#229 AntEnhanceTask to honor packages specified

ebean-agent/src/main/java/io/ebean/enhance/ant/AntEnhanceTask.java

@@ -4,8 +4,6 @@
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Task;
 
-import java.io.File;
-
 /**
  * An ANT task that can enhance entity beans etc for use by Ebean.
  * <p>
@@ -25,18 +23,16 @@
  * </ul>
  * </p>
  *
- * <pre class="code">
- *
- * 	 &lt;taskdef name=&quot;ebeanEnhance&quot; classname=&quot;AntEnhanceTask&quot; classpath=&quot;bin&quot; /&gt;
+ * <pre class="code">{@code
  *
- *   &lt;target name=&quot;enhance&quot; depends=&quot;compile&quot;&gt;
- *       &lt;ebeanEnhance
- *            classSource=&quot;${bin.dir}&quot;
- *            packages=&quot;com.avaje.ebean.meta.**, com.acme.myapp.entity.**&quot;
- *            transformArgs=&quot;debug=1&quot; /&gt;
- *   &lt;/target&gt;
- *
- * </pre>
+ * 	 <taskdef name="ebeanEnhance" classname="AntEnhanceTask" classpath="bin" />
+ *   <target name="enhance" depends="compile">
+ *       <ebeanEnhance
+ *            classSource="${bin.dir}"
+ *            packages="com.avaje.ebean.meta.**, com.acme.myapp.entity.**"
+ *            transformArgs="debug=1" />
+ *   </target>
+ * }</pre>
  */
 public class AntEnhanceTask extends Task {
 
@@ -47,24 +43,26 @@ public class AntEnhanceTask extends Task {
 
   @Override
   public void execute() throws BuildException {
-
-//    StringBuilder extraClassPath = new StringBuilder();
-//    extraClassPath.append(classSource);
-//    if (classpath != null)
-//    {
-//      if (!extraClassPath.toString().endsWith(";"))
-//      {
-//        extraClassPath.append(";");
-//      }
-//      extraClassPath.append(classpath);
-//    }
-    Transformer t = new Transformer(null, transformArgs);//extraClassPath.toString(),
+    String agentArgs = combine(packages, transformArgs);
+    Transformer t = new Transformer(null, agentArgs);
 
     ClassLoader cl = AntEnhanceTask.class.getClassLoader();
     OfflineFileTransform ft = new OfflineFileTransform(t, cl, classSource);
     ft.process(packages);
   }
 
+  /**
+   * Combine the packages into the transformArgs to filter enhanced classes via PackageFilter.
+   */
+  static String combine(String packages, String transformArgs) {
+    StringBuilder args = new StringBuilder();
+    args.append("packages=").append(packages.replace("**", ""));
+    if (transformArgs != null && !transformArgs.isEmpty()) {
+      args.append(',').append(transformArgs);
+    }
+    return args.toString();
+  }
+
   /**
    * the classpath used to search for e.g. inerited classes
    */

ebean-agent/src/main/java/io/ebean/enhance/common/PackageFilter.java

@@ -10,10 +10,11 @@ final class PackageFilter {
   PackageFilter(String packages) {
     List<String> prefixes = new ArrayList<>();
     for (String pkg : packages.split(",")) {
-      String replace = pkg.replace('.', '/').trim() + '/';
-      if (!replace.isEmpty()) {
-        prefixes.add(replace);
+      String replace = pkg.replace('.', '/').trim();
+      if (!replace.endsWith("/")) {
+        replace += '/';
       }
+      prefixes.add(replace);
     }
     packagePrefixes = prefixes.toArray(new String[]{});
   }

ebean-agent/src/test/java/io/ebean/enhance/ant/AntEnhanceTaskTest.java

@@ -0,0 +1,28 @@
+package io.ebean.enhance.ant;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AntEnhanceTaskTest {
+
+  @Test
+  void combine() {
+    String result = AntEnhanceTask.combine("com/one/**, com/two/**", "debug=1");
+    assertThat(result).isEqualTo("packages=com/one/, com/two/,debug=1");
+  }
+
+  @Test
+  void combine_when_NoTransformArgs() {
+    String result = AntEnhanceTask.combine("com/one/**", "");
+    assertThat(result).isEqualTo("packages=com/one/");
+  }
+
+  @Test
+  void combine_when_NullTransformArgs() {
+    String result = AntEnhanceTask.combine("com/one/**", null);
+    assertThat(result).isEqualTo("packages=com/one/");
+  }
+
+}

ebean-agent/src/test/java/io/ebean/enhance/common/ArgParserTest.java

@@ -0,0 +1,18 @@
+package io.ebean.enhance.common;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+class ArgParserTest {
+
+  @Test
+  void parse() {
+    Map<String, String> map = ArgParser.parse("packages=com/google/foo");
+    assertThat(map).containsKey("packages");
+    assertThat(map.get("packages")).isEqualTo("com/google/foo");
+  }
+}

ebean-agent/src/test/java/io/ebean/enhance/common/PackageFilterTest.java

@@ -21,4 +21,18 @@ void ignore() {
     assertTrue(filter.ignore("org/baz/Some"));
     assertTrue(filter.ignore("org/foo"));
   }
+
+  @Test
+  void endingSlash() {
+    PackageFilter filter = new PackageFilter("org/foo/,com/bar");
+
+    assertFalse(filter.ignore("org/foo/A"));
+    assertFalse(filter.ignore("org/foo/B"));
+    assertFalse(filter.ignore("org/foo/some/A"));
+    assertFalse(filter.ignore("com/bar/A"));
+    assertFalse(filter.ignore("com/bar/some/A"));
+
+    assertTrue(filter.ignore("org/baz/Some"));
+    assertTrue(filter.ignore("org/foo"));
+  }
 }