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APIs and functionality may change significantly between releases.</p></blockquote><p>SchemaTron is a schema translation toolkit that converts between various schema formats and DataHub's native schema representation. It currently provides robust support for Apache Avro schema translation with a focus on complex schema structures including unions, arrays, maps, and nested records.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="modules">Modules<a href="#modules" class="hash-link" aria-label="Direct link to Modules" title="Direct link to Modules"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="cli-module">CLI Module<a href="#cli-module" class="hash-link" aria-label="Direct link to CLI Module" title="Direct link to CLI Module"></a></h3><p>Command-line interface for converting schemas and emitting them to DataHub.</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Execute from this directory</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">..</span><span class="token plain">/</span><span class="token punctuation" style="color:rgb(199, 146, 234)">..</span><span class="token plain">/</span><span class="token punctuation" style="color:rgb(199, 146, 234)">..</span><span class="token plain">/gradlew :metadata-integration:java:datahub-schematron:cli:run --args</span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token string" style="color:rgb(195, 232, 141)">"-i cli/src/test/resources/FlatUser.avsc"</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="cli-options">CLI Options<a href="#cli-options" class="hash-link" aria-label="Direct link to CLI Options" title="Direct link to CLI Options"></a></h4><ul><li><code>-i, --input</code>: Input schema file or directory path</li><li><code>-p, --platform</code>: Data platform name (default: "avro")</li><li><code>-s, --server</code>: DataHub server URL (default: "http://localhost:8080")</li><li><code>-t, --token</code>: DataHub access token</li><li><code>--sink</code>: Output sink - "rest" or "file" (default: "rest")</li><li><code>--output-file</code>: Output file path when using file sink (default: "metadata.json")</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="library-module">Library Module<a href="#library-module" class="hash-link" aria-label="Direct link to Library Module" title="Direct link to Library Module"></a></h3><p>Core translation logic and models for schema conversion. Features include:</p><ul><li><p>Support for complex Avro schema structures:</p><ul><li>Union types with multiple record options</li><li>Nested records and arrays</li><li>Optional fields with defaults</li><li>Logical types (date, timestamp, etc.)</li><li>Maps with various value types</li><li>Enum types</li><li>Custom metadata and documentation</li></ul></li><li><p>Comprehensive path handling for schema fields</p></li><li><p>DataHub-compatible metadata generation</p></li><li><p>Schema fingerprinting and versioning</p></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="example-schema-support">Example Schema Support<a href="#example-schema-support" class="hash-link" aria-label="Direct link to Example Schema Support" title="Direct link to Example Schema Support"></a></h2><p>The library can handle sophisticated schema structures including:</p><ul><li>Customer profiles with multiple identification types (passport, driver's license, national ID)</li><li>Contact information with primary and alternative contact methods</li><li>Address validation with verification metadata</li><li>Subscription history tracking</li><li>Flexible preference and metadata storage</li><li>Tagged customer attributes</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="development">Development<a href="#development" class="hash-link" aria-label="Direct link to Development" title="Direct link to Development"></a></h2><p>The project includes extensive test coverage through:</p><ul><li>Unit tests for field path handling</li><li>Schema translation comparison tests</li><li>Integration tests with Python reference implementation</li></ul><p>Test resources include example schemas demonstrating various Avro schema features and edge cases.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="contributing">Contributing<a href="#contributing" class="hash-link" aria-label="Direct link to Contributing" title="Direct link to Contributing"></a></h2><p>As this is an incubating project, we welcome contributions and feedback on:</p><ul><li>Additional schema format support</li><li>Improved handling of complex schema patterns</li><li>Enhanced metadata translation</li><li>Documentation and examples</li><li>Test coverage</li></ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="slackUtm_uoBr"><div class="slackUtm_uoBr"><hr>Need more help? 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