1 | package wjhk.jupload2.upload;
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2 |
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3 | import java.util.concurrent.ArrayBlockingQueue;
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4 | import java.util.concurrent.BlockingQueue;
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5 |
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6 | import wjhk.jupload2.exception.JUploadEOFException;
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7 | import wjhk.jupload2.exception.JUploadException;
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8 | import wjhk.jupload2.filedata.FileData;
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9 | import wjhk.jupload2.gui.JUploadPanel;
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10 | import wjhk.jupload2.gui.filepanel.FilePanel;
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11 | import wjhk.jupload2.policies.UploadPolicy;
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12 | import wjhk.jupload2.upload.helper.ProgressBarManager;
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13 |
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14 | /**
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15 | * This class is responsible for managing the upload. At the end of the upload,
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16 | * the {@link JUploadPanel#updateButtonState()} is called, to refresh the button
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17 | * state. Its job is to: <DIR> <LI>Prepare upload for the file (calls to
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18 | * {@link FileData#beforeUpload()} for each file in the file list. <LI>Create
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19 | * the thread to send a packet of files. <LI>Prepare the packets, that will be
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20 | * red by the upload thread. <LI>Manage the end of upload: trigger the call to
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21 | * {@link JUploadPanel#updateButtonState()} and the call to
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22 | * {@link UploadPolicy#afterUpload(Exception, String)}. <LI>Manage the 'stop'
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23 | * button reaction. </DIR> This class is created by {@link JUploadPanel}, when
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24 | * the user clicks on the upload button.
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25 | *
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26 | * @author etienne_sf
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27 | */
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28 | public class FileUploadManagerThreadImpl extends Thread implements
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29 | FileUploadManagerThread {
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30 |
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31 | /**
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32 | * Maximum number of files that can be stored in the filePreparationQueue.
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33 | * It's useless to have a too big value here, as, if too many files are
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34 | * there, it means that the file preparation process is much quicker than
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35 | * the file upload one.
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36 | */
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37 | final static int FILE_PREPARATION_QUEUE_SIZE = 50;
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38 |
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39 | // /////////////////////////////////////////////////////////////////////////////////////////
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40 | // //////////////////// Possible Status for file upload
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41 | // /////////////////////////////////////////////////////////////////////////////////////////
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42 |
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43 | /** The current file list. */
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44 | FilePanel filePanel = null;
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45 |
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46 | /**
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47 | * The file preparatoin thread prepares each file for upload, and manage
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48 | * possible errors that can occurs at preparation time.
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49 | */
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50 | FilePreparationThread filePreparationThread = null;
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51 |
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52 | /**
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53 | * This thread receives each prepared files in a queue, constructs the
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54 | * packets of files to be sent together, and posts them in another queue.
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55 | */
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56 | PacketConstructionThread packetConstructionThread = null;
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57 |
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58 | /**
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59 | * The upload thread, that will wait for the next file packet to be ready,
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60 | * then send it.
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61 | */
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62 | FileUploadThread fileUploadThread = null;
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63 |
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64 | /**
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65 | * This help controls the display of the progress bar and the status bar. It
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66 | * updates these bar, based on a timer.
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67 | */
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68 | ProgressBarManager progressBarManager;
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69 |
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70 | /**
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71 | * Number of files that have been successfully uploaded. already been sent.
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72 | * The control on the upload success may be done or not. It's used to
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73 | * properly display the progress bar.
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74 | */
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75 | int nbSuccessfullyUploadedFiles = 0;
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76 |
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77 | /**
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78 | * Indicates whether the upload is finished or not. Passed to true as soon
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79 | * as one of these conditions becomes true: <DIR> <LI>All files are uploaded
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80 | * (in the {@link #currentRequestIsFinished(UploadFilePacket)} method) <LI>
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81 | * An exception occurs (in the {@link #setUploadException(JUploadException)}
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82 | * method) <LI>The user stops the upload (in the {@link #stopUpload()}
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83 | * method) </DIR>
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84 | */
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85 | boolean uploadFinished = false;
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86 |
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87 | /**
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88 | * If set to 'true', the thread will stop the current upload.
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89 | *
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90 | * @see UploadFileData#uploadFile(java.io.OutputStream, long)
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91 | */
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92 | boolean stop = false;
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93 |
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94 | /** Thread Exception, if any occurred during upload. */
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95 | JUploadException uploadException = null;
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96 |
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97 | /** A shortcut to the upload panel */
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98 | JUploadPanel uploadPanel = null;
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99 |
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100 | /** The current upload policy. */
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101 | UploadPolicy uploadPolicy = null;
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102 |
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103 | // ////////////////////////////////////////////////////////////////////////////
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104 | // To follow the upload speed.
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105 | // ////////////////////////////////////////////////////////////////////////////
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106 |
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107 | /**
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108 | * Standard constructor of the class.
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109 | *
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110 | * @param uploadPolicy
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111 | * @throws JUploadException
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112 | */
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113 | public FileUploadManagerThreadImpl(UploadPolicy uploadPolicy)
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114 | throws JUploadException {
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115 | super("FileUploadManagerThreadImpl thread");
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116 | constructor(uploadPolicy, null);
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117 | }
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118 |
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119 | /**
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120 | * Internal constructor. It is used by the JUnit test, to create a
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121 | * FileUploadManagerThreadImpl instance, based on a non-active
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122 | * {@link FileUploadThread}.
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123 | *
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124 | * @param uploadPolicy The current uploadPolicy
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125 | * @param fileUploadThreadParam The instance of {@link FileUploadThread}
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126 | * that should be used. Allows execution of unit tests, based on
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127 | * a specific FileUploadThread, that does ... nothing.
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128 | * @throws JUploadException
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129 | */
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130 | FileUploadManagerThreadImpl(UploadPolicy uploadPolicy,
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131 | FileUploadThread fileUploadThreadParam) throws JUploadException {
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132 | super("FileUploadManagerThreadImpl test thread");
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133 | constructor(uploadPolicy, fileUploadThreadParam);
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134 | }
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135 |
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136 | /**
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137 | * Called by the class constructors, to initialize the current instance.
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138 | *
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139 | * @param uploadPolicy
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140 | * @param fileUploadThreadParam
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141 | * @throws JUploadException
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142 | */
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143 | private synchronized void constructor(UploadPolicy uploadPolicy,
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144 | FileUploadThread fileUploadThreadParam) throws JUploadException {
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145 |
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146 | // General shortcuts on the current applet.
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147 | this.uploadPolicy = uploadPolicy;
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148 | this.uploadPanel = uploadPolicy.getContext().getUploadPanel();
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149 | this.filePanel = this.uploadPanel.getFilePanel();
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150 |
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151 | BlockingQueue<UploadFileData> preparedFileQueue = new ArrayBlockingQueue<UploadFileData>(
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152 | this.filePanel.getFilesLength());
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153 |
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154 | // If the FileUploadThread was already created, we must take the same
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155 | // packetQueue.
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156 | BlockingQueue<UploadFilePacket> packetQueue;
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157 | if (fileUploadThreadParam == null) {
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158 | packetQueue = new ArrayBlockingQueue<UploadFilePacket>(
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159 | this.filePanel.getFilesLength());
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160 | } else {
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161 | packetQueue = fileUploadThreadParam.getPacketQueue();
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162 | }
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163 | // Let's create (but not start) start the file preparation thread.
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164 | this.filePreparationThread = new FilePreparationThread(
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165 | preparedFileQueue, this, this.uploadPolicy);
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166 | // The packet tread groups files together, depending on the current
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167 | // upload policy.
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168 | this.packetConstructionThread = new PacketConstructionThread(
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169 | preparedFileQueue, packetQueue, this, this.uploadPolicy);
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170 | // Let's start the upload thread. It will wait until the first
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171 | // packet is ready.
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172 | createUploadThread(packetQueue, fileUploadThreadParam);
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173 | // We're now ready to start the bar update job.
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174 | this.progressBarManager = new ProgressBarManager(this.uploadPolicy,
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175 | this.filePreparationThread);
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176 | }
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177 |
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178 | /**
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179 | * @see wjhk.jupload2.upload.FileUploadManagerThread#run()
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180 | */
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181 | @Override
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182 | final public void run() {
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183 | try {
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184 | this.uploadPolicy.displayDebug(
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185 | "Start of the FileUploadManagerThreadImpl", 5);
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186 |
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187 | // Let's start the working threads.
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188 | this.filePreparationThread.start();
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189 | this.packetConstructionThread.start();
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190 | this.fileUploadThread.start();
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191 |
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192 | // Let's let the current upload policy have any preparation work
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193 | this.uploadPolicy.beforeUpload();
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194 |
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195 | // The upload is started. Let's change the button state.
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196 | this.uploadPanel.updateButtonState();
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197 |
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198 | // Let's prepare the progress bar, to display the current upload
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199 | // stage.
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200 | progressBarManager.uploadIsStarted();
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201 |
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202 | // The thread upload may need some information about the current
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203 | // one, like ... knowing that upload is actually finished (no more
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204 | // file to send).
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205 | // So we wait for it to finish.
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206 | while (this.fileUploadThread.isAlive() && !isUploadFinished()) {
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207 | try {
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208 | this.uploadPolicy.displayDebug(
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209 | "Waiting for fileUploadThread to die", 10);
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210 | this.fileUploadThread.join();
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211 | } catch (InterruptedException e) {
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212 | // This should not occur, and should not be a problem. Let's
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213 | // trace a warning info.
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214 | this.uploadPolicy
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215 | .displayWarn("An InterruptedException occured in FileUploadManagerThreadImpl.run()");
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216 | }
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217 | }// while
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218 |
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219 | // If any error occurs, the prepared state of the file data may be
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220 | // true. We must free resources. So, to be sure, we do it in all
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221 | // cases.
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222 | FileData[] fileDataArray = this.uploadPanel.getFilePanel()
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223 | .getFiles();
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224 | for (int i = 0; i < fileDataArray.length; i += 1) {
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225 | if (fileDataArray[i].isPreparedForUpload()) {
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226 | fileDataArray[i].afterUpload();
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227 | }
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228 | }
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229 |
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230 | // Let's restore the button state.
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231 | this.uploadPanel.updateButtonState();
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232 | this.uploadPolicy.getContext().showStatus("");
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233 | this.uploadPolicy.getContext().getUploadPanel().getStatusLabel()
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234 | .setText("");
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235 |
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236 | // If no error occurs, we tell to the upload policy that a
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237 | // successful
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238 | // upload has been done.
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239 |
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240 | if (getUploadException() != null) {
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241 | this.uploadPolicy.sendDebugInformation("Error in Upload",
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242 | getUploadException());
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243 | } else if (isUploadStopped()) {
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244 | this.uploadPolicy
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245 | .displayInfo("Upload stopped by the user. "
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246 | + this.nbSuccessfullyUploadedFiles
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247 | + " file(s) uploaded in "
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248 | + (int) ((System.currentTimeMillis() - this.progressBarManager
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249 | .getGlobalStartTime()) / 1000)
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250 | + " seconds. Average upload speed: "
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251 | + ((this.progressBarManager.getUploadDuration() > 0) ? ((int) (this.progressBarManager
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252 | .getNbUploadedBytes() / this.progressBarManager
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253 | .getUploadDuration()))
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254 | : 0) + " (kbytes/s)");
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255 | } else {
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256 | this.uploadPolicy
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257 | .displayInfo("Upload finished normally. "
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258 | + this.nbSuccessfullyUploadedFiles
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259 | + " file(s) uploaded in "
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260 | + (int) ((System.currentTimeMillis() - this.progressBarManager
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261 | .getGlobalStartTime()) / 1000)
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262 | + " seconds. Average upload speed: "
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263 | + ((this.progressBarManager.getUploadDuration() > 0) ? ((int) (this.progressBarManager
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264 | .getNbUploadedBytes() / this.progressBarManager
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265 | .getUploadDuration()))
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266 | : 0) + " (kbytes/s)");
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267 | // FIXME uploadDuration displayed is 0!
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268 | try {
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269 | this.uploadPolicy.afterUpload(this.getUploadException(),
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270 | this.fileUploadThread.getResponseMsg());
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271 | } catch (JUploadException e1) {
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272 | this.uploadPolicy.displayErr(
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273 | "error in uploadPolicy.afterUpload (JUploadPanel)",
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274 | e1);
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275 | }
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276 | }
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277 |
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278 | // The job is finished. Let's stop the timer, and have a last
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279 | // refresh of the bars.
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280 | this.progressBarManager.uploadIsFinished();
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281 |
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282 | // We wait for 5 seconds, before clearing the progress bar.
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283 | try {
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284 | sleep(5000);
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285 | } catch (InterruptedException e) {
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286 | // Nothing to do
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287 | }
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288 | // The job is finished for long enough, let's clear the progression
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289 | // bars (and any associated ressource, like the time).
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290 | // We'll clear the progress bar, only if this thread is in control
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291 | // of the upload, that is: if this instance is the currently
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292 | // FileUploadManagerThread referenced in the JUpload panel.
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293 | if (this == this.uploadPanel.getFileUploadManagerThread()) {
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294 | this.progressBarManager.clearBarContent();
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295 | this.uploadPolicy.getContext().getUploadPanel()
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296 | .getStatusLabel().setText("");
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297 | }
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298 |
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299 | this.uploadPolicy.displayDebug(
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300 | "End of the FileUploadManagerThreadImpl", 5);
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301 | } catch (Exception e) {
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302 | // We need a JUploadException.
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303 | JUploadException jue = (e instanceof JUploadException) ? (JUploadException) e
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304 | : new JUploadException(e);
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305 | setUploadException(jue);
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306 |
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307 | // And go back into a 'normal' way.
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308 | stopUpload();
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309 | } finally {
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310 | // We restore the button state, just to be sure.
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311 | this.uploadPanel.updateButtonState();
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312 | }
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313 |
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314 | // And we die of our beautiful death ... until next upload.
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315 | }// run
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316 |
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317 | /**
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318 | * @see wjhk.jupload2.upload.FileUploadManagerThread#setUploadException(wjhk.jupload2.exception.JUploadException)
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319 | */
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320 | public synchronized void setUploadException(
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321 | JUploadException uploadExceptionParam) {
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322 | // If the user stops the upload, the socket on which the applet reads
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323 | // the server response got closed. So we ignore this error.
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324 | if (isUploadStopped()
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325 | && uploadExceptionParam instanceof JUploadEOFException) {
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326 | // Just ignore this error: the input stream from the server was
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327 | // closed, but it probably occurs because the applet itself closed
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328 | // the communicaiton.
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329 | } else {
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330 | // We don't override an existing exception
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331 | if (this.uploadException != null) {
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332 | this.uploadPolicy
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333 | .displayWarn("An exception has already been set in FileUploadManagerThreadImpl. The next one is just logged.");
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334 | } else {
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335 | this.uploadException = uploadExceptionParam;
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336 | }
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337 |
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338 | String exceptionMsg = (uploadExceptionParam.getCause() == null) ? uploadExceptionParam
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339 | .getMessage()
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340 | : uploadExceptionParam.getCause().getMessage();
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341 | String errMsg = this.uploadPolicy
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342 | .getLocalizedString("errDuringUpload")
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343 | + "\n\n" + exceptionMsg;
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344 | this.uploadPolicy.displayErr(errMsg, uploadException);
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345 | }
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346 | }
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347 |
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348 | /**
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349 | * @see wjhk.jupload2.upload.FileUploadManagerThread#getUploadException()
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350 | */
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351 | public JUploadException getUploadException() {
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352 | return this.uploadException;
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353 | }
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354 |
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355 | /**
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356 | * @see wjhk.jupload2.upload.FileUploadManagerThread#isUploadFinished()
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357 | */
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358 | public boolean isUploadFinished() {
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359 | // Indicate whether or not the upload is finished. Several conditions:
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360 | // all files are uploaded, there was an error and the user stops the
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361 | // upload here...
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362 | return this.uploadFinished || this.stop || this.uploadException != null;
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363 | }
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364 |
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365 | /**
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366 | * @see FileUploadManagerThread#isUploadStopped()
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367 | */
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368 | public boolean isUploadStopped() {
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369 | return this.stop;
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370 | }
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371 |
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372 | /**
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373 | * @see wjhk.jupload2.upload.FileUploadManagerThread#nbBytesUploaded(long,
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374 | * UploadFileData)
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375 | */
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376 | public synchronized void nbBytesUploaded(long nbBytes,
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377 | UploadFileData uploadFileData) throws JUploadException {
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378 | this.progressBarManager.nbBytesUploaded(nbBytes, uploadFileData);
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379 | }
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380 |
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381 | /**
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382 | * @see wjhk.jupload2.upload.FileUploadManagerThread#setUploadStatus(wjhk.jupload2.upload.UploadFilePacket,
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383 | * wjhk.jupload2.upload.UploadFileData, int)
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384 | */
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385 | public synchronized void setUploadStatus(UploadFilePacket uploadFilePacket,
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386 | UploadFileData uploadFileData, int uploadStatus)
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387 | throws JUploadException {
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388 | this.progressBarManager.setUploadStatus(uploadFilePacket,
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389 | uploadFileData, uploadStatus);
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390 | }
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391 |
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392 | /**
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393 | * @see wjhk.jupload2.upload.FileUploadManagerThread#stopUpload()
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394 | */
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395 | public synchronized void stopUpload() {
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396 | this.stop = true;
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397 |
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398 | // The upload is now finished ...
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399 | this.uploadFinished = true;
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400 |
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401 | // We notify the various threads.
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402 | if (this.filePreparationThread != null
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403 | && this.filePreparationThread.isAlive()) {
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404 | this.filePreparationThread.interrupt();
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405 | }
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406 | if (this.packetConstructionThread != null
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407 | && this.packetConstructionThread.isAlive()) {
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408 | this.packetConstructionThread.interrupt();
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409 | }
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410 | if (this.fileUploadThread != null && this.fileUploadThread.isAlive()) {
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411 | this.fileUploadThread.interrupt();
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412 | }
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413 |
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414 | // All 'sub-thread' is now interrupted. The upload thread can be stuck
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415 | // while waiting for the server response. We also interrupt the current
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416 | // thread.
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417 | this.interrupt();
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418 | }
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419 |
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420 | // //////////////////////////////////////////////////////////////////////////////////////////////
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421 | // /////////////////// SYNCHRONIZATION METHODS
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422 | // //////////////////////////////////////////////////////////////////////////////////////////////
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423 |
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424 | /**
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425 | * @see wjhk.jupload2.upload.FileUploadManagerThread#anotherFileHasBeenSent(wjhk.jupload2.upload.UploadFilePacket,
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426 | * wjhk.jupload2.upload.UploadFileData)
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427 | */
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428 | public synchronized void anotherFileHasBeenSent(
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429 | UploadFilePacket uploadFilePacket,
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430 | UploadFileData newlyUploadedFileData) throws JUploadException {
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431 | this.progressBarManager.anotherFileHasBeenSent(uploadFilePacket,
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432 | newlyUploadedFileData);
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433 | }
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434 |
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435 | /**
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436 | * @see wjhk.jupload2.upload.FileUploadManagerThread#currentRequestIsFinished(wjhk.jupload2.upload.UploadFilePacket)
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437 | */
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438 | public synchronized void currentRequestIsFinished(
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439 | UploadFilePacket uploadFilePacket) throws JUploadException {
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440 | // We are finished with this packet. Let's display it.
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441 | this.progressBarManager.setUploadStatus(uploadFilePacket,
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442 | uploadFilePacket.get(uploadFilePacket.size() - 1),
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443 | FileUploadManagerThread.UPLOAD_STATUS_UPLOADED);
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444 |
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445 | // We should now remove this file from the list of files to upload,
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446 | // to show the user that there is less and less work to do.
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447 | for (FileData fileData : uploadFilePacket) {
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448 | this.filePanel.remove(fileData);
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449 | this.nbSuccessfullyUploadedFiles += 1;
|
---|
450 | }
|
---|
451 |
|
---|
452 | // If all files have been sent, the upload is finished.
|
---|
453 | if (!this.uploadFinished) {
|
---|
454 | this.uploadFinished = (this.nbSuccessfullyUploadedFiles == this.filePreparationThread
|
---|
455 | .getNbFilesToSent());
|
---|
456 | }
|
---|
457 | }
|
---|
458 |
|
---|
459 | // //////////////////////////////////////////////////////////////////////////////////////////////
|
---|
460 | // /////////////////// PRIVATE METHODS
|
---|
461 | // //////////////////////////////////////////////////////////////////////////////////////////////
|
---|
462 |
|
---|
463 | /**
|
---|
464 | * Creates the upload thread, but does not start it. IThis thread will wait
|
---|
465 | * until the first packet is ready.
|
---|
466 | *
|
---|
467 | * @throws JUploadException
|
---|
468 | */
|
---|
469 | private synchronized void createUploadThread(
|
---|
470 | BlockingQueue<UploadFilePacket> packetQueue,
|
---|
471 | FileUploadThread fileUploadThreadParam) throws JUploadException {
|
---|
472 | if (fileUploadThreadParam != null) {
|
---|
473 | // The FileUploadThread has already been created.
|
---|
474 | // We set the FileUploadThreadManager.
|
---|
475 | this.fileUploadThread = fileUploadThreadParam;
|
---|
476 | fileUploadThreadParam.setFileUploadThreadManager(this);
|
---|
477 | } else {
|
---|
478 | try {
|
---|
479 | if (this.uploadPolicy.getPostURL().substring(0, 4).equals(
|
---|
480 | "ftp:")) {
|
---|
481 | this.fileUploadThread = new FileUploadThreadFTP(
|
---|
482 | this.uploadPolicy, packetQueue, this);
|
---|
483 | } else {
|
---|
484 | this.fileUploadThread = new FileUploadThreadHTTP(
|
---|
485 | this.uploadPolicy, packetQueue, this);
|
---|
486 | }
|
---|
487 | } catch (JUploadException e1) {
|
---|
488 | // Too bad !
|
---|
489 | this.uploadPolicy.displayErr(e1);
|
---|
490 | }
|
---|
491 | }
|
---|
492 | }
|
---|
493 | }
|
---|