src/de/todesbaum/util/freenet/fcp2/ClientPutComplexDir.java

   1 /*
   2  * todesbaum-lib -
   3  * Copyright (C) 2006 David Roden
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 package de.todesbaum.util.freenet.fcp2;
  21
  22 import java.io.File;
  23 import java.io.FileInputStream;
  24 import java.io.FileNotFoundException;
  25 import java.io.FileOutputStream;
  26 import java.io.IOException;
  27 import java.io.InputStream;
  28 import java.io.Writer;
  29 import java.util.ArrayList;
  30 import java.util.List;
  31
  32 import de.todesbaum.util.io.Closer;
  33
  34 /**
  35  * Implementation of the <code>ClientPutComplexDir</code> command. This
  36  * command can be used to insert directories that do not exist on disk.
  37  *
  38  * @author David Roden &lt;droden@gmail.com&gt;
  39  * @version $Id$
  40  */
  41 public class ClientPutComplexDir extends ClientPutDir {
  42
  43         /** The file entries of this directory. */
  44         private List<FileEntry> fileEntries = new ArrayList<FileEntry>();
  45
  46         /** Whether this request has payload. */
  47         private boolean hasPayload = false;
  48
  49         /** The input streams for the payload. */
  50         private File payloadFile;
  51
  52         /** The total number of bytes of the payload. */
  53         private long payloadLength = 0;
  54
  55         /**
  56          * Creates a new <code>ClientPutComplexDir</code> command with the specified identifier and URI.
  57          * @param identifier The identifier of the command
  58          * @param uri The URI of the command
  59          */
  60         public ClientPutComplexDir(String identifier, String uri) {
  61                 super("ClientPutComplexDir", identifier, uri);
  62         }
  63
  64         /**
  65          * Adds a file to the directory inserted by this request.
  66          * @param fileEntry The file entry to add to the directory
  67          */
  68         public void addFileEntry(FileEntry fileEntry) {
  69                 if (fileEntry instanceof DirectFileEntry) {
  70                         if (payloadFile == null){
  71                                 try {
  72                                         payloadFile = File.createTempFile("payload", ".dat");
  73                                         payloadFile.deleteOnExit();
  74                                 } catch (IOException e) {
  75                                 }
  76                         }
  77                         if (payloadFile != null) {
  78                                 InputStream payloadInputStream = ((DirectFileEntry) fileEntry).getDataInputStream();
  79                                 FileOutputStream payloadOutputStream = null;
  80                                 try {
  81                                         payloadOutputStream = new FileOutputStream(payloadFile, true);
  82                                         byte[] buffer = new byte[65536];
  83                                         int read = 0;
  84                                         while ((read = payloadInputStream.read(buffer)) != -1) {
  85                                                 payloadOutputStream.write(buffer, 0, read);
  86                                         }
  87                                         payloadOutputStream.flush();
  88                                         fileEntries.add(fileEntry);
  89                                 } catch (IOException ioe1) {
  90                                         /* hmm, ignore? */
  91                                 } finally {
  92                                         Closer.close(payloadOutputStream);
  93                                         Closer.close(payloadInputStream);
  94                                 }
  95                         }
  96                 } else {
  97                         fileEntries.add(fileEntry);
  98                 }
  99         }
 100
 101         /**
 102          * {@inheritDoc}
 103          */
 104         @Override
 105         protected void write(Writer writer) throws IOException {
 106                 super.write(writer);
 107                 int fileIndex = 0;
 108                 for (FileEntry fileEntry: fileEntries) {
 109                         writer.write("Files." + fileIndex + ".Name=" + fileEntry.getFilename() + LINEFEED);
 110                         if (fileEntry.getContentType() != null) {
 111                                 writer.write("Files." + fileIndex + ".Metadata.ContentType=" + fileEntry.getContentType() + LINEFEED);
 112                         }
 113                         writer.write("Files." + fileIndex + ".UploadFrom=" + fileEntry.getName() + LINEFEED);
 114                         if (fileEntry instanceof DirectFileEntry) {
 115                                 hasPayload = true;
 116                                 writer.write("Files." + fileIndex + ".DataLength=" + ((DirectFileEntry) fileEntry).getDataLength() + LINEFEED);
 117                                 payloadLength += ((DirectFileEntry) fileEntry).getDataLength();
 118                         } else if (fileEntry instanceof DiskFileEntry) {
 119                                 writer.write("Files." + fileIndex + ".Filename=" + ((DiskFileEntry) fileEntry).getFilename() + LINEFEED);
 120                         } else if (fileEntry instanceof RedirectFileEntry) {
 121                                 writer.write("Files." + fileIndex + ".TargetURI=" + ((RedirectFileEntry) fileEntry).getTargetURI() + LINEFEED);
 122                         }
 123                         fileIndex++;
 124                 }
 125         }
 126
 127         /**
 128          * {@inheritDoc}
 129          */
 130         @Override
 131         protected boolean hasPayload() {
 132                 return hasPayload;
 133         }
 134
 135         /**
 136          * {@inheritDoc}
 137          */
 138         @Override
 139         protected long getPayloadLength() {
 140                 return payloadLength;
 141         }
 142
 143         /**
 144          * {@inheritDoc}
 145          */
 146         @Override
 147         protected InputStream getPayload() {
 148                 if (payloadFile != null) {
 149                         try {
 150                                 return new FileInputStream(payloadFile);
 151                         } catch (FileNotFoundException e) {
 152                                 /* shouldn't occur. */
 153                         }
 154                 }
 155                 return null;
 156         }
 157
 158 }