org.argeo.slc.support/src/org/argeo/slc/vfs/VfsResourceSet.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 java.util.HashMap;
  19 import java.util.Map;
  20
  21 import org.apache.commons.vfs2.FileObject;
  22 import org.apache.commons.vfs2.FileSystemException;
  23 import org.apache.commons.vfs2.FileSystemManager;
  24 import org.apache.commons.vfs2.VFS;
  25 import org.argeo.slc.SlcException;
  26 import org.argeo.slc.core.deploy.ResourceSet;
  27 import org.springframework.core.io.Resource;
  28
  29 public class VfsResourceSet implements ResourceSet {
  30         private String base;
  31
  32         public Map<String, Resource> listResources() {
  33                 try {
  34                         FileSystemManager fileSystemManager = VFS.getManager();
  35                         FileObject fileObject = fileSystemManager.resolveFile(base);
  36                         Map<String, Resource> map = new HashMap<String, Resource>();
  37                         addToMap(map, "", fileObject);
  38
  39                         // TODO: add filters
  40                         return map;
  41                 } catch (FileSystemException e) {
  42                         throw new SlcException("Cannot list VFS resources from " + base, e);
  43                 }
  44         }
  45
  46         /** recursive */
  47         protected void addToMap(Map<String, Resource> map, String parentPath,
  48                         FileObject fileObject) {
  49                 try {
  50                         String newParentPath = parentPath
  51                                         + fileObject.getName().getBaseName() + '/';
  52                         if (fileObject.getType().hasChildren()) {
  53                                 for (FileObject child : fileObject.getChildren()) {
  54                                         addToMap(map, newParentPath, child);
  55                                 }
  56                         } else {
  57                                 map.put(parentPath + fileObject.getName().getBaseName(),
  58                                                 new VfsResource(fileObject));
  59                         }
  60                 } catch (FileSystemException e) {
  61                         throw new SlcException("Cannot add children from " + parentPath, e);
  62                 }
  63         }
  64
  65         public void setBase(String base) {
  66                 this.base = base;
  67         }
  68
  69 }