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         /** The temp directory to use. */
  56         private final String tempDirectory;
  57
  58         /**
  59          * Creates a new <code>ClientPutComplexDir</code> command with the specified identifier and URI.
  60          * @param identifier The identifier of the command
  61          * @param uri The URI of the command
  62          */
  63         public ClientPutComplexDir(String identifier, String uri) {
  64                 this(identifier, uri, null);
  65         }
  66
  67         /**
  68          * Creates a new <code>ClientPutComplexDir</code> command with the specified
  69          * identifier and URI.
  70          *
  71          * @param identifier
  72          *            The identifier of the command
  73          * @param uri
  74          *            The URI of the command
  75          * @param tempDirectory
  76          *            The temp directory to use, or {@code null} to use the default
  77          *            temp directory
  78          */
  79         public ClientPutComplexDir(String identifier, String uri, String tempDirectory) {
  80                 super("ClientPutComplexDir", identifier, uri);
  81                 this.tempDirectory = tempDirectory;
  82         }
  83
  84         /**
  85          * Adds a file to the directory inserted by this request.
  86          * @param fileEntry The file entry to add to the directory
  87          */
  88         public void addFileEntry(FileEntry fileEntry) {
  89                 if (fileEntry instanceof DirectFileEntry) {
  90                         if (payloadFile == null){
  91                                 try {
  92                                         payloadFile = File.createTempFile("payload", ".dat", (tempDirectory != null) ? new File(tempDirectory) : null);
  93                                         payloadFile.deleteOnExit();
  94                                 } catch (IOException e) {
  95                                 }
  96                         }
  97                         if (payloadFile != null) {
  98                                 InputStream payloadInputStream = ((DirectFileEntry) fileEntry).getDataInputStream();
  99                                 FileOutputStream payloadOutputStream = null;
 100                                 try {
 101                                         payloadOutputStream = new FileOutputStream(payloadFile, true);
 102                                         byte[] buffer = new byte[65536];
 103                                         int read = 0;
 104                                         while ((read = payloadInputStream.read(buffer)) != -1) {
 105                                                 payloadOutputStream.write(buffer, 0, read);
 106                                         }
 107                                         payloadOutputStream.flush();
 108                                         fileEntries.add(fileEntry);
 109                                 } catch (IOException ioe1) {
 110                                         /* hmm, ignore? */
 111                                 } finally {
 112                                         Closer.close(payloadOutputStream);
 113                                         Closer.close(payloadInputStream);
 114                                 }
 115                         }
 116                 } else {
 117                         fileEntries.add(fileEntry);
 118                 }
 119         }
 120
 121         /**
 122          * {@inheritDoc}
 123          */
 124         @Override
 125         protected void write(Writer writer) throws IOException {
 126                 super.write(writer);
 127                 int fileIndex = 0;
 128                 for (FileEntry fileEntry: fileEntries) {
 129                         writer.write("Files." + fileIndex + ".Name=" + fileEntry.getFilename() + LINEFEED);
 130                         if (fileEntry.getContentType() != null) {
 131                                 writer.write("Files." + fileIndex + ".Metadata.ContentType=" + fileEntry.getContentType() + LINEFEED);
 132                         }
 133                         writer.write("Files." + fileIndex + ".UploadFrom=" + fileEntry.getName() + LINEFEED);
 134                         if (fileEntry instanceof DirectFileEntry) {
 135                                 hasPayload = true;
 136                                 writer.write("Files." + fileIndex + ".DataLength=" + ((DirectFileEntry) fileEntry).getDataLength() + LINEFEED);
 137                                 payloadLength += ((DirectFileEntry) fileEntry).getDataLength();
 138                         } else if (fileEntry instanceof DiskFileEntry) {
 139                                 writer.write("Files." + fileIndex + ".Filename=" + ((DiskFileEntry) fileEntry).getFilename() + LINEFEED);
 140                         } else if (fileEntry instanceof RedirectFileEntry) {
 141                                 writer.write("Files." + fileIndex + ".TargetURI=" + ((RedirectFileEntry) fileEntry).getTargetURI() + LINEFEED);
 142                         }
 143                         fileIndex++;
 144                 }
 145         }
 146
 147         /**
 148          * {@inheritDoc}
 149          */
 150         @Override
 151         protected boolean hasPayload() {
 152                 return hasPayload;
 153         }
 154
 155         /**
 156          * {@inheritDoc}
 157          */
 158         @Override
 159         protected long getPayloadLength() {
 160                 return payloadLength;
 161         }
 162
 163         /**
 164          * {@inheritDoc}
 165          */
 166         @Override
 167         protected InputStream getPayload() {
 168                 if (payloadFile != null) {
 169                         try {
 170                                 return new FileInputStream(payloadFile);
 171                         } catch (FileNotFoundException e) {
 172                                 /* shouldn't occur. */
 173                         }
 174                 }
 175                 return null;
 176         }
 177
 178 }