[3742] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17181] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3742] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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[4068] | 22 | using System;
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[3742] | 23 | using System.Collections.Generic;
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[4068] | 24 | using System.IO;
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| 25 | using System.IO.Compression;
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| 26 | using System.Linq;
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[1454] | 27 | using System.Text;
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[17068] | 28 | using System.Threading;
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[17097] | 29 | using HEAL.Attic;
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[4068] | 30 | using HeuristicLab.Persistence.Core;
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| 31 | using HeuristicLab.Persistence.Core.Tokens;
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[1454] | 32 | using HeuristicLab.Persistence.Interfaces;
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[4068] | 33 | using HeuristicLab.Tracing;
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[1454] | 34 |
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[1615] | 35 | namespace HeuristicLab.Persistence.Default.Xml {
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[1454] | 36 |
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[3004] | 37 |
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| 38 | /// <summary>
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| 39 | /// Main entry point of persistence to XML. Use the static methods to serialize
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| 40 | /// to a file or to a stream.
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| 41 | /// </summary>
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[1564] | 42 | public class XmlGenerator : GeneratorBase<string> {
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[1566] | 43 |
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[3935] | 44 | protected int depth;
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| 45 | protected int Depth {
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[1570] | 46 | get {
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| 47 | return depth;
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| 48 | }
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| 49 | set {
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| 50 | depth = value;
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| 51 | prefix = new string(' ', depth * 2);
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| 52 | }
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| 53 | }
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[1454] | 54 |
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[3935] | 55 | protected string prefix;
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[1570] | 56 |
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| 57 |
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[3016] | 58 | /// <summary>
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| 59 | /// Initializes a new instance of the <see cref="XmlGenerator"/> class.
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| 60 | /// </summary>
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[1454] | 61 | public XmlGenerator() {
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[1570] | 62 | Depth = 0;
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[1454] | 63 | }
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| 64 |
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[17068] | 65 | protected enum NodeType { Start, End, Inline };
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[1454] | 66 |
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[3937] | 67 | protected static void AddXmlTagContent(StringBuilder sb, string name, Dictionary<string, string> attributes) {
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[1566] | 68 | sb.Append(name);
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[1454] | 69 | foreach (var attribute in attributes) {
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| 70 | if (attribute.Value != null && !string.IsNullOrEmpty(attribute.Value.ToString())) {
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[1570] | 71 | sb.Append(' ');
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[1454] | 72 | sb.Append(attribute.Key);
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| 73 | sb.Append("=\"");
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| 74 | sb.Append(attribute.Value);
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| 75 | sb.Append('"');
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| 76 | }
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| 77 | }
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[1570] | 78 | }
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| 79 |
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[3937] | 80 | protected static int AttributeLength(Dictionary<string, string> attributes) {
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| 81 | return attributes
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| 82 | .Where(kvp => !string.IsNullOrEmpty(kvp.Key) && !string.IsNullOrEmpty(kvp.Value))
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| 83 | .Select(kvp => kvp.Key.Length + kvp.Value.Length + 4).Sum();
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| 84 | }
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| 85 |
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| 86 | protected static void AddXmlStartTag(StringBuilder sb, string name, Dictionary<string, string> attributes) {
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[1570] | 87 | sb.Append('<');
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| 88 | AddXmlTagContent(sb, name, attributes);
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| 89 | sb.Append('>');
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| 90 | }
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| 91 |
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[3937] | 92 | protected static void AddXmlInlineTag(StringBuilder sb, string name, Dictionary<string, string> attributes) {
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[1570] | 93 | sb.Append('<');
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| 94 | AddXmlTagContent(sb, name, attributes);
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| 95 | sb.Append("/>");
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| 96 | }
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| 97 |
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[3935] | 98 | protected static void AddXmlEndTag(StringBuilder sb, string name) {
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[1570] | 99 | sb.Append("</");
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| 100 | sb.Append(name);
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[1454] | 101 | sb.Append(">");
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[1570] | 102 | }
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| 103 |
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[3937] | 104 | protected string CreateNodeStart(string name, Dictionary<string, string> attributes) {
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| 105 | StringBuilder sb = new StringBuilder(prefix.Length + name.Length + 4
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| 106 | + AttributeLength(attributes));
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[1570] | 107 | sb.Append(prefix);
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| 108 | Depth += 1;
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| 109 | AddXmlStartTag(sb, name, attributes);
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| 110 | sb.Append("\r\n");
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[1566] | 111 | return sb.ToString();
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[1454] | 112 | }
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| 113 |
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[3937] | 114 | private static Dictionary<string, string> emptyDict = new Dictionary<string, string>();
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[3935] | 115 | protected string CreateNodeStart(string name) {
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[3937] | 116 | return CreateNodeStart(name, emptyDict);
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[1454] | 117 | }
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| 118 |
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[3935] | 119 | protected string CreateNodeEnd(string name) {
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[1570] | 120 | Depth -= 1;
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[3937] | 121 | StringBuilder sb = new StringBuilder(prefix.Length + name.Length + 5);
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[1570] | 122 | sb.Append(prefix);
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| 123 | AddXmlEndTag(sb, name);
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| 124 | sb.Append("\r\n");
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| 125 | return sb.ToString();
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| 126 | }
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| 127 |
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[3937] | 128 | protected string CreateNode(string name, Dictionary<string, string> attributes) {
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| 129 | StringBuilder sb = new StringBuilder(prefix.Length + name.Length + 5
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| 130 | + AttributeLength(attributes));
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[1570] | 131 | sb.Append(prefix);
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| 132 | AddXmlInlineTag(sb, name, attributes);
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| 133 | sb.Append("\r\n");
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| 134 | return sb.ToString();
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| 135 | }
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| 136 |
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[3937] | 137 | protected string CreateNode(string name, Dictionary<string, string> attributes, string content) {
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[3944] | 138 | StringBuilder sb = new StringBuilder(
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| 139 | prefix.Length + name.Length + AttributeLength(attributes) + 2
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| 140 | + content.Length + name.Length + 5);
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[1570] | 141 | sb.Append(prefix);
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| 142 | AddXmlStartTag(sb, name, attributes);
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| 143 | sb.Append(content);
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| 144 | sb.Append("</").Append(name).Append(">\r\n");
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| 145 | return sb.ToString();
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| 146 | }
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| 147 |
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[3036] | 148 | /// <summary>
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| 149 | /// Formats the specified begin token.
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| 150 | /// </summary>
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| 151 | /// <param name="beginToken">The begin token.</param>
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| 152 | /// <returns>The token in serialized form.</returns>
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[1566] | 153 | protected override string Format(BeginToken beginToken) {
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[3937] | 154 | var dict = new Dictionary<string, string> {
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[1570] | 155 | {"name", beginToken.Name},
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[3937] | 156 | {"typeId", beginToken.TypeId.ToString()},
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| 157 | {"id", beginToken.Id.ToString()}};
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[3005] | 158 | AddTypeInfo(beginToken.TypeId, dict);
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| 159 | return CreateNodeStart(XmlStringConstants.COMPOSITE, dict);
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[3944] | 160 |
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[1454] | 161 | }
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| 162 |
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[3937] | 163 | protected void AddTypeInfo(int typeId, Dictionary<string, string> dict) {
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[3005] | 164 | if (lastTypeToken != null) {
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| 165 | if (typeId == lastTypeToken.Id) {
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| 166 | dict.Add("typeName", lastTypeToken.TypeName);
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| 167 | dict.Add("serializer", lastTypeToken.Serializer);
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| 168 | lastTypeToken = null;
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| 169 | } else {
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| 170 | FlushTypeToken();
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| 171 | }
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| 172 | }
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| 173 | }
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| 174 |
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[3036] | 175 | /// <summary>
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| 176 | /// Formats the specified end token.
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| 177 | /// </summary>
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| 178 | /// <param name="endToken">The end token.</param>
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| 179 | /// <returns>The token in serialized form.</returns>
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[1566] | 180 | protected override string Format(EndToken endToken) {
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[1612] | 181 | return CreateNodeEnd(XmlStringConstants.COMPOSITE);
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[1454] | 182 | }
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| 183 |
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[3036] | 184 | /// <summary>
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| 185 | /// Formats the specified data token.
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| 186 | /// </summary>
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| 187 | /// <param name="dataToken">The data token.</param>
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| 188 | /// <returns>The token in serialized form.</returns>
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[1566] | 189 | protected override string Format(PrimitiveToken dataToken) {
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[3937] | 190 | var dict = new Dictionary<string, string> {
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| 191 | {"typeId", dataToken.TypeId.ToString()},
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[1454] | 192 | {"name", dataToken.Name},
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[3937] | 193 | {"id", dataToken.Id.ToString()}};
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[3005] | 194 | AddTypeInfo(dataToken.TypeId, dict);
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| 195 | return CreateNode(XmlStringConstants.PRIMITIVE, dict,
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[1570] | 196 | ((XmlString)dataToken.SerialData).Data);
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[1454] | 197 | }
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| 198 |
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[3036] | 199 | /// <summary>
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| 200 | /// Formats the specified ref token.
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| 201 | /// </summary>
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| 202 | /// <param name="refToken">The ref token.</param>
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| 203 | /// <returns>The token in serialized form.</returns>
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[1566] | 204 | protected override string Format(ReferenceToken refToken) {
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[1612] | 205 | return CreateNode(XmlStringConstants.REFERENCE,
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[3937] | 206 | new Dictionary<string, string> {
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| 207 | {"ref", refToken.Id.ToString()},
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[1570] | 208 | {"name", refToken.Name}});
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[1454] | 209 | }
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| 210 |
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[3036] | 211 | /// <summary>
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| 212 | /// Formats the specified null ref token.
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| 213 | /// </summary>
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| 214 | /// <param name="nullRefToken">The null ref token.</param>
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| 215 | /// <returns>The token in serialized form.</returns>
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[1566] | 216 | protected override string Format(NullReferenceToken nullRefToken) {
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[1612] | 217 | return CreateNode(XmlStringConstants.NULL,
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[3937] | 218 | new Dictionary<string, string>{
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[1570] | 219 | {"name", nullRefToken.Name}});
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[1454] | 220 | }
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| 221 |
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[3036] | 222 | /// <summary>
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| 223 | /// Formats the specified meta info begin token.
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| 224 | /// </summary>
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| 225 | /// <param name="metaInfoBeginToken">The meta info begin token.</param>
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| 226 | /// <returns>The token in serialized form.</returns>
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[1553] | 227 | protected override string Format(MetaInfoBeginToken metaInfoBeginToken) {
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[1612] | 228 | return CreateNodeStart(XmlStringConstants.METAINFO);
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[1553] | 229 | }
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| 230 |
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[3036] | 231 | /// <summary>
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| 232 | /// Formats the specified meta info end token.
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| 233 | /// </summary>
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| 234 | /// <param name="metaInfoEndToken">The meta info end token.</param>
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| 235 | /// <returns>The token in serialized form.</returns>
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[1553] | 236 | protected override string Format(MetaInfoEndToken metaInfoEndToken) {
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[1612] | 237 | return CreateNodeEnd(XmlStringConstants.METAINFO);
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[1553] | 238 | }
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| 239 |
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[3935] | 240 | protected TypeToken lastTypeToken;
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[3036] | 241 | /// <summary>
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| 242 | /// Formats the specified token.
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| 243 | /// </summary>
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| 244 | /// <param name="token">The token.</param>
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| 245 | /// <returns>The token in serialized form.</returns>
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[3005] | 246 | protected override string Format(TypeToken token) {
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| 247 | lastTypeToken = token;
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| 248 | return "";
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| 249 | }
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| 250 |
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[3935] | 251 | protected string FlushTypeToken() {
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[3005] | 252 | if (lastTypeToken == null)
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| 253 | return "";
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| 254 | try {
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| 255 | return CreateNode(XmlStringConstants.TYPE,
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[3937] | 256 | new Dictionary<string, string> {
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| 257 | {"id", lastTypeToken.Id.ToString()},
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[3005] | 258 | {"typeName", lastTypeToken.TypeName },
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| 259 | {"serializer", lastTypeToken.Serializer }});
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[17068] | 260 | } finally {
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[3005] | 261 | lastTypeToken = null;
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| 262 | }
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| 263 | }
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| 264 |
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[3028] | 265 | /// <summary>
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| 266 | /// Formats the specified type cache.
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| 267 | /// </summary>
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| 268 | /// <param name="typeCache">The type cache.</param>
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| 269 | /// <returns>An enumerable of formatted type cache tags.</returns>
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[1454] | 270 | public IEnumerable<string> Format(List<TypeMapping> typeCache) {
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[1612] | 271 | yield return CreateNodeStart(XmlStringConstants.TYPECACHE);
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[1454] | 272 | foreach (var mapping in typeCache)
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[1570] | 273 | yield return CreateNode(
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[1612] | 274 | XmlStringConstants.TYPE,
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[1570] | 275 | mapping.GetDict());
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[1612] | 276 | yield return CreateNodeEnd(XmlStringConstants.TYPECACHE);
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[1454] | 277 | }
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| 278 |
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[3004] | 279 | /// <summary>
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| 280 | /// Serialize an object into a file.
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[3016] | 281 | /// The XML configuration is obtained from the <c>ConfigurationService</c>.
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[3004] | 282 | /// The file is actually a ZIP file.
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| 283 | /// Compression level is set to 5 and needed assemblies are not included.
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[3036] | 284 | /// </summary>
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| 285 | /// <param name="o">The object.</param>
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| 286 | /// <param name="filename">The filename.</param>
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[17068] | 287 | public static void Serialize(object o, string filename, CancellationToken cancellationToken = default(CancellationToken)) {
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| 288 | Serialize(o, filename, ConfigurationService.Instance.GetConfiguration(new XmlFormat()), false, CompressionLevel.Optimal, cancellationToken);
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[1454] | 289 | }
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| 290 |
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[3004] | 291 | /// <summary>
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| 292 | /// Serialize an object into a file.
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[3016] | 293 | /// The XML configuration is obtained from the <c>ConfigurationService</c>.
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[3004] | 294 | /// Needed assemblies are not included.
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| 295 | /// </summary>
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[3028] | 296 | /// <param name="o">The object.</param>
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| 297 | /// <param name="filename">The filename.</param>
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[3004] | 298 | /// <param name="compression">ZIP file compression level</param>
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[17068] | 299 | public static void Serialize(object o, string filename, CompressionLevel compression, CancellationToken cancellationToken = default(CancellationToken)) {
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| 300 | Serialize(o, filename, ConfigurationService.Instance.GetConfiguration(new XmlFormat()), false, compression, cancellationToken);
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[1892] | 301 | }
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| 302 |
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[3028] | 303 | /// <summary>
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| 304 | /// Serializes the specified object into a file.
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| 305 | /// Needed assemblies are not included, ZIP compression level is set to 5.
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| 306 | /// </summary>
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| 307 | /// <param name="obj">The object.</param>
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| 308 | /// <param name="filename">The filename.</param>
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| 309 | /// <param name="config">The configuration.</param>
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[17068] | 310 | public static void Serialize(object obj, string filename, Configuration config, CancellationToken cancellationToken = default(CancellationToken)) {
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| 311 | Serialize(obj, filename, config, false, CompressionLevel.Optimal, cancellationToken);
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[1797] | 312 | }
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| 313 |
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[17068] | 314 | private static void Serialize(object obj, Stream stream, Configuration config, bool includeAssemblies, CompressionLevel compression, CancellationToken cancellationToken = default(CancellationToken)) {
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[17097] | 315 | Core.Serializer serializer = new Core.Serializer(obj, config);
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[17068] | 316 | Serialize(stream, includeAssemblies, compression, serializer, cancellationToken);
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[12727] | 317 | }
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| 318 |
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[17097] | 319 | private static void Serialize(Stream stream, bool includeAssemblies, CompressionLevel compression, Core.Serializer serializer, CancellationToken cancellationToken = default(CancellationToken)) {
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[12727] | 320 | try {
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[17068] | 321 | cancellationToken.ThrowIfCancellationRequested();
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[12727] | 322 | DateTime start = DateTime.Now;
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| 323 | serializer.InterleaveTypeInformation = false;
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| 324 | XmlGenerator generator = new XmlGenerator();
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| 325 | using (ZipArchive zipArchive = new ZipArchive(stream, ZipArchiveMode.Create)) {
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| 326 | ZipArchiveEntry entry = zipArchive.CreateEntry("data.xml", compression);
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| 327 | using (StreamWriter writer = new StreamWriter(entry.Open())) {
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| 328 | foreach (ISerializationToken token in serializer) {
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[17068] | 329 | cancellationToken.ThrowIfCancellationRequested();
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[12727] | 330 | string line = generator.Format(token);
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| 331 | writer.Write(line);
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| 332 | }
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| 333 | }
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| 334 | entry = zipArchive.CreateEntry("typecache.xml", compression);
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| 335 | using (StreamWriter writer = new StreamWriter(entry.Open())) {
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| 336 | foreach (string line in generator.Format(serializer.TypeCache)) {
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| 337 | writer.Write(line);
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| 338 | }
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| 339 | }
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| 340 | if (includeAssemblies) {
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| 341 | foreach (string name in serializer.RequiredFiles) {
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[17068] | 342 | cancellationToken.ThrowIfCancellationRequested();
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[12727] | 343 | Uri uri = new Uri(name);
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| 344 | if (!uri.IsFile) {
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| 345 | Logger.Warn("cannot read non-local files");
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| 346 | continue;
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| 347 | }
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| 348 | entry = zipArchive.CreateEntry(Path.GetFileName(uri.PathAndQuery), compression);
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| 349 | using (BinaryWriter bw = new BinaryWriter(entry.Open())) {
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| 350 | using (FileStream reader = File.OpenRead(uri.PathAndQuery)) {
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| 351 | byte[] buffer = new byte[1024 * 1024];
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| 352 | while (true) {
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[17068] | 353 | cancellationToken.ThrowIfCancellationRequested();
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[12727] | 354 | int bytesRead = reader.Read(buffer, 0, 1024 * 1024);
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| 355 | if (bytesRead == 0)
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| 356 | break;
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| 357 | bw.Write(buffer, 0, bytesRead);
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| 358 | }
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| 359 | }
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| 360 | }
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| 361 | }
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| 362 | }
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| 363 | }
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| 364 | Logger.Info(String.Format("serialization took {0} seconds with compression level {1}",
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| 365 | (DateTime.Now - start).TotalSeconds, compression));
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[17068] | 366 | } catch (Exception) {
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[12727] | 367 | Logger.Warn("Exception caught, no data has been serialized.");
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| 368 | throw;
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| 369 | }
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| 370 | }
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| 371 |
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[3028] | 372 | /// <summary>
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| 373 | /// Serializes the specified object into a file.
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| 374 | /// </summary>
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| 375 | /// <param name="obj">The object.</param>
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| 376 | /// <param name="filename">The filename.</param>
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| 377 | /// <param name="config">The configuration.</param>
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| 378 | /// <param name="includeAssemblies">if set to <c>true</c> include needed assemblies.</param>
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| 379 | /// <param name="compression">The ZIP compression level.</param>
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[17068] | 380 | public static void Serialize(object obj, string filename, Configuration config, bool includeAssemblies, CompressionLevel compression, CancellationToken cancellationToken = default(CancellationToken)) {
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| 381 | string tempfile = null;
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[1625] | 382 | try {
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[17068] | 383 | tempfile = Path.GetTempFileName();
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[12727] | 384 |
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[2037] | 385 | using (FileStream stream = File.Create(tempfile)) {
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[17068] | 386 | Serialize(obj, stream, config, includeAssemblies, compression, cancellationToken);
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[2037] | 387 | }
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[17068] | 388 | // copy only if needed
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[1733] | 389 | File.Copy(tempfile, filename, true);
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[17068] | 390 | } catch (Exception) {
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[1733] | 391 | Logger.Warn("Exception caught, no data has been written.");
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| 392 | throw;
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[17068] | 393 | } finally {
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| 394 | if (tempfile != null && File.Exists(tempfile))
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| 395 | File.Delete(tempfile);
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[1733] | 396 | }
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| 397 | }
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| 398 |
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[3028] | 399 | /// <summary>
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| 400 | /// Serializes the specified object into a stream using the <see cref="XmlFormat"/>
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| 401 | /// obtained from the <see cref="ConfigurationService"/>.
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| 402 | /// </summary>
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| 403 | /// <param name="obj">The object.</param>
|
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| 404 | /// <param name="stream">The stream.</param>
|
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[12727] | 405 | /// <param name="compressionType">Type of compression, default is GZip.</param>
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[17068] | 406 | public static void Serialize(object obj, Stream stream, CompressionType compressionType = CompressionType.GZip, CancellationToken cancellationToken = default(CancellationToken)) {
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| 407 | Serialize(obj, stream, ConfigurationService.Instance.GetConfiguration(new XmlFormat()), compressionType, cancellationToken);
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[3005] | 408 | }
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[1797] | 409 |
|
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[3005] | 410 |
|
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[3028] | 411 | /// <summary>
|
---|
| 412 | /// Serializes the specified object into a stream.
|
---|
| 413 | /// </summary>
|
---|
| 414 | /// <param name="obj">The object.</param>
|
---|
| 415 | /// <param name="stream">The stream.</param>
|
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| 416 | /// <param name="config">The configuration.</param>
|
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[12727] | 417 | /// <param name="compressionType">Type of compression, default is GZip.</param>
|
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[17068] | 418 | public static void Serialize(object obj, Stream stream, Configuration config, CompressionType compressionType = CompressionType.GZip, CancellationToken cancellationToken = default(CancellationToken)) {
|
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| 419 | Serialize(obj, stream, config, false, compressionType, cancellationToken);
|
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[1797] | 420 | }
|
---|
[3005] | 421 |
|
---|
[3028] | 422 | /// <summary>
|
---|
| 423 | /// Serializes the specified object into a stream.
|
---|
| 424 | /// </summary>
|
---|
| 425 | /// <param name="obj">The object.</param>
|
---|
| 426 | /// <param name="stream">The stream.</param>
|
---|
| 427 | /// <param name="config">The configuration.</param>
|
---|
| 428 | /// <param name="includeAssemblies">if set to <c>true</c> include need assemblies.</param>
|
---|
[12727] | 429 | /// <param name="compressionType">Type of compression, default is GZip.</param>
|
---|
[17068] | 430 | public static void Serialize(object obj, Stream stream, Configuration config, bool includeAssemblies, CompressionType compressionType = CompressionType.GZip, CancellationToken cancellationToken = default(CancellationToken)) {
|
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[1733] | 431 | try {
|
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[17097] | 432 | Core.Serializer serializer = new Core.Serializer(obj, config);
|
---|
[12727] | 433 | if (compressionType == CompressionType.Zip) {
|
---|
[17068] | 434 | Serialize(obj, stream, config, includeAssemblies, CompressionLevel.Optimal, cancellationToken);
|
---|
[12727] | 435 | } else {
|
---|
[17068] | 436 | Serialize(stream, serializer, cancellationToken);
|
---|
[12727] | 437 | }
|
---|
[17068] | 438 | } catch (PersistenceException) {
|
---|
[5403] | 439 | throw;
|
---|
[17068] | 440 | } catch (Exception e) {
|
---|
[5403] | 441 | throw new PersistenceException("Unexpected exception during Serialization.", e);
|
---|
[4068] | 442 | }
|
---|
[5403] | 443 | }
|
---|
| 444 |
|
---|
| 445 | /// <summary>
|
---|
| 446 | /// Serializes the specified object into a stream.
|
---|
| 447 | /// </summary>
|
---|
| 448 | /// <param name="obj">The object.</param>
|
---|
| 449 | /// <param name="stream">The stream.</param>
|
---|
| 450 | /// <param name="config">The configuration.</param>
|
---|
| 451 | /// <param name="includeAssemblies">if set to <c>true</c> include need assemblies.</param>
|
---|
| 452 | /// <param name="types">The list of all serialized types.</param>
|
---|
[12727] | 453 | /// <param name="compressionType">Type of compression, default is GZip.</param>
|
---|
| 454 | public static void Serialize(object obj, Stream stream, Configuration config, bool includeAssemblies, out IEnumerable<Type> types,
|
---|
[17068] | 455 | CompressionType compressionType = CompressionType.GZip, CancellationToken cancellationToken = default(CancellationToken)) {
|
---|
[5403] | 456 | try {
|
---|
[17097] | 457 | Core.Serializer serializer = new Core.Serializer(obj, config);
|
---|
[12727] | 458 | if (compressionType == CompressionType.Zip) {
|
---|
[17068] | 459 | Serialize(stream, includeAssemblies, CompressionLevel.Optimal, serializer, cancellationToken);
|
---|
[12727] | 460 | } else {
|
---|
[17068] | 461 | Serialize(stream, serializer, cancellationToken);
|
---|
[12727] | 462 | }
|
---|
[5403] | 463 | types = serializer.SerializedTypes;
|
---|
[17068] | 464 | } catch (PersistenceException) {
|
---|
[1625] | 465 | throw;
|
---|
[17068] | 466 | } catch (Exception e) {
|
---|
[1625] | 467 | throw new PersistenceException("Unexpected exception during Serialization.", e);
|
---|
[3005] | 468 | }
|
---|
[1454] | 469 | }
|
---|
[5403] | 470 |
|
---|
[17097] | 471 | private static void Serialize(Stream stream, Core.Serializer serializer, CancellationToken cancellationToken = default(CancellationToken)) {
|
---|
[17068] | 472 | cancellationToken.ThrowIfCancellationRequested();
|
---|
[5403] | 473 | using (StreamWriter writer = new StreamWriter(new GZipStream(stream, CompressionMode.Compress))) {
|
---|
| 474 | serializer.InterleaveTypeInformation = true;
|
---|
| 475 | XmlGenerator generator = new XmlGenerator();
|
---|
| 476 | foreach (ISerializationToken token in serializer) {
|
---|
[17068] | 477 | cancellationToken.ThrowIfCancellationRequested();
|
---|
[5403] | 478 | string line = generator.Format(token);
|
---|
| 479 | writer.Write(line);
|
---|
| 480 | }
|
---|
| 481 | writer.Flush();
|
---|
| 482 | }
|
---|
| 483 | }
|
---|
[1454] | 484 | }
|
---|
| 485 | } |
---|