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11 package org.apache.log4j.chainsaw;
12
13 import java.awt.Toolkit;
14 import java.awt.datatransfer.StringSelection;
15 import java.awt.event.ActionEvent;
16 import java.util.Iterator;
17 import java.util.List;
18
19 import javax.swing.AbstractAction;
20 import javax.swing.Action;
21
22 import org.apache.log4j.EnhancedPatternLayout;
23 import org.apache.log4j.Layout;
24 import org.apache.log4j.spi.LoggingEvent;
25
26 public class CopyEventsToClipboardAction extends AbstractAction {
27
28 private static final long serialVersionUID = 1L;
29 private static final int EVENTSIZE_FUDGE_FACTOR = 128;
30 private final LogUI logUi;
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35
36 private final Layout layout = new EnhancedPatternLayout(
37 "[%d{ISO8601} %-5p][%20.20c][%t] %m%n");
38
39 public CopyEventsToClipboardAction(LogUI parent) {
40 super("Copy events to clipboard");
41 this.logUi = parent;
42 layout.activateOptions();
43
44 putValue(Action.SHORT_DESCRIPTION,
45 "Copies to the clipboard currently visible events to a human-readable, log-like format");
46
47 }
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49
50 public void actionPerformed(ActionEvent e) {
51 List filteredEvents = logUi.getCurrentLogPanel().getFilteredEvents();
52 StringBuffer writer = new StringBuffer(filteredEvents.size() * EVENTSIZE_FUDGE_FACTOR);
53 for (Iterator iterator = filteredEvents.iterator(); iterator.hasNext();) {
54 LoggingEvent event = ((LoggingEventWrapper) iterator.next()).getLoggingEvent();
55 writer.append(layout.format(event));
56 }
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58 StringSelection stringSelection = new StringSelection(writer.toString());
59 Toolkit.getDefaultToolkit().getSystemClipboard().setContents(stringSelection,
60 stringSelection);
61 }
62
63 }