!htp #18919 #19519 New JavaDSL for Akka HTTP (#20518)
* !htt #18919 #19519 Align Java HTTP server DSL with Scala
This commits replaces the Java HTTP server DSL with a Java-8 centric one
which exposes all scala DSL concepts to be usable from Java, including
custom directives, (un)marshallers, rejections, headers, and type safety
for path and query parameters.
* Add RequestContext and RouteResult to Java DSL
fix websockets
WIP bring java docs up to date.
This applies some updates to the root-level documentation
* [htp] Fix java documentation to correctly mention timeouts
Timeouts are configured the same in Java and Scala. Hence, linking to the
scala docs for timeouts from Java.
* =htc fix optionalHeaderValueByType in Java
* =htt #20200 fix java testkit always using NoLogging instead logger
* +htt actually run new javadsl tests, allow overriding config
* =htt improve javadsl test infra with more details when fails
* =htt fix bug in wrong path matcher exposed
* +htp add missing remaining path matcher
* =htp Java DSL cookie tests fixed
* =htt Java DSL ParameterDirectivesTest fixed
Protect the tweets from scalariform
Incorrect response expectations in cache condition directives spec fixed
* =htt Path directives for Java DSL
* +!htt PathMatchers rewritten, made uniform and tests passing
* Bugfix in java reject and a little test-boyscouting
* Revert "Incorrect response expectations in cache condition directives spec fixed"
This reverts commit cd50e89d45db010309f8249b090ea654ebb11c7a.
* +htc HttpAPIsTest is compile time only, not for running
Also, moved from the client package since not strictly a client test.
SecurityDirectives passing
Two faulty tests and two actual bugs.
Fix for cache condition spec not working
* Not sending in Unit instad of the implicit magnet in the test
* HeaderMagnet now works as expected
* Java API added for - and + on DateTime
PetStore example and test fixed
* Annotations to make marshalling work without default constructor
* Made model class immutable
Incorrect tests fixed
Some scaladoc boyscouting as bonus
* =htt RequestValTest sprinkled out across multiple directive tests
Client ip extraction test with incorrect header name fixed.
* =htt Incorrect CodingDirectivesTest fixed.
* =htt Bugfix for Java Unmarshaller.firstOf and fixes to JavaRouteTest
* =htt MarshallerTest fixed
* Missing seal signature added to JavaDSL
* More consistent (with Scala) test kit setup for Java
* missing Javadocs added
* Thread.sleep in default exception handler removed
* =htt copy directive docs, prepare for finishing it up
* +htt SecurityDirectives.authorize variants and test coverage added
* +htt Custom headers in Java DSL
* =htt WIP on java docs
* +htp add missing parameterOrDefault directive
Fixed a lot of doc warnings
* =htc intense progress on javadsl docs
* =htc #20470 Link to issue about docs and fix compile error
compile, migration guide
don't mima check http-experimental
* =htt Java DSL doc warnings fixed.
Only `Could not lex literal_block` ones left now
* =htc fix mima settings
* =doc fix MethodDirectives doc test with custom method
* =htc fix coding directives spec after bad merge
* =htc fix concat being corresponding to route() in javadsl
* =htt Disable consistency check for route/concat as it fails only on ci server
* !htt Minor fixes to PathMatchers
2016-05-16 10:38:40 +02:00
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.. _-getFromFile-java-:
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getFromFile
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===========
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Description
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-----------
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Allows exposing a file to be streamed to the client issuing the request.
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The ``unmatchedPath`` (see :ref:`-extractUnmatchedPath-java-`) of the ``RequestContext`` is first transformed by
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the given ``pathRewriter`` function, before being appended to the given directory name to build the final file name.
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To files from a given directory use :ref:`-getFromDirectory-java-`.
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To serve browsable directory listings use :ref:`-getFromBrowseableDirectories-java-`.
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To serve files from a classpath directory use :ref:`-getFromResourceDirectory-java-` instead.
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Note that it's not required to wrap this directive with ``get`` as this directive will only respond to ``GET`` requests.
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.. note::
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The file's contents will be read using an Akka Streams `Source` which *automatically uses
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a pre-configured dedicated blocking io dispatcher*, which separates the blocking file operations from the rest of the stream.
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Note also that thanks to using Akka Streams internally, the file will be served at the highest speed reachable by
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the client, and not faster – i.e. the file will *not* end up being loaded in full into memory before writing it to
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the client.
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Example
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-------
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2016-06-09 21:34:25 +08:00
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.. includecode:: ../../../../code/docs/http/javadsl/server/directives/FileAndResourceDirectivesExamplesTest.java#getFromFile
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