org.argeo.server.jackrabbit/src/org/argeo/jackrabbit/remote/IOHandlerWrapper.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.jackrabbit.remote;
  17
  18 import java.io.IOException;
  19
  20 import org.apache.jackrabbit.server.io.ExportContext;
  21 import org.apache.jackrabbit.server.io.IOHandler;
  22 import org.apache.jackrabbit.server.io.IOManager;
  23 import org.apache.jackrabbit.server.io.ImportContext;
  24 import org.apache.jackrabbit.webdav.DavResource;
  25 import org.argeo.ArgeoException;
  26
  27 /** Wraps an IOHandler so that it can be injected a posteriori */
  28 public class IOHandlerWrapper implements IOHandler {
  29         private IOManager ioManager = null;
  30         private IOHandler ioHandler = null;
  31
  32         public void setIOHandler(IOHandler ioHandler) {
  33                 if ((this.ioHandler != null) && (ioHandler != null))
  34                         throw new ArgeoException(
  35                                         "There is already an IO Handler registered");
  36                 this.ioHandler = ioHandler;
  37                 if (ioManager != null && this.ioHandler != null)
  38                         ioHandler.setIOManager(ioManager);
  39         }
  40
  41         public IOHandler getIOHandler() {
  42                 return ioHandler;
  43         }
  44
  45         public IOManager getIOManager() {
  46                 return ioManager;
  47         }
  48
  49         public void setIOManager(IOManager ioManager) {
  50                 this.ioManager = ioManager;
  51                 if (ioHandler != null)
  52                         ioHandler.setIOManager(ioManager);
  53         }
  54
  55         public String getName() {
  56                 if (ioHandler != null)
  57                         return ioHandler.getName();
  58                 else
  59                         return "Empty IOHandler Wrapper";
  60         }
  61
  62         public boolean canImport(ImportContext context, boolean isCollection) {
  63                 if (ioHandler != null)
  64                         return ioHandler.canImport(context, isCollection);
  65                 return false;
  66         }
  67
  68         public boolean canImport(ImportContext context, DavResource resource) {
  69                 if (ioHandler != null)
  70                         return ioHandler.canImport(context, resource);
  71                 return false;
  72         }
  73
  74         public boolean importContent(ImportContext context, boolean isCollection)
  75                         throws IOException {
  76                 if (ioHandler != null)
  77                         ioHandler.importContent(context, isCollection);
  78                 return false;
  79         }
  80
  81         public boolean importContent(ImportContext context, DavResource resource)
  82                         throws IOException {
  83                 if (ioHandler != null)
  84                         ioHandler.importContent(context, resource);
  85                 return false;
  86         }
  87
  88         public boolean canExport(ExportContext context, boolean isCollection) {
  89                 if (ioHandler != null)
  90                         ioHandler.canExport(context, isCollection);
  91                 return false;
  92         }
  93
  94         public boolean canExport(ExportContext context, DavResource resource) {
  95                 if (ioHandler != null)
  96                         ioHandler.canExport(context, resource);
  97                 return false;
  98         }
  99
 100         public boolean exportContent(ExportContext context, boolean isCollection)
 101                         throws IOException {
 102                 if (ioHandler != null)
 103                         ioHandler.exportContent(context, isCollection);
 104                 return false;
 105         }
 106
 107         public boolean exportContent(ExportContext context, DavResource resource)
 108                         throws IOException {
 109                 if (ioHandler != null)
 110                         ioHandler.exportContent(context, resource);
 111                 return false;
 112         }
 113
 114 }