin: real-logic/simple-binary-encoding

final String encodingTypeStr = getAttributeValue(node, "encodingType");
    else if (Integer.parseInt(getAttributeValue(encodingTypeNode, "length", "1")) != 1)
      encodingType = PrimitiveType.get(getAttributeValue(encodingTypeNode, "primitiveType"));
    handleWarning(node, "Choice value already defined: " + c.primitiveValue());
    handleWarning(node, "Choice already exists for name: " + c.name());

代码示例来源：origin: real-logic/simple-binary-encoding

final String refName = XmlSchemaParser.getAttributeValue(subTypeNode, "name");
final String refTypeName = XmlSchemaParser.getAttributeValue(subTypeNode, "type");
final int refOffset = Integer.parseInt(XmlSchemaParser.getAttributeValue(subTypeNode, "offset", "-1"));
final Node refTypeNode = (Node)xPath.compile(
  "/*[local-name() = 'messageSchema']/types/*[@name='" + refTypeName + "']")
  XmlSchemaParser.handleError(subTypeNode, "ref type not found: " + refTypeName);
    XmlSchemaParser.handleError(refTypeNode, "ref types cannot create circular dependencies.");
    throw new IllegalStateException("ref types cannot create circular dependencies");

代码示例来源：origin: real-logic/simple-binary-encoding

private static String formatLocationInfo(final Node node)
{
  final Node parentNode = node.getParentNode();
  return "at " +
    "<" + parentNode.getNodeName() +
    (getAttributeValueOrNull(parentNode, "name") == null ?
      ">" : (" name=\"" + getAttributeValueOrNull(parentNode, "name") + "\"> ")) +
    "<" + node.getNodeName() +
    (getAttributeValueOrNull(node, "name") == null ?
      ">" : (" name=\"" + getAttributeValueOrNull(node, "name") + "\"> "));
}

代码示例来源：origin: uk.co.real-logic/sbe

/**
 * Scan XML for all message definitions and save in map
 *
 * @param document      for the XML parsing
 * @param xPath         for XPath expression reuse
 * @param typeByNameMap to use for Type objects
 * @return {@link java.util.Map} of schemaId to Message
 * @throws Exception on parsing error.
 */
public static Map<Long, Message> findMessages(
  final Document document, final XPath xPath, final Map<String, Type> typeByNameMap)
  throws Exception
{
  final Map<Long, Message> messageByIdMap = new HashMap<>();
  forEach((NodeList)xPath.compile(MESSAGE_XPATH_EXPR).evaluate(document, XPathConstants.NODESET),
      new NodeFunction()
      {
        public void execute(final Node node) throws XPathExpressionException
        {
          addMessageWithIdCheck(messageByIdMap, new Message(node, typeByNameMap), node);
        }
      });
  return messageByIdMap;
}

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