goldenChat base source add

ta4j-master/ta4j-examples/src/main/java/ta4jexamples/datasources/http/HttpClientWrapper.java

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+/*
+ * SPDX-License-Identifier: MIT
+ */
+package ta4jexamples.datasources.http;
+
+import java.io.IOException;
+import java.net.http.HttpRequest;
+
+/**
+ * Wrapper around {@link java.net.http.HttpClient} to enable easier testing via
+ * mocking.
+ * <p>
+ * This wrapper provides a simple interface for HTTP operations that can be
+ * easily mocked in unit tests, avoiding the need to mock the final
+ * {@link java.net.http.HttpClient} class directly.
+ */
+public interface HttpClientWrapper {
+
+    /**
+     * Sends the given request using this client, blocking if necessary to get the
+     * response.
+     *
+     * @param <T>     the response body type
+     * @param request the request
+     * @param handler the response body handler
+     * @return the response wrapper
+     * @throws IOException          if an I/O error occurs when sending or receiving
+     * @throws InterruptedException if the operation is interrupted
+     */
+    <T> HttpResponseWrapper<T> send(HttpRequest request, java.net.http.HttpResponse.BodyHandler<T> handler)
+            throws IOException, InterruptedException;
+}