增加asm生成的代码dump功能

邱占波 · 邱占波 · commit d6f8728b6eaa · 2014-09-04T17:42:26.000+08:00
方便测试.
diff --git a/src/main/java/com/alibaba/fastjson/JSON.java b/src/main/java/com/alibaba/fastjson/JSON.java
@@ -61,6 +61,11 @@ public abstract class JSON implements JSONStreamAware, JSONAware {
 
     public static String DEFAULT_TYPE_KEY     = "@type";
 
+    /**
+     * asm生成代码dump路径
+     */
+    public static String DUMP_CLASS = null;
+
     public static int    DEFAULT_PARSER_FEATURE;
     static {
         int features = 0;
diff --git a/src/main/java/com/alibaba/fastjson/parser/deserializer/ASMDeserializerFactory.java b/src/main/java/com/alibaba/fastjson/parser/deserializer/ASMDeserializerFactory.java
@@ -3,6 +3,8 @@
 import static com.alibaba.fastjson.util.ASMUtils.getDesc;
 import static com.alibaba.fastjson.util.ASMUtils.getType;
 
+import java.io.File;
+import java.io.FileOutputStream;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
@@ -19,6 +21,7 @@
 import java.util.TreeSet;
 import java.util.concurrent.atomic.AtomicLong;
 
+import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.asm.ASMException;
 import com.alibaba.fastjson.asm.ClassWriter;
 import com.alibaba.fastjson.asm.FieldVisitor;
@@ -94,9 +97,20 @@ public ObjectDeserializer createJavaBeanDeserializer(ParserConfig config, Class<
         _deserialzeArrayMapping(cw, new Context(className, config, beanInfo, 4));
         byte[] code = cw.toByteArray();
 
-        // org.apache.commons.io.IOUtils.write(code, new java.io.FileOutputStream(
-        // "/usr/alibaba/workspace-3.7/fastjson-asm/target/classes/"
-        // + className + ".class"));
+        if(JSON.DUMP_CLASS != null){
+            FileOutputStream fos=null;
+            try {
+                fos=new FileOutputStream(JSON.DUMP_CLASS+ File.separator
+                        + className + ".class");
+                fos.write(code);
+            }catch (Exception ex){
+                System.err.println("FASTJSON dump class:"+className+"失败:"+ex.getMessage());
+            }finally {
+                if(fos!=null){
+                    fos.close();
+                }
+            }
+        }
 
         Class<?> exampleClass = classLoader.defineClassPublic(className, code, 0, code.length);
 
