3 // Marek Habersack (mhabersack@novell.com)
5 // (C) 2007 Novell, Inc
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Collections.Generic;
30 using System.ComponentModel;
33 using System.Xml.XPath;
35 namespace Mono.MonoConfig
37 public static class Helpers
39 public const string FakeRootName = "F_a_K_e_R_o_O_t_M_o_N_o_C_o_N_f_I_g_N_o_D_e";
41 public static EnumType ConvertEnum <EnumType> (string value, string attrName)
44 EnumConverter cvt = new EnumConverter (typeof (EnumType));
45 return (EnumType) cvt.ConvertFromInvariantString (value);
47 throw new ApplicationException (
48 String.Format ("Failed to parse the '{0}' attribute '{1}'", attrName, value));
52 public static string BreakLongLine (string line, string indent, int maxLineWidth)
54 StringBuilder sb = new StringBuilder ();
56 int lineLen = line.Length;
57 int segments = lineLen / maxLineWidth;
59 int segmentLen = maxLineWidth - 1;
62 while (segments-- >= 0) {
63 idx = line.LastIndexOf (' ', segmentStart + segmentLen);
65 segmentLen = idx - segmentStart;
69 sb.AppendFormat ("{0}{1}\n", indent, line.Substring (segmentStart, segmentLen));
70 segmentStart = idx + 1;
71 if (lineLen - segmentStart > maxLineWidth)
72 segmentLen = maxLineWidth;
74 segmentLen = lineLen - segmentStart - 1;
77 return sb.ToString ();
80 public static string GetRequiredNonEmptyAttribute (XPathNavigator node, string name)
82 string val = GetOptionalAttribute (node, name);
84 if (String.IsNullOrEmpty (val))
85 ThrowMissingRequiredAttribute (node, name);
89 public static string GetOptionalAttribute (XPathNavigator node, string name)
91 return node.GetAttribute (name, String.Empty);
94 static void ThrowMissingRequiredAttribute (XPathNavigator node, string name)
96 throw new ApplicationException (String.Format ("Element '{0}' is missing required attribute '{1}'",
97 node.LocalName, name));
100 public static void BuildSectionTree (XPathNodeIterator iter, Section section)
102 XPathNavigator nav, tmp;
103 XPathNodeIterator children;
104 List <Section> sectionChildren = section.Children;
105 Section newSection, curSection;
107 while (iter.MoveNext ()) {
109 children = nav.Select ("section[string-length(@name) > 0]");
110 curSection = new Section (nav);
112 while (children.MoveNext ()) {
113 tmp = children.Current;
114 newSection = new Section (tmp);
115 BuildSectionTree (tmp.Select ("section[string-length(@name) > 0]"), newSection);
116 curSection.Children.Add (newSection);
118 sectionChildren.Add (curSection);
122 public static XmlDocument FindDefault (IDefaultContainer[] defaults, string name, FeatureTarget target)
126 if (defaults == null || (len = defaults.Length) == 0)
129 IDefaultContainer cur;
132 for (int i = 0; i < len; i++) {
134 text = cur.FindDefault (name, target);
142 XmlDocument ret = new XmlDocument ();
143 ret.LoadXml (String.Format ("<{0}>{1}</{0}>", FakeRootName, text));
148 public static ConfigBlockBlock FindConfigBlock (IConfigBlockContainer[] configBlocks, string name)
152 if (configBlocks == null || (len = configBlocks.Length) == 0)
155 IConfigBlockContainer cur;
156 ConfigBlockBlock ret = null;
158 for (int i = 0; i < len; i++) {
159 cur = configBlocks [i];
160 ret = cur.FindConfigBlock (name);
168 public static void SaveXml (XmlDocument doc, string targetFile)
170 XmlWriterSettings settings = new XmlWriterSettings ();
171 settings.CloseOutput = true;
172 settings.CheckCharacters = true;
173 settings.Indent = true;
174 settings.Encoding = Encoding.UTF8;
175 settings.IndentChars = "\t";
176 settings.NewLineHandling = NewLineHandling.Replace;
178 XmlWriter writer = null;
180 writer = XmlWriter.Create (targetFile, settings);
183 } catch (Exception ex) {
184 throw new ApplicationException (
185 String.Format ("Failed to write XML file {1}", targetFile), ex);