support module spi

src/main/java/com/alibaba/fastjson/parser/ParserConfig.java

@@ -48,6 +48,7 @@ import com.alibaba.fastjson.asm.ClassReader;
 import com.alibaba.fastjson.asm.TypeCollector;
 import com.alibaba.fastjson.parser.deserializer.*;
 import com.alibaba.fastjson.serializer.*;
+import com.alibaba.fastjson.spi.Module;
 import com.alibaba.fastjson.util.*;
 import com.alibaba.fastjson.util.IdentityHashMap;
 import com.alibaba.fastjson.util.ServiceLoader;
@@ -118,6 +119,7 @@ public class ParserConfig {
     private boolean                                         jacksonCompatible     = false;
 
     public boolean                                          compatibleWithJavaBean = TypeUtils.compatibleWithJavaBean;
+    private List<Module>                                    modules                = new ArrayList<Module>();
 
     {
         denyHashCodes = new long[]{
@@ -448,6 +450,14 @@ public class ParserConfig {
             return derializer;
         }
 
+        for (Module module : modules) {
+            derializer = module.createDeserializer(this, clazz);
+            if (derializer != null) {
+                putDeserializer(type, derializer);
+                return derializer;
+            }
+        }
+
         String className = clazz.getName();
         className = className.replace('$', '.');
 
@@ -1193,4 +1203,8 @@ public class ParserConfig {
     public void register(String typeName, Class type) {
         typeMapping.putIfAbsent(typeName, type);
     }
+
+    public void register(Module module) {
+        this.modules.add(module);
+    }
 }

src/main/java/com/alibaba/fastjson/serializer/SerializeConfig.java

@@ -20,6 +20,7 @@ import com.alibaba.fastjson.annotation.JSONField;
 import com.alibaba.fastjson.annotation.JSONType;
 import com.alibaba.fastjson.parser.deserializer.Jdk8DateCodec;
 import com.alibaba.fastjson.parser.deserializer.OptionalCodec;
+import com.alibaba.fastjson.spi.Module;
 import com.alibaba.fastjson.support.springfox.SwaggerJsonSerializer;
 import com.alibaba.fastjson.util.*;
 import com.alibaba.fastjson.util.IdentityHashMap;
@@ -73,6 +74,8 @@ public class SerializeConfig {
                     4165360493669296979L,
                     4446674157046724083L
             };
+
+    private List<Module>                                    modules                = new ArrayList<Module>();
     
 	public String getTypeKey() {
 		return typeKey;
@@ -471,6 +474,14 @@ public class SerializeConfig {
                 writer = serializers.get(clazz);
             }
         }
+
+        for (Module module : modules) {
+            writer = module.createSerializer(this, clazz);
+            if (writer != null) {
+                serializers.put(clazz, writer);
+                return writer;
+            }
+        }
         
         if (writer == null) {
             String className = clazz.getName();
@@ -802,4 +813,8 @@ public class SerializeConfig {
         this.serializers.clear();
         this.initSerializers();
     }
+
+    public void register(Module module) {
+        this.modules.add(module);
+    }
 }

src/main/java/com/alibaba/fastjson/spi/Module.java

+package com.alibaba.fastjson.spi;
+
+import com.alibaba.fastjson.parser.ParserConfig;
+import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
+import com.alibaba.fastjson.serializer.ObjectSerializer;
+import com.alibaba.fastjson.serializer.SerializeConfig;
+
+public interface Module {
+    ObjectDeserializer createDeserializer(ParserConfig config, Class type);
+    ObjectSerializer createSerializer(SerializeConfig config, Class type);
+}

src/test/java/com/alibaba/json/bvt/ModuleTest.java

+package com.alibaba.json.bvt;
+
+import com.alibaba.fastjson.parser.ParserConfig;
+import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
+import com.alibaba.fastjson.serializer.MiscCodec;
+import com.alibaba.fastjson.serializer.ObjectSerializer;
+import com.alibaba.fastjson.serializer.SerializeConfig;
+import com.alibaba.fastjson.spi.Module;
+import junit.framework.TestCase;
+
+public class ModuleTest extends TestCase {
+    public void test_for_module() throws Exception {
+        ParserConfig config = new ParserConfig();
+        config.register(new MyModuel2());
+        config.register(new MyModuel());
+
+        assertSame(MiscCodec.instance, config.getDeserializer(A.class));
+    }
+
+    public void test_for_module_1() throws Exception {
+        SerializeConfig config = new SerializeConfig();
+        config.register(new MyModuel2());
+        config.register(new MyModuel());
+
+        assertSame(MiscCodec.instance, config.getObjectWriter(A.class));
+    }
+
+    public static class A {
+
+    }
+
+    public static class MyModuel implements Module {
+
+        @Override
+        public ObjectDeserializer createDeserializer(ParserConfig config, Class type) {
+            return MiscCodec.instance;
+        }
+
+        @Override
+        public ObjectSerializer createSerializer(SerializeConfig config, Class type) {
+            return MiscCodec.instance;
+        }
+    }
+
+    public static class MyModuel2 implements Module {
+
+        @Override
+        public ObjectDeserializer createDeserializer(ParserConfig config, Class type) {
+            return null;
+        }
+
+        @Override
+        public ObjectSerializer createSerializer(SerializeConfig config, Class type) {
+            return null;
+        }
+    }
+}