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| <div class="container top-buffer" id="Gora_Gora Compiler Overview"> |
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| <h1 id="introduction">Introduction<a class="headerlink" href="#introduction" title="Permalink">¶</a></h1> |
| <p>The Gora compiler converts JSON files (the schema(s)) into persistent Java classes/data beans. |
| You can then use those classes to interact with a variety of data storage software e.g. the Gora datastore implementations.</p> |
| <p>The compiler is very simple to run. But first you should add the Gora installation directory to your path.</p> |
| <h1 id="usage">Usage<a class="headerlink" href="#usage" title="Permalink">¶</a></h1> |
| <pre><code> $ bin/gora goracompiler |
| </code></pre> |
| <p>results in:</p> |
| <pre><code> $ Usage: GoraCompiler <schema file> <output dir> [-license <id>] |
| <schema file> - individual avsc file to be compiled or a directory path containing avsc files |
| <output dir> - output directory for generated Java files |
| [-license <id>] - the preferred license header to add to the |
| generated Java file. Current options include; |
| ASLv2 (Apache Software License v2.0) |
| AGPLv3 (GNU Affero General Public License) |
| CDDLv1 (Common Development and Distribution License v1.0) |
| FDLv13 (GNU Free Documentation License v1.3) |
| GPLv1 (GNU General Public License v1.0) |
| GPLv2 (GNU General Public License v2.0) |
| GPLv3 (GNU General Public License v3.0) |
| LGPLv21 (GNU Lesser General Public License v2.1) |
| LGPLv3 (GNU Lesser General Public License v2.1) |
| </code></pre> |
| <p>so for example, one would typically enter:</p> |
| <pre><code> $ bin/gora goracompiler gora-tutorial/src/main/avro/pageview.json gora-tutorial/src/main/java/ |
| </code></pre> |
| <p>The schema file is a single JSON file or a directory containing JSON files.</p> |
| <p>The output directory is the destination for the generated Java source files. For example, if you specific src/main/java then the |
| generate source is placed into src/main/java/generated. It's generally a good idea to ignore the generate directory in whatever |
| version control software you're using. You are using version control, right?</p> |
| <p>Finally, the license parameter tells the compile to add a license header to each generated file. Current header options include:</p> |
| <ul> |
| <li>ASLv2 (<a href="http://www.apache.org/licenses/LICENSE-2.0.html">Apache Software License v2.0</a>)</li> |
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| <li>FDLv13 (<a href-"<a href="http://www.gnu.org/copyleft/fdl.html%22%3EGNU">http://www.gnu.org/copyleft/fdl.html">GNU</a> Free Documentation License v1.3)</li> |
| <li>GPLv1 (<a href="http://www.gnu.org/licenses/gpl-1.0.html">GNU General Public License v1.0</a>)</li> |
| <li>GPLv2 (<a href="http://www.gnu.org/licenses/gpl-2.0.html">GNU General Public License v2.0</a>)</li> |
| <li>GPLv3 (<a href="http://www.gnu.org/licenses/gpl-3.0.html">GNU General Public License v3.0</a>)</li> |
| <li>LGPLv21 (<a href="http://www.gnu.org/licenses/lgpl-2.1.html">GNU Lesser General Public License v2.1</a>)</li> |
| <li>LGPLv3 (<a href="http://www.gnu.org/licenses/lgpl-3.0.html">GNU Lesser General Public License v3</a>)</li> |
| </ul> |
| <p>It should be noted that if no license header argument is passed, by default the ASLv2 license profile is selected.</p> |
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