Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Sys / System / Configuration / HandlerBase.cs / 4 / HandlerBase.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Globalization; using System.Xml; internal class HandlerBase { private HandlerBase() { } // // XML Attribute Helpers // private static XmlNode GetAndRemoveAttribute(XmlNode node, string attrib, bool fRequired) { XmlNode a = node.Attributes.RemoveNamedItem(attrib); // If the attribute is required and was not present, throw if (fRequired && a == null) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_missing_required_attribute, attrib, node.Name), node); } return a; } private static XmlNode GetAndRemoveStringAttributeInternal(XmlNode node, string attrib, bool fRequired, ref string val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) val = a.Value; return a; } internal static XmlNode GetAndRemoveStringAttribute(XmlNode node, string attrib, ref string val) { return GetAndRemoveStringAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredStringAttribute(XmlNode node, string attrib, ref string val) { return GetAndRemoveStringAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif // input.Xml cursor must be at a true/false XML attribute private static XmlNode GetAndRemoveBooleanAttributeInternal(XmlNode node, string attrib, bool fRequired, ref bool val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { try { val = bool.Parse(a.Value); } catch (Exception e) { throw new ConfigurationErrorsException( SR.GetString(SR.GetString(SR.Config_invalid_boolean_attribute, a.Name)), e, a); } } return a; } internal static XmlNode GetAndRemoveBooleanAttribute(XmlNode node, string attrib, ref bool val) { return GetAndRemoveBooleanAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredBooleanAttribute(XmlNode node, string attrib, ref bool val) { return GetAndRemoveBooleanAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif // input.Xml cursor must be an integer XML attribute private static XmlNode GetAndRemoveIntegerAttributeInternal(XmlNode node, string attrib, bool fRequired, ref int val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { if (a.Value.Trim() != a.Value) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_integer_attribute, a.Name), a); } try { val = int.Parse(a.Value, CultureInfo.InvariantCulture); } catch (Exception e) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_integer_attribute, a.Name), e, a); } } return a; } internal static XmlNode GetAndRemoveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemoveIntegerAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemoveIntegerAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif #if UNUSED_CODE private static XmlNode GetAndRemovePositiveIntegerAttributeInternal(XmlNode node, string attrib, bool fRequired, ref int val) { XmlNode a = GetAndRemoveIntegerAttributeInternal(node, attrib, fRequired, ref val); if (a != null && val < 0) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_positive_integer_attribute, attrib), node); } return a; } #endif #if UNUSED_CODE internal static XmlNode GetAndRemovePositiveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemovePositiveIntegerAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredPositiveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemovePositiveIntegerAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif #if UNUSED_CODE private static XmlNode GetAndRemoveTypeAttributeInternal(XmlNode node, string attrib, bool fRequired, ref Type val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { try { val = Type.GetType(a.Value, true /*throwOnError*/); } catch (Exception e) { throw new ConfigurationErrorsException( e.Message, //SR.GetString(SR.Config_invalid_type_attribute, a.Name), e, a); } } return a; } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveTypeAttribute(XmlNode node, string attrib, ref Type val) { return GetAndRemoveTypeAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredTypeAttribute(XmlNode node, string attrib, ref Type val) { return GetAndRemoveTypeAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif internal static void CheckForUnrecognizedAttributes(XmlNode node) { if (node.Attributes.Count != 0) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_unrecognized_attribute, node.Attributes[0].Name), node); } } // // Obsolete XML Attribute Helpers // // if attribute not found return null internal static string RemoveAttribute(XmlNode node, string name) { XmlNode attribute = node.Attributes.RemoveNamedItem(name); if (attribute != null) { return attribute.Value; } return null; } // if attr not found throw standard message - "attribute x required" internal static string RemoveRequiredAttribute(XmlNode node, string name) { return RemoveRequiredAttribute(node, name, false/*allowEmpty*/); } internal static string RemoveRequiredAttribute(XmlNode node, string name, bool allowEmpty) { XmlNode attribute = node.Attributes.RemoveNamedItem(name); if (attribute == null) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_required_attribute_missing, name), node); } if (String.IsNullOrEmpty(attribute.Value) && allowEmpty == false) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_required_attribute_empty, name), node); } return attribute.Value; } // // XML Element Helpers // internal static void CheckForNonElement(XmlNode node) { if (node.NodeType != XmlNodeType.Element) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_elements_only), node); } } internal static bool IsIgnorableAlsoCheckForNonElement(XmlNode node) { if (node.NodeType == XmlNodeType.Comment || node.NodeType == XmlNodeType.Whitespace) { return true; } CheckForNonElement(node); return false; } internal static void CheckForChildNodes(XmlNode node) { if (node.HasChildNodes) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_no_child_nodes), node.FirstChild); } } internal static void ThrowUnrecognizedElement(XmlNode node) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_unrecognized_element), node); } // // Parse Helpers // // } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Globalization; using System.Xml; internal class HandlerBase { private HandlerBase() { } // // XML Attribute Helpers // private static XmlNode GetAndRemoveAttribute(XmlNode node, string attrib, bool fRequired) { XmlNode a = node.Attributes.RemoveNamedItem(attrib); // If the attribute is required and was not present, throw if (fRequired && a == null) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_missing_required_attribute, attrib, node.Name), node); } return a; } private static XmlNode GetAndRemoveStringAttributeInternal(XmlNode node, string attrib, bool fRequired, ref string val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) val = a.Value; return a; } internal static XmlNode GetAndRemoveStringAttribute(XmlNode node, string attrib, ref string val) { return GetAndRemoveStringAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredStringAttribute(XmlNode node, string attrib, ref string val) { return GetAndRemoveStringAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif // input.Xml cursor must be at a true/false XML attribute private static XmlNode GetAndRemoveBooleanAttributeInternal(XmlNode node, string attrib, bool fRequired, ref bool val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { try { val = bool.Parse(a.Value); } catch (Exception e) { throw new ConfigurationErrorsException( SR.GetString(SR.GetString(SR.Config_invalid_boolean_attribute, a.Name)), e, a); } } return a; } internal static XmlNode GetAndRemoveBooleanAttribute(XmlNode node, string attrib, ref bool val) { return GetAndRemoveBooleanAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredBooleanAttribute(XmlNode node, string attrib, ref bool val) { return GetAndRemoveBooleanAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif // input.Xml cursor must be an integer XML attribute private static XmlNode GetAndRemoveIntegerAttributeInternal(XmlNode node, string attrib, bool fRequired, ref int val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { if (a.Value.Trim() != a.Value) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_integer_attribute, a.Name), a); } try { val = int.Parse(a.Value, CultureInfo.InvariantCulture); } catch (Exception e) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_integer_attribute, a.Name), e, a); } } return a; } internal static XmlNode GetAndRemoveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemoveIntegerAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemoveIntegerAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif #if UNUSED_CODE private static XmlNode GetAndRemovePositiveIntegerAttributeInternal(XmlNode node, string attrib, bool fRequired, ref int val) { XmlNode a = GetAndRemoveIntegerAttributeInternal(node, attrib, fRequired, ref val); if (a != null && val < 0) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_invalid_positive_integer_attribute, attrib), node); } return a; } #endif #if UNUSED_CODE internal static XmlNode GetAndRemovePositiveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemovePositiveIntegerAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredPositiveIntegerAttribute(XmlNode node, string attrib, ref int val) { return GetAndRemovePositiveIntegerAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif #if UNUSED_CODE private static XmlNode GetAndRemoveTypeAttributeInternal(XmlNode node, string attrib, bool fRequired, ref Type val) { XmlNode a = GetAndRemoveAttribute(node, attrib, fRequired); if (a != null) { try { val = Type.GetType(a.Value, true /*throwOnError*/); } catch (Exception e) { throw new ConfigurationErrorsException( e.Message, //SR.GetString(SR.Config_invalid_type_attribute, a.Name), e, a); } } return a; } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveTypeAttribute(XmlNode node, string attrib, ref Type val) { return GetAndRemoveTypeAttributeInternal(node, attrib, false /*fRequired*/, ref val); } #endif #if UNUSED_CODE internal static XmlNode GetAndRemoveRequiredTypeAttribute(XmlNode node, string attrib, ref Type val) { return GetAndRemoveTypeAttributeInternal(node, attrib, true /*fRequired*/, ref val); } #endif internal static void CheckForUnrecognizedAttributes(XmlNode node) { if (node.Attributes.Count != 0) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_unrecognized_attribute, node.Attributes[0].Name), node); } } // // Obsolete XML Attribute Helpers // // if attribute not found return null internal static string RemoveAttribute(XmlNode node, string name) { XmlNode attribute = node.Attributes.RemoveNamedItem(name); if (attribute != null) { return attribute.Value; } return null; } // if attr not found throw standard message - "attribute x required" internal static string RemoveRequiredAttribute(XmlNode node, string name) { return RemoveRequiredAttribute(node, name, false/*allowEmpty*/); } internal static string RemoveRequiredAttribute(XmlNode node, string name, bool allowEmpty) { XmlNode attribute = node.Attributes.RemoveNamedItem(name); if (attribute == null) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_required_attribute_missing, name), node); } if (String.IsNullOrEmpty(attribute.Value) && allowEmpty == false) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_required_attribute_empty, name), node); } return attribute.Value; } // // XML Element Helpers // internal static void CheckForNonElement(XmlNode node) { if (node.NodeType != XmlNodeType.Element) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_elements_only), node); } } internal static bool IsIgnorableAlsoCheckForNonElement(XmlNode node) { if (node.NodeType == XmlNodeType.Comment || node.NodeType == XmlNodeType.Whitespace) { return true; } CheckForNonElement(node); return false; } internal static void CheckForChildNodes(XmlNode node) { if (node.HasChildNodes) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_no_child_nodes), node.FirstChild); } } internal static void ThrowUnrecognizedElement(XmlNode node) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_base_unrecognized_element), node); } // // Parse Helpers // // } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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