runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/vfs/VfsResourceFactory.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   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
  17 package org.argeo.slc.vfs;
  18
  19 import org.apache.commons.vfs.CacheStrategy;
  20 import org.apache.commons.vfs.FileSystemManager;
  21 import org.apache.commons.vfs.impl.StandardFileSystemManager;
  22 import org.springframework.beans.factory.FactoryBean;
  23 import org.springframework.beans.factory.InitializingBean;
  24 import org.springframework.core.io.Resource;
  25
  26 public class VfsResourceFactory implements FactoryBean, InitializingBean {
  27         private String url;
  28         private FileSystemManager fileSystemManager;
  29
  30         public Object getObject() throws Exception {
  31                 return new VfsResource(fileSystemManager.resolveFile(url));
  32         }
  33
  34         public Class<?> getObjectType() {
  35                 return Resource.class;
  36         }
  37
  38         public boolean isSingleton() {
  39                 return false;
  40         }
  41
  42         public void afterPropertiesSet() throws Exception {
  43                 if (fileSystemManager == null) {
  44                         fileSystemManager = new StandardFileSystemManager();
  45                         ((StandardFileSystemManager) fileSystemManager)
  46                                         .setCacheStrategy(CacheStrategy.ON_RESOLVE);
  47                         ((StandardFileSystemManager) fileSystemManager).init();
  48                 }
  49
  50         }
  51
  52 }