1 | package de.ugoe.cs.eventbench.jfcmonitor;
|
---|
2 |
|
---|
3 | import java.awt.AWTEvent;
|
---|
4 | import java.awt.Component;
|
---|
5 | import java.awt.event.AWTEventListener;
|
---|
6 | import java.awt.event.KeyEvent;
|
---|
7 | import java.awt.event.MouseEvent;
|
---|
8 | import java.io.IOException;
|
---|
9 | import java.io.OutputStreamWriter;
|
---|
10 | import java.lang.reflect.InvocationTargetException;
|
---|
11 | import java.lang.reflect.Method;
|
---|
12 |
|
---|
13 | import de.ugoe.cs.util.StringTools;
|
---|
14 |
|
---|
15 | /**
|
---|
16 | * <p>
|
---|
17 | * This class implements monitoring of AWT and Swing mouse and keyboard events.
|
---|
18 | * Each of the events is written to an output stream.
|
---|
19 | * </p>
|
---|
20 | *
|
---|
21 | * @author Steffen Herbold
|
---|
22 | * @version 1.0
|
---|
23 | */
|
---|
24 | public class JFCListener implements AWTEventListener {
|
---|
25 |
|
---|
26 | /**
|
---|
27 | * <p>
|
---|
28 | * Convenience variable.
|
---|
29 | * </p>
|
---|
30 | */
|
---|
31 | final static private String ENDLINE = System.getProperty("line.separator");
|
---|
32 |
|
---|
33 | /**
|
---|
34 | * <p>
|
---|
35 | * Writer for logging events.
|
---|
36 | * </p>
|
---|
37 | */
|
---|
38 | final private OutputStreamWriter outputWriter;
|
---|
39 |
|
---|
40 | /**
|
---|
41 | * <p>
|
---|
42 | * Constructor. Creates a new JFCListener with a given
|
---|
43 | * {@link OutputStreamWriter}, where the monitored information is logged.
|
---|
44 | * </p>
|
---|
45 | *
|
---|
46 | * @param outputWriter
|
---|
47 | * writer for the logged information
|
---|
48 | */
|
---|
49 | public JFCListener(OutputStreamWriter outputWriter) {
|
---|
50 | this.outputWriter = outputWriter;
|
---|
51 | try {
|
---|
52 | outputWriter.write("<?xml version=\"1.0\" encoding=\"UTF-16\"?>"
|
---|
53 | + ENDLINE);
|
---|
54 | outputWriter.write("<sessions>" + ENDLINE);
|
---|
55 | } catch (IOException e) {
|
---|
56 | System.err.println("JFCMONITOR -- Failure writing to log: "
|
---|
57 | + e.getMessage());
|
---|
58 | }
|
---|
59 | }
|
---|
60 |
|
---|
61 | /**
|
---|
62 | * <p>
|
---|
63 | * Writes all received {@link MouseEvent}s and {@link KeyEvent}s to the
|
---|
64 | * {@link #outputWriter}.
|
---|
65 | * </p>
|
---|
66 | *
|
---|
67 | * @see java.awt.event.AWTEventListener#eventDispatched(java.awt.AWTEvent)
|
---|
68 | */
|
---|
69 | @Override
|
---|
70 | public void eventDispatched(AWTEvent event) {
|
---|
71 | StringBuilder builder = new StringBuilder();
|
---|
72 |
|
---|
73 | if (event instanceof MouseEvent) {
|
---|
74 | MouseEvent mouseEvent = (MouseEvent) event;
|
---|
75 | if (!isMouseMovement(event.getID())) {
|
---|
76 | builder.append("<event id=\"" + event.getID() + "\">" + ENDLINE);
|
---|
77 | builder.append(" <param name=\"X\" value=\""
|
---|
78 | + mouseEvent.getX() + "\" />" + ENDLINE);
|
---|
79 | builder.append(" <param name=\"Y\" value=\""
|
---|
80 | + mouseEvent.getY() + "\" />" + ENDLINE);
|
---|
81 | builder.append(" <param name=\"Button\" value=\""
|
---|
82 | + mouseEvent.getButton() + "\" />" + ENDLINE);
|
---|
83 | builder.append(" <param name=\"Modifiers\" value=\""
|
---|
84 | + mouseEvent.getModifiers() + "\" />" + ENDLINE);
|
---|
85 | addSourceInfo(builder, event);
|
---|
86 | builder.append("</event>" + ENDLINE);
|
---|
87 | }
|
---|
88 | }
|
---|
89 | if (event instanceof KeyEvent) {
|
---|
90 | KeyEvent keyEvent = (KeyEvent) event;
|
---|
91 | if (keyEvent.getID() == KeyEvent.KEY_TYPED) {
|
---|
92 | builder.append("<event id=\"" + event.getID() + "\">" + ENDLINE);
|
---|
93 | builder.append(" <param name=\"KeyCode\" value=\""
|
---|
94 | + keyEvent.getKeyCode() + "\" />" + ENDLINE);
|
---|
95 | builder.append(" <param name=\"Modifiers\" value=\""
|
---|
96 | + keyEvent.getModifiers() + "\" />" + ENDLINE);
|
---|
97 | addSourceInfo(builder, event);
|
---|
98 | builder.append("</event>" + ENDLINE);
|
---|
99 | }
|
---|
100 | }
|
---|
101 | if (builder.length() > 0 && outputWriter != null) {
|
---|
102 | try {
|
---|
103 | outputWriter.write(builder.toString());
|
---|
104 | outputWriter.flush();
|
---|
105 | } catch (IOException e) {
|
---|
106 | System.err.println("JFCMONITOR -- Failure writing to log: "
|
---|
107 | + e.getMessage());
|
---|
108 | }
|
---|
109 | }
|
---|
110 | }
|
---|
111 |
|
---|
112 | /**
|
---|
113 | * <p>
|
---|
114 | * Appends information about the event to a {@link StringBuilder}.
|
---|
115 | * </p>
|
---|
116 | *
|
---|
117 | * @param builder
|
---|
118 | * {@link StringBuilder} where the information is appended
|
---|
119 | * @param event
|
---|
120 | * event whose information is appended
|
---|
121 | */
|
---|
122 | private void addSourceInfo(StringBuilder builder, AWTEvent event) {
|
---|
123 | builder.append(" <source>" + ENDLINE);
|
---|
124 | builder.append(" <param name=\"toString\" value=\""
|
---|
125 | + StringTools
|
---|
126 | .xmlEntityReplacement(event.getSource().toString())
|
---|
127 | + "\" />" + ENDLINE);
|
---|
128 | if (event.getSource() instanceof Component) {
|
---|
129 | Component source = (Component) event.getSource();
|
---|
130 | addComponentInfo(builder, source);
|
---|
131 | builder.append(" <parent>" + ENDLINE);
|
---|
132 | addComponentInfo(builder, source.getParent());
|
---|
133 | builder.append(" </parent>" + ENDLINE);
|
---|
134 | }
|
---|
135 | builder.append(" </source>" + ENDLINE);
|
---|
136 | }
|
---|
137 |
|
---|
138 | /**
|
---|
139 | * <p>
|
---|
140 | * Appends information about the component to the a {@link StringBuilder}.
|
---|
141 | * The prefix can be used to give further information about the component.
|
---|
142 | * </p>
|
---|
143 | *
|
---|
144 | * @param builder
|
---|
145 | * {@link StringBuilder} where the information is appended
|
---|
146 | * @param component
|
---|
147 | * component whose information is appended
|
---|
148 | */
|
---|
149 | private void addComponentInfo(StringBuilder builder, Component component) {
|
---|
150 | builder.append(" <param name=\"getName\" value=\""
|
---|
151 | + StringTools.xmlEntityReplacement(component.getName())
|
---|
152 | + "\" />" + ENDLINE);
|
---|
153 | for (Method method : component.getClass().getMethods()) {
|
---|
154 | try {
|
---|
155 | if (method.getName() == "getText") {
|
---|
156 | String text = (String) method.invoke(component,
|
---|
157 | new Object[] {});
|
---|
158 | if (text != null) {
|
---|
159 | builder.append(" <param name=\"getText\" value=\""
|
---|
160 | + StringTools.xmlEntityReplacement(text)
|
---|
161 | + "\" />" + ENDLINE);
|
---|
162 | }
|
---|
163 | }
|
---|
164 | if (method.getName() == "getTitle") {
|
---|
165 | String title = (String) method.invoke(component,
|
---|
166 | new Object[] {});
|
---|
167 | if (title != null) {
|
---|
168 | builder.append(" <param name=\"getTitle\" value=\""
|
---|
169 | + StringTools.xmlEntityReplacement(title)
|
---|
170 | + "\" />" + ENDLINE);
|
---|
171 | }
|
---|
172 | }
|
---|
173 | } catch (IllegalArgumentException e) {
|
---|
174 | } catch (IllegalAccessException e) {
|
---|
175 | } catch (InvocationTargetException e) {
|
---|
176 | System.err.println("Found method with name " + method.getName()
|
---|
177 | + " but could not access it.");
|
---|
178 | }
|
---|
179 | }
|
---|
180 | }
|
---|
181 |
|
---|
182 | /**
|
---|
183 | * <p>
|
---|
184 | * Checks if the Id of an {@link AWTEvent} is a mouse movement Id.
|
---|
185 | * </p>
|
---|
186 | *
|
---|
187 | * @param eventId
|
---|
188 | * id of the {@link AWTEvent}
|
---|
189 | * @return true, if the event is a mouse movement event; false otherwise
|
---|
190 | */
|
---|
191 | private boolean isMouseMovement(int eventId) {
|
---|
192 | return eventId == MouseEvent.MOUSE_MOVED
|
---|
193 | || eventId == MouseEvent.MOUSE_DRAGGED
|
---|
194 | || eventId == MouseEvent.MOUSE_ENTERED
|
---|
195 | || eventId == MouseEvent.MOUSE_EXITED;
|
---|
196 | }
|
---|
197 |
|
---|
198 | }
|
---|