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<li><a href="#" tabindex="0">Description</a></li>
<li><a href="#method-summary" tabindex="0">Method Summary</a></li>
<li><a href="#method-detail" tabindex="0">Method Details</a>
<ol class="toc-list">
<li><a href="#createRequest(java.lang.String)" tabindex="0">createRequest(String)</a></li>
<li><a href="#createRequest(java.util.List)" tabindex="0">createRequest(List)</a></li>
<li><a href="#extractEmbeddings(org.springframework.ai.embedding.EmbeddingResponse)" tabindex="0">extractEmbeddings(EmbeddingResponse)</a></li>
<li><a href="#extractFirstEmbedding(org.springframework.ai.embedding.EmbeddingResponse)" tabindex="0">extractFirstEmbedding(EmbeddingResponse)</a></li>
<li><a href="#cosineSimilarity(float%5B%5D,float%5B%5D)" tabindex="0">cosineSimilarity(float[], float[])</a></li>
<li><a href="#euclideanDistance(float%5B%5D,float%5B%5D)" tabindex="0">euclideanDistance(float[], float[])</a></li>
<li><a href="#normalize(float%5B%5D)" tabindex="0">normalize(float[])</a></li>
<li><a href="#findMostSimilar(float%5B%5D,java.util.List)" tabindex="0">findMostSimilar(float[], List)</a></li>
<li><a href="#calculateSimilarities(float%5B%5D,java.util.List)" tabindex="0">calculateSimilarities(float[], List)</a></li>
<li><a href="#toDoubleArray(float%5B%5D)" tabindex="0">toDoubleArray(float[])</a></li>
<li><a href="#toFloatArray(double%5B%5D)" tabindex="0">toFloatArray(double[])</a></li>
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<h1 title="Class EmbeddingConverter" class="title">Class EmbeddingConverter</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">com.google.adk.models.springai.EmbeddingConverter</div>
</div>
<section class="class-description" id="class-description">
<hr>
<div class="horizontal-scroll">
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">EmbeddingConverter</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class in java.lang" class="external-link">Object</a></span></div>
<div class="block">Utility class for converting between embedding formats and performing vector operations.
<p>This class provides helper methods for working with embeddings generated by Spring AI models,
including format conversions and similarity calculations.</div>
</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a><wbr>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class in java.lang" class="external-link">Double</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#calculateSimilarities(float%5B%5D,java.util.List)" class="member-name-link">calculateSimilarities</a><wbr>(float[]&nbsp;query,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;float[]&gt;&nbsp;candidates)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Calculate similarity scores between a query and all candidates.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static double</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#cosineSimilarity(float%5B%5D,float%5B%5D)" class="member-name-link">cosineSimilarity</a><wbr>(float[]&nbsp;embedding1,
float[]&nbsp;embedding2)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Calculate cosine similarity between two embedding vectors.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.springframework.ai.embedding.EmbeddingRequest</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createRequest(java.lang.String)" class="member-name-link">createRequest</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class in java.lang" class="external-link">String</a>&nbsp;text)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Create an EmbeddingRequest for a single text input.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.springframework.ai.embedding.EmbeddingRequest</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createRequest(java.util.List)" class="member-name-link">createRequest</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class in java.lang" class="external-link">String</a>&gt;&nbsp;texts)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Create an EmbeddingRequest for multiple text inputs.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static double</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#euclideanDistance(float%5B%5D,float%5B%5D)" class="member-name-link">euclideanDistance</a><wbr>(float[]&nbsp;embedding1,
float[]&nbsp;embedding2)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Calculate Euclidean distance between two embedding vectors.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a><wbr>&lt;float[]&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#extractEmbeddings(org.springframework.ai.embedding.EmbeddingResponse)" class="member-name-link">extractEmbeddings</a><wbr>(org.springframework.ai.embedding.EmbeddingResponse&nbsp;response)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Extract embedding vectors from an EmbeddingResponse.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static float[]</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#extractFirstEmbedding(org.springframework.ai.embedding.EmbeddingResponse)" class="member-name-link">extractFirstEmbedding</a><wbr>(org.springframework.ai.embedding.EmbeddingResponse&nbsp;response)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Extract the first embedding vector from an EmbeddingResponse.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#findMostSimilar(float%5B%5D,java.util.List)" class="member-name-link">findMostSimilar</a><wbr>(float[]&nbsp;query,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;float[]&gt;&nbsp;candidates)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Find the most similar embedding from a list of candidates.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static float[]</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#normalize(float%5B%5D)" class="member-name-link">normalize</a><wbr>(float[]&nbsp;embedding)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Normalize an embedding vector to unit length.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static double[]</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toDoubleArray(float%5B%5D)" class="member-name-link">toDoubleArray</a><wbr>(float[]&nbsp;floatArray)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Convert float array to double array.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static float[]</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toFloatArray(double%5B%5D)" class="member-name-link">toFloatArray</a><wbr>(double[]&nbsp;doubleArray)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Convert double array to float array.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#method-summary" title="class in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="clone()" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="equals(Object)" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="finalize()" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="getClass()" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="hashCode()" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="notify()" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="notifyAll()" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="toString()" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="wait()" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="wait(long)" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="wait(long, int)" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="createRequest(java.lang.String)">
<h3>createRequest</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.springframework.ai.embedding.EmbeddingRequest</span>&nbsp;<span class="element-name">createRequest</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class in java.lang" class="external-link">String</a>&nbsp;text)</span></div>
<div class="block">Create an EmbeddingRequest for a single text input.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>text</code> - The text to embed</dd>
<dt>Returns:</dt>
<dd>EmbeddingRequest for the text</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="createRequest(java.util.List)">
<h3>createRequest</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.springframework.ai.embedding.EmbeddingRequest</span>&nbsp;<span class="element-name">createRequest</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class in java.lang" class="external-link">String</a>&gt;&nbsp;texts)</span></div>
<div class="block">Create an EmbeddingRequest for multiple text inputs.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>texts</code> - The texts to embed</dd>
<dt>Returns:</dt>
<dd>EmbeddingRequest for the texts</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="extractEmbeddings(org.springframework.ai.embedding.EmbeddingResponse)">
<h3>extractEmbeddings</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;float[]&gt;</span>&nbsp;<span class="element-name">extractEmbeddings</span><wbr><span class="parameters">(org.springframework.ai.embedding.EmbeddingResponse&nbsp;response)</span></div>
<div class="block">Extract embedding vectors from an EmbeddingResponse.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>response</code> - The embedding response</dd>
<dt>Returns:</dt>
<dd>List of embedding vectors as float arrays</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="extractFirstEmbedding(org.springframework.ai.embedding.EmbeddingResponse)">
<h3>extractFirstEmbedding</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">float[]</span>&nbsp;<span class="element-name">extractFirstEmbedding</span><wbr><span class="parameters">(org.springframework.ai.embedding.EmbeddingResponse&nbsp;response)</span></div>
<div class="block">Extract the first embedding vector from an EmbeddingResponse.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>response</code> - The embedding response</dd>
<dt>Returns:</dt>
<dd>The first embedding vector, or null if no embeddings</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="cosineSimilarity(float[],float[])">
<h3>cosineSimilarity</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">cosineSimilarity</span><wbr><span class="parameters">(float[]&nbsp;embedding1,
float[]&nbsp;embedding2)</span></div>
<div class="block">Calculate cosine similarity between two embedding vectors.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>embedding1</code> - First embedding vector</dd>
<dd><code>embedding2</code> - Second embedding vector</dd>
<dt>Returns:</dt>
<dd>Cosine similarity score between -1 and 1</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="euclideanDistance(float[],float[])">
<h3>euclideanDistance</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">euclideanDistance</span><wbr><span class="parameters">(float[]&nbsp;embedding1,
float[]&nbsp;embedding2)</span></div>
<div class="block">Calculate Euclidean distance between two embedding vectors.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>embedding1</code> - First embedding vector</dd>
<dd><code>embedding2</code> - Second embedding vector</dd>
<dt>Returns:</dt>
<dd>Euclidean distance</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="normalize(float[])">
<h3>normalize</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">float[]</span>&nbsp;<span class="element-name">normalize</span><wbr><span class="parameters">(float[]&nbsp;embedding)</span></div>
<div class="block">Normalize an embedding vector to unit length.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>embedding</code> - The embedding vector to normalize</dd>
<dt>Returns:</dt>
<dd>Normalized embedding vector</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="findMostSimilar(float[],java.util.List)">
<h3>findMostSimilar</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">findMostSimilar</span><wbr><span class="parameters">(float[]&nbsp;query,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;float[]&gt;&nbsp;candidates)</span></div>
<div class="block">Find the most similar embedding from a list of candidates.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>query</code> - The query embedding</dd>
<dd><code>candidates</code> - List of candidate embeddings</dd>
<dt>Returns:</dt>
<dd>Index of the most similar embedding, or -1 if no candidates</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="calculateSimilarities(float[],java.util.List)">
<h3>calculateSimilarities</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Double.html" title="class in java.lang" class="external-link">Double</a>&gt;</span>&nbsp;<span class="element-name">calculateSimilarities</span><wbr><span class="parameters">(float[]&nbsp;query,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="interface in java.util" class="external-link">List</a>&lt;float[]&gt;&nbsp;candidates)</span></div>
<div class="block">Calculate similarity scores between a query and all candidates.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>query</code> - The query embedding</dd>
<dd><code>candidates</code> - List of candidate embeddings</dd>
<dt>Returns:</dt>
<dd>List of similarity scores</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="toDoubleArray(float[])">
<h3>toDoubleArray</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">double[]</span>&nbsp;<span class="element-name">toDoubleArray</span><wbr><span class="parameters">(float[]&nbsp;floatArray)</span></div>
<div class="block">Convert float array to double array.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>floatArray</code> - The float array</dd>
<dt>Returns:</dt>
<dd>Equivalent double array</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="toFloatArray(double[])">
<h3>toFloatArray</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">float[]</span>&nbsp;<span class="element-name">toFloatArray</span><wbr><span class="parameters">(double[]&nbsp;doubleArray)</span></div>
<div class="block">Convert double array to float array.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>doubleArray</code> - The double array</dd>
<dt>Returns:</dt>
<dd>Equivalent float array</dd>
</dl>
</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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