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

   1 /*
   2  * jSite - ClientPutComplexDir.java - Copyright © 2006–2012 David Roden
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 package de.todesbaum.util.freenet.fcp2;
  20
  21 import java.io.File;
  22 import java.io.FileInputStream;
  23 import java.io.FileNotFoundException;
  24 import java.io.FileOutputStream;
  25 import java.io.IOException;
  26 import java.io.InputStream;
  27 import java.io.Writer;
  28 import java.util.ArrayList;
  29 import java.util.List;
  30
  31 import net.pterodactylus.util.io.Closer;
  32
  33 /**
  34  * Implementation of the <code>ClientPutComplexDir</code> command. This command
  35  * can be used to insert directories that do not exist on disk.
  36  *
  37  * @author David Roden &lt;droden@gmail.com&gt;
  38  * @version $Id$
  39  */
  40 public class ClientPutComplexDir extends ClientPutDir<ClientPutComplexDir> {
  41
  42         /** The file entries of this directory. */
  43         private List<FileEntry> fileEntries = new ArrayList<FileEntry>();
  44
  45         /** Whether this request has payload. */
  46         private boolean hasPayload = false;
  47
  48         /** The input streams for the payload. */
  49         private File payloadFile;
  50
  51         /** The total number of bytes of the payload. */
  52         private long payloadLength = 0;
  53
  54         /** The temp directory to use. */
  55         private final String tempDirectory;
  56
  57         /**
  58          * Creates a new <code>ClientPutComplexDir</code> command with the specified
  59          * identifier and URI.
  60          *
  61          * @param identifier
  62          *            The identifier of the command
  63          * @param uri
  64          *            The URI of the command
  65          */
  66         public ClientPutComplexDir(String identifier, String uri) {
  67                 this(identifier, uri, null);
  68         }
  69
  70         /**
  71          * Creates a new <code>ClientPutComplexDir</code> command with the specified
  72          * identifier and URI.
  73          *
  74          * @param identifier
  75          *            The identifier of the command
  76          * @param uri
  77          *            The URI of the command
  78          * @param tempDirectory
  79          *            The temp directory to use, or {@code null} to use the default
  80          *            temp directory
  81          */
  82         public ClientPutComplexDir(String identifier, String uri, String tempDirectory) {
  83                 super("ClientPutComplexDir", identifier, uri);
  84                 this.tempDirectory = tempDirectory;
  85         }
  86
  87         /**
  88          * Adds a file to the directory inserted by this request.
  89          *
  90          * @param fileEntry
  91          *            The file entry to add to the directory
  92          * @throws IOException
  93          *             if an I/O error occurs when creating the payload stream
  94          */
  95         public void addFileEntry(FileEntry fileEntry) throws IOException {
  96                 if (fileEntry instanceof DirectFileEntry) {
  97                         if (payloadFile == null) {
  98                                 try {
  99                                         payloadFile = File.createTempFile("payload", ".dat", (tempDirectory != null) ? new File(tempDirectory) : null);
 100                                         payloadFile.deleteOnExit();
 101                                 } catch (IOException e) {
 102                                         /* ignore. */
 103                                 }
 104                         }
 105                         if (payloadFile != null) {
 106                                 InputStream payloadInputStream = ((DirectFileEntry) fileEntry).getDataInputStream();
 107                                 FileOutputStream payloadOutputStream = null;
 108                                 try {
 109                                         payloadOutputStream = new FileOutputStream(payloadFile, true);
 110                                         byte[] buffer = new byte[65536];
 111                                         int read = 0;
 112                                         while ((read = payloadInputStream.read(buffer)) != -1) {
 113                                                 payloadOutputStream.write(buffer, 0, read);
 114                                         }
 115                                         payloadOutputStream.flush();
 116                                         fileEntries.add(fileEntry);
 117                                 } catch (IOException ioe1) {
 118                                         payloadFile.delete();
 119                                         throw ioe1;
 120                                 } finally {
 121                                         Closer.close(payloadOutputStream);
 122                                         Closer.close(payloadInputStream);
 123                                 }
 124                         }
 125                 } else {
 126                         fileEntries.add(fileEntry);
 127                 }
 128         }
 129
 130         /**
 131          * {@inheritDoc}
 132          */
 133         @Override
 134         protected void write(Writer writer) throws IOException {
 135                 super.write(writer);
 136                 int fileIndex = 0;
 137                 for (FileEntry fileEntry : fileEntries) {
 138                         writer.write("Files." + fileIndex + ".Name=" + fileEntry.getFilename() + LINEFEED);
 139                         if (fileEntry.getContentType() != null) {
 140                                 writer.write("Files." + fileIndex + ".Metadata.ContentType=" + fileEntry.getContentType() + LINEFEED);
 141                         }
 142                         writer.write("Files." + fileIndex + ".UploadFrom=" + fileEntry.getName() + LINEFEED);
 143                         if (fileEntry instanceof DirectFileEntry) {
 144                                 hasPayload = true;
 145                                 writer.write("Files." + fileIndex + ".DataLength=" + ((DirectFileEntry) fileEntry).getDataLength() + LINEFEED);
 146                                 payloadLength += ((DirectFileEntry) fileEntry).getDataLength();
 147                         } else if (fileEntry instanceof DiskFileEntry) {
 148                                 writer.write("Files." + fileIndex + ".Filename=" + ((DiskFileEntry) fileEntry).getFilename() + LINEFEED);
 149                         } else if (fileEntry instanceof RedirectFileEntry) {
 150                                 writer.write("Files." + fileIndex + ".TargetURI=" + ((RedirectFileEntry) fileEntry).getTargetURI() + LINEFEED);
 151                         }
 152                         fileIndex++;
 153                 }
 154         }
 155
 156         /**
 157          * {@inheritDoc}
 158          */
 159         @Override
 160         protected boolean hasPayload() {
 161                 return hasPayload;
 162         }
 163
 164         /**
 165          * {@inheritDoc}
 166          */
 167         @Override
 168         protected long getPayloadLength() {
 169                 return payloadLength;
 170         }
 171
 172         /**
 173          * {@inheritDoc}
 174          */
 175         @Override
 176         protected InputStream getPayload() {
 177                 if (payloadFile != null) {
 178                         try {
 179                                 return new FileInputStream(payloadFile);
 180                         } catch (FileNotFoundException e) {
 181                                 /* shouldn't occur. */
 182                         }
 183                 }
 184                 return null;
 185         }
 186
 187 }