| 3.3.0 | 2007-10-05 |
mod-developer |
New visualizer tool provided.
|
Ruby |
JRuby 1.0.1 is now the official release of Ruby support in NetKernel 3.3.
|
mod-smtp |
Now includes a port parameter for SMTP connections.
|
mod-db |
The HSQLDB JDBC driver updated to the latest version: 1.8.0_8
|
ext-layer1 |
Fixed StringAspect compatibility issue with lower layers.
|
ext-layer1 |
Added isResponseSet() query method.
|
ext-layer1 |
WormHoleAccessor changed to reduce thread use.
|
ext-xml-ura |
Fixed RelaxNG to work with <include/>.
|
ext-kernel |
Module list is cacheable now.
|
ext-kernel |
Logging fixes.
|
ext-dpml |
Documentation fixes.
|
ext-xquery |
Entity names fixed. Eliminated a memory leak.
|
tpt-http |
Added support for if-modified-since and eTags.
|
mod-ws |
Documentation updates.
|
doc-books |
Documentation restructuring.
|
ext-entrypoint |
Changed resolver to save a thread.
|
ext-entrypoint |
Documentation changes and updates.
|
doc-netkernel |
Documentation changes and updates.
|
ext-debugger |
Style and presentation updates with documentation changes.
|
ext-install |
Added force mode to the package deployer.
|
ext-introspect |
New Request Visualizer Tool and assorted documentation changes.
|
mod-developer |
New Request Visualizer Tool and assorted documentation changes.
|
mod-fulcrum-backend |
Documentation updates and book reordering.
|
mod-db |
Database connection timeout added.
|
mod-db |
Documentation updated.
|
ext-sys |
Logging updates adds originator for application logs.
|
mod-smtp |
Added support for outbound port (was fixed to port 25)
|
ext-script |
Jython 2.2 update
|
ext-script |
Documentation updated to increase consistency
|
ext-unit |
Added setup and teardown before tests.
|
tpt-jms |
Improved error handling
|
workbench |
Minor correction and documentation updates.
|
ext-client-http |
Updated to latest Apache commons client
|
mod-rdf-jena |
Documentation updates and general clean up
|
util-cron |
Added support for user metadata fields for jobs. Added start/end time fields to cron trigger.
|
mod-json |
Documentation updates
|
mod-dbxml |
Added connection timeout configuration and monitoring.
|
mod-tutorial |
Changes to support new approach to documentation - code first then building up to the higher layers.
|
tpt-http |
HTTP Bridge updated to implement ETAG and to handle if-not-modified headers.
Added passAsURI flag to enable pass-by-reference of HTTP request data for RESTful
services.
|
ext-lib |
Added host name to the control panel for easier server management.
|
ext-layer |
file: resources have change detection and invalidation.
|
Kernel |
Kernel asynchronous threading revised for efficient highly concurrent accessor requests.
Deadlock detector has increased responsiveness against thread starvation.
|
| 3.2.0 | 2007-05-11 |
Ruby |
JRuby 0.9.9 library became available before final release.
This is now the version included in NetKernel 3.2.
|
| 3.2.RC2 | 2007-03-22 |
Ruby |
Ruby moved from ext-script to an independent lang-ruby module. Ruby support is based on JRuby 0.9.8 library
which is pre-production beta and was found to have memory leaks. Moving to a seperate module allows ruby to be used
experimentally but allows it be isolated from production systems.
|
Bootloader | Classloader updated to allow JNI native libraries to be loaded from lib/native/ |
mod-dbxml | Updated to aggressively cleanup JNI native references |
| 3.2.RC1 | 2007-03-22 |
New PiNKY Module | Added PiNKY 0.2 library for feed processing applications. |
New BDBXML Module | Added Berkeley DBXML tool set. |
Groovy 1.0 | Groovy runtime updated to 1.0 language release. |
Ruby | Ruby runtime updated to 0.9.8 language release. |
ext-xquery | Updated xquery, xslt2 to use Saxon 8.9 library. |
mod-smtp | SMTP module updated to improve performance under load and added SMTPSync |
Updated Standard Java XML Libraries | Xerces updated to 2.9.0, Xalan updated to 2.7.0 |
XmlBeans | Updated to 2.3.0-TRUNK-2007-03-20 |
Stax | Updated to Codehaus Stax 1.2.0 |
sed | Performance improvements. |
XSLT | Fixed entity resolution for relative entity references. |
XML Transreptors | Improved efficiency and memory footprint. |
HTTP Mimetypes | Added a local mimetype map for css, idoc. |
HTTP Clients | Added proxy setting options and fixed observance of global system proxy settings. |
netkernel daemon script | Fixed lost messages for first boot log |
Documentation | Revision to architects book + general minor updates. |
| 3.1.0 | 2006-10-17 |
Documentation | Updates to Getting Started guide - with new hello world tutorial. |
Added JSON resource model | JSON now supported with mod-json. JSONAspect can be used in Javascript and any other scripting language. Also provides JSON serializer and parser. |
Trace Tool | Trace tool now has option to probe internal and external module address spaces. |
Module Installer | Supports installation of expanded modules. |
SOAP Service Map | Now supports relative endpoint URLs. |
sed streaming editor | ext-sys now has a streaming editor similar to Unix sed. |
Experimental support for Ruby | Added active:ruby script engine - based on JRuby v0.9.0 |
XmlBeans serializer/parser | Patched the XmlBeans library to fix buffer overflows with & as a consequence this also fixes E4X & handling. |
XSLT accessor entity resolver | NetKernel is now used as the entity resolver when expanding entity references. |
sqlQueryBlob/sqlUpdateBlob | Fixed to report content length and return stream correctly. |
XHTMLRedirect | Supports string aspects. |
Init Error Handling | Runtime errors thrown during post-boot init are now reported and handled. |
Update to Lucene 1.9.1 | Updated the mod-lucene module to use Lucene 1.9.1 |
Update to Saxon 8.8 | Updated the ext-xquery module to use Saxon 8.8 |
| 3.0.0 | 2006-03-24 |
Documentation | A few last minute tweaks. |
| 3.0.RC1 | 2006-03-16 |
Documentation | All documentation has been completed. |
I18N content encoding | Content encoding has been tested and updated to be preserved on inbound and outbound interfaces. |
| 3.0.Preview-7 | 2006-02-08 |
Documentation | Continued refinement to documentation includes completed Extension and Reference Books. |
Module Classloader | Module classloader now supports getPackage() for rare situations in which Java libraries need this. |
| 3.0.Preview-6 | 2006-02-08 |
Documentation | Continued refinement to documentation |
Forum Application | The distribution now includes a pre-installed copy of 1060 Forum. A detailed deconstruction guide is also provided in the docs. |
| 3.0.Preview-5 | 2006-01-03 |
Dynamic Java Compilation | Dynamic compilation of Java source code is now supported for modules. Java development becomes dynamic just like any
other scripting language on NetKernel. |
Rhino E4X Patches | The Rhino Javascript library has been patched to enable E4X using the XmlBeans 2.1.x library - this improves performance and fixes
issues with escaping of literals and a problem manipulating E4X objects caused by a bug in the underlying XmlObject.save() method. |
Module ClassLoader equals() | Potential for a ClassCastException has been eliminated with stronger type checking |
Documentation Formats/Renderers | A new device independent 'doc-source' format has been added for documentation with a set of associated renderers.
Renderers are supplied in mod-docxter with full backwards compatibility for legacy formats.
|
HSQLDB v1.8.0.1 | The HSQL embedded database shipped in mod-db has been updated to v1.8.0.1 |
Windows Service Wrapper | the directory [install]/bin/win32-service/ now provides resources to register NetKernel as an NT service on the Windows platform. |
1060 Forum | 1060 Forum is now shipped as a demonstration application. |
XForms library uses Chiba 1.2.0 | The XForms library has been updated to use Chiba 1.2.0. The XForms rendering stylesheet 'form-standard.xsl' has been updated. For performance the
default XSLT engine is now xsltc. |
| 3.0.Preview-4 | 2005-11-10 |
Soft Scope Cache | The default cache now uses a Soft Reference design - the cache auto-tunes with no hard-limit imposed on the total number of cached items and has a more
efficient cache weighting algorithm. Overall, the new cache is at least 3 times more efficient in memory use and has lower maintanence costs.
Furthermore the soft reference design means that it is now impossible to create a bad configuration that in the past could have resulted
in heap out-of-memory in extreme situations. After extensive performance analysis it was found that there is now
no benefit and a disproportionate cost overhead associated with serialized L2 disk cache - therefore the L2 cache is no longer implemented.
A small consequence of the cache changes is that the cache-view-tool only shows metadata about the cached resource and no longer allows the
actual cached resource to be viewed. |
XRL Recursion Algorithm | The XRL accessor has been rewritten to use a single pass recursion which yields a speed-up of ~3x for large docs. |
Exists Dependencies | Unnecessary dependencies generated for Exists requests are no longer accumulated. |
Cron Scheduler | A Cron module is provided which gives recurrent and one-shot request scheduling. |
XUnit Framework | XUnit has been updated with a new tool to aggregate and run tests from across the system in a single place. |
Component Lifecycle | When shutting down/restarting the kernel now calls destroy() on accessors, fragmentors, transreptors and transports to facilitate cleanup. |
E4X Rhino Fix | E4X objects constructed from XMLBeans were not consistent with literals and could cause exceptions - a patch to the Rhino library fixes this. |
Transreptor Coverage | Transreptors have been migrated to NKF and now implement transreptor pipelining - a comprehensive coverage matrix test has eliminated corner cases. |
Asynchronous Deadly Embrace Fixed | A rare but critical deadly embrace between 2 symmetrical async threads forked from a common parent has been fixed. |
RDBMS Stored Procedures | A new sqlProc accessor supports calling stored procedures and returning multiple results sets. |
Install Wizard Push Upload | Modules can now be installed by uploading from a browser. |
Removed Headerless Flag in Image Tools | Image tools no longer arbitrarily set java.awt.headerless - this should be set as a system properties in start.sh for truely headerless servers. |
Download Timeouts | When system tools source resources from external servers they no longer throw exception if the download does not complete within the deadlock period. |
Bootloader - Paths | System base path is now set as a Java property in startup scripts - see start.sh / startup.bat. |
Bootloader - Isolation | Bootloader now provides complete classpath isolation so that external classpaths cannot interfere with the NK system. |
fls fix | A bug in which the URI was wrongly reported in file listings has been fixed. |
Documentation | Initial work on restructuring the documentation has begun. All reference documentation has been thoroughly reviewed and updated. |
Lucene Indexer | Updated to v1.4 latest release. |
Class Trace Tool | A new class trace tool allows classpath testing within the context of module - now featuring extra bling! |
Ping Pong GUI Demo | A demonstration application showing a RESTful GUI design-pattern is now shipped pre-installed. |
| 3.0.Preview-3 | 2005-9-27 |
Process Table | Asynchronous processes whose parent process has ended are now shown in the process table and may be killed. |
Grouped Accessor Docs | Accessor Listing is now paginated and linked to the host module. |
XRL Documentation | Improved to provide more accuracy and detail. |
Logging Configuration | Logging can now be configured to fine granularity - see system.xml |
Apache Chainsaw Log Viewer | Chainsaw can now be configured to receive NetKernel logs. |
getClonedXDA() | Method added to XDA API to give a safe cloned IXDA |
Beanshell Concurrency | Any given Beanshell script may now be run concurrently. |
Logging pagination | The NetKernel log viewer now provides paged navigation. |
Streaming API for XML (StAX) | ext-xml-core now exports javax.xml.streaming and provides StAXReaderAspect and transreptors. |
Look and Feel | The graphic design has been updated. |
Thread Stacktrace on deadlock on JDK 1.5 | If you are using JDK1.5 you now receive a detailed stack trace if deadlocked thread is killed. |
XmlBeans v2.0.0 | The Apache XmlBean library provided in xml-core has been updated to v2.0.0 - improvements include better performance
and support for XPath and XQuery to place cursors. |
| 3.0.Preview-2 | 2005-8-17 |
LDAP Module | A new LDAP library provides support for querying, adding and modifying LDAP records. |
RDF Module | A new RDF library provides support for working with RDF models - this library is large and so it is not shipped
with the distribution it can be installed from the 1060 servers using the install wizard. |
Application Logger | The logger now supports application specific logs - with granularity down to individual
modules. The log inspection tool now provides views of each log separately.
|
Panel Plug-ins | It is now possible to export control panel plugins from your modules which will
be automatically added as panels to the backend admin tools.
|
Module RSS Feeds | A plug-in panel may be configured to automatically render an RSS v2.0 feed, exposed as service by a
module, for display in the panel in the back-end tools.
|
Control Panel | The control panel has been tweaked to group related services together. The developer tools
panel is now available from a primary link in the toolbar.
|
JVM File Handle Workaround | A JVM bug which leaves file handles open when accessing resources from JAR has been worked around. |
| 3.0.Preview-1 | 2005-8-5 |
Python Language Support | Full support for modules containing either scripts of classes or both. Modules are compiled and stored in bytecode form inside the NetKernel cache.
Dependency checking so that scripts and their results are invalidated and recompiled
if a modules source is edited. Imports working from with NetKernel address space rather than filesystem. Both relative and absolute import resolution.
Error handling integrated into NetKernels stack traces (i.e. Python stack traces appear properly format
inside a NetKernel exception)
|
Linear Resource Accumulation | Improvements to the metadata cost accumulation algorithm now ensures that the same dependency doesn't accumulate multiple times
for a resource ensuring a more accurate cost rating |
Dependency Visualization | Improved dependency introspection on trace and debugger tools - both the debugger and the trace tools incorporate an advanced resource
metadata view which shows all dependencies which effect the expiry of a resource and a foldable depdenency tree for the resource visualising expiry and cost. |
JDBC Result Sets | JDBC result set aspect reintroduced - the connection leaking and reuse issues of IAspectResultSet have been fixed. This is
useful for processing large result sets with NetKernel scripts |
CLOB Support | CLOB update and query support has been added to the RDBMS library |
mod-db driver JARs located in context | Vendor specific JDBC driver JARs are now located by searching the super stack of requests. This allows driver JARs to be installed
without modifying the syatem classpath or altering mod-db - as a consequence mod-db is now shipped as a jar. |
NKF improvements | Added method IBasicHelper.createSubRequest(String aBaseURI) to combine the creation of a subrequest with setting it's base URI
(which is mandatory). Added an implicit INKFBasicHelper.setResponse() inside INKFBasicHelper.createResponseFrom() methods which saves an extra line of code. |
Email Transport | Email transport has improved error handling and reporting |
Log Level Persistence | Log level settings now persist across shutdowns. |
Tidy serialisation in tools | The install wizard and new module wizard both serialize all XML configuration files in a tidy indented form which is easier for human editing |
Session Mapper | Session mapper config is now (consistently) located in the ffcpl:/etc directory |
Tools | various improvements to introspect tools - extra fields on healthcheck, uptime not reset by hot restart, reindex all link
and better formatting of search results page |
JAXP1.3 XML Libraries | The core XML libraries have been updated to support JAXP1.3 and
now provide forwards compatibility to J2SE 5.0 It is recommended that you test
your code for compatibilty. You may need to rebuild against lib/endorsed/*.jar to
avoid linkage errors.
|
ext-xquery Saxonb8-4 | The Xquery and xslt2 library has been updated to use version 8-4 of Saxon. You may need to
check your xquery code to ensure that it complies with the latest changes to the XQuery specification.
|
Cache Reap Algorithm | The cache reap algorithm has been enhanced to improve reap efficiency and will yield significant
performance gains for systems with large cache sizes. |
New Throttle Accessor | The throttle accessor provides a concurrency management wrapper which may layered over any set
of NetKernel services to control the maximum thread concurrency entering the services. This can be
very useful to throttle concurrent requests to external services such as databases or integrated web-services. |
NetKernel Foundation API | The NetKernel Foundation API has been enhanced to provide an asynchronous Accessor base-class - this
enables both asynchronous client and asynchronous server design patterns. |
ext-xforms | Updated XForms services to use Chiba v1.1.1. |
ext-xml-core | The xml-core library has been enhanced to provide wider coverage for XML object model transreption.
In particular XmlObject is now broadly supported enabling full use of the E4X capability in Javascript. |
| 2.0.6 | 2005-5-8 |
System version added to Healthcheck | The version of the distribution is now shown in thes system healthcheck tool. |
Duplicate Entrypoints in Docs | When two modules of different versions co-exist only the most recent docs are displayed to prevent duplication. |
Win32 File URIs Fixed | A JVM bug in File causes Win32 files to have invalid URIs - fixes have been made to module wizard and introspect tools to workaround. |
Command Line Mode | dexter.sh script has been updated and NK can be used from native OS script |
| 2.0.5 | 2005-5-1 |
XmlObject Transreption | New transreptors provide full coverage to and from XmlObjects |
Javascript Updated to Rhino1_6 | Javascript updated to Rhino 1_6 with support for E4X |
Mod-DB | A bug in which connections could remain open after using a ResultSetAspect has been fixed |
Module Installer Defaults to Update | The module installer now defaults to update rather than add to maintain existing modules - it is recommended to use update to maintain a standard system. |
HTTP Client Library shuts down HTTPConnectionPool properly | The HTTPConnectionPool is now properly shutdown if the HTTP client accessor is closed. New instances of the accessor are able to create connections. |
JMS supports JMSReplyTo | JMSReplyTo supports has been added to JMS transport |
| 2.0.4 | 2005-4-12 |
Hot Restart | Hot Restart now correctly detects modules invalidated when code libraries are changed. |
Cummulative Memory Leak | A bug which caused a small but cummulative memory leak on each restart has been fixed. |
HTTP Client Library | A new HTTP client library provides services for making HTTP client requests. |
Improved SQL Support | Updated to provide connection pooling and transaction support on SQL operations. |
ext-xml-core | Adds Boolean2XML transreptor |
ext-layer1 | Improved NKF to support dynamic expiry metadata |
Control Panel News | Latest news on 1060 NetKernel, including important and critical updates, is now provided in the control panel. |
FrontEnd-Fulcrum | Localhost cookie no longer causes root path 404. |
Documentation Updated | Updated documentation based on customer feedback. |
| 2.0.3 | 2005-2-10 |
Documentation | Corrections have been made to the docs to fix typos etc. |
Win32 File Handles | The Module Resource accessor in the Kernel was not correctly closing file handles on Win32 resulting in locked resources. This is fixed. |
DPML RNG Schema Fixed | A bug in the seq element has been fixed. |
WS-Test module | Some broken links to test services have been fixed. |
Administration Backend-Fulcrum | The backend fulcrum is now shipped as a directory rather than as a JAR file, enabling applications to install their own web admin
to the fulcrum. |
| 2.0.2 | 2005-1-17 |
Introductory Documentation Refactor | The early introductory documentation has been refactored to improve readability and to improve
the learning curve. |
Hello World Trailmaps | Several new trailmaps to get new users into creating services with NetKernel and understanding the most basic NetKernel concepts. |
Module Introspection Tool | The module introspection tool now provides links to enable drilling down to explore imported modules. |
Workbench | Due to popular demand the workbench has made a reappearance. The workbench is a pre-configured
module that is ready to have scripts and applications dropped into it and run. |
Resource Browser now supports resource viewing | The Resource Browser is a tool in the developer tools section of the System Services
Fulcrum. It now supports the ability to retrieve an resource in any module and
return it to the developer. |
Module Schema | The module schema is now provided in the xlib module. |
New Module Wizard | A bug in the error handling of the module wizard has been fixed. |
Scripting Accessors | A new document describes how accessors can be implemented using dynamic languages. |
DynamicURLClassloader | Double buffering has been added to improve memory footprint and performance. |
| 2.0.1 | 2004-12-10 |
JMS Connection Module | A new JMS module provides JMS topic/queue transport and accessor. |
Cache Config Editor | The cache can now be graphically configured using a control panel plug-in. |
HSQLDB 1.7.3 | The shipped HSQLDB library has been updated to 1.7.3 |
Enhanced Module Introspection | Provides an enhanced view of the resources and services provided by a module. |
Fix: Debugger Deadlock NP | Fixes a Null Pointer exception in the debugger which occurred after the Deadlock detector had killed a process stopped in the debugger. |
Fix: Backend Fulcrum Cookie | Fixes problem resolving docs if the browser had a cookie set on the localhost root path. |
Fix: Expired Accessor Bug | Fixes a rare problem of expired cached accessor which have a very long latency between accesses. |
Fix: Default Encoding of Serialize Accessor | Fixes the default encoding of the serialize accessor to be UTF-8 irrespective of platform default. |
Fix: Thread Safety of ClassLoader | Precautionary fix to the main NetKernel classloader to guarantee thread safety when cocurrently accessed. |
| 2.0.0 | 2004-11-01 |
NetKernel Foundation API | A new foundation API provides a clean abstraction upon which accessor and scripts can be developed. |
NetKernel Scripting Framework | A script framework which supports Javasript, Beanshell and Python scripts on NetKernel. |
XUnit Testing Framework | A service oriented unit testing suite provides XML and graphical unit test framework. |
JDOM Object Model | XML resources may be requested with JDOM aspects. |
XmlBean Object Model | Apache XmlBean objects may be requested as Aspects of any XML resource. |
Scripting Playpen | The scripting playpen allows scipts to be tested/developed interactively. |
Asynchronous processes with join | active:asynch and active:join provide support for forking and joining asynchronous processes. |
Fragmentation Services | A generic URI fragment infrastructure has been added to the kernel. Representations of resources may use fragmentor services
for post-processing URI fragments. XPointer is implemented as a Fragmentor for any XML resource and so XPointer URI fragments may be specified
with any resource request. |
Aspect Transreption | The kernel will now create an aspect from the low-level binary stream if a high-level aspect-to-aspect transreption is not found. |
Debugger super-stack | The debugger now provides a view of the superstack for the stopped request. |
Single Module Install Wizard | The install wizard now supports installation of a single URI sourced module. |
DPML Literals passed by reference | DPML literals are now passed by reference with XPointer URIs. |
Dynamic HTTP Bridge Config | The HTTP Bridge config can now be generated dynamically by mapping ffcpl:/etc/HTTPBridgeConfig.xml to the active:http-bridge-config
accessor. |
New system status report | A new system status report provides general system status including uptime |
Processes can now be Killed | It is now possible to kill a process via a new process view control panel |
New MailTransport/Mailbox accessor | A new mail transport provides polled servicing of POP and IMAP mailboxes. The transport can be used as an accessor for
single shot mailbox polling. |
Module Classloader | The module classloader now traverses the super stack module classloader before finally trying the
base JVM classpath. |
Module Installer Supports Rollback | The module installer now supports rollback allowing module configuration to be reverted to a previous known state. |
Accessor migration into ext-sys module | System level accessors that were previously held in ext-layer1 and ext-xml-ura (eg active:log) have been migrated to the ext-sys module.
ext-sys is now the standard library to import for system-level accessors and services. |
MailTransport | A new mail transport allows mailboxes to be polled for mail messages and issued to NetKernel for processing. |
Image Utilities | New image utilities include an Image parser, serializer and fragmentors for image pipelines. |
Cache Reap Fixed | A cache reap cycle bug which could have lead to deadlock in highly loaded systems has been fixed. |
Xalan Memory Leak Fixed | A custom build of Xalan is supplied which fixes a serious Xalan bug which resulted in memory leaks after system restarts. |
| 1.3.0 | 2004-06-04 |
SOAP Infrastructure | A comprehensive SOAP infrastructure allows NetKernel to host SOAP services, act as client to remote services and
processes SOAP messages with a suite of tools. |
xslt2 | A new xslt2 accessor provides W3C XSLT v 2.0 compatible transformations |
xpath2eval | A new xpath2eval accessor provides W3C XPATH v 2.0 xpath evaluation |
STM | A fix was made to the parameter substitution code to prevent the stm namespace declaration appearing in result documents |
Updated XML Libraries | The Xalan and Xerces Apache libraries have been updated to the latest 2.6.x releases. |
SOAP HTTP Binding | A SOAPMode has been added to the HTTP Bridge Accessor to support SOAP 1.1 and 1.2 HTTP Bindings. |
DOMXDA | A new declareNS method allows namespace declarations to be made at an XPath location. Other methods were updated to
ensure that changes to namespaces are reflected in the Xpath prefix resolver. |
DOM2SAX and SAX2DOM Transreptors | New transreptors enable DOM and SAX XML Aspects to be used transparently within any processing pipeline. |
Debugger Dependency Introspection | The debugger now display the dependency hierarchy of resultant resources when
a request is stopped post-execution. |
Front-end Error Handler | The front-end fulcrum now formats exceptions using a default error handler. |
Transaction Report Enhanced | New columns of total elapsed time and total local time have been added to
the transaction report to aid performance tuning. |
Kernel Error Handling | Minor changes to the Kernel error handling to improve formatting when nesting NetKernelExceptions inside
non-NetKernelExceptions |
Documentation System Tuned | The documentation system performance has been improved for the following
cases: first document, subsequent documents, reindexing documents. |
| 1.2.1 | 2004-05-13 |
Front-end Fulcrum | Some minor configuration changes were made to the Front End fulcrum. |
| 1.2.0 | 2004-04-27 |
Structured Documentation | Based on user feedback the documentation has been completely restructured and improved. |
HTTP Transport |
The HTTP transport has been refactored into a low-level HTTP transport and a high-level HTTP adaptor bridge.
The bridge processes the raw HTTP request and response from the transport and provides high-level application
support such as HTTP Header extraction, method type, parameter and query processing...
|
RDBMS Blob support | mod_db now provides accessors for getting and setting RDBMS blobs |
Faster Startup | The post-boot Module Deployment Verification has been optimized |
Deprecated create() factory methods on Aspect implementations | The create factory methods have been deprecated. The old API convention was ambiguous
as it generated a representation from a method on the aspect. This was contrary to the RAT abstraction. |
Win32 URL Resource Loading | The JDK 1.4.x has a bug in File.getURL() which fails to escape whitespace in a Win32 filename - this
problem has been fixed. |
| 1.1.1 | 2004-03-12 |
Kernel Cache Manager | The cache manager has been tweaked to support the L1, L2 caches |
Cache | The standard cache now has a file-based L2 cache. Cached resources are now automatically migrated from the in-memory L1 cache
to the file-based L2 cache. |
SMTP Server | New SMTP Server module provides email message queue for Mulitpart MIME email messages. |
DPML | Set intermediate accessor added - by default DPML results are cacheable, this accessor allows a process to explicitly
declare its result intermediate. |
formURIEncode/Decode | Utility accessors to encode/decode between NVP and x-form-url-encoded binary stream. |
get/setURIQuery | Utility accessors to get URI query parts as NVP and set query from NVP. |
mod_db | Some minor updates to the XML result set code. Configuration now supports separate user and password fields. HSQLDB embedded
SQL database provided as lib for development/testing/demos. |
XRL | XRL mapper results are now cacheable - previously they defaulted to intermediate. |
HTML Serializer | Apostrophe escaping is now automatic for XHTML. |
Doc Engine | The dynamic menu generator has been improved. |
Cache Performance Analysis Document | A document presenting performance/cache trade-offs and cache optimizations. |
HTTP | Redirects now set expirey header. |
| 1.1.0 | 2004-02-24 |
Kernel Scheduler | The Kernel scheduler now supports a debug API. It features improved deadlock prevention/detection. Scheduler
thread management has also been improved. |
Debugger | A new debugger application enables detailed inspection and examination of request state. |
XForms | The XForms module now uses Chiba 0.9.4 for the XForm model. The controller interface has been
extended to support submission/instance URIs |
Session | Revised session mapper adds throttle, variable timeout, prevents the potential of unbounded memory use. |
attachDependency Acccessor | Allows a dependent resource to be explicitly attached to another resource as a dependency. |
Lucene Index | The lucene XML indexer now supports additional named indexes. |
WebDAV module | A new WebDAV client module add accessors for interacting with a WebDAV repository. |
Module Installer Fix | The module installer now correctly provides version number on expanded JAR files. |
DPML | this:param / this:param:* / this:session:* now support EXISTS - means no longer need exception blocks to handle defaults. |
HTTP Transport | HTTP Status Codes now use correct defaults |
XInclude | Updated to be complient with latest W3C spec. |
Documentation | Some errata fixes in documentation have been made. |
| 1.0.0 | 2004-01-15 |
NetKernel Control Interface | All control operations of NetKernel are exposed via HTTP on port 1060. A control panel
provides access to all NetKernel administration tools and services. |
NetKernel v2.2.0 Hot/Cold Restart | NetKernel now supports both Cold and Hot restart. Cold restart quickly reboots the entire
OS stack without stopping the JVM however all transport requests are lost during the reboot. Hot Restart
reboots the system and detects/installs new or updated modules based on version number - it
preserves all transport requests so an application can be patched/upgraded with no loss of service |
NetKernel v2.2.0 Memory Optimizations | The Kernel and some XML modules have been optimized to minimize object creation - memory footprint can be up
to 50% lower in some applications |
NetKernel v2.2.0 Improved performance | General optimization and refinements have provide significant performance gains. |
NetKernel v2.2.0 Hot System Config | The Kernel can now be configured at runtime - Threads counts, Throttle parameters, Housekeeping and many other Kernel settings
can now be changed at runtime. |
Dynamic Entrypoint Management | A new entrypoint managment system is provided. All modules can now be dynamically deployed, there entrypoints will be
detected and published on the admin interface. Documentation can be automatically discovered and indexed. |
New Documentation System | Documents are dynamically discovered in installed modules and full-text indexing is performed. |
Front/Backend Fulcrums | The system now ships with a front-end fulcrum which provides an HTTP transport on port 8080 - applications should be installed
here. The backend fulcrum provides an HTTP transport on port 1060 and provides the NetKernel managment interface with control panel
and documentation. |
HTTP Proxy Configuration | The HTTP proxy can now be set and modified at runtime |
data: URIs supported | The data: URI scheme is now supported. data: is a IETF draft URI type that enables in-line literal
data to be placed in a URI. |
Image Library Module | A new set of image processing accessor provide useful utilities. |
BootLoader | The Kernel is now booted from a BootLoader. This enables the Kernel to be upgraded at runtime. |
Runtime Inspection of System Log | The System log can now be inspected interactively at runtime. |
Transport View | The current transport configurations can be viewed from the control panel |
Improved Resource Trace Tool | The resource trace tool has been enhanced - it can now issue a request and show the results |
RDBMS Database Module | A new suite of RDBMS database accessors has been added. |
Trailmaps | New demonstrations and worked examples are provided in the trailmaps section of the documentation. |
DPML Cookbook | This allows DPML examples to be tried out and enables interactive editing and execution of the DPML |
Cummulative v Local Time on Transaction Report | The transaction report now provides statistics on the local time a request spends in an accessor.
This is useful for performance analysis. |
Full XQuery Support | XQuery implementation is now 100% compliant with the W3C XQuery specification. XQueries are now compiled and cached rather
than interpreted. |
Multiple Parameters in DPML | DPML now allows any named argument to be provided to an instruction. This means that XSLT/XQuery can receive multiple
parameters. It also enables accessors to be more flexible. |
JMX Deprecated | JMX has been deprecated though is still available for download. All administration is now provided by the
HTTP admin interface on port 1060 - this is more flexible and also more secure as only the 1060 port needs to be locked down
on a server. Also admin can now be tunnelled over SSH (not possible with JMX). |
GoldenThread Accessors | New accessors allow virtual URIs to be attached to any process result. The URI Golden Thread can be cut at any time
and all dependent resources are instantly invalidated. Very useful for RDBMS and integration of legacy processing. |
In-tray Transport | A new transport allows an in-directory to out-directory processor. See PDF Distiller trailmap |
HTTP Transport | HTTP transport now supports file uploads. |
Module GateKeeper | A simple declarative way of adding security to a module. It provides zone-based access control using the requested URI. |
Abstract Session Support | The session module provides declarative mapping of HTTP Cookies to Session URIs and is extensible to
other transport types. |
Improved New-Module Wizard | The new module wizard enables creation and installation of new modules. It has options
to initialise features such as entrypoints and accessors. It automatically configures and
installs a new module ready for a developer to populate it's services. |
Install Wizard | The install wizard connects to 1060.org to provide managements and installation of modules. New modules and
applications can be installed dynamically. |
Throttle View | The transport throttle can now be inspected to see a dynamic view of server load
and service levels. |
| 0.7.0 | 2003-10-08 |
Internal request support added to trace tool | A checkbox has been added to the trace tool in ext_introspect to
allow tracing an instruction that originates inside a module rather than
one entering a module. |
New XRL CMS solution | Full extensible content management solution released. This is used to power the
1060 Research and 1060 org sites though is not yet integrated into the distribution
documentation. |
Denial of service attack defence increased | The throttle works by limiting the maximum number of concurrent
requests that the kernel will process. The excess requests are queued.
This enhancement limits the size that the queue will grow to by returning
a system busy exception quickly. This gives load buffering without the
chance of unbounded queue sizes causing out-of-memory errors. Full
configuration is available in system.xml |
Servlet support added |
A Servlet is supplied which starts NetKernel and directs all requests to it. This
is a useful deployment option for those who require servlet support.
|
| 0.6.0 | 2003-09-22 |
Ext_xml module refactored | The ext_xml [urn:org:ten60:netkernel:ext:xml] module has been refactored into
ext_xml-core [urn:org:ten60:netkernel:ext:xml:core] which contains the core XML APIs and
utilities and ext_xml-ura [urn:org:ten60:netkernel:ext:xml:ura] which contains only the standard XML accessors.
This is cleaner and removes a number of circular dependencies. |
file: sink support added to NewSimpleNetAccessor | ext_layer1. Now supports sinking to file: URI's. Enables full filesystem interaction. |
New trace tool with module context | New trace introspection tool added. http://localhost:1060/introspect/trace. The trace accessor
has been enhanced to enable traces to be issued in the context of a module. |
New mod_cgi | Added module to support CGI access from NetKernel. Includes support for PHP |
New init process/system integrity check | Added kernel support for a post boot, init process. Specified in system.xml. Salisbury
distribution now does post boot system integrity check of all modules |
New module dependency report | A new introspection tool http://localhost:1060/introspect/dependencies allows module dependencies to be viewed. |
New module wizard | Added a new wizard to help create new modules. |
New installer | Moved to IzPack installer added improved package management, thanks to Julien Ponge for IzPack |
Module Manager supports XAR *or* JARs | Developers found it difficult to handle .xar archives with IDEs. The module manager now supports both .xar and .jar
archived module extensions in a module directory. By default we now ship modules with .jar extension so that they can
be easily mounted by IDEs. |
| 0.5.0 | 2003-09-15 |
Fixed cookie on localhost bug | A simple configuration bug in the distribution modules meant that cookies on localhost broke
the whole distribution. |
Preface
Configuration
