Emerald (1.5)

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ArrayUtil
- added generalized Diff and MergeDiff functions
- fixed bug in 'MergeDiff' where overlapping changes might be accepted and yield an invalid document
- rewrote 'Diff()' method based on the Hirschberg LCS algorithm (O(m + n) space efficient instead of O(mn))
- added 'Get()' method to read a SINGLE value from a NameValue collection
Async
- BREAKING CHANGE: all async methods now take a Result parameter
- BREAKING CHANGE: 'WhenAllDone()' now takes a 'Result' parameter
- BREAKING CHANGE: 'ExecuteProcess()' now takes a 'Result' parameter instead of a 'TimeSpan'
- BREAKING CHANGE: 'WhenDone()' now expects Result<ResultBase[]> as last argument
- 'CopyStream()' now reads and writes simultaneously
- added 'CopyStream()' method that can copy to multiple streams
- 'ExecuteProcess()' is now non-blocking and closes the input stream
- added 'ExecuteProces()' which takes output and error stream as parameters
- 'CopyStream()' now reads and writes simultaneously (again!)
- 'ExecuteProcess()' is now non-blocking and uses a TaskTimer to abort
- 'ExecuteProcess()' removed compiler warning messages since it's no longer blocking
- 'ExecuteProcess()' wait for process to "officially" terminate
- differentiate b/w dispatch and thread-pool threads
AtomService
- made write features 'internal'
- automatic deletion of entries is now done without storing as much state
- use 'Result.Catch()' to make coroutine calls fit on one line
ContentDisposition
- added class to replace built-in .Net/Mono class, which didn't work as expected
Coroutine
- 'Iterate()' now calls 'MoveNext()' until no more states are available or execution is delayed by Result object
- 'Iterate()' bug fixed where execution of coroutines would unexpectedly halt
- fixed breaking changes
DataCatalog
- don't require a password to be provided for catalogs
DataCommand
- BREAKING CHANGE: renamed 'CreateObject()' to 'ReadAsObject()' (ditto for 'CreateObjects()')
- avoid specifying redundant generic type (causes compilation error on mono)
- allow DataColumnAttribute to work on both properties and fields
- only assign 'null' to reference and nullable types
- use SysUtil.ChangeType instead of Convert to handle nullable types
- cache Type for PropertyInfo and FieldInfo
- 'MakeSqlSafe()' allow null strings
DataColumnAttribute
- make column name optional (by default it's the same as the property or field name)
DataFactory
- added support for DbProviderFactory to bypass reflection overhead
DebugUtil
- added 'Stopwatch()' method
DirectoryService
- use async methods for creating and destroying services
- use 'Result.Catch()' to make coroutine calls fit on one line
DreamContext
- removed timing of features (StopWatch has too much overhead and DateTime has not enough precision)
- use SysUtil.ChangeType instead of Convert to handle nullable types
- added Culture for execution
- use Dictionary<string, string[]> instead of NameValueCollection for path-parameters
DreamContextCollection
- use 'Result.Catch()' to make coroutine calls fit on one line
DreamFeature
- removed unused instance fields (Path, MimeType, Signature, _suffixKeys)
- internalize segment strings
- 'ExtractArguments()' uses Dictionary<string, string[]> instead of NameValueCollection
DreamFeatureChain
- store name of previous stage (for error reporting)
- use DreamContext culture for execution
- don't print password during exceptions
DreamFeatureDirectory
- removed 'SignatureKey' class
DreamFeatureEpilogueAttribute
- BREAKING CHANGE: class removed
DreamFeaturePrologueAttribute
- BREAKING CHANGE: class removed
DreamHeaders
- added class to manage HTTP headers (replaces NameValueCollection)
- circumvent parsing bug in NameValueCollection for 'Set-Cookie' headers
- (bug #3314) special-case 'X-Forwarded-Host' header to accept multiple entries
- added a 'Clear()' method
DreamHost
- new class to create and interact with the Dream host environment
DreamHostService
- BREAKING CHANGE: removed GET:timers, POST:timers, DELETE:timers/{timerid}
- BREAKING CHANGE: renamed 'DreamHost' to 'DreamHostService'
- BREAKING CHANGE: moved Dream host instantiation methods into a new class called 'DreamHost'
- added support for OPTIONS requests
- some services table was using case-sensitive comparison for removing services (which lead to services not being removed)
- blueprints are stored inside a Dictionary instead of a DirectoryService (avoid duplication of the blueprints documents)
- added static 'Create()' method that is used by the console and service hosts to initialize a DreamHost instance
- added a connection limit to avoid saturating the host (NOTE: internal requests do not count towards this limit)
- changed 'GET:status' to only include a summary and link for <activities>, <aliases>, <services>, and <features>
- changed how aliases are memorized; now we only memorize a host alias if we were able to find a matching feature
- changed how 'SubmitRequest()' works; all pre-processing is done on the thread which submitted the request; only the feature chain is executed on a new thread
- removed support for prologue/epilogue inheritance
- allow negative connection limit; corresponds to max threads minus limit
- decrease counter for NotFound response and OPTION requests
- show connection counter and limit in GET:status
- allow <guid> tag in config to set host identity
- reduce request handling timeout to 2hrs
- added <activities> back to "GET:status"
- query param 'dream.in.scheme' used for overriding the scheme used to access dream
- count total requests processed
- show info messages in GET:status
- show request rate in GET:status
- log internal requests
- give each feature stage the name of its previous stage (for error reporting)
- initialize DreamContext with current culture
- use async methods for creating and destroying services
- use 'WithTimeout(TimeSpan.MaxVaue)' during shutdown instead of overriding timeout value
- GET:status added xslt to format XML into HTML
- SubmitRequestAsync: avoid using XUri.SchemeHostPort
- merged 'dream.exit' epilogue into 'dream.out.*'
- fixed IPv6 host bug when enumerating host interfaces
- default culture for DreamContext is now InvariantCulture
- use 'Result.Catch()' to make coroutine calls fit on one line
- don't print password in log
DreamMessage
- BREAKING CHANGE: changed 'Headers' type from 'NameValueCollection' to 'DreamHeaders'
- BREAKING CHANGE: moved all 'HEADER_*' constants to 'DreamHeaders'
- added missing standard HTTP header definitions
DreamResponseException
- show http status code in exception string
DreamProcessing
- BREAKING CHANGE: class merged into 'DreamHost'
DreamService
- BREAKING CHANGE: renamed 'ServiceBase' to 'DreamService'
- 'DetermineAccess()' now prefers query param "apikey" over the api key cookie
- send 'Set-Cookie' to host and owner to clear service-key cookie
- added 'uri.log' service config description
- removed code to destroy logging service automatically (since it's not created by this instance)
- use SysUtil.ChangeType instead of Convert to handle nullable types
- added async methods for creating and destroying services
- made AutoSave asynchronous
- use 'Result.Catch()' to make coroutine calls fit on one line
EventService
- use 'Result.Catch()' to make coroutine calls fit on one line
HttpHandler
- make call to 'SubmitRequest()' synchronous
- made handler synchronous (base on community feedback)
- added fix to startup suggested by namxam (thanks!)
- better debug info for async operations
- update host info for each incoming message; distinguish between internal and external messages
HttpPlugFactory
- dispose of http requests more aggressively
- show exceptions in log
- 'HttpWebRequest.Timeout' and 'HttpWebRequest.ReadWriteTimeout' to infinite
- abort http connection only if the exception did not contain a valid response
- added more detailed information for activity status on outgoing connections for debugging purposes
- use same mechanism for adding and removing activity notifications
- don't set activity hint after completion
- more detailed activity output
- added even more activity tracking
- don't show activity messages after completion
- additional activity update notifications to narrow down what is blocking asynchronous operations
- only set the 'User-Agent' header when it's not yet set
- make status reporting thread-safe
- made the locking for logging activity a bit broader to encompass also the clearing of activities
HttpTransport
- added a connection limit; a '503 Service Unavailable' response will be sent when the limited is exceeded
- reverted earlier change that added a connection limit
- show verb with uri in activity description
- additional activity information on response
- more detailed activity output
- avoid reparsing transport prefix
- added more detailed tracking of async activities
- join the segments to determine the path prefix (as the .Path property returns a "/" prefix)
- make status reporting thread-safe
- made the locking for logging activity a bit broader to encompass also the clearing of activities
HttpUtil
- BREAKING CHANGE: removed 'FetchCookies()' and 'UpdateCookies()'
- BREAKING CHANGE: removed 'NewContentDisposition()'; create 'ContentDisposition' instance instead
- determining if a cookie needs to be sent for a given uri is fixed (cookies for path /deki were incorrectly being sent for path /dekidir)
- use prefetched 'AddWithoutValidate' method instead of fetching it each time
- only throw exception on unsupported headers for DEBUG binaries
- renamed parameter for allowing commas in values to something that is less ambiguous
- fixed 'Set-Cookie' parsing issue (introduced regression in last fix)
IDreamEnvironment
- BREAKING CHANGE: renamed 'SubmitRequest' to 'SubmitRequestAsync' to align it with other similar methods
- added 'UpdateInfoMessage()' method
IYield
- BREAKING CHANGE: 'Resume()' now returns a boolean to indicate that execution can continue (avoid recursive call to 'Coroutine.Interate()')
- added 'IsReadyOrWait()' method for avoiding recursive calls
LogUtils
- added 'LogUtils.Enabled' property to disable logging
- don't take logging lock if the log-level will not log the message anyway
MimeType
- BREAKING CHANGE: changed 'Parameters' type from 'NameValueCollection' to 'Dictionary<string, string>'
- recognize mime-type for files with .svg extension
- cache 'ToString()' representation
- added HTTP and MULTIPART_MIXED mime-types
mindtouch.blueprints
- updated blueprint application to no longer auto-capitalize column data
mindtouch.dream.setup
- added Windows Host installer (required to register windows service)
- NOTE: installer only installs files required by Windows Service Host
mindtouch.host
- added 'nolog' command line option to disable logging
- added 'L' as console command to toggle logging
- use 'DreamHost.Create()' to initialize environment
- added 'guid' command line option to set host identity
- don't print password when enumerating pending operations
mindtouch.host.service
- use 'DreamHost.Create()' to initialize environment
Misc
- BREAKING CHANGE: List<Cookie> was replaced with CookieJar
- Log service must be provided explicitly (not implicit creation of a log service /@log); use <uri.log> in config to specify location of log service
- InvariantCulture clean-up for Regex, String.Compare, String.StartsWith, String.EndsWith, String.IndexOf
MountService
- use async methods for creating and destroying services
- use 'Result.Catch()' to make coroutine calls fit on one line
PhpUtil
- use integers as keys for encoding xml elements
RedirectService
- <timeout> config value is now specified in seconds instead of milliseconds
- use new plug constructor to set timeout value for redirect plug
RendezVousEvent
- prevent having over 1,000 in-place activation (shouldn't happen, but just in case)
- added 'IsReadyOrWait()' method for avoiding recursive calls
- reduced max in-place activation to 100 and added logging in case we hit the limit
- added 'Abort()' method, which reduces the 'PendingCounter' for canceled synchronization events
- added null-check for wait handler
Result
- fixed leaked 'TaskTimer' in 'IYield.Resume()'
- added 'Wait(AutoResetEvent)' method which allows reuse of the synchronization object
- call 'RendezVoudEvent.Abort()' on timeout
- added 'Block()' and 'Block(AutoResetEvent)' methods
- rewrote 'TrySetFinished()' to use 'Monitor.Enter()'
- rewrote 'AcceptInvoke()' to use 'Monitor.Exit()'
- wrap async exception so we don't lose the original stack trace
- made '_status' field volatiles and unnecessary lock() statements
- added 'Catch()' method to handle asynchronous errors more gracefully (only applicable for yield statements)
- invoke catch-handler on 'WhenDone()' as well
ResultBase
- 'Resume()' now uses 'IsReadyOrWait()' to avoid recursive calls
- added 'Block_Helper()' method that makes it easier to set a break-point for debugging (no functional change)
Plug
- BREAKING CHANGE: 'Timeout' is now read-only; use WithTimeout() to create a new plug with a different timeout value
- BREAKGIN CHANGE: changed 'Headers' type from 'NameValueCollection' to 'DreamHeaders'
- added OPTIONS verb
- suppress 'Obsolete' warning when using 'XUri.WithParams(NameValueCollection)'
- added 'WithTimeout()' method; remove Timeout setter property
- better error checking in 'InvokeAsync()'
PrivateStorageService
- only store state when folder exists
- use caching helper functions
- use 'Result.Catch()' to make coroutine calls fit on one line
RedirectService
- use 'Result.Catch()' to make coroutine calls fit on one line
StorageService
- use caching helper functions
- use 'Result.Catch()' to make coroutine calls fit on one line
StringUtil
- added 'EmptyArray' static field that represents an empty array of strings
- added culture invariant methods for Compare, StartsWith, EndsWith, IndexOf, and LastIndexOf
SysUtil
- fixed bug in 'ChangeType()' that caused an exception casting to object
- optimized 'ChangeType()' function by refactoring slow calls
- added methods for setting culture only if needed
Task
- removed redundant calls to 'ContainsKey()' when retrieving state
TaskBehavior
- BREAKING CHANGE: removed constructor with 'Result' argument (too confusing in behavior)
- BREAKING CHANGE: removed simplified constructors; use 'TaskBehavior.NewTaskState()' or 'TaskBehavior.CopyTaskState()'
- BREAKING CHANGE: renamed 'NewTaskState()' to 'NoTaskState()' for pedagogic reasons
- added support for carrying culture information across tasks
- added 'CurrentTaskState()' method to reuse the current task state
TaskTimer
- BREAKING CHANGE: removed simplified constructors; use 'TaskTimer.New() instead'
- check for TimeSpan.MaxValue when changing timer
- '_behavior' was not reset when timer was triggered or cleared causing dangling references
- reduced QUEUE_CUTOFF to 30 seconds; added QUEUE_RESCAN at 25 seconds
- added 'NextMaintance' property to retrieve when the next timer check will occur
- suppess warning when passing a volatile field as a ref parameter
WindowsHost
- added Windows Service Host
- command line arguments are read from 'mindtouch.dream.startup.xml' which must be in the same directory as 'mindtouch.host.service.exe'
XDoc
- BREAKING CHANGE: 'RemoveAll(ICollection)' is now a static method
- BREAKING CHANGE: renamed 'Transform()' to 'TransformAsText()'
- added 'RemoveAll()' method to remove all object matched by current xpath expression
- support 'Parent' operation on attributes
- avoid extraneous copies of XmlNodeList by using XPathExpression directly
- properly handle '#text' nodes
- fixed index error in 'AtPosition()' method
- don't rebuild node list in 'Start()' and 'End()' methods (major performance boost)
- use SysUtil.ChangeType instead of Convert to handle nullable types
- added comparison operation (thx to Brad Langhorst for the code contribution!)
- added 'TransformAsXml()'
- copy selection list when enumerating an XDoc (eliminates the enumeration bug for XDoc)
- documented all public properties and methods
XDocCop
- BREAKING CHANGE: rules now use + to mark elements that need padding (before they used #)
- added 'AddRules()' to initialize a set of rules at once
XDocDiff
- BREAKING CHANGE: removed XDocDiff class (no longer used)
XDocFactory
- fixed exception when calling 'ToXPathValuePairs()' on an empty XDoc
- return Empty document instead of null when document cannot be parsed
- don't log unparsable XML, also consider it a warning, not an error since it's expected to fail from time to time
- don't report parsing errors as they are expected by the methods
XDocUtil
- added 'Highlight()' method to show addition/deletions between two XDoc documents
- refactored 'Tuple<XmlNodeType, string, object>' generic into 'Token' class
XHtmlTextWriter
- comment out CDATA sections when they occur within a <script> or <style> tag
XriPlugFactory
- use new plug constructor to set timeout value
XUri
- BREAKING CHANGE: params is now 'KeyValuePair<string, string>[]' instead of a 'NameValueCollection' (much smaller memory footprint)
- BREAKING CHANGE: make class sealed
- Fixed bug 'Similarity()' that allowed for partial similarities to succeed
- storing encoded username/password to allow special symbols like @ and #
- atomize all strings to avoid repeated allocations of the same values over and over again
- 'Equals()' method was creating a string and then doing a comparison for equality (dumb!); now it compares the relevant elements without allocating new data
- 'GetHashCode()' was not case-insensitive (but 'Equals()' is!)
- 'Similarity()' was also potentially concatenating strings
- replaces all occurrences of 'new string[0]' with 'StringUtil.EmptyArray'
- added 'WithoutLastSegments()' and 'WithoutLastSegment()'
- use SysUtil.ChangeType instead of Convert to handle nullable types
- displaying original uri that didn't parse
- use StringComparer instead of CaseInsensitiveHashCodeProvider (the latter is obsolete)
- removed 'IsDefaultPort()'
- automatically set 'Port' to have the correct default value based on the scheme used
- renamed 'HasDefaultPort' to 'UsesDefaultPort'
- removed 'AtEncode()'
- renamed 'Truncate()' to 'WithFirstSegments()'
- 'At()' checks new segments for validity
- 'GetRalitivePathTo()' avoid using XUri.SchemeHostPort
- 'ChangePrefix()' re-implemented function to avoid unnecessary re-parsing of the URI
- added 'WithScheme()', 'WithHost()', and 'WithPort()'
- fixed error in 'GetHashCode()' to make it case-insensitive
- optimized 'SchemeHostPortPath' property
- optimized 'DeterminePort()'
- disabled NameTable memory optimization (compile with XURI_USE_NAMETABLE to re-enable again)
- inlined all helper methods/properties for 'ToString()'
- fixed a regression that made XUri case-sensitive
- added bool parameter to 'ToString()' to suppress printing of passwords

Retrieved from "http://wiki.developer.mindtouch.com/Dream/Releases/Emerald_(1.5)"

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Emerald (1.5)

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