Rework report generation

- Adds documentation
- Supports Spring Boot 3 reference style

Author: fabapp2

components/sbm-core/src/main/java/org/springframework/sbm/properties/api/PropertiesSource.java

@@ -28,10 +28,14 @@
 import org.openrewrite.properties.tree.Properties.Entry;
 import org.openrewrite.properties.tree.Properties.File;
 
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 // TODO: fcoi RewriteSourceFileHolder as member ?!
 @Slf4j
@@ -79,6 +83,17 @@ public Optional<String> getProperty(String key) {
 
     }
 
+    public java.util.Properties getProperties() {
+        String collect = getSourceFile().printAll();
+        try {
+            java.util.Properties properties = new java.util.Properties(collect.length());
+            properties.load(new ByteArrayInputStream(collect.getBytes(StandardCharsets.UTF_8)));
+            return properties;
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     private void apply(Recipe r) {
         File rewriteResource = getSourceFile();
         List<Result> results = r.run(List.of(rewriteResource), executionContext).getResults();