Upgrade logic and structure

README.md

@@ -14,7 +14,7 @@ this project in two ways:
 <dependency>
     <groupId>com.github.jonpereiradev</groupId>
     <artifactId>diff-objects</artifactId>
-    <version>1.1.0</version>
+    <version>1.3.0</version>
 </dependency>
 ```
 
@@ -48,24 +48,26 @@ public class Email {
 ```
 
 ```java
+import com.github.jonpereiradev.diffobjects.DiffConfig;
+
 public class Main {
-    
+
     public static void main(String[] args) {
         User u1 = new User("user1", "123456", LocalDate.now().minusDays(1), true);
         User u2 = new User("user2", "12345678", LocalDate.now(), true);
-        
+
         u1.getEmails().add(new Email("user@gmail.com", true));
         u2.getEmails().add(new Email("user@gmail.com", false));
-        
-        DiffConfiguration configuration = DiffBuilder
-            .map(User.class)
-            .mapping("login")
-            .mapping("password")
-            .mapping("emails", "description")
-            .configuration();
-        
+
+        DiffConfig configuration = DiffBuilder
+                .map(User.class)
+                .mapping("login")
+                .mapping("password")
+                .mapping("emails", "description")
+                .configuration();
+
         List<DiffResult> diffs = DiffObjects.forClass(User.class).diff(u1, u2, configuration);
-        
+
         for (DiffResult diff : diffs) {
             if (!diff.isEquals()) {
                 System.out.println("Field: " + diff.getProperties().get("field"));

pom.xml

@@ -6,7 +6,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.github.jonpereiradev</groupId>
   <artifactId>diff-objects</artifactId>
-  <version>1.2.0</version>
+  <version>1.3.0</version>
   <packaging>jar</packaging>
   <name>${project.groupId}:${project.artifactId}</name>
   <description>API to compare the difference between two objects</description>

src/main/java/com/github/jonpereiradev/diffobjects/DiffConfig.java

@@ -0,0 +1,25 @@
+package com.github.jonpereiradev.diffobjects;
+
+
+import com.github.jonpereiradev.diffobjects.strategy.DiffMetadata;
+
+import java.util.List;
+
+
+/**
+ * Contract of the diff config object that maps the properties being check for diff.
+ *
+ * @author Jonathan Pereira
+ * @version 1.2.0
+ * @since 1.0.0
+ */
+public interface DiffConfig {
+
+    /**
+     * Build the configuration for the instance.
+     *
+     * @return the metadata generated by the instance.
+     */
+    List<DiffMetadata> build();
+
+}

src/main/java/com/github/jonpereiradev/diffobjects/DiffConfigImpl.java

@@ -0,0 +1,60 @@
+package com.github.jonpereiradev.diffobjects;
+
+
+import com.github.jonpereiradev.diffobjects.annotation.DiffOrder;
+import com.github.jonpereiradev.diffobjects.builder.DiffBuilderContext;
+import com.github.jonpereiradev.diffobjects.strategy.DiffMetadata;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+
+/**
+ * Responsible for generate the configuration of the instance.
+ *
+ * @author Jonathan Pereira
+ * @since 1.0.0
+ */
+
+public final class DiffConfigImpl implements DiffConfig {
+
+    private final DiffBuilderContext<?> context;
+    private final List<DiffMetadata> metadataList;
+
+    public DiffConfigImpl(DiffBuilderContext<?> context) {
+        this.context = context;        
+        this.metadataList = new ArrayList<>(context.getMetadataMap().size());
+    }
+
+    /**
+     * Gets the configuration for the instance.
+     *
+     * @return the metadata generated by the instance.
+     */
+    @Override
+    public List<DiffMetadata> build() {
+        if (metadataList.isEmpty()) {
+            boolean sortable = false;
+
+            for (Map.Entry<String, DiffMetadata> entry : context.getMetadataMap().entrySet()) {
+                DiffOrder annotation = entry.getValue().getMethod().getAnnotation(DiffOrder.class);
+
+                if (annotation != null) {
+                    entry.getValue().setOrder(annotation.value());
+                    sortable = true;
+                }
+
+                metadataList.add(entry.getValue());
+            }
+
+            if (sortable) {
+                Collections.sort(metadataList);
+            }
+        }
+
+        return metadataList;
+    }
+
+}

src/main/java/com/github/jonpereiradev/diffobjects/DiffException.java

@@ -12,4 +12,5 @@ public class DiffException extends RuntimeException {
     public DiffException(String message) {
         super(message);
     }
+
 }