+++ /dev/null
-/*--------------------------------------------------------------------------\r
- * Copyright 2009 Taro L. Saito\r
- *\r
- * Licensed under the Apache License, Version 2.0 (the "License");\r
- * you may not use this file except in compliance with the License.\r
- * You may obtain a copy of the License at\r
- *\r
- * http://www.apache.org/licenses/LICENSE-2.0\r
- *\r
- * Unless required by applicable law or agreed to in writing, software\r
- * distributed under the License is distributed on an "AS IS" BASIS,\r
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
- * See the License for the specific language governing permissions and\r
- * limitations under the License.\r
- *--------------------------------------------------------------------------*/\r
-//--------------------------------------\r
-// XerialJ\r
-//\r
-// VisitorTest.java\r
-// Since: Apr 15, 2009 2:09:32 PM\r
-//\r
-// $URL: http://www.xerial.org/svn/project/XerialJ/trunk/xerial-core/src/test/java/org/xerial/util/VisitorTest.java $\r
-// $Author: leo $\r
-//--------------------------------------\r
-package org.xerial.util;\r
-\r
-import java.util.ArrayList;\r
-import java.util.List;\r
-\r
-import org.junit.After;\r
-import org.junit.Before;\r
-import org.junit.Test;\r
-import org.xerial.util.log.Logger;\r
-\r
-public class VisitorTest\r
-{\r
- private static Logger _logger = Logger.getLogger(VisitorTest.class);\r
-\r
- @Before\r
- public void setUp() throws Exception\r
- {}\r
-\r
- @After\r
- public void tearDown() throws Exception\r
- {}\r
-\r
- public static interface FileObject extends AcceptVisitor<MyVisitor, FileObject>\r
- {\r
-\r
- }\r
-\r
- public static class File implements FileObject\r
- {\r
- String name;\r
-\r
- public File(String name)\r
- {\r
- this.name = name;\r
- }\r
-\r
- public void accept(MyVisitor visitor)\r
- {\r
- visitor.visit(this);\r
- }\r
-\r
- public String toString()\r
- {\r
- return name;\r
- }\r
-\r
- }\r
-\r
- public static class Directory implements FileObject\r
- {\r
- String name;\r
- List<FileObject> children = new ArrayList<FileObject>();\r
-\r
- public Directory(String name)\r
- {\r
- this.name = name;\r
- }\r
-\r
- public void accept(MyVisitor visitor)\r
- {\r
- visitor.visit(this);\r
- }\r
-\r
- public Directory add(Directory fileObj)\r
- {\r
- children.add(fileObj);\r
- return fileObj;\r
- }\r
-\r
- public File add(File fileObj)\r
- {\r
- children.add(fileObj);\r
- return fileObj;\r
- }\r
-\r
- public String toString()\r
- {\r
- return name;\r
- }\r
-\r
- }\r
-\r
- public static class MyVisitor implements Visitor<MyVisitor, FileObject>\r
- {\r
- public void visit(File file)\r
- {\r
- _logger.debug("visit file: " + file);\r
- }\r
-\r
- public void visit(Directory dir)\r
- {\r
- _logger.debug("visit dir: " + dir);\r
- for (FileObject each : dir.children)\r
- each.accept(this);\r
- _logger.debug("leave dir: " + dir);\r
- }\r
- }\r
-\r
- @Test\r
- public void testVisitor()\r
- {\r
- MyVisitor visitor = new MyVisitor();\r
-\r
- Directory d = new Directory("root");\r
- d.add(new Directory("child")).add(new File("sample"));\r
- d.add(new File("sample2"));\r
-\r
- d.accept(visitor);\r
-\r
- }\r
-\r
-}\r