runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/vfs/VfsResourceSet.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 java.util.HashMap;
  20 import java.util.Map;
  21
  22 import org.apache.commons.vfs.FileObject;
  23 import org.apache.commons.vfs.FileSystemException;
  24 import org.apache.commons.vfs.FileSystemManager;
  25 import org.apache.commons.vfs.VFS;
  26 import org.argeo.slc.SlcException;
  27 import org.argeo.slc.core.deploy.ResourceSet;
  28 import org.springframework.core.io.Resource;
  29
  30 public class VfsResourceSet implements ResourceSet {
  31         private String base;
  32
  33         public Map<String, Resource> listResources() {
  34                 try {
  35                         FileSystemManager fileSystemManager = VFS.getManager();
  36                         FileObject fileObject = fileSystemManager.resolveFile(base);
  37                         Map<String, Resource> map = new HashMap<String, Resource>();
  38                         addToMap(map, "", fileObject);
  39
  40                         // TODO: add filters
  41                         return map;
  42                 } catch (FileSystemException e) {
  43                         throw new SlcException("Cannot list VFS resources from " + base, e);
  44                 }
  45         }
  46
  47         /** recursive */
  48         protected void addToMap(Map<String, Resource> map, String parentPath,
  49                         FileObject fileObject) {
  50                 try {
  51                         String newParentPath = parentPath
  52                                         + fileObject.getName().getBaseName() + '/';
  53                         if (fileObject.getType().hasChildren()) {
  54                                 for (FileObject child : fileObject.getChildren()) {
  55                                         addToMap(map, newParentPath, child);
  56                                 }
  57                         } else {
  58                                 map.put(parentPath + fileObject.getName().getBaseName(),
  59                                                 new VfsResource(fileObject));
  60                         }
  61                 } catch (FileSystemException e) {
  62                         throw new SlcException("Cannot add children from " + parentPath, e);
  63                 }
  64         }
  65
  66         public void setBase(String base) {
  67                 this.base = base;
  68         }
  69
  70 }