5 // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne
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7 // Permission is hereby granted, free of charge, to any person obtaining a copy
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8 // of this software and associated documentation files (the "Software"), to deal
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9 // in the Software without restriction, including without limitation the rights
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10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 // copies of the Software, and to permit persons to whom the Software is
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12 // furnished to do so, subject to the following conditions:
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14 // The above copyright notice and this permission notice shall be included in
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15 // all copies or substantial portions of the Software.
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17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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26 using System.Collections.Generic;
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28 using System.Reflection;
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30 using System.Xml.Schema;
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31 using System.Xml.Serialization;
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33 namespace DbLinq.Schema.Dbml
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41 static class DbmlSerializer
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43 private class ValidationException : XmlSchemaValidationException
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45 public ValidationException(IList<string> errors)
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47 Data["Errors"] = errors;
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52 /// Opens the XML stream, given an XSD validation.
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54 /// <param name="xmlStream">The XML stream.</param>
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55 /// <param name="xsdStream">The XSD stream.</param>
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56 /// <param name="validationErrors">The validation errors.</param>
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57 /// <returns></returns>
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58 private static XmlReader OpenXml(Stream xmlStream, Stream xsdStream, ICollection<string> validationErrors)
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60 validationErrors.Clear();
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62 var xmlReaderSettings = new XmlReaderSettings();
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63 xmlReaderSettings.Schemas.Add(null, XmlReader.Create(xsdStream));
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64 xmlReaderSettings.ValidationType = ValidationType.Schema;
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65 xmlReaderSettings.ValidationEventHandler += ((sender, e) => validationErrors.Add(e.Message));
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66 var xmlValidator = XmlReader.Create(xmlStream, xmlReaderSettings);
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67 return xmlValidator;
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71 /// Opens the XSD file.
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73 /// <returns></returns>
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74 private static Stream OpenXsd()
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76 return Assembly.GetExecutingAssembly().GetManifestResourceStream(typeof(DbmlSerializer), "DbmlSchema.xsd");
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80 /// Checks if validation contains error.
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82 /// <param name="validationErrors">The validation errors.</param>
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83 private static void CheckValidation(IList<string> validationErrors)
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85 if (validationErrors.Count > 0)
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87 throw new ValidationException(validationErrors);
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92 /// Reads the specified XML stream for a Database schema.
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94 /// <param name="xmlStream">The XML stream.</param>
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95 /// <param name="validationErrors">The validation errors.</param>
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96 /// <returns></returns>
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97 public static Database Read(Stream xmlStream, IList<string> validationErrors)
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99 using (Stream xsdStream = OpenXsd())
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100 using (XmlReader xmlReader = OpenXml(xmlStream, xsdStream, validationErrors))
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102 var xmlSerializer = new XmlSerializer(typeof(Database));
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103 var dbml = (Database)xmlSerializer.Deserialize(xmlReader);
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109 /// Reads the specified XML stream for a DBML schema.
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111 /// <param name="xmlStream">The XML stream.</param>
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112 /// <returns></returns>
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113 public static Database Read(Stream xmlStream)
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115 var validationErrors = new List<string>();
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116 var dbml = Read(xmlStream, validationErrors);
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117 CheckValidation(validationErrors);
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122 /// Writes the specified XML stream.
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124 /// <param name="xmlStream">The XML stream.</param>
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125 /// <param name="dbml">The DBML.</param>
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126 public static void Write(Stream xmlStream, Database dbml)
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128 var xmlSerializer = new XmlSerializer(dbml.GetType());
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129 xmlSerializer.Serialize(xmlStream, dbml);
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