[457] | 1 | /*
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| 2 | * Created by SharpDevelop.
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| 3 | * User: lextm
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| 4 | * Date: 2008/5/17
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| 5 | * Time: 17:38
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| 6 | *
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| 7 | * To change this template use Tools | Options | Coding | Edit Standard Headers.
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| 8 | */
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| 9 |
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| 10 | using System;
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| 11 | using System.Collections.Generic;
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| 12 | using Lextm.SharpSnmpLib.Mib.Elements;
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| 13 | using Lextm.SharpSnmpLib.Mib.Elements.Entities;
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| 14 | using Lextm.SharpSnmpLib.Mib.Elements.Types;
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| 15 |
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| 16 | namespace Lextm.SharpSnmpLib.Mib
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| 17 | {
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| 18 | /// <summary>
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| 19 | /// MIB module class.
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| 20 | /// </summary>
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| 21 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Mib")]
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| 22 | public sealed class MibModule : IModule
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| 23 | {
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| 24 | private readonly string _name;
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| 25 | private readonly Imports _imports;
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| 26 | private readonly Exports _exports;
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| 27 | private readonly List<IElement> _tokens = new List<IElement>();
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| 28 |
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| 29 | /// <summary>
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| 30 | /// Creates a <see cref="MibModule"/> with a specific <see cref="Lexer"/>.
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| 31 | /// </summary>
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| 32 | /// <param name="name">Module name</param>
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| 33 | /// <param name="symbols">Lexer</param>
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| 34 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "lexer")]
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| 35 | public MibModule(ISymbolEnumerator symbols)
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| 36 | {
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| 37 | if (symbols == null)
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| 38 | {
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| 39 | throw new ArgumentNullException("lexer");
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| 40 | }
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| 41 |
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| 42 | Symbol temp = symbols.NextNonEOLSymbol();
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| 43 | temp.AssertIsValidIdentifier();
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| 44 | _name = temp.ToString().ToUpperInvariant(); // all module names are uppercase
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| 45 |
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| 46 | temp = symbols.NextNonEOLSymbol();
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| 47 | temp.Expect(Symbol.Definitions);
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| 48 |
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| 49 | temp = symbols.NextNonEOLSymbol();
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| 50 | temp.Expect(Symbol.Assign);
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| 51 |
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| 52 | temp = symbols.NextSymbol();
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| 53 | temp.Expect(Symbol.Begin);
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| 54 |
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| 55 | temp = symbols.NextNonEOLSymbol();
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| 56 | if (temp == Symbol.Imports)
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| 57 | {
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| 58 | _imports = ParseDependents(symbols);
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| 59 | }
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| 60 | else if (temp == Symbol.Exports)
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| 61 | {
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| 62 | _exports = ParseExports(symbols);
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| 63 | }
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| 64 | else
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| 65 | {
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| 66 | symbols.PutBack(temp);
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| 67 | }
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| 68 |
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| 69 | ParseEntities(symbols);
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| 70 | }
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| 71 |
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| 72 | #region Accessors
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| 73 |
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| 74 | /// <summary>
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| 75 | /// Module name.
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| 76 | /// </summary>
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| 77 | public string Name
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| 78 | {
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| 79 | get { return _name; }
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| 80 | }
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| 81 |
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| 82 | public Exports Exports
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| 83 | {
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| 84 | get { return _exports; }
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| 85 | }
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| 86 |
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| 87 | public Imports Imports
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| 88 | {
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| 89 | get { return _imports; }
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| 90 | }
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| 91 |
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| 92 | public List<IElement> Tokens
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| 93 | {
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| 94 | get { return this._tokens; }
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| 95 | }
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| 96 |
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| 97 | /// <summary>
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| 98 | /// Entities + Types + all other elements implementing IDeclaration
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| 99 | /// </summary>
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| 100 | public IList<IDeclaration> Declarations
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| 101 | {
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| 102 | get
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| 103 | {
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| 104 | IList<IDeclaration> result = new List<IDeclaration>();
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| 105 | foreach (IElement e in _tokens)
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| 106 | {
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| 107 | IDeclaration decl = e as IDeclaration;
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| 108 | if (decl != null)
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| 109 | {
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| 110 | result.Add(decl);
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| 111 | }
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| 112 | }
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| 113 |
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| 114 | return result;
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| 115 | }
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| 116 | }
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| 117 |
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| 118 | /// <summary>
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| 119 | /// OID nodes.
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| 120 | /// </summary>
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| 121 | public IList<IEntity> Entities
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| 122 | {
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| 123 | get
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| 124 | {
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| 125 | IList<IEntity> result = new List<IEntity>();
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| 126 | foreach (IElement e in _tokens)
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| 127 | {
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| 128 | IEntity entity = e as IEntity;
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| 129 | if (entity != null)
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| 130 | {
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| 131 | result.Add(entity);
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| 132 | }
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| 133 | }
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| 134 |
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| 135 | return result;
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| 136 | }
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| 137 | }
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| 138 |
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| 139 | public IList<ITypeAssignment> Types
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| 140 | {
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| 141 | get
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| 142 | {
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| 143 | IList<ITypeAssignment> result = new List<ITypeAssignment>();
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| 144 | foreach (IElement e in _tokens)
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| 145 | {
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| 146 | ITypeAssignment type = e as ITypeAssignment;
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| 147 | if (type != null)
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| 148 | {
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| 149 | result.Add(type);
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| 150 | }
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| 151 | }
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| 152 |
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| 153 | return result;
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| 154 | }
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| 155 | }
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| 156 |
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| 157 | #endregion
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| 158 |
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| 159 | #region Parsing of Symbols
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| 160 |
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| 161 | private Exports ParseExports(ISymbolEnumerator symbols)
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| 162 | {
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| 163 | return new Exports(this, symbols);
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| 164 | }
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| 165 |
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| 166 | private Imports ParseDependents(ISymbolEnumerator symbols)
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| 167 | {
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| 168 | return new Imports(this, symbols);
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| 169 | }
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| 170 |
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| 171 | private void ParseEntities(ISymbolEnumerator symbols)
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| 172 | {
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| 173 | Symbol temp = symbols.NextNonEOLSymbol();
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| 174 | SymbolList buffer = new SymbolList();
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| 175 |
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| 176 | while (temp != Symbol.End)
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| 177 | {
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| 178 | if (temp == Symbol.Assign)
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| 179 | {
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| 180 | ParseEntity(buffer, symbols);
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| 181 | buffer.Clear();
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| 182 | // skip linebreaks behind an entity
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| 183 | temp = symbols.NextNonEOLSymbol();
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| 184 | }
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| 185 | else
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| 186 | {
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| 187 | buffer.Add(temp);
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| 188 | temp = symbols.NextSymbol();
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| 189 | }
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| 190 | }
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| 191 | }
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| 192 |
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| 193 | private void ParseEntity(SymbolList preAssignSymbols, ISymbolEnumerator symbols)
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| 194 | {
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| 195 | if ((preAssignSymbols == null) || (preAssignSymbols.Count == 0))
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| 196 | {
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| 197 | Symbol s = symbols.NextSymbol();
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| 198 | if (s != null)
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| 199 | {
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| 200 | s.Assert(false, "Invalid Entitiy declaration");
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| 201 | }
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| 202 | else
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| 203 | {
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| 204 | throw new MibException("Invalid Entitiy declaration");
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| 205 | }
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| 206 | }
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| 207 |
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| 208 | // check for a valid identifier
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| 209 | preAssignSymbols[0].AssertIsValidIdentifier();
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| 210 |
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| 211 | if (preAssignSymbols.Count == 1)
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| 212 | {
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| 213 | // its a typedef
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| 214 | _tokens.Add(Lexer.ParseBasicTypeDef(this, preAssignSymbols[0].ToString(), symbols, isMacroSyntax: false));
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| 215 | return;
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| 216 | }
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| 217 |
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| 218 | ISymbolEnumerator preAssignSymbolsEnumerator = preAssignSymbols.GetSymbolEnumerator();
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| 219 | preAssignSymbolsEnumerator.NextNonEOLSymbol(); // returns identifier
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| 220 | Symbol type = preAssignSymbolsEnumerator.NextNonEOLSymbol();
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| 221 |
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| 222 | // parse declarations
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| 223 | if (type == Symbol.Object)
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| 224 | {
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| 225 | Symbol next = preAssignSymbolsEnumerator.NextNonEOLSymbol();
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| 226 |
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| 227 | if (next == Symbol.Identifier)
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| 228 | {
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| 229 | _tokens.Add(new OidValueAssignment(this, preAssignSymbols, symbols));
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| 230 | return;
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| 231 | }
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| 232 | else if (next != null)
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| 233 | {
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| 234 | preAssignSymbolsEnumerator.PutBack(next);
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| 235 | }
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| 236 | }
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| 237 | if (type == Symbol.ModuleIdentity)
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| 238 | {
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| 239 | _tokens.Add(new ModuleIdentity(this, preAssignSymbols, symbols));
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| 240 | return;
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| 241 | }
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| 242 | if (type == Symbol.ObjectType)
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| 243 | {
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| 244 | _tokens.Add(new ObjectType(this, preAssignSymbols, symbols));
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| 245 | return;
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| 246 | }
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| 247 | if (type == Symbol.ObjectGroup)
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| 248 | {
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| 249 | _tokens.Add(new ObjectGroup(this, preAssignSymbols, symbols));
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| 250 | return;
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| 251 | }
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| 252 | if (type == Symbol.NotificationGroup)
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| 253 | {
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| 254 | _tokens.Add(new NotificationGroup(this, preAssignSymbols, symbols));
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| 255 | return;
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| 256 | }
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| 257 | if (type == Symbol.ModuleCompliance)
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| 258 | {
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| 259 | _tokens.Add(new ModuleCompliance(this, preAssignSymbols, symbols));
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| 260 | return;
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| 261 | }
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| 262 | if (type == Symbol.NotificationType)
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| 263 | {
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| 264 | _tokens.Add(new NotificationType(this, preAssignSymbols, symbols));
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| 265 | return;
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| 266 | }
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| 267 | if (type == Symbol.ObjectIdentity)
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| 268 | {
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| 269 | _tokens.Add(new ObjectIdentity(this, preAssignSymbols, symbols));
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| 270 | return;
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| 271 | }
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| 272 | if (type == Symbol.Macro)
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| 273 | {
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| 274 | _tokens.Add(new Macro(this, preAssignSymbols, symbols));
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| 275 | return;
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| 276 | }
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| 277 | if (type == Symbol.TrapType)
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| 278 | {
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| 279 | _tokens.Add(new TrapType(this, preAssignSymbols, symbols));
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| 280 | return;
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| 281 | }
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| 282 | if (type == Symbol.AgentCapabilities)
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| 283 | {
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| 284 | _tokens.Add(new AgentCapabilities(this, preAssignSymbols, symbols));
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| 285 | return;
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| 286 | }
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| 287 |
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| 288 | preAssignSymbols[1].Assert(false, "Unknown/Invalid declaration");
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| 289 | }
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| 290 |
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| 291 | #endregion
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| 292 |
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| 293 | }
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| 294 | }
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