1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.io.IOException;
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7 | import java.io.OutputStream;
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8 |
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9 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
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10 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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11 |
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12 | /**
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13 | * An {@link OutputStream} which reports progress to the {@link ProgressMonitor}.
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14 | *
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15 | * @since 9185
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16 | */
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17 | public class ProgressOutputStream extends OutputStream {
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18 |
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19 | private final StreamProgressUpdater updater;
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20 | private final OutputStream out;
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21 | private final boolean finishOnClose;
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22 |
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23 | /**
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24 | * Constructs a new {@code ProgressOutputStream}.
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25 | *
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26 | * @param out the stream to monitor
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27 | * @param size the total size which will be sent
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28 | * @param progressMonitor the monitor to report to
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29 | * @param finishOnClose whether to call {@link ProgressMonitor#finishTask} when this stream is closed
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30 | * @since 10302
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31 | */
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32 | public ProgressOutputStream(OutputStream out, long size, ProgressMonitor progressMonitor, boolean finishOnClose) {
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33 | this.updater = new StreamProgressUpdater(size,
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34 | progressMonitor != null ? progressMonitor : NullProgressMonitor.INSTANCE, tr("Uploading data ..."));
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35 | this.out = out;
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36 | this.finishOnClose = finishOnClose;
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37 | }
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38 |
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39 | @Override
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40 | public void write(byte[] b, int off, int len) throws IOException {
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41 | out.write(b, off, len);
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42 | updater.advanceTicker(len);
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43 | }
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44 |
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45 | @Override
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46 | public void write(int b) throws IOException {
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47 | out.write(b);
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48 | updater.advanceTicker(1);
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49 | }
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50 |
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51 | @Override
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52 | public void close() throws IOException {
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53 | try {
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54 | out.close();
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55 | } finally {
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56 | if (finishOnClose) {
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57 | updater.finishTask();
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58 | }
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59 | }
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60 | }
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61 | }
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