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211 lines
7.0 KiB
Markdown
211 lines
7.0 KiB
Markdown
Apache Thrift
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=============
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Introduction
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============
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Thrift is a lightweight, language-independent software stack for
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point-to-point RPC implementation.
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Thrift provides clean abstractions and implementations for data transport,
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data serialization, and application level processing. The code generation
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system takes a simple definition language as input and generates code
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across programming languages that uses the abstracted stack to build
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interoperable RPC clients and servers.
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Thrift makes it easy for programs written in different programming
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languages to share data and call remote procedures. With support
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for [28 programming languages](LANGUAGES.md), chances are Thrift
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supports the languages that you currently use.
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Thrift is specifically designed to support non-atomic version changes
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across client and server code. This allows you to upgrade your
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server while still being able to service older clients; or have newer
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clients issue requests to older servers. An excellent community-provided
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write-up about thrift and compatibility when versioning an API can be
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found in the [Thrift Missing Guide](https://diwakergupta.github.io/thrift-missing-guide/#_versioning_compatibility).
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For more details on Thrift's design and implementation, see the Thrift
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whitepaper included in this distribution, or at the README.md file
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in your particular subdirectory of interest.
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Status
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======
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| Branch | Travis | Appveyor | Coverity Scan | codecov.io | Website |
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| :----- | :----- | :------- | :------------ | :--------- | :------ |
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| [`master`](https://github.com/apache/thrift/tree/master) | [](https://travis-ci.org/apache/thrift/branches) | [](https://ci.appveyor.com/project/ApacheSoftwareFoundation/thrift/history) | [](https://scan.coverity.com/projects/thrift) | | [](https://thrift.apache.org/) |
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| [`0.14.0`](https://github.com/apache/thrift/tree/0.14.0) | [](https://travis-ci.org/apache/thrift/branches) | | | | |
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Releases
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========
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Thrift does not maintain a specific release calendar at this time.
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We strive to release twice yearly. Download the [current release](http://thrift.apache.org/download).
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License
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=======
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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Project Hierarchy
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=================
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thrift/
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compiler/
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Contains the Thrift compiler, implemented in C++.
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lib/
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Contains the Thrift software library implementation, subdivided by
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language of implementation.
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cpp/
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go/
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java/
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php/
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py/
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rb/
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...
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test/
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Contains sample Thrift files and test code across the target programming
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languages.
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tutorial/
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Contains a basic tutorial that will teach you how to develop software
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using Thrift.
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Development
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===========
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To build the same way Travis CI builds the project you should use docker.
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We have [comprehensive building instructions for docker](build/docker/README.md).
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Requirements
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============
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See http://thrift.apache.org/docs/install for a list of build requirements (may be stale). Alternatively, see the docker build environments for a list of prerequisites.
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Resources
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=========
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More information about Thrift can be obtained on the Thrift webpage at:
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http://thrift.apache.org
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Acknowledgments
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===============
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Thrift was inspired by pillar, a lightweight RPC tool written by Adam D'Angelo,
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and also by Google's protocol buffers.
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Installation
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============
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If you are building from the first time out of the source repository, you will
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need to generate the configure scripts. (This is not necessary if you
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downloaded a tarball.) From the top directory, do:
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./bootstrap.sh
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Once the configure scripts are generated, thrift can be configured.
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From the top directory, do:
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./configure
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You may need to specify the location of the boost files explicitly.
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If you installed boost in `/usr/local`, you would run configure as follows:
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./configure --with-boost=/usr/local
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Note that by default the thrift C++ library is typically built with debugging
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symbols included. If you want to customize these options you should use the
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CXXFLAGS option in configure, as such:
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./configure CXXFLAGS='-g -O2'
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./configure CFLAGS='-g -O2'
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./configure CPPFLAGS='-DDEBUG_MY_FEATURE'
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To enable gcov required options -fprofile-arcs -ftest-coverage enable them:
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./configure --enable-coverage
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Run ./configure --help to see other configuration options
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Please be aware that the Python library will ignore the --prefix option
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and just install wherever Python's distutils puts it (usually along
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the lines of `/usr/lib/pythonX.Y/site-packages/`). If you need to control
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where the Python modules are installed, set the PY_PREFIX variable.
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(DESTDIR is respected for Python and C++.)
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Make thrift:
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make
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From the top directory, become superuser and do:
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make install
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Uninstall thrift:
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make uninstall
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Note that some language packages must be installed manually using build tools
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better suited to those languages (at the time of this writing, this applies
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to Java, Ruby, PHP).
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Look for the README.md file in the lib/<language>/ folder for more details on the
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installation of each language library package.
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Package Managers
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================
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Apache Thrift is available via a number of package managers, a list which is
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is steadily growing. A more detailed overview can be found
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[at the Apache Thrift web site under "Libraries"](http://thrift.apache.org/lib/)
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and/or in the respective READMEs for each language under /lib
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Testing
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=======
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There are a large number of client library tests that can all be run
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from the top-level directory.
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make -k check
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This will make all of the libraries (as necessary), and run through
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the unit tests defined in each of the client libraries. If a single
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language fails, the make check will continue on and provide a synopsis
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at the end.
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To run the cross-language test suite, please run:
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make cross
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This will run a set of tests that use different language clients and
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servers.
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