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From w...@apache.org
Subject svn commit: r781568 - /struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java
Date Wed, 03 Jun 2009 21:24:54 GMT
Author: wesw
Date: Wed Jun  3 21:24:54 2009
New Revision: 781568

URL: http://svn.apache.org/viewvc?rev=781568&view=rev
Log:
first import, still need to create a struts-plugin.xml file that maps the beans. 

Added:
    struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java

Added: struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java
URL: http://svn.apache.org/viewvc/struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java?rev=781568&view=auto
==============================================================================
--- struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java
(added)
+++ struts/sandbox/trunk/src/main/java/org/apache/struts2/fileupload/DiskFileItemFactoryWrapper.java
Wed Jun  3 21:24:54 2009
@@ -0,0 +1,120 @@
+/*
+ * $Id$
+ *
+ * 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.struts2.fileupload;
+
+import org.apache.commons.fileupload.disk.DiskFileItemFactory;
+import org.apache.commons.fileupload.FileItemFactory;
+import com.opensymphony.xwork2.inject.Inject;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/**
+ * This class basically wraps the DiskFileItemFactory which is the
+ * default FileItemFactory for Jakarta FileUpload. The threshold
+ * setting specifies how large a file can get before it gets flushed
+ * from memory onto disk.
+ *
+ * TODO: Someone mentioned that google app engine won't let you
+ * write to the filesystem. It should be documented that you could
+ * potentially set the threshold to match your max upload size and then
+ * keep all files in memory. I don't know if it will work, since the
+ * MultiPartRequest interface insists that Files be used and I don't
+ * know what will happen, but it is worth trying.
+ *
+ * @author Wes W
+ */
+public class DiskFileItemFactoryWrapper implements FileItemFactoryWrapper {
+
+    protected DiskFileItemFactory factory;
+
+    /**
+     * 
+     * @param sizeThreshold
+     * @param repositoryPath
+     */
+    public DiskFileItemFactoryWrapper(
+            @Inject(FileUploadConstants.SIZE_THRESHOLD)
+                String sizeThreshold,
+            @Inject(FileUploadConstants.FILE_REPOSITORY_PATH)
+                String repositoryPath ) {
+
+        int threshold ;
+        try {
+            threshold = Integer.parseInt(sizeThreshold);
+        }
+        catch (NumberFormatException nfe) {
+            // how hard is it to specify a valid integer?
+        }
+        finally {
+            threshold = 256; // I guess this is a magic number
+        }
+
+        File repoPath = convertStringToFile(repositoryPath);
+
+        factory = new DiskFileItemFactory(threshold, repoPath);
+    }
+
+    /**
+     *
+     * @return
+     */
+    public FileItemFactory getFileItemFactory() {
+        return factory;
+    }
+
+    /**
+     *
+     * @param threshold
+     */
+    public void setSizeThreshold(int threshold) {
+        this.factory.setSizeThreshold(threshold);
+    }
+
+    /**
+     *
+     * @param repo
+     */
+    public void setRepositoryPath(String repo) {
+        this.factory.setRepository(convertStringToFile(repo));
+    }
+
+    private File convertStringToFile(String path) {
+        File repoPath = new File(path);
+        if (repoPath == null || !repoPath.isDirectory()) {
+            File tempFile = null;
+            try {
+                tempFile = File.createTempFile("","");
+            }
+            catch (IOException ioe) {
+                // I guess we're just sort of screwed, punt
+                repoPath = null;
+            }
+            if (tempFile != null ) {
+                repoPath = tempFile.getParentFile();
+                tempFile.delete();
+            }
+        }
+        return repoPath;
+    }
+
+}



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