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 command
  36  * 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
  60          * identifier and URI.
  61          *
  62          * @param identifier
  63          *            The identifier of the command
  64          * @param uri
  65          *            The URI of the command
  66          */
  67         public ClientPutComplexDir(String identifier, String uri) {
  68                 this(identifier, uri, null);
  69         }
  70
  71         /**
  72          * Creates a new <code>ClientPutComplexDir</code> command with the specified
  73          * identifier and URI.
  74          *
  75          * @param identifier
  76          *            The identifier of the command
  77          * @param uri
  78          *            The URI of the command
  79          * @param tempDirectory
  80          *            The temp directory to use, or {@code null} to use the default
  81          *            temp directory
  82          */
  83         public ClientPutComplexDir(String identifier, String uri, String tempDirectory) {
  84                 super("ClientPutComplexDir", identifier, uri);
  85                 this.tempDirectory = tempDirectory;
  86         }
  87
  88         /**
  89          * Adds a file to the directory inserted by this request.
  90          *
  91          * @param fileEntry
  92          *            The file entry to add to the directory
  93          */
  94         public void addFileEntry(FileEntry fileEntry) {
  95                 if (fileEntry instanceof DirectFileEntry) {
  96                         if (payloadFile == null) {
  97                                 try {
  98                                         payloadFile = File.createTempFile("payload", ".dat", (tempDirectory != null) ? new File(tempDirectory) : null);
  99                                         payloadFile.deleteOnExit();
 100                                 } catch (IOException e) {
 101                                         /* ignore. */
 102                                 }
 103                         }
 104                         if (payloadFile != null) {
 105                                 InputStream payloadInputStream = ((DirectFileEntry) fileEntry).getDataInputStream();
 106                                 FileOutputStream payloadOutputStream = null;
 107                                 try {
 108                                         payloadOutputStream = new FileOutputStream(payloadFile, true);
 109                                         byte[] buffer = new byte[65536];
 110                                         int read = 0;
 111                                         while ((read = payloadInputStream.read(buffer)) != -1) {
 112                                                 payloadOutputStream.write(buffer, 0, read);
 113                                         }
 114                                         payloadOutputStream.flush();
 115                                         fileEntries.add(fileEntry);
 116                                 } catch (IOException ioe1) {
 117                                         /* hmm, ignore? */
 118                                 } finally {
 119                                         Closer.close(payloadOutputStream);
 120                                         Closer.close(payloadInputStream);
 121                                 }
 122                         }
 123                 } else {
 124                         fileEntries.add(fileEntry);
 125                 }
 126         }
 127
 128         /**
 129          * {@inheritDoc}
 130          */
 131         @Override
 132         protected void write(Writer writer) throws IOException {
 133                 super.write(writer);
 134                 int fileIndex = 0;
 135                 for (FileEntry fileEntry : fileEntries) {
 136                         writer.write("Files." + fileIndex + ".Name=" + fileEntry.getFilename() + LINEFEED);
 137                         if (fileEntry.getContentType() != null) {
 138                                 writer.write("Files." + fileIndex + ".Metadata.ContentType=" + fileEntry.getContentType() + LINEFEED);
 139                         }
 140                         writer.write("Files." + fileIndex + ".UploadFrom=" + fileEntry.getName() + LINEFEED);
 141                         if (fileEntry instanceof DirectFileEntry) {
 142                                 hasPayload = true;
 143                                 writer.write("Files." + fileIndex + ".DataLength=" + ((DirectFileEntry) fileEntry).getDataLength() + LINEFEED);
 144                                 payloadLength += ((DirectFileEntry) fileEntry).getDataLength();
 145                         } else if (fileEntry instanceof DiskFileEntry) {
 146                                 writer.write("Files." + fileIndex + ".Filename=" + ((DiskFileEntry) fileEntry).getFilename() + LINEFEED);
 147                         } else if (fileEntry instanceof RedirectFileEntry) {
 148                                 writer.write("Files." + fileIndex + ".TargetURI=" + ((RedirectFileEntry) fileEntry).getTargetURI() + LINEFEED);
 149                         }
 150                         fileIndex++;
 151                 }
 152         }
 153
 154         /**
 155          * {@inheritDoc}
 156          */
 157         @Override
 158         protected boolean hasPayload() {
 159                 return hasPayload;
 160         }
 161
 162         /**
 163          * {@inheritDoc}
 164          */
 165         @Override
 166         protected long getPayloadLength() {
 167                 return payloadLength;
 168         }
 169
 170         /**
 171          * {@inheritDoc}
 172          */
 173         @Override
 174         protected InputStream getPayload() {
 175                 if (payloadFile != null) {
 176                         try {
 177                                 return new FileInputStream(payloadFile);
 178                         } catch (FileNotFoundException e) {
 179                                 /* shouldn't occur. */
 180                         }
 181                 }
 182                 return null;
 183         }
 184
 185 }