svn commit: r737666 - /camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java

[da...@apache.org]

Author: davsclaus
Date: Mon Jan 26 10:27:15 2009
New Revision: 737666

URL: http://svn.apache.org/viewvc?rev=737666&view=rev
Log:
CAMEL-1241: AntPathMatcher for Camel VFS in camel-core

Added:
    camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java   (with props)

Added: camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java?rev=737666&view=auto
==============================================================================
--- camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java (added)
+++ camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java Mon Jan 26 10:27:15 2009
@@ -0,0 +1,106 @@
+/**
+ * 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.camel.component.file;
+
+import java.lang.reflect.Method;
+
+import org.apache.camel.util.ObjectHelper;
+import static org.apache.camel.util.CollectionHelper.collectionAsCommaDelimitedString;
+
+/**
+ * File filter using Spring's AntPathMatcher.
+ * <p/>
+ * Exclude take precedence over includes. If a file match both exclude and include it will be regarded as excluded.
+ */
+public class AntPathMatcherGenericFileFilter implements GenericFileFilter {
+    private static final String ANTPATHMATCHER_CLASSNAME = "org.apache.camel.component.file.AntPathMatcherGenericFileFilter";
+    private String[] excludes;
+    private String[] includes;
+
+    private Object filter;
+    private Method includesMethod;
+    private Method excludesMethod;
+    private Method acceptsMethod;
+
+    public boolean accept(GenericFile file) {
+        try {
+            synchronized (this) {
+                if (filter == null) {
+                    init();
+                }
+            }
+
+            // invoke setIncludes(String), must using string type as invoking with string[] does not work
+            ObjectHelper.invokeMethod(includesMethod, filter, collectionAsCommaDelimitedString(includes));
+
+            // invoke setExcludes(String), must using string type as invoking with string[] does not work
+            ObjectHelper.invokeMethod(excludesMethod, filter, collectionAsCommaDelimitedString(excludes));
+
+            // invoke acceptPathName(String)
+            String path = file.getRelativeFileName();
+            Boolean result = (Boolean) ObjectHelper.invokeMethod(acceptsMethod, filter, path);
+            return result;
+
+        } catch (NoSuchMethodException e) {
+            throw new TypeNotPresentException(ANTPATHMATCHER_CLASSNAME, e);
+        }
+    }
+
+    private void init() throws NoSuchMethodException {
+        // we must use reflection to invoke the AntPathMatcherFileFilter that reside in camel-spring.jar
+        // and we don't want camel-ftp to have runtime dependency on camel-spring.jar
+        Class clazz = ObjectHelper.loadClass(ANTPATHMATCHER_CLASSNAME);
+        ObjectHelper.notNull(clazz, ANTPATHMATCHER_CLASSNAME + " not found in classpath. camel-spring.jar is required in the classpath.");
+
+        filter = ObjectHelper.newInstance(clazz);
+
+        includesMethod = filter.getClass().getMethod("setIncludes", String.class);
+        excludesMethod = filter.getClass().getMethod("setExcludes", String.class);
+        acceptsMethod = filter.getClass().getMethod("acceptPathName", String.class);
+    }
+
+    public String[] getExcludes() {
+        return excludes;
+    }
+
+    public void setExcludes(String[] excludes) {
+        this.excludes = excludes;
+    }
+
+    public String[] getIncludes() {
+        return includes;
+    }
+
+    public void setIncludes(String[] includes) {
+        this.includes = includes;
+    }
+
+    /**
+     * Sets excludes using a single string where each element can be separated with comma
+     */
+    public void setExcludes(String excludes) {
+        setExcludes(excludes.split(","));
+    }
+
+    /**
+     * Sets includes using a single string where each element can be separated with comma
+     */
+    public void setIncludes(String includes) {
+        setIncludes(includes.split(","));
+    }
+
+}

Propchange: camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java
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Propchange: camel/trunk/camel-core/src/main/java/org/apache/camel/component/file/AntPathMatcherGenericFileFilter.java
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