From 2fa0e53176010dc6179181a29c4ef3eac7079d1f Mon Sep 17 00:00:00 2001
From: pengzhile <pengzhile@gmail.com>
Date: Fri, 21 Jan 2022 18:19:48 +0800
Subject: [PATCH] 1. update the version of ja-netfilter 2. add example of
 global transformer

Signed-off-by: pengzhile <pengzhile@gmail.com>
---
 pom.xml                                       |  2 +-
 .../my/sample/plugin/GlobalTransformer.java   | 35 +++++++++++++++++++
 .../java/my/sample/plugin/MyPluginEntry.java  |  1 +
 3 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/my/sample/plugin/GlobalTransformer.java

diff --git a/pom.xml b/pom.xml
index 940ab22..065ed7b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
         <dependency>
             <groupId>com.ja-netfilter</groupId>
             <artifactId>ja-netfilter</artifactId>
-            <version>2.2.0</version>
+            <version>2.2.1</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>
diff --git a/src/main/java/my/sample/plugin/GlobalTransformer.java b/src/main/java/my/sample/plugin/GlobalTransformer.java
new file mode 100644
index 0000000..dd53d74
--- /dev/null
+++ b/src/main/java/my/sample/plugin/GlobalTransformer.java
@@ -0,0 +1,35 @@
+package my.sample.plugin;
+
+import com.janetfilter.core.commons.DebugInfo;
+import com.janetfilter.core.plugin.MyTransformer;
+
+public class GlobalTransformer implements MyTransformer {
+    @Override
+    public String getHookClassName() {
+        return null;
+    }
+
+    @Override
+    public void before(String className, byte[] classBytes) throws Exception {
+        DebugInfo.debug("before transform: " + className);
+    }
+
+    @Override
+    public byte[] preTransform(String className, byte[] classBytes, int order) throws Exception {
+        DebugInfo.debug("pre transform: " + className + ", order: " + order);
+
+        return classBytes;
+    }
+
+    @Override
+    public byte[] postTransform(String className, byte[] classBytes, int order) throws Exception {
+        DebugInfo.debug("post transform: " + className + ", order: " + order);
+
+        return classBytes;
+    }
+
+    @Override
+    public void after(String className, byte[] classBytes) throws Exception {
+        DebugInfo.debug("pre transform: " + className);
+    }
+}
diff --git a/src/main/java/my/sample/plugin/MyPluginEntry.java b/src/main/java/my/sample/plugin/MyPluginEntry.java
index 6e8529c..918e083 100644
--- a/src/main/java/my/sample/plugin/MyPluginEntry.java
+++ b/src/main/java/my/sample/plugin/MyPluginEntry.java
@@ -11,6 +11,7 @@ public class MyPluginEntry implements PluginEntry {
 
     public MyPluginEntry() {
         transformers.add(new TestTransformer());
+        transformers.add(new GlobalTransformer());
     }
 
     @Override