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Add stefgen docs
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‎docs/index.html‎

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@@ -98,6 +98,7 @@ <h2>Write STEF Records</h2>
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<h2>Learn More</h2>
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<ul>
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<li><a href="https://github.com/splunk/stef/blob/main/stef-spec/specification.md">STEF Specification</a> (detailed format and protocol)</li>
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<li><a href="./stefgen.html">Stefgen Code Generator</a> (generate code from STEF schemas)</li>
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<li><a href="./benchmarks.html">Benchmarks</a> (performance results)</li>
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<li><a href="https://github.com/splunk/stef">GitHub Repository</a></li>
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</ul>

‎docs/stefgen.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Stefgen - STEF Code Generator</title>
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<link href="https://fonts.googleapis.com/css?family=Roboto:400,700&display=swap" rel="stylesheet">
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<link rel="stylesheet" href="./style.css">
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/themes/prism.css">
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<link rel="stylesheet" href="./prism-stef.css">
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</head>
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<body>
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<header>
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<h1>Stefgen</h1>
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<nav>
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<a href="./index.html">Home</a>
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<a href="https://github.com/splunk/stef">GitHub</a>
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<a href="https://github.com/splunk/stef/blob/main/stef-spec/specification.md">Specification</a>
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</nav>
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</header>
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<main>
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<p><strong>Stefgen</strong> is a command-line code generator that takes STEF schema files as input and generates type-safe serialization and deserialization code for multiple programming languages. It parses STEF schema definitions and produces optimized code that can efficiently read and write STEF-encoded data.</p>
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<h2>Installation</h2>
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<p>Build stefgen from source:</p>
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<pre><code class="language-bash">cd stefgen
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make build</code></pre>
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<p>This will create the <code>stefgen</code> binary in the <code>bin/</code> directory.</p>
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<h2>Usage</h2>
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<pre><code class="language-bash">stefgen [flags] &lt;path-to-schema-file&gt;</code></pre>
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<h2>Command Line Arguments</h2>
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<table>
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<thead>
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<tr>
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<th>Flag</th>
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<th>Type</th>
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<th>Required</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>-lang</code></td>
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<td>string</td>
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<td>Yes</td>
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<td>Target language for code generation. Supported values: <code>go</code>, <code>java</code></td>
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</tr>
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<tr>
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<td><code>-outdir</code></td>
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<td>string</td>
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<td>Yes</td>
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<td>Output directory where generated source files will be written</td>
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</tr>
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<tr>
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<td><code>-testoutdir</code></td>
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<td>string</td>
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<td>No</td>
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<td>Output directory for test files. If unspecified, defaults to <code>outdir</code>. Only used with <code>-lang=java</code></td>
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</tr>
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<tr>
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<td><code>&lt;schema-file&gt;</code></td>
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<td>path</td>
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<td>Yes</td>
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<td>Path to the STEF schema file (.stef) to process</td>
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</tr>
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</tbody>
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</table>
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<h2>Examples</h2>
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<h3>Generate Go Code</h3>
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<pre><code class="language-bash"># Generate Go code from a STEF schema
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stefgen -lang=go -outdir=./generated schema.stef</code></pre>
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<h3>Generate Java Code</h3>
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<pre><code class="language-bash"># Generate Java code with separate test directory
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stefgen -lang=java -outdir=./src/main/java -testoutdir=./src/test/java schema.stef</code></pre>
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<h3>Generate Java Code (Simple)</h3>
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<pre><code class="language-bash"># Generate Java code with tests in same directory
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stefgen -lang=java -outdir=./java-gen schema.stef</code></pre>
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<h2>Supported Languages</h2>
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<ul>
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<li><strong>Go</strong> - Generates Go structs with serialization methods</li>
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<li><strong>Java</strong> - Generates Java classes with serialization support</li>
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</ul>
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<h2>Generated Code Structure</h2>
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<p>stefgen creates:</p>
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<ul>
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<li>Struct, oneof and multimap definitions matching your STEF schema</li>
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<li>Type-safe accessors for all fields</li>
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<li>Reader for deserialization</li>
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<li>Writer for serialization</li>
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<li>Read/write unit tests with randomized inputs, matching the schema</li>
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</ul>
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<h2>Example Workflow</h2>
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<h3>1. Define Your Schema</h3>
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<p>Create a STEF schema file (e.g., <code>user.stef</code>):</p>
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<pre><code class="language-stef">package userdata
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struct User root {
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Id uint64
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Name string
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}</code></pre>
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<h3>2. Generate Code</h3>
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<pre><code class="language-bash">stefgen -lang=go -outdir=./generated user.stef</code></pre>
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<h3>3. Use Generated Code</h3>
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<p>The generated Go code can then be imported and used in your application:</p>
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<pre><code class="language-go">import "github.com/splunk/stef/go/pkg"
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import "your-module/generated/userdata"
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// Prepare a memory buffer to write the STEF stream to.
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buf := &amp;pkg.MemChunkWriter{}
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// Create a Writer for the JSON-like schema
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w := userdata.NewWriter(buf, pkg.WriterOptions{})
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// Build a record in memory.
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writer.Record.Value.SetId(1234)
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writer.Record.Value.SetName("Foo Bar")
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// Write the record to the stream.
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writer.Write()
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// Flush the stream to the buffer.
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writer.Flush()</code></pre>
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<p class="footer-note">For more information about STEF schema syntax and features, see the <a href="https://github.com/splunk/stef/blob/main/stef-spec/specification.md">STEF Specification</a>.</p>
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</main>
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<script src="https://cdn.jsdelivr.net/npm/[email protected]/prism.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/[email protected]/components/prism-go.min.js"></script>
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<script src="./prism-stef.js"></script>
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</body>
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</html>

‎makefile‎

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cd benchmarks && make all
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.PHONY: build-ci
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build-ci:
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build-ci: docs-validate
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cd stefgen && make all
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cd go/pkg && make all
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cd go/grpc && make

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