org.argeo.slc.support/src/org/argeo/slc/vfs/VfsResourceFactory.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.vfs;
  17
  18 import org.apache.commons.vfs2.CacheStrategy;
  19 import org.apache.commons.vfs2.FileSystemManager;
  20 import org.apache.commons.vfs2.impl.StandardFileSystemManager;
  21 import org.springframework.beans.factory.FactoryBean;
  22 import org.springframework.beans.factory.InitializingBean;
  23 import org.springframework.core.io.Resource;
  24
  25 public class VfsResourceFactory implements FactoryBean, InitializingBean {
  26         private String url;
  27         private FileSystemManager fileSystemManager;
  28
  29         public Object getObject() throws Exception {
  30                 return new VfsResource(fileSystemManager.resolveFile(url));
  31         }
  32
  33         public Class<?> getObjectType() {
  34                 return Resource.class;
  35         }
  36
  37         public boolean isSingleton() {
  38                 return false;
  39         }
  40
  41         public void afterPropertiesSet() throws Exception {
  42                 if (fileSystemManager == null) {
  43                         fileSystemManager = new StandardFileSystemManager();
  44                         ((StandardFileSystemManager) fileSystemManager)
  45                                         .setCacheStrategy(CacheStrategy.ON_RESOLVE);
  46                         ((StandardFileSystemManager) fileSystemManager).init();
  47                 }
  48
  49         }
  50
  51 }