com.thoughtworks.xstream.mapper.Mapper类的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中com.thoughtworks.xstream.mapper.Mapper类的一些代码示例，展示了Mapper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。Mapper类的具体详情如下：
包路径：com.thoughtworks.xstream.mapper.Mapper
类名称：Mapper

Mapper介绍

暂无

代码示例

代码示例来源：origin: geoserver/geoserver

protected static void marshalComparator(
    Mapper mapper,
    Comparator comparator,
    HierarchicalStreamWriter writer,
    MarshallingContext context) {
  if (comparator != null) {
    writer.startNode("comparator");
    writer.addAttribute(
        mapper.aliasForSystemAttribute("class"),
        mapper.serializedClass(comparator.getClass()));
    context.convertAnother(comparator);
    writer.endNode();
  }
}

代码示例来源：origin: jenkinsci/jenkins

protected Object instantiateNewInstance(HierarchicalStreamReader reader, UnmarshallingContext context) {
  String readResolveValue = reader.getAttribute(mapper.aliasForAttribute("resolves-to"));
  Class type = readResolveValue != null ? mapper.realClass(readResolveValue) : context.getRequiredType();
  Object currentObject = context.currentObject();
  if (currentObject != null) {
    if (type.isInstance(currentObject))
      return currentObject;
  }
  return reflectionProvider.newInstance(type);
}

代码示例来源：origin: jenkinsci/jenkins

private void writeField(String fieldName, String aliasName, Class fieldType, Class definedIn, Object newObj) {
  try {
    if (!mapper.shouldSerializeMember(definedIn, aliasName)) {
      return;
    }
    ExtendedHierarchicalStreamWriterHelper.startNode(writer, mapper.serializedMember(definedIn, aliasName), fieldType);
    Class actualType = newObj.getClass();
    Class defaultType = mapper.defaultImplementationOf(fieldType);
    if (!actualType.equals(defaultType)) {
      String serializedClassName = mapper.serializedClass(actualType);
      if (!serializedClassName.equals(mapper.serializedClass(defaultType))) {
        writer.addAttribute(mapper.aliasForSystemAttribute("class"), serializedClassName);
      }
    }
    if (seenFields.contains(aliasName)) {
      writer.addAttribute(mapper.aliasForAttribute("defined-in"), mapper.serializedClass(definedIn));
    }
    Field field = reflectionProvider.getField(definedIn,fieldName);
    marshallField(context, newObj, field);
    writer.endNode();
  } catch (RuntimeException e) {
    // intercept an exception so that the stack trace shows how we end up marshalling the object in question
    throw new RuntimeException("Failed to serialize "+definedIn.getName()+"#"+fieldName+" for "+source.getClass(),e);
  }
}

代码示例来源：origin: jenkinsci/jenkins

private Class determineWhichClassDefinesField(HierarchicalStreamReader reader) {
  String definedIn = reader.getAttribute(mapper.aliasForAttribute("defined-in"));
  return definedIn == null ? null : mapper.realClass(definedIn);
}

代码示例来源：origin: jenkinsci/jenkins

public void visit(String fieldName, Class type, Class definedIn, Object value) {
    SingleValueConverter converter = mapper.getConverterFromItemType(fieldName, type, definedIn);
    if (converter == null) converter = mapper.getConverterFromItemType(fieldName, type);
    if (converter == null) converter = mapper.getConverterFromItemType(type);
    if (converter != null) {
      if (value != null) {
        final String str = converter.toString(value);
        if (str != null) {
          writer.addAttribute(mapper.aliasForAttribute(fieldName), str);
        }
      }
      seenAsAttributes.add(fieldName);
    }
  }
});

代码示例来源：origin: com.thoughtworks.xstream/xstream

@Override
public Object unmarshal(final HierarchicalStreamReader reader, final UnmarshallingContext context) {
  final boolean oldFormat = "custom".equals(reader.getAttribute(mapper.aliasForSystemAttribute("serialization")));
  if (oldFormat) {
    reader.moveDown();
    reader.moveDown();
  }
  final Map<String, Long> elements = new HashMap<>();
  while (reader.hasMoreChildren()) {
    reader.moveDown();
    final String name = reader.getNodeName();
    elements.put(oldFormat ? name : mapper.realMember(ValueRange.class, name), Long.valueOf(reader.getValue()));
    reader.moveUp();
  }
  if (oldFormat) {
    reader.moveUp();
    reader.moveUp();
  }
  return ValueRange.of(elements.get("minSmallest").longValue(), elements.get("minLargest").longValue(), elements
    .get("maxSmallest")
    .longValue(), elements.get("maxLargest").longValue());
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

InvocationHandler handler = null;
Class handlerType = null;
while (reader.hasMoreChildren()) {
  reader.moveDown();
  String elementName = reader.getNodeName();
  if (elementName.equals("interface")) {
    interfaces.add(mapper.realClass(reader.getValue()));
  } else if (elementName.equals("handler")) {
    String attributeName = mapper.aliasForSystemAttribute("class");
    if (attributeName != null) {
      handlerType = mapper.realClass(reader.getAttribute(attributeName));
      break;
  throw new ConversionException("No InvocationHandler specified for dynamic proxy");
  proxy = Proxy.newProxyInstance(classLoaderReference.getReference(), interfacesAsArray, DUMMY);
handler = (InvocationHandler) context.convertAnother(proxy, handlerType);
reader.moveUp();
if (HANDLER != null) {

代码示例来源：origin: com.thoughtworks.xstream/xstream

.realMember(resultType, mapper.attributeForAlias(attrAlias));
Field field = reflectionProvider.getFieldOrNull(resultType, attrName);
if (field != null && shouldUnmarshalField(field)) {
  Class classDefiningField = field.getDeclaringClass();
  if (!mapper.shouldSerializeMember(classDefiningField, attrName)) {
    continue;
  SingleValueConverter converter = mapper.getConverterFromAttribute(
    classDefiningField, attrName, field.getType());
  Class type = field.getType();
  if (converter != null) {
    Object value = converter.fromString(reader.getAttribute(attrAlias));
    if (type.isPrimitive()) {
      type = Primitives.box(type);
  ? resultType
  : explicitDeclaringClass;
String fieldName = mapper.realMember(fieldDeclaringClass, originalNodeName);
Mapper.ImplicitCollectionMapping implicitCollectionMapping = mapper
  .getImplicitCollectionDefForFieldName(fieldDeclaringClass, fieldName);
final Object value;
String implicitFieldName = null;
    Class itemType = mapper.getItemTypeForItemFieldName(fieldDeclaringClass, fieldName);
    if (itemType != null) {
      String classAttribute = HierarchicalStreams.readClassAttribute(
        reader, mapper);
      if (classAttribute != null) {
        type = mapper.realClass(classAttribute);

代码示例来源：origin: jenkinsci/jenkins

if (result instanceof Saveable && context.get("Saveable") == null)
  context.put("Saveable", result);
  String attrName = mapper.attributeForAlias(attrAlias);
  Class classDefiningField = determineWhichClassDefinesField(reader);
  boolean fieldExistsInClass = fieldDefinedInClass(result, attrName);
  if (fieldExistsInClass) {
    Field field = reflectionProvider.getField(result.getClass(), attrName);
    SingleValueConverter converter = mapper.getConverterFromAttribute(field.getDeclaringClass(),attrName,field.getType());
    Class type = field.getType();
    if (converter == null) {
      converter = mapper.getConverterFromItemType(type);
        throw new ConversionException("Cannot convert type " + value.getClass().getName() + " to type " + type.getName());
      reflectionProvider.writeField(result, attrName, value, classDefiningField);
      seenFields.add(classDefiningField, attrName);
while (reader.hasMoreChildren()) {
  reader.moveDown();
    String fieldName = mapper.realMember(result.getClass(), reader.getNodeName());
    for (Class<?> concrete = result.getClass(); concrete != null; concrete = concrete.getSuperclass()) {
    boolean implicitCollectionHasSameName = mapper.getImplicitCollectionDefForFieldName(result.getClass(), reader.getNodeName()) != null;
      value = context.convertAnother(result, type);

代码示例来源：origin: com.thoughtworks.xstream/xstream

public Map readFieldsFromStream() {
  final Map fields = new HashMap();
  reader.moveDown();
  if (reader.getNodeName().equals(ELEMENT_FIELDS)) {
      String name = reader.getAttribute(ATTRIBUTE_NAME);
      Class type = mapper.realClass(reader.getAttribute(ATTRIBUTE_CLASS));
      Object value = context.convertAnother(result, type);
      fields.put(name, value);
      reader.moveUp();
    while (reader.hasMoreChildren()) {
      reader.moveDown();
      String name = mapper.realMember(currentType[0], reader.getNodeName());
      if (mapper.shouldSerializeMember(currentType[0], name)) {
    String classAttribute = HierarchicalStreams.readClassAttribute(reader, mapper);
        Class type;
        if (classAttribute != null) {
          type = mapper.realClass(classAttribute);
        } else {
          ObjectStreamField field = objectStreamClass.getField(name);
        Object value = context.convertAnother(result, type);
        fields.put(name, value);
    throw new ConversionException("Expected <" + ELEMENT_FIELDS + "/> or <" +
        ELEMENT_DEFAULT + "/> element when calling ObjectInputStream.readFields()");

代码示例来源：origin: com.thoughtworks.xstream/xstream

public void writeFieldsToStream(Map fields) {
  ObjectStreamClass objectStreamClass = ObjectStreamClass.lookup(currentType[0]);
  writer.startNode(ELEMENT_DEFAULT);
  for (Iterator iterator = fields.keySet().iterator(); iterator.hasNext();) {
    String name = (String) iterator.next();
    if (!mapper.shouldSerializeMember(currentType[0], name)) {
      continue;
    }
    ObjectStreamField field = objectStreamClass.getField(name);
    Object value = fields.get(name);
    if (field == null) {
      throw new MissingFieldException(value.getClass().getName(), name);
    }
    if (value != null) {
      ExtendedHierarchicalStreamWriterHelper.startNode(
        writer, mapper.serializedMember(source.getClass(), name),
        value.getClass());
      if (field.getType() != value.getClass() && !field.getType().isPrimitive()) {
        String attributeName = mapper.aliasForSystemAttribute(ATTRIBUTE_CLASS);
        if (attributeName != null) {
          writer.addAttribute(attributeName, mapper.serializedClass(value.getClass()));
        }
      }
      context.convertAnother(value);
      writer.endNode();
    }
  }
  writer.endNode();
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

public void defaultReadObject() {
  if (serializationMembers.getSerializablePersistentFields(currentType[0]) != null) {
    readFieldsFromStream();
    return;
  }
  if (!reader.hasMoreChildren()) {
    return;
  }
  reader.moveDown();
  if (!reader.getNodeName().equals(ELEMENT_DEFAULT)) {
    throw new ConversionException("Expected <" + ELEMENT_DEFAULT + "/> element in readObject() stream");
  }
  while (reader.hasMoreChildren()) {
    reader.moveDown();
    String fieldName = mapper.realMember(currentType[0], reader.getNodeName());
    if (mapper.shouldSerializeMember(currentType[0], fieldName)) {
      String classAttribute = HierarchicalStreams.readClassAttribute(reader, mapper);
      final Class type;
      if (classAttribute != null) {
        type = mapper.realClass(classAttribute);
      } else {
        type = mapper.defaultImplementationOf(reflectionProvider.getFieldType(result, fieldName, currentType[0]));
      }
      Object value = context.convertAnother(result, type);
      reflectionProvider.writeField(result, fieldName, value, currentType[0]);
    }
    reader.moveUp();
  }
  reader.moveUp();
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

public void writeToStream(final Object object) {
  if (object == null) {
    writer.startNode("null");
    writer.endNode();
  } else {
    ExtendedHierarchicalStreamWriterHelper.startNode(writer, mapper.serializedClass(object.getClass()), object.getClass());
    context.convertAnother(object);
    writer.endNode();
  }
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
    String methodName = null;
    String declaringClassName = null;
    
    while((methodName == null || declaringClassName == null) && reader.hasMoreChildren()) {
      reader.moveDown();
      
      if (reader.getNodeName().equals("name")) {
        methodName = reader.getValue();
      } else if (reader.getNodeName().equals("clazz")) {
        declaringClassName = reader.getValue();
      }
      reader.moveUp();
    }
    
    Class declaringClass = (Class)javaClassConverter.fromString(declaringClassName);
    try {
      return declaringClass.getDeclaredField(mapper.realMember(declaringClass, methodName));
    } catch (NoSuchFieldException e) {
      throw new ConversionException(e);
    }
  }
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

String attributeName = mapper.aliasForSystemAttribute(ATTRIBUTE_SERIALIZATION);
if (attributeName != null && !ATTRIBUTE_VALUE_CUSTOM.equals(reader.getAttribute(attributeName))) {
  throw new ConversionException("Cannot deserialize object with new readObject()/writeObject() methods");
        reader.moveDown();
        if (!reader.getNodeName().equals(ELEMENT_FIELD)) {
          throw new ConversionException("Expected <" + ELEMENT_FIELD + "/> element inside <" + ELEMENT_FIELD + "/>");
      throw new ConversionException("Expected <" + ELEMENT_FIELDS + "/> or <" +
          ELEMENT_DEFAULT + "/> element when calling ObjectInputStream.readFields()");
while (reader.hasMoreChildren()) {
  reader.moveDown();
  String nodeName = reader.getNodeName();
  if (nodeName.equals(ELEMENT_UNSERIALIZABLE_PARENTS)) {
  String classAttribute = HierarchicalStreams.readClassAttribute(reader, mapper);
    if (classAttribute == null) {
      currentType[0] = mapper.defaultImplementationOf(mapper.realClass(nodeName));
    } else {
      currentType[0] = mapper.realClass(classAttribute);

代码示例来源：origin: com.thoughtworks.xstream/xstream

private void write(final String fieldName, final long value, final HierarchicalStreamWriter writer) {
    ExtendedHierarchicalStreamWriterHelper.startNode(writer, mapper.serializedMember(ValueRange.class, fieldName),
      long.class);
    writer.setValue(String.valueOf(value));
    writer.endNode();
  }
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

final Iterator it = reader.getAttributeNames();
systemAttributes.add(mapper.aliasForSystemAttribute("class"));
  final String fieldName = mapper.realMember(resultType, attrName);
  final Field field = reflectionProvider.getFieldOrNull(resultType, fieldName);
  if (field != null) {
    if (Modifier.isTransient(field.getModifiers())) {
    final Class declaringClass = field.getDeclaringClass();
    ConverterMatcher converter = UseAttributeForEnumMapper.isEnum(type)
      ? (ConverterMatcher)enumMapper.getConverterFromItemType(null, type, null)
      : (ConverterMatcher)mapper.getLocalConverter(declaringClass, fieldName);
    if (converter == null) {
      converter = lookup.lookupConverterForType(type);
    .readClassAttribute(reader, mapper);
  if (classAttribute != null) {
    type = mapper.realClass(classAttribute);
  } else {
    type = mapper.defaultImplementationOf(reflectionProvider.getFieldType(
      result, fieldName, classDefiningField));
  final Object value = context.convertAnother(
    result, type,
    mapper.getLocalConverter(field.getDeclaringClass(), field.getName()));

代码示例来源：origin: com.thoughtworks.xstream/xstream

public Object unmarshal(final HierarchicalStreamReader reader, final UnmarshallingContext context) {
  final Object result = instantiateNewInstance(context);
  final Set seenProperties = new HashSet() {
    public boolean add(Object e) {
      if (!super.add(e)) {
        throw new DuplicatePropertyException(((FastField)e).getName());
      }
      return true;
    }
  };
  Class resultType = result.getClass();
  while (reader.hasMoreChildren()) {
    reader.moveDown();
    String propertyName = mapper.realMember(resultType, reader.getNodeName());
    if (mapper.shouldSerializeMember(resultType, propertyName)) {
      boolean propertyExistsInClass = beanProvider.propertyDefinedInClass(propertyName, resultType);

      if (propertyExistsInClass) {
        Class type = determineType(reader, result, propertyName);
        Object value = context.convertAnother(result, type);
        beanProvider.writeProperty(result, propertyName, value);
        seenProperties.add(new FastField(resultType, propertyName));
      } else if (!mapper.isIgnoredElement(propertyName)) {
        throw new MissingFieldException(resultType.getName(), propertyName);
      }
    }
    reader.moveUp();
  }
  return result;
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

private void writeField(String propertyName, Class fieldType, Object newObj) {
  Class actualType = newObj.getClass();
  Class defaultType = mapper.defaultImplementationOf(fieldType);
  String serializedMember = mapper.serializedMember(source.getClass(), propertyName);
  ExtendedHierarchicalStreamWriterHelper.startNode(writer, serializedMember, actualType);
  if (!actualType.equals(defaultType) && classAttributeName != null) {
    writer.addAttribute(classAttributeName, mapper.serializedClass(actualType));
  }
  context.convertAnother(newObj);
  writer.endNode();
}

代码示例来源：origin: com.thoughtworks.xstream/xstream

public Object unmarshal(final HierarchicalStreamReader reader, final UnmarshallingContext context) {
  final List list = new ArrayList();
  while (reader.hasMoreChildren()) {
    reader.moveDown();
    final Object item;
    final String className = HierarchicalStreams.readClassAttribute(reader, mapper);
    final Class itemType = className == null ? arrayType.getComponentType() : mapper.realClass(className);
    if (Mapper.Null.class.equals(itemType)) {
      item = null;
    } else {
      item = context.convertAnother(null, itemType);
    }
    list.add(item);
    reader.moveUp();
  }
  final Object array = Array.newInstance(arrayType.getComponentType(), list.size());
  for (int i = 0; i < list.size(); ++i) {
    Array.set(array, i, list.get(i));
  }
  return array;
}

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