Update sample file paths and add new sample documents for content understanding SDK

Author: Changjian Wang

sdk/contentunderstanding/azure-ai-contentunderstanding/src/samples/java/com/azure/ai/contentunderstanding/samples/Sample01_AnalyzeBinary.java

@@ -52,26 +52,10 @@ public static void main(String[] args) throws IOException {
         // END: com.azure.ai.contentunderstanding.sample01.buildClient
 
         // Load the sample file
-        String filePath = "src/test/resources/sample_invoice.pdf";
+        String filePath = "src/samples/resources/sample_invoice.pdf";
         Path path = Paths.get(filePath);
-
-        byte[] fileBytes;
-        BinaryData binaryData;
-        boolean hasRealFile = Files.exists(path);
-
-        // Check if sample file exists
-        if (!hasRealFile) {
-            System.out.println("⚠️ Sample file not found at " + filePath);
-            System.out.println("Creating a minimal test PDF for demonstration...");
-            // Create a minimal valid PDF for testing
-            String pdfContent
-                = "%PDF-1.4\n1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj 3 0 obj<</Type/Page/MediaBox[0 0 612 792]/Parent 2 0 R/Resources<<>>>>endobj\nxref\n0 4\n0000000000 65535 f\n0000000009 00000 n\n0000000056 00000 n\n0000000115 00000 n\ntrailer<</Size 4/Root 1 0 R>>\nstartxref\n203\n%%EOF";
-            fileBytes = pdfContent.getBytes();
-        } else {
-            fileBytes = Files.readAllBytes(path);
-        }
-
-        binaryData = BinaryData.fromBytes(fileBytes);
+        byte[] fileBytes = Files.readAllBytes(path);
+        BinaryData binaryData = BinaryData.fromBytes(fileBytes);
 
         // BEGIN:ContentUnderstandingAnalyzeBinaryAsync
         SyncPoller<ContentAnalyzerAnalyzeOperationStatus, AnalyzeResult> operation
@@ -99,12 +83,9 @@ public static void main(String[] args) throws IOException {
         }
         // END:ContentUnderstandingExtractMarkdown
 
-        if (hasRealFile && content != null && content.getMarkdown() != null && !content.getMarkdown().isEmpty()) {
+        if (content != null && content.getMarkdown() != null && !content.getMarkdown().isEmpty()) {
             System.out
                 .println("Markdown content extracted successfully (" + content.getMarkdown().length() + " characters)");
-        } else {
-            System.out
-                .println("⚠️ Skipping markdown content validation (using minimal test PDF or no markdown available)");
         }
 
         // BEGIN:ContentUnderstandingAccessDocumentProperties

sdk/contentunderstanding/azure-ai-contentunderstanding/src/samples/java/com/azure/ai/contentunderstanding/samples/Sample10_AnalyzeConfigs.java

@@ -57,8 +57,8 @@ public static void main(String[] args) throws IOException {
         System.out.println("Client initialized successfully");
 
         // BEGIN:ContentUnderstandingAnalyzeWithConfigs
-        // Load local test file
-        Path filePath = Paths.get("src/test/resources/sample_document_features.pdf");
+        // Load local sample file
+        Path filePath = Paths.get("src/samples/resources/sample_document_features.pdf");
         byte[] fileBytes = Files.readAllBytes(filePath);
 
         com.azure.ai.contentunderstanding.models.AnalyzeInput input

sdk/contentunderstanding/azure-ai-contentunderstanding/src/samples/java/com/azure/ai/contentunderstanding/samples/Sample11_AnalyzeReturnRawJson.java

@@ -55,8 +55,8 @@ public static void main(String[] args) throws IOException {
         System.out.println("Client initialized successfully");
 
         // BEGIN:ContentUnderstandingAnalyzeReturnRawJson
-        // Load local test file
-        Path filePath = Paths.get("src/test/resources/sample_invoice.pdf");
+        // Load local sample file
+        Path filePath = Paths.get("src/samples/resources/sample_invoice.pdf");
         byte[] fileBytes = Files.readAllBytes(filePath);
 
         // Prepare request body with binary data using JSON format