/// <summary>
/// Returns a stream to the requested file. Don't forget to close the file once you're finished!
/// See documentation for further information.
/// </summary>
/// <remarks>If the file does not exist in the local cache, it is fetched and cached.
/// If the file does exist, its checksum is compared with the one from the server-side file
/// and may be cached again and returned.</remarks>
/// <param name="path">The path to the file to return. Must be a relative path and not be null or empty.</param>
/// <returns>A <see cref="Stream"/> containing the file contents.</returns>
/// <exception cref="System.IO.IOException">The file was not found.
/// -or- An error occurred retrieving the file from the local cache directory.
/// -or- An error occurred retrieving the file from the server.</exception>
public Stream GetFileFromPath(string path)
{
AssertNotDisposed();
Assertions.AssertNotEmpty(path, "path");
try
{
using (var service = ServiceFactory.GetServiceWrapper <IFileTransferService>())
{
if (!_fileCache.IsCached(path))
{
GetFileAndStoreInCache(path, service.Instance);
}
else
{
string sourceChecksum = service.Instance.GetFileChecksum(path);
string cacheFileChecksum = _fileCache.GetChecksum(path);
if (!string.Equals(sourceChecksum, cacheFileChecksum))
{
GetFileAndStoreInCache(path, service.Instance);
}
}
return(_fileCache.OpenFile(path));
}
}
catch (Exception ex)
{
Logger.Instance.LogException(this, ex);
throw new IOException(string.Format(Properties.Resources.GetFileFromPathRetrievalError, path), ex);
}
}
void ISettingsServiceInternal.SetSetting(string identifier, string name, SettingItem value)
{
try
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
IEnumerable <SettingKey> savedSettings = null;
lock (SyncRoot)
{
SettingKey key = SettingKey.Create(identifier, name);
List <KeyValuePair <SettingKey, SettingItem> > settings = new List <KeyValuePair <SettingKey, SettingItem> >();
settings.Add(new KeyValuePair <SettingKey, SettingItem>(key, value));
savedSettings = SaveSettings(settings);
}
if (savedSettings != null && savedSettings.Any())
{
OnSettingChanged(new SettingChangedEventArgs(savedSettings));
}
}
catch (Exception ex)
{
throw AlarmWorkflowFaultDetails.CreateFault(ex);
}
}
public AdvancedInfoEntry(string key, object value)
{
Assertions.AssertNotEmpty(key, "key");
Key = key;
Value = value;
}
/// <summary>
/// Creates the database context for a connection to the specified server,
/// by using a custom EDMX path and retrieving the other options from the backend configuration.
/// </summary>
/// <typeparam name="T">The ObjectContext type to create.</typeparam>
/// <param name="edmxPath">The path to the .edmx-file. This path must be relative to the project.
/// See <see cref="ContextCreationOptions.EdmxPath"/> for further information.</param>
/// <returns>The created database context (derived from <see cref="ObjectContext"/>).</returns>
public static T CreateContext <T>(string edmxPath) where T : ObjectContext
{
Assertions.AssertNotEmpty(edmxPath, "edmxPath");
ContextCreationOptions options = ContextCreationOptions.CreateFromSettings();
options.EdmxPath = edmxPath;
return(CreateContext <T>(options));
}
/// <summary>
/// Creates a new <see cref="SettingKey"/> instance.
/// </summary>
/// <param name="identifier">The identifier of the setting.</param>
/// <param name="name">The name of the setting.</param>
/// <returns>A new <see cref="SettingKey"/> instance.</returns>
public static SettingKey Create(string identifier, string name)
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
return(new SettingKey()
{
Identifier = identifier, Name = name
});
}
/// <summary>
/// Traverses the property graph of an object and returns the value of a certain property.
/// </summary>
/// <param name="graph">The object graph to use. Must not be null.</param>
/// <param name="expression">The expression of the property to set. Must not be empty.</param>
/// <returns>The value of the property.</returns>
/// <exception cref="T:MissingFieldException">A certain property in the expression was not found.</exception>
/// <exception cref="T:ExpressionNotSupportedException">The expression was not supported.</exception>
public static object GetValueFromExpression(object graph, string expression)
{
Assertions.AssertNotNull(graph, "graph");
Assertions.AssertNotEmpty(expression, "expression");
PropertyInfo property = null;
object target = null;
GetPropertyFromExpression(graph, expression, true, out property, out target);
return(property.GetValue(target, null));
}
/// <summary>
/// Initializes a new instance of the <see cref="SettingItem"/> class.
/// </summary>
/// <param name="identifier">The identifier that this setting is associated with.</param>
/// <param name="name">The name of this setting.</param>
/// <param name="defaultValue">The default value of this setting.</param>
/// <param name="type">The type of the setting.</param>
internal SettingItem(string identifier, string name, string defaultValue, Type type)
: this()
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
Assertions.AssertNotNull(type, "type");
this.Identifier = identifier;
this.Name = name;
this.SettingType = type;
_defaultValueSerialized = defaultValue;
}
/// <summary>
/// Traverses the property graph of an object and sets a certain property to a given value.
/// </summary>
/// <param name="graph">The object graph to use. Must not be null.</param>
/// <param name="expression">The expression of the property to set. Must not be empty.</param>
/// <param name="value">The value to set.</param>
/// <exception cref="T:MissingFieldException">A certain property in the expression was not found.</exception>
/// <exception cref="T:ExpressionNotSupportedException">The expression was not supported.</exception>
public static void SetValueFromExpression(object graph, string expression, object value)
{
Assertions.AssertNotNull(graph, "graph");
Assertions.AssertNotEmpty(expression, "expression");
PropertyInfo property = null;
object target = null;
GetPropertyFromExpression(graph, expression, true, out property, out target);
property.SetValue(target, value, null);
}
/// <summary>
/// Initializes the logger.
/// </summary>
/// <param name="logName">The name of the log. This will be used as the folder name of this log.</param>
/// <exception cref="System.InvalidOperationException">This instance is already initialized.</exception>
public void Initialize(string logName)
{
Assertions.AssertNotEmpty(logName, "logName");
if (_log != null)
{
throw new InvalidOperationException("This instance is already initialized!");
}
Log4netConfigurator.Configure(logName);
_log = LogManager.GetLogger(logName);
}
void IFileCache.StoreFile(string path, Stream content)
{
Assertions.AssertNotEmpty(path, "path");
Assertions.AssertNotNull(content, "content");
string absPath = GetAbsolutePath(GetStringHash(path));
EnsureCacheDirectoryExists();
using (FileStream destination = new FileStream(absPath, FileMode.Create, FileAccess.Write))
{
content.CopyTo(destination);
}
}
/// <summary>
/// Attaches an event handler to the <see cref="E:AppDomain.CurrentDomain.UnhandledException"/> event,
/// which automatically creates error reports for each escalated exception.
/// </summary>
/// <param name="componentName">The default component name to use for each new error report. Must not be null or empty.</param>
public static void RegisterAppDomainUnhandledExceptionListener(string componentName)
{
Assertions.AssertNotEmpty(componentName, "componentName");
AppDomain.CurrentDomain.UnhandledException += (o, e) =>
{
Exception exception = (Exception)e.ExceptionObject;
ErrorReport report = new ErrorReport(exception);
report.SourceComponentName = componentName;
report.IsTerminating = e.IsTerminating;
CreateErrorReportInternal(report);
};
}
SettingItem ISettingsServiceInternal.GetSetting(string identifier, string name)
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
SettingItem item = _settings.GetSetting(identifier, name);
lock (SyncRoot)
{
ApplySettingValue(identifier, name, item);
}
return(item);
}
private static void AssertPathIsNotRootedAndExists(string path)
{
Assertions.AssertNotEmpty(path, "path");
if (Path.IsPathRooted(path))
{
throw new IOException(Properties.Resources.FilePathIsRootError);
}
string localPath = GetLocalPathForRelative(path);
if (!File.Exists(localPath))
{
throw new FileNotFoundException(string.Format(Properties.Resources.FilePathNotFoundError, path));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigurableServiceLocator"/> class with a custom configuration file path.
/// </summary>
/// <param name="configurationFile">The name of the configuration file. If this file path is relative, it is assumed relative to the working directory.</param>
/// <exception cref="AlarmWorkflow.Shared.Core.AssertionFailedException">The parameters were invalid.</exception>
/// <exception cref="System.IO.FileNotFoundException">The configuration file was not found.</exception>
/// <exception cref="System.Xml.Schema.XmlSchemaValidationException">The configuration file was malformed.</exception>
public ConfigurableServiceLocator(string configurationFile)
{
Assertions.AssertNotEmpty(configurationFile, "configurationFile");
if (!Path.IsPathRooted(configurationFile))
{
configurationFile = Path.Combine(Utilities.GetWorkingDirectory(), configurationFile);
}
if (!File.Exists(configurationFile))
{
throw new FileNotFoundException(Properties.Resources.ServiceLocationFileNotPresent, configurationFile);
}
_serviceLocationCache = new ReadOnlyCollection <IBackendServiceLocation>(BuildServiceLocationCache(configurationFile).ToList());
}
/// <summary>
/// Traverses the property graph of an object and sets a certain property to a given value.
/// </summary>
/// <param name="graph">The object graph to use. Must not be null.</param>
/// <param name="expression">The expression of the property to set. Must not be empty.</param>
/// <param name="value">The value to set.</param>
/// <returns>Whether or not the value could be set. If this returns <c>false</c>, then the expression led to a nonexistent property.</returns>
public static bool TrySetValueFromExpression(object graph, string expression, object value)
{
Assertions.AssertNotNull(graph, "graph");
Assertions.AssertNotEmpty(expression, "expression");
PropertyInfo property = null;
object target = null;
bool success = GetPropertyFromExpression(graph, expression, false, out property, out target);
if (!success)
{
value = null;
return(false);
}
property.SetValue(target, value, null);
return(true);
}
SettingItem ISettingsServiceInternal.GetSetting(string identifier, string name)
{
try
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
SettingItem item = _settings.GetSetting(identifier, name);
lock (SyncRoot)
{
ApplySettingValue(identifier, name, item);
}
return(item);
}
catch (Exception ex)
{
throw AlarmWorkflowFaultDetails.CreateFault(ex);
}
}
void ISettingsServiceInternal.SetSetting(string identifier, string name, SettingItem value)
{
Assertions.AssertNotEmpty(identifier, "identifier");
Assertions.AssertNotEmpty(name, "name");
IEnumerable <SettingKey> savedSettings = null;
lock (SyncRoot)
{
SettingKey key = SettingKey.Create(identifier, name);
Dictionary <SettingKey, SettingItem> settings = new Dictionary <SettingKey, SettingItem>();
settings.Add(key, value);
savedSettings = SaveSettings(settings);
}
if (savedSettings != null && savedSettings.Any())
{
OnSettingChanged(new SettingChangedEventArgs(savedSettings));
}
}
/// <summary>
/// Parses a string that tells how to format an object using macros within curly braces.
/// </summary>
/// <param name="graph">The object graph to use. Must not be null.</param>
/// <param name="format">The format string, using the property values in curly braces (expressions), like {Property}. Must not be empty.</param>
/// <returns>The formatted string.</returns>
public virtual string ToString(TInput graph, string format)
{
Assertions.AssertNotNull(graph, "graph");
Assertions.AssertNotEmpty(format, "format");
StringBuilder sb = new StringBuilder(format);
if (Options.HasFlag(ObjectFormatterOptions.RemoveNewlines))
{
sb.Replace("\n", " ");
sb.Replace(Environment.NewLine, " ");
}
foreach (string macro in GetMacros(format))
{
string expression = macro.Substring(1, macro.Length - 2);
string value = ProcessMacro(graph, macro, expression);
sb.Replace(macro, value);
}
return(sb.ToString());
}
/// <summary>
/// Returns the full path to a file that lies within the deployed "TestData" directory.
/// </summary>
/// <param name="relativePath">The relative file path of the file within the deployed "TestData" directory. Must not be null or empty.</param>
/// <returns>The full path to a file that lies within the deployed "TestData" directory.</returns>
protected string GetTestDataFilePath(string relativePath)
{
Assertions.AssertNotEmpty(relativePath, "relativePath");
return(Path.Combine(TestContext.DeploymentDirectory, relativePath));
}
private string GetStringHash(string input)
{
Assertions.AssertNotEmpty(input, "input");
return(Utilities.ComputeSHA1(Encoding.UTF8.GetBytes(input)));
}
private string GetAbsolutePath(string path)
{
Assertions.AssertNotEmpty(path, "path");
return(Path.Combine(_absoluteCacheDirectory.FullName, path));
}
