Author: ggregory
Date: Sat Jan 21 22:23:53 2017
New Revision: 1779762

URL: http://svn.apache.org/viewvc?rev=1779762&view=rev
Log:
[VFS-628] Add a file inverter FileSelector: InvertIncludeFileSelector.

Added:
    
commons/proper/vfs/trunk/core/src/main/java/org/apache/commons/vfs2/InvertIncludeFileSelector.java
    
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/InvertIncludeFileSelectorTest.java
Modified:
    
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/PatternFileSelectorTest.java
    commons/proper/vfs/trunk/src/changes/changes.xml

Added: 
commons/proper/vfs/trunk/core/src/main/java/org/apache/commons/vfs2/InvertIncludeFileSelector.java
URL: 
http://svn.apache.org/viewvc/commons/proper/vfs/trunk/core/src/main/java/org/apache/commons/vfs2/InvertIncludeFileSelector.java?rev=1779762&view=auto
==============================================================================
--- 
commons/proper/vfs/trunk/core/src/main/java/org/apache/commons/vfs2/InvertIncludeFileSelector.java
 (added)
+++ 
commons/proper/vfs/trunk/core/src/main/java/org/apache/commons/vfs2/InvertIncludeFileSelector.java
 Sat Jan 21 22:23:53 2017
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.vfs2;
+
+import java.util.Objects;
+
+/**
+ * Inverts file inclusion of a delegate FileSelector, folder traversal is 
delegated.
+ * 
+ * @since 2.2
+ */
+public class InvertIncludeFileSelector implements FileSelector {
+
+    public InvertIncludeFileSelector(final FileSelector delegateFileSelector) {
+        this.delegateFileSelector = 
Objects.requireNonNull(delegateFileSelector, "delegateFileSelector");
+    }
+
+    private final FileSelector delegateFileSelector;
+
+    /**
+     * Inverts the result of calling {@link #includeFile(FileSelectInfo)} on 
the delegate.
+     */
+    @Override
+    public boolean includeFile(final FileSelectInfo fileInfo) throws Exception 
{
+        return !delegateFileSelector.includeFile(fileInfo);
+    }
+
+    /**
+     * Calls {@link #traverseDescendents(FileSelectInfo)} on the delegate.
+     */
+    @Override
+    public boolean traverseDescendents(final FileSelectInfo fileInfo) throws 
Exception {
+        return delegateFileSelector.traverseDescendents(fileInfo);
+    }
+
+}

Added: 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/InvertIncludeFileSelectorTest.java
URL: 
http://svn.apache.org/viewvc/commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/InvertIncludeFileSelectorTest.java?rev=1779762&view=auto
==============================================================================
--- 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/InvertIncludeFileSelectorTest.java
 (added)
+++ 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/InvertIncludeFileSelectorTest.java
 Sat Jan 21 22:23:53 2017
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.vfs2;
+
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class InvertIncludeFileSelectorTest {
+
+    @BeforeClass
+    public static void setUpClass() throws Exception {
+        PatternFileSelectorTest.setUpClass();
+    }
+
+    @AfterClass
+    public static void tearDownClass() throws Exception {
+        PatternFileSelectorTest.tearDownClass();
+    }
+
+    @Test
+    public void testInvertMatchAll() throws Exception {
+        final FileObject[] list = PatternFileSelectorTest.getBaseFolder()
+                .findFiles(new InvertIncludeFileSelector(new 
PatternFileSelector(".*")));
+        Assert.assertEquals(0, list.length);
+    }
+
+    @Test
+    public void testInvertMatchSome() throws Exception {
+        final FileObject[] list = PatternFileSelectorTest.getBaseFolder()
+                .findFiles(new InvertIncludeFileSelector(new 
PatternFileSelector(".*\\.html")));
+        Assert.assertEquals(7, list.length);
+    }
+
+}

Modified: 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/PatternFileSelectorTest.java
URL: 
http://svn.apache.org/viewvc/commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/PatternFileSelectorTest.java?rev=1779762&r1=1779761&r2=1779762&view=diff
==============================================================================
--- 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/PatternFileSelectorTest.java
 (original)
+++ 
commons/proper/vfs/trunk/core/src/test/java/org/apache/commons/vfs2/PatternFileSelectorTest.java
 Sat Jan 21 22:23:53 2017
@@ -139,4 +139,8 @@ public class PatternFileSelectorTest
         }
     }
 
+    static FileObject getBaseFolder() {
+        return BaseFolder;
+    }
+
 }

Modified: commons/proper/vfs/trunk/src/changes/changes.xml
URL: 
http://svn.apache.org/viewvc/commons/proper/vfs/trunk/src/changes/changes.xml?rev=1779762&r1=1779761&r2=1779762&view=diff
==============================================================================
--- commons/proper/vfs/trunk/src/changes/changes.xml (original)
+++ commons/proper/vfs/trunk/src/changes/changes.xml Sat Jan 21 22:23:53 2017
@@ -50,6 +50,9 @@ The <action> type attribute can be add,u
 <!--        [Local] Need an easy way to convert from a FileObject to a File. 
-->
 <!--       </action> -->
 <!-- START Might need to be moved to the next version -->
+     <action issue="VFS-628" dev="ggregory" type="add">
+        Add a file inverter FileSelector: InvertIncludeFileSelector.
+     </action>
      <action issue="VFS-612" dev="ggregory" type="update">
         Update the platform requirement from Java 6 to Java 7.
      </action>


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