.. Change log Release Notes ############# iPOPO 1.0.1 =========== :Release Date: 2020-11-10 iPOPO ----- * Added a ``RequiresBroadcast`` decorator, which injects a proxy that broadcasts calls to all services matched by the requirement. It also transparently ignores calls when no service matches the requirement. Misc ---- * ``ConfigurationAdmin`` default persistence can now be disabled by setting the ``pelix.configadmin.persistence.default.disable`` framework property to any non-empty value. See `#113 `_ for more details. * Added a ``to_record()`` method in ``LogEntry`` objects. This converts the Pelix entry to a ``logging.LogRecord`` object, which can then be formatted using standard formatters. Note that some information is missing, like the place the log record is from (file path and line). iPOPO 1.0.0 =========== :Release Date: 2020-01-19 Project ------- * The Pelix/iPOPO is now split in two branches: iPOPO (``v1`` branch) and ipopo2 (``v2`` branch). The ``v2`` branch requires Python 3.7+, whereas ``v1`` will keep compatibility with Python 2.7. Pelix ----- * Fixed an error when starting the framework after having loaded native modules, *e.g.* ``numpy``. These modules don't have a ``__path__`` set, which case was not handled when the framework normalizes the existing module paths. * Fixed an invalid import of ``collections`` abstract classes for Python 3.3+ in ``pelix.internal.hooks``. iPOPO 0.8.1 =========== :Release Date: 2018-11-17 Pelix ----- * Fixed a memory leak in the thread pool implementation. The patch comes from issue #35 of the `jsonrpclib-pelix `_ project. Remote Services --------------- * Fixed a deadlock in the Py4J provider (issue #100), contributed by Scott Lewis (@scottslewis). See `pull request #101 `_ for more details. * Use a local ``etcd`` server in Travis-CI instead of a public one. iPOPO 1.0.0 =========== :Release Date: 2018-08-19 Project ------- * Version bump to 0.8 as the addition of Remote Service Admin is a big step forward. * Fixed unit tests for ``pelix.threadpool`` * Added a word about Python 3.7 dataclasses in the iPOPO reference card * All the source code has been reformatted with `black `_ (``black -l 80 pelix``) Remote Services --------------- * Added the implementation of Remote Service Admin OSGi specification, contributed by Scott Lewis (@scottslewis). This is a major feature which intends to be used instead of Pelix Remote Services. The latter will be kept for retro-compatibility reasons. iPOPO 0.7.1 =========== :Release Date: 2018-06-16 Project ------- * Added a CONTRIBUTING description file to describe the code style * The ``zeroconf`` dependency is now forced to version 0.19, to stay compatible with Python 2.7 * Changed them in the documentation (back to standard ReadTheDocs theme) * Added some reference cards in the documentation: initial configuration file, shell, shell report Pelix ----- * Aded support for Event Listeners Hooks. See `pull request #88 `_ for more details. * Fixed ``Framework.delete()`` when framework was already stopped. iPOPO ----- * Added ``@ValidateComponent`` and ``@InvalidateComponent`` decorators. They allow to define callback methods for component in/validation with access to component context and properties (read-only). ``@Validate`` and ``@Invalidate`` decorators are now simple aliases to those decorators. * Checked behaviour with *data classes*, introduced in Python 3.7: all seems to work perfectly. See `issue 89 `_ for more details. Shell ----- * New shell completion system: completion is now extensible and can work with both commands and arguments. This system relies on ``readline``. * Added a TLS version of the shell. Its usage and the generation of certificates are described in the Pelix Shell reference card in the documentation. * ``ShellSession.write_line()`` can now be called without argument (prints an empty line) Misc ---- * Fixed the access bug to the Python LogRecord message in the Log Service iPOPO 0.7.0 =========== :Release Date: 2017-12-30 Project ------- * Removed Python 2.6 compatibility code * New version of the logo, with SVG sources in the repository * Added some tests for ``install_package()`` Pelix ----- * When a bundle is stopped, the framework now automatically releases the services it consumed. This was required to avoid stale references when using (prototype) service factories. **WARNING:** this can lead to issues if you were using stale references to pass information from one bundle version to another (which is bad). * Added support for Prototype Service Factories, which were missing from issue `Service Factories (#75) `_. * Handle deprecation of the ``imp`` module (see #85) * Added a ``delete()`` method to the ``Framework`` class. The ``FrameworkFactory`` class can now be fully avoided by developers. iPOPO 0.6.5 =========== :Release Date: 2017-09-17 Project ------- * Project documentation migrated to `Read The Docs `_ as the previous documentation server crashed. All references to the previous server (``coderxpress.net``) have been removed. * The documentation is being completely rewritten while it is converted from Dokuwiki to Sphinx. * Removed Pypy 3 from Travis-CI/Tox tests, as it is not compatible with pip. Pelix ----- * The import path normalization now ensures that the full path of the initial working directory is stored in the path, and that the current working directory marker (empty string) is kept as the first entry of the Python path. * Merged `pull request #65 `_, to ignore import errors when normalizing the Python path. * Merged `pull request #68 `_, correcting the behaviour of the thread pool. iPOPO ----- * The ``@Validate`` method of components is now always called after the bundle activator has returned. (`#66 `_) * Added a ``get_instance(name)`` method to access to the component instance object by its name. (`#74 `_) HTTP ---- * Added some utility methods to ``HttpServletRequest``: * ``get_command()``: get the HTTP command of the request * ``get_prefix_path()``: get the servlet prefix path * ``get_sub_path()``: get the part of the path corresponding to the servlet (*i.e.* without the prefix path) * ``get_servlet()`` now returns the servlet prefix along with the servlet and the server parameters. * Added a ``pelix.https`` service property and an ``is_https()`` service method to indicate that the server uses HTTPS. * Added a utility module, ``pelix.http.routing``, which eases the routing of HTTP requests with decorators like ``@Http``, ``@HttpGet``... * Merged `pull request #70 `_, avoiding remote HTTP servlets to be used by the local HTTP server. Remote Services --------------- * JSON-RPC and XML-RPC transports providers now support HTTPS. * Added a `Redis `_-based discovery provider, working with all HTTP-based transport providers. Shell ----- * Added the *Configuration Handler*, which allows to give a JSON file to set the initial configuration of a framework: properties, bundles, instances, ... iPOPO 0.6.4 =========== :Release Date: 2016-06-12 iPOPO ----- * Added ``@RequiresVariableFilter``, which works like ``@Requires`` but also supports the use of component properties as variables in LDAP filter. * Added ``@HiddenProperty``, which extends ``@Property``, but ensures that the property key and value won't be seen in the description API nor in the shell. (it will stay visible using the standard reflection API of Python) HTTP Service ------------ * The HTTP basic component now support HTTPS. It is activated when given two files (a certificate and a key) in its component properties. A password can also be given if the key file is encrypted. This is a prototype feature and should be used carefully. Also, it should not be used with remote services. Services -------- * A new *log service* has been added to this version, though the ``pelix.misc.log`` bundle. It provides the OSGi API to log traces, but also keeps track of the traces written with the ``logging`` module. The log entries can be accessed locally (but not through remote services). They can be printed in the shell using commands provided by pelix.shell.log. iPOPO 0.6.3 =========== :Release Date: 2015-10-23 Project ------- * iPOPO now has a logo ! (thanks to @debbabi) * README file has been rewritten * Better PEP-8 compliance * Updated ``jsonrpclib-pelix`` requirement version to 0.2.6 Framework --------- * Optimization of the service registry (less dictionaries, use of sets, ...) * Added the ``hide_bundle_services()`` to the service registry. It is by the framework to hide the services of a stopping bundle from ``get_service_reference`` methods, and before those services will be unregistered. * Removed the deprecated ``ServiceEvent.get_type()`` method iPOPO ----- * Optimization of StoredInstance (handlers, use of sets, ...) HTTP Service ------------ * Added a ``is_header_set()`` method to the HTTPServletResponse bean. * Response headers are now sent on ``end_headers()``, not on ``set_header()``, to avoid duplicate headers. * The request queue size of the basic HTTP server can now be set as a component property (``pelix.http.request_queue_size``) Remote Services --------------- * Added support for keyword arguments in most of remote services transports (all except XML-RPC) * Added support for ``pelix.remote.export.only`` and ``pelix.remote.export.none`` service properties. ``pelix.remote.export.only`` tells the exporter to export the given specifications only, while ``pelix.remote.export.none`` forbids the export of the service. Shell ----- * The ``pelix.shell.console`` module can now be run as a main script * Added the *report* shell command * Added the name of *varargs* in the signature of commands * Corrected the signature shown in the help description for static methods * Corrected the *thread* and *threads* shell commands for Pypy Utilities --------- * Updated the MQTT client to follow the new API of Eclipse Paho MQTT Client Tests ----- * Travis-CI: Added Python 3.5 and Pypy3 targets * Better configuration of coverage * Added tests for the remote shell * Added tests for the MQTT client and for MQTT-RPC iPOPO 0.6.2 =========== :Release Date: 2015-06-17 iPOPO ----- * The properties of a component can be updated when calling the ``retry_erroneous()`` method. This allows to modify the configuration of a component before trying to validate it again (HTTP port, ...). * The ``get_instance_details()`` dictionary now always contains a *filter* entry for each of the component requirement description, even if not filter has been set. HTTP Service ------------ * Protection of the ``ServletRequest.read_data()`` method against empty or invalid ``Content-Length`` headers Shell ----- * The ``ipopo.retry`` shell command accepts properties to be reconfigure the instance before trying to validate it again. * The bundle commands (*start*, *stop*, *update*, *uninstall*) now print the name of the bundle along with its ID. * The ``threads`` and ``threads`` shell commands now accept a stack depth limit argument. iPOPO 0.6.1 =========== :Release Date: 2015-04-20 iPOPO ----- * The stack trace of the exception that caused a component to be in the ``ERRONEOUS`` state is now kept, as a string. It can be seen through the ``instance`` shell command. Shell ----- * The command parser has been separated from the shell core service. This allows to create custom shells without giving access to Pelix administration commands. * Added ``cd`` and ``pwd`` shell commands, which allow changing the working directory of the framework and printing the current one. * Corrected the encoding of the shell output string, to avoid exceptions when printing special characters. Remote Services --------------- * Corrected a bug where an imported service with the same endpoint name as an exported service could be exported after the unregistration of the latter. iPOPO 0.6.0 =========== :Release Date: 2015-03-12 Project ------- * The support of Python 2.6 has been removed Utilities --------- * The XMPP bot class now supports anonymous connections using SSL or StartTLS. This is a workaround for `issue 351 `_ of `SleekXMPP `_. iPOPO 0.5.9 =========== :Release Date: 2015-02-18 Project ------- * iPOPO now works with IronPython (tested inside Unity 3D) iPOPO ----- * Components raising an error during validation goes in the ``ERRONEOUS`` state, instead of going back to ``INVALID``. This avoids trying to validate them automatically. * The ``retry_erroneous()`` method of the iPOPO service and the ``retry`` shell command allows to retry the validation of an ``ERRONEOUS`` component. * The ``@SingletonFactory`` decorator can replace the ``@ComponentFactory`` one. It ensures that only one component of this factory can be instantiated at a time. * The ``@Temporal`` requirement decorator allows to require a service and to wait a given amount of time for its replacement before invalidating the component or while using the requirement. * ``@RequiresBest`` ensures that it is always the service with the best ranking that is injected in the component. * The ``@PostRegistration`` and ``@PreUnregistration`` callbacks allows the component to be notified right after one of its services has been registered or will be unregistered. HTTP Service ------------ * The generated 404 page shows the list of registered servlets paths. * The 404 and 500 error pages can be customized by a hook service. * The default binding address is back to "0.0.0.0" instead of "localhost" (for those who used the development version). Utilities --------- * The ``ThreadPool`` class is now a cached thread pool. It now has a minimum and maximum number of threads: only the required threads are alive. A thread waits for a task during 60 seconds (by default) before stopping. iPOPO 0.5.8 =========== :Release Date: 2014-10-13 Framework --------- * ``FrameworkFactory.delete_framework()`` can be called with ``None`` or without argument. This simplifies the clean up afters tests, etc. * The list returned by ``Framework.get_bundles()`` is always sorted by bundle ID. iPOPO ----- * Added the ``immediate_rebind`` option to the ``@Requires`` decorator. This indicates iPOPO to not invalidate then re-validate a component if a service can replace an unbound required one. This option only applies to non-optional, non-aggregate requirements. Shell ----- * The I/O handler is now part of a ``ShellSession`` bean. The latter has the same API as the I/O handler so there is no need to update existing commands. I/O Handler write methods are now synchronized. * The shell supports variables as arguments, *e.g.* ``echo $var``. See `string.Template `_ for more information. The Template used in Pelix Shell allows ``.`` (dot) in names. * A special variable ``$?`` stores the result of the last command which returned a result, *i.e.* anything but ``None`` or ``False``. * Added *set* and *unset* commands to work with variables * Added the *run* command to execute a script file. * Added protection against ``AttributeError`` in *threads* and *thread* iPOPO 0.5.7 =========== :Release Date: 2014-09-18 Project ------- * Code review to be more PEP-8 compliant * `jsonrpclib-pelix `_ is now an install requirement (instead of an optional one) Framework --------- * Forget about previous global members when calling ``Bundle.update()``. This ensures to have a fresh dictionary of members after a bundle update * Removed ``from pelix.constants import *`` in ``pelix.framework``: only use ``pelix.constants`` to access constants Remote Services --------------- * Added support for endpoint name reuse * Added support for synonyms: specifications that can be used on the remote side, or which describe a specification of another language (*e.g.* a Java interface) * Added support for a ``pelix.remote.export.reject`` service property: the specifications it contains won't be exported, event if indicated in ``service.exported.interfaces``. * JABSORB-RPC: * Use the common ``dispatch()`` method, like JSON-RPC * MQTT(-RPC): * Explicitly stop the reading loop when the MQTT client is disconnecting * Handle unknown correlation ID Shell ----- * Added a ``loglevel`` shell command, to update the log level of any logger * Added a ``--verbose`` argument to the shell console script * Remote shell module can be ran as a script HTTP Service ------------ * Remove double-slashes when looking for a servlet XMPP ---- * Added base classes to write a XMPP client based on `SleekXMPP `_ * Added a XMPP shell interface, to control Pelix/iPOPO from XMPP Miscellaneous ------------- * Added an IPv6 utility module, to setup double-stack and to avoids missing constants bugs in Windows versions of Python * Added a ``EventData`` class: it acts like ``Event``, but it allows to store a data when setting the event, or to raise an exception in all callers of ``wait()`` * Added a ``CountdownEvent`` class, an ``Event`` which is set until a given number of calls to ``step()`` is reached * ``threading.Future`` class now supports a callback methods, to avoid to actively wait for a result. iPOPO 0.5.6 =========== :Release Date: 2014-04-28 Project ------- * Added samples to the project repository * Removed the static website from the repository * Added the project to `Coveralls `_ * Increased code coverage Framework --------- * Added a ``@BundleActivator`` decorator, to define the bundle activator class. The ``activator`` module variable should be replaced by this decorator. * Renamed specifications constants: from ``XXX_SPEC`` to ``SERVICE_XXX`` iPOPO ----- * Added a *waiting list* service: instantiates components as soon as the iPOPO service and the component factory are registered * Added ``@RequiresMap`` handler * Added an ``if_valid`` parameter to binding callbacks decorators: ``@Bind``, ``@Update``, ``@Unbind``, ``@BindField``, ``@UpdateField``, ``@UnbindField``. The decorated method will be called if and only if the component valid. * The ``get_factory_context()`` from ``decorators`` becomes public to ease the implementation of new decorators Remote Services --------------- * Large rewriting of Remote Service core modules * Now using OSGi Remote Services properties * Added support for the OSGi EDEF file format (XML) * Added an abstract class to easily write RPC implementations * Added mDNS service discovery * Added an MQTT discovery protocol * Added an MQTT-RPC protocol, based on Node.js `MQTT-RPC module `_ * Added a Jabsorb-RPC transport. Pelix can now use Java services and vice-versa, using: * `Cohorte Remote Services `_ * `Eclipse ECF `_ and the `Jabsorb-RPC provider `_ Shell ----- * Enhanced completion with ``readline`` * Enhanced commands help generation * Added arguments to filter the output of ``bl``, ``sl``, ``factories`` and ``instances`` * Corrected ``prompt`` when using ``readline`` * Corrected ``write_lines()`` when not giving format arguments * Added an ``echo`` command, to test string parsing Services -------- * Added support for *managed service factories* in ConfigurationAdmin * Added an EventAdmin-MQTT bridge: events from EventAdmin with an ``event.propagate`` property are published over MQTT * Added an early version of an MQTT Client Factory service Miscellaneous ------------- * Added a ``misc`` package, with utility modules and bundles: * ``eventadmin_printer``: an EventAdmin handler that prints or logs the events it receives * ``jabsorb``: converts dictionary from and to the Jabsorb-RPC format * ``mqtt_client``: a wrapper for the `Paho `_ MQTT client, used in MQTT discovery and MQTT-RPC. iPOPO 0.5.5 =========== :Release Date: 2013-11-15 Project ------- The license of the iPOPO project is now the `Apache Software License 2.0 `_. Framework --------- * ``get_*_service_reference*()`` methods have a default LDAP filter set to ``None``. Only the service specification is required, event if set to ``None``. * Added a context ``use_service(context, svc_ref)``, that allows to consume a service in a ``with`` block. iPOPO ----- * Added the *Handler Factory* pattern: all instance handlers are created by their factory, called by iPOPO according to the handler IDs found in the factory context. This will simplify the creation of new handlers. Services -------- * Added the ``ConfigurationAdmin`` service * Added the ``FileInstall`` service iPOPO 0.5.4 =========== :Release Date: 2013-10-01 Project ------- * Global speedup replacing ``list.append()`` by ``bisect.insort()``. * Optimizations in handling services, components and LDAP filters. * Some classes of Pelix framework and iPOPO core modules extracted to new modules. * Fixed support of Python 2.6. * Replaced Python 3 imports conditions by *try-except* blocks. iPOPO ----- * ``@Requires`` accepts only one specification * Added a context ``use_ipopo(bundle_context)``, to simplify the usage of the iPOPO service, using the keyword ``with``. * ``get_factory_details(name)`` method now also returns the ID of the bundle provided the component factory, and the component instance properties. * Protection of the unregistration of factories, as a component can kill another one of the factory during its invalidation. Remote Services --------------- * Protection of the unregistration loop during the invalidation of JSON-RPC and XML-RPC exporters. * The *Dispatcher Servlet* now handles the *discovered* part of the discovery process. This simplifies the *Multicast Discovery* component and suppresses a socket bug/feature on BSD (including Mac OS). Shell ----- * The help command now uses the ``inspect`` module to list the required and optional parameters. * ``IOHandler`` now has a ``prompt()`` method to ask the user to enter a line. It replaces the ``read()`` method, which was to buggy. * The ``make_table()`` method now accepts generators as parameters. * Remote commands handling removed: ``get_methods_names()`` is not used anymore. iPOPO 0.5.3 =========== :Release Date: 2013-08-01 iPOPO ----- * New ``get_factory_details(name)`` method in the iPOPO service, acting like ``get_instance_details(name)`` but for factories. It returns a dictionary describing the given factory. * New ``factory`` shell command, which describes a component factory: properties, requirements, provided services, ... HTTP Service ------------ * Servlet exceptions are now both sent to the client and logged locally Remote Services --------------- * Data read from the servlets or sockets are now properly converted from bytes to string before being parsed (Python 3 compatibility). Shell ----- * Exceptions are now printed using ``str(ex)`` instead of ``ex.message`` (Python 3 compatibility). * The shell output is now flushed, both by the shell I/O handler and the text console. The remote console was already flushing its output. This allows to run the Pelix shell correctly inside Eclipse. iPOPO 0.5.2 =========== :Release Date: 2013-07-19 iPOPO ----- * An error is now logged if a class is manipulated twice. Decorators executed after the first manipulation, i.e. upon ``@ComponentFactory()``, are ignored. * Better handling of inherited and overridden methods: a decorated method can now be overridden in a child class, with the name, without warnings. * Better error logs, with indication of the error source file and line HTTP Service ------------ * New servlet binding parameters: * ``http.name``: Name of HTTP service. The name of component instance in the case of the basic implementation. * ``http.extra``: Extra properties of the HTTP service. In the basic implementation, this the content of the ``http.extra`` property of the HTTP server component * New method ``accept_binding(path, params)`` in servlets. This allows to refuse the binding with a server before to test the availability of the registration path, thus to avoid raising a meaningless exception. Remote Services --------------- * End points are stored according to their framework * Added a method ``lost_framework(uid)`` in the registry of imported services, which unregisters all the services provided by the given framework. Shell ----- * Shell *help* command now accepts a command name to print a specific documentation iPOPO 0.5.1 =========== :Release Date: 2013-07-05 Framework --------- * ``Bundle.update()`` now logs the SyntaxError exception that be raised in Python 3. HTTP Service ------------ * The HTTP service now supports the update of servlet services properties. A servlet service can now update its registration path property after having been bound to a HTTP service. * A *500 server error* page containing an exception trace is now generated when a servlet fails. * The ``bound_to()`` method of a servlet is called only after the HTTP service is ready to accept clients. Shell ----- * The remote shell now provides a service, ``pelix.shell.remote``, with a ``get_access()`` method that returns the *(host, port)* tuple where the remote shell is waiting for clients. * Fixed the ``threads`` command that wasn't working on Python 3. iPOPO 0.5 ========= :Release Date: 2013-05-21 Framework --------- * ``BundleContext.install_bundle()`` now returns the ``Bundle`` object instead of the bundle ID. ``BundleContext.get_bundle()`` has been updated to accept both IDs and ``Bundle`` objects in order to keep a bit of compatibility * ``Framework.get_symbolic_name()`` now returns ``pelix.framework`` instead of ``org.psem2m.pelix`` * ``ServiceEvent.get_type()`` is renamed ``get_kind()``. The other name is still available but is declared deprecated (a warning is logged on its first use). * ``BundleContext.install_visiting(path, visitor)``: visits the given path and installs the found modules if the visitor accepts them * ``BundleContext.install_package(path)`` (*experimental*): * Installs all the modules found in the package at the given path * Based on ``install_visiting()`` iPOPO ----- * Components with a ``pelix.ipopo.auto_restart`` property set to ``True`` are automatically re-instantiated after their bundle has been updated. Services -------- * Remote Services: use services of a distant Pelix instance * Multicast discovery * XML-RPC transport (not fully usable) * JSON-RPC transport (based on a patched version of jsonrpclib) * EventAdmin: send events (a)synchronously Shell ----- * Shell command methods now take an ``IOHandler`` object in parameter instead of input and output file-like streams. This hides the compatibility tricks between Python 2 and 3 and simplifies the output formatting. iPOPO 0.4 ========= :Release Date: 2012-11-21 Framework --------- * New ``create_framework()`` utility method * The framework has been refactored, allowing more efficient services and events handling iPOPO ----- * A component can provide multiple services * A service controller can be injected for each provided service, to activate or deactivate its registration * Dependency injection and service providing mechanisms have been refactored, using a basic handler concept. Services -------- * Added a HTTP service component, using the concept of *servlet* * Added an extensible shell, interactive and remote, simplifying the usage of a framework instance iPOPO 0.3 ========= :Release Date: 2012-04-13 Packages have been renamed. As the project goes public, it may not have relations to isandlaTech projects anymore. ======================= ================ Previous name New name ======================= ================ psem2m pelix psem2m.service.pelix pelix.framework psem2m.component pelix.ipopo psem2m.component.ipopo pelix.ipopo.core ======================= ================ iPOPO 0.2 ========= :Release Date: 2012-02-07 Version 0.2 is the first public release of the project, under the terms of the `GPLv3 license `_. iPOPO 0.1 ========= :Release Date: 2012-01-20 The first version of the Pelix framework, with packages still named after the ``python.injection`` and PSEM2M (now named Cohorte) projects by isandlaTech (now named Cohorte Technologies). Back then, Pelix (bundles and services) was the most advanced part of the project, iPOPO was only an extension of it to handle basic components. python.injections ================= :Release Date: 2011-12-20 The proof-of-concept package trying to mimic the iPOJO framework in Python 2.6. It only supported basic injections described by decorators.