Source Code Cross Referenced for ObjectPanel.java in  » Testing » Unicorn » org » savarese » unicorn » ui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » Unicorn » org.savarese.unicorn.ui 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: ObjectPanel.java 6115 2006-01-30 04:50:47Z dfs $
003:         *
004:         * Copyright 2004-2006 Daniel F. Savarese
005:         *
006:         * Licensed under the Apache License, Version 2.0 (the "License");
007:         * you may not use this file except in compliance with the License.
008:         * You may obtain a copy of the License at
009:         *
010:         *     http://www.savarese.org/software/ApacheLicense-2.0
011:         *
012:         * Unless required by applicable law or agreed to in writing, software
013:         * distributed under the License is distributed on an "AS IS" BASIS,
014:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015:         * See the License for the specific language governing permissions and
016:         * limitations under the License.
017:         */
018:
019:        package org.savarese.unicorn.ui;
020:
021:        import java.awt.*;
022:        import java.awt.event.*;
023:        import java.lang.reflect.*;
024:        import java.util.*;
025:
026:        import javax.swing.*;
027:        import javax.swing.border.*;
028:        import javax.swing.text.*;
029:
030:        import javax.management.*;
031:
032:        import org.savarese.unicorn.ui.event.*;
033:        import org.savarese.unicorn.util.Sorting;
034:        import org.savarese.unicorn.util.Types;
035:
036:        /**
037:         * A Swing component that dynamically assembles a user interface for
038:         * invoking the methods of an object wrapped by an {@link
039:         * ObjectPanelModel} implementation.
040:         */
041:        public class ObjectPanel<O extends Object> extends JPanel {
042:
043:            //  private static final Color __ATTRIBUTE_COLOR = new Color(60, 70, 116);
044:            private static final Color __ATTRIBUTE_COLOR = new Color(35, 70, 8);
045:            private static final Color __METHOD_COLOR = new Color(107, 2, 4);
046:
047:            private ObjectPanelModel<O> __model;
048:            private ObjectPanelModelListener<O> __modelListener;
049:            private Comparator<MBeanAttributeInfo> __attributeComparator;
050:            private Comparator<MBeanConstructorInfo> __constructorComparator;
051:            private Comparator<MBeanOperationInfo> __operationComparator;
052:            private Border __originalBorder;
053:            private ArrayList<Attribute> __attributes;
054:            private ActionListener __refreshListener;
055:
056:            class Attribute implements  ActionListener {
057:                String _name;
058:                Class _type;
059:                JTextComponent _field;
060:
061:                Attribute(String name, String type, JTextComponent field)
062:                        throws ClassNotFoundException {
063:                    _name = name;
064:                    _field = field;
065:                    _type = Types.getClass(type);
066:                }
067:
068:                void refresh() {
069:                    Object value = null;
070:
071:                    try {
072:                        value = __model.getAttribute(_name);
073:                    } catch (Exception e) {
074:                        value = "Error: could not be obtained: "
075:                                + e.getMessage();
076:                    }
077:
078:                    _field.setText(Types.convert(value));
079:                }
080:
081:                public void actionPerformed(ActionEvent event) {
082:                    try {
083:                        __model.setAttribute(_name, Types.convert(_field
084:                                .getText(), _type));
085:                    } catch (Exception e) {
086:                        // TODO: Should log this.
087:                        throw new RuntimeException(e);
088:                    }
089:                }
090:            }
091:
092:            class InvocationAction extends AbstractAction {
093:                private String __method;
094:                private String[] __typeNames;
095:                private Class[] __types;
096:                private JTextComponent[] __args;
097:                private JTextArea __resultArea;
098:
099:                private void invoke() {
100:                    Object[] values = new Object[__args.length];
101:
102:                    try {
103:                        for (int i = 0; i < values.length; ++i)
104:                            values[i] = Types.convert(__args[i].getText(),
105:                                    __types[i]);
106:
107:                        Object result = __model.invoke(__method, values,
108:                                __types, __typeNames);
109:
110:                        if (__resultArea != null)
111:                            __resultArea.setText(Types.convert(result));
112:                    } catch (Exception e) {
113:                        // TODO: Should really log and open up an error dialog
114:                        throw new RuntimeException(e);
115:                    }
116:                }
117:
118:                public InvocationAction(String name, String method,
119:                        JTextComponent[] args, String[] typeNames,
120:                        Class[] argTypes)
121:
122:                {
123:                    super (name);
124:                    __method = method;
125:                    __args = args;
126:                    __types = argTypes;
127:                    __typeNames = typeNames;
128:                    __resultArea = null;
129:                }
130:
131:                public void setResultArea(JTextArea area) {
132:                    __resultArea = area;
133:                }
134:
135:                public void actionPerformed(ActionEvent e) {
136:                    invoke();
137:                }
138:            }
139:
140:            private JPanel __makeFieldPanel(String title, JTextComponent field,
141:                    boolean editable, Color titleColor) {
142:                JPanel panel = Util._makePanel(title, titleColor);
143:
144:                field.setBackground(Color.WHITE);
145:                field.setEditable(editable);
146:                field.setAlignmentX(Component.LEFT_ALIGNMENT);
147:
148:                if (field instanceof  JTextField) {
149:                    Dimension max = field.getMaximumSize();
150:                    max.height = field.getFontMetrics(field.getFont())
151:                            .getHeight();
152:                    max.height += (max.height >> 2);
153:                    field.setMaximumSize(max);
154:                    Dimension pref = field.getPreferredSize();
155:                    pref.height = max.height;
156:                    field.setPreferredSize(pref);
157:                    panel.add(field);
158:                } else if (field instanceof  JTextArea) {
159:                    JTextArea area = (JTextArea) field;
160:                    JScrollPane pane = new JScrollPane(area);
161:                    area.setColumns(20);
162:                    area.setRows(4);
163:                    pane.setAlignmentX(Component.LEFT_ALIGNMENT);
164:                    panel.add(pane);
165:                }
166:
167:                return panel;
168:            }
169:
170:            private JPanel __makeFieldPanel(String title, JTextComponent field,
171:                    boolean editable) {
172:                return __makeFieldPanel(title, field, editable, Color.BLACK);
173:            }
174:
175:            private JPanel __makeLabelPanel(String title, String text) {
176:                JPanel panel = Util._makePanel(title);
177:                JLabel label = new JLabel(text);
178:
179:                label.setAlignmentX(Component.LEFT_ALIGNMENT);
180:
181:                panel.add(label);
182:
183:                return panel;
184:            }
185:
186:            private void __refreshProperties() {
187:                for (Attribute a : __attributes)
188:                    a.refresh();
189:            }
190:
191:            private void __addHeader(String name, MBeanInfo info) {
192:                TitledBorder border = BorderFactory
193:                        .createTitledBorder(BorderFactory
194:                                .createEtchedBorder(EtchedBorder.LOWERED));
195:                border.setTitle(name);
196:                setBorder(border);
197:
198:                add(__makeLabelPanel("Class", info.getClassName()));
199:                add(__makeLabelPanel("Description", info.getDescription()));
200:            }
201:
202:            private void __addAttribute(JPanel panel, MBeanAttributeInfo info) {
203:                Object value;
204:                String access;
205:                JPanel attributePanel;
206:                String name = info.getName();
207:                String type = info.getType();
208:                boolean editable = info.isWritable();
209:                JTextComponent attributeField = null;
210:                Attribute attribute = null;
211:
212:                try {
213:                    // TODO: Batch all attributes with a call to
214:                    // MBeanServerConnection.getAttributes
215:                    value = __model.getAttribute(name);
216:
217:                    if (value instanceof  Object[]) {
218:                        JTextArea area = new JTextArea();
219:                        area.setLineWrap(true);
220:                        attributeField = area;
221:                    } else
222:                        attributeField = new JTextField();
223:
224:                    if (editable || info.isReadable())
225:                        attribute = new Attribute(name, type, attributeField);
226:
227:                    if (info.isReadable())
228:                        __attributes.add(attribute);
229:
230:                } catch (Exception e) {
231:                    value = "Error: could not be obtained: " + e.getMessage();
232:                    editable = false;
233:                } finally {
234:                    if (attributeField == null)
235:                        attributeField = new JTextField();
236:                }
237:
238:                // We don't consider the non-readable/non-writable case because
239:                // then it's not an attribute
240:                if (info.isReadable() && !info.isWritable())
241:                    access = "Read Only";
242:                else if (!info.isReadable() && info.isWritable())
243:                    access = "Write Only";
244:                else
245:                    access = "Read/Write";
246:
247:                attributeField.setText(Types.convert(value));
248:
249:                attributePanel = __makeFieldPanel(name + " : " + type + " : "
250:                        + access, attributeField, editable, __ATTRIBUTE_COLOR);
251:
252:                if (editable) {
253:                    ChainedActionListener listener = new ChainedActionListener();
254:                    listener.addEventListener(attribute);
255:                    listener.addEventListener(__refreshListener);
256:
257:                    if (attributeField instanceof  JTextField)
258:                        ((JTextField) attributeField)
259:                                .addActionListener(listener);
260:                    else {
261:                        JButton button = new JButton("Set");
262:                        button.addActionListener(listener);
263:                        panel.add(button);
264:                    }
265:                }
266:
267:                panel.add(attributePanel);
268:            }
269:
270:            private void __addMethod(JPanel panel, String name, String retType,
271:                    String description, MBeanParameterInfo[] signature,
272:                    boolean invokable) {
273:                JPanel methodPanel;
274:                String method = new String(name);
275:                String[] typeNames = new String[signature.length];
276:                Class[] types = new Class[signature.length];
277:                JTextComponent[] fields = new JTextComponent[signature.length];
278:                boolean error = false;
279:                String errorMessage = "";
280:                int i;
281:
282:                name += "(";
283:
284:                if (signature.length > 0) {
285:                    i = 0;
286:                    while (true) {
287:                        name += signature[i].getType();
288:                        if (++i >= signature.length)
289:                            break;
290:                        name += ",";
291:                    }
292:                }
293:
294:                name += ")";
295:
296:                if (retType == null)
297:                    methodPanel = Util._makePanel(name, __METHOD_COLOR);
298:                else
299:                    methodPanel = Util._makePanel(retType + " " + name,
300:                            __METHOD_COLOR);
301:
302:                JPanel descriptionPanel = __makeLabelPanel("Description",
303:                        description);
304:                methodPanel.add(descriptionPanel);
305:
306:                if (signature.length > 0) {
307:                    JPanel paramPanel = Util._makePanel("Parameters");
308:
309:                    for (i = 0; i < signature.length; i++) {
310:                        String type = signature[i].getType();
311:                        String title = "(" + type + ")"
312:                                + signature[i].getName();
313:
314:                        typeNames[i] = type;
315:
316:                        try {
317:                            types[i] = Types.getClass(type);
318:                        } catch (ClassNotFoundException cnfe) {
319:                            // TODO: log this
320:                            cnfe.printStackTrace();
321:                            errorMessage += cnfe.getMessage();
322:                            error = true;
323:                        }
324:
325:                        if (types[i].isArray()) {
326:                            JTextArea area = new JTextArea();
327:                            area.setLineWrap(true);
328:                            fields[i] = area;
329:                        } else
330:                            fields[i] = new JTextField("");
331:
332:                        JPanel p = __makeFieldPanel(title, fields[i], invokable);
333:
334:                        paramPanel.add(p);
335:                    }
336:
337:                    methodPanel.add(paramPanel);
338:                }
339:
340:                if (invokable) {
341:                    if (!error) {
342:                        InvocationAction action = new InvocationAction(
343:                                "Invoke", method, fields, typeNames, types);
344:                        JButton button = new JButton("Invoke");
345:                        ChainedActionListener listener = new ChainedActionListener();
346:
347:                        listener.addEventListener(action);
348:                        listener.addEventListener(__refreshListener);
349:                        button.addActionListener(listener);
350:                        methodPanel.add(button);
351:
352:                        // Create area to display result
353:                        if (!"void".equals(retType)) {
354:                            JTextArea area = new JTextArea();
355:                            area.setLineWrap(true);
356:                            action.setResultArea(area);
357:                            methodPanel.add(__makeFieldPanel("Result", area,
358:                                    false));
359:                        }
360:                    } else {
361:                        String message = "Invocation information could not be collected: "
362:                                + errorMessage;
363:                        JLabel label = new JLabel(message);
364:                        label.setForeground(Color.RED);
365:                        methodPanel.add(label);
366:                    }
367:                }
368:
369:                panel.add(methodPanel);
370:            }
371:
372:            private void __addConstructor(JPanel panel,
373:                    MBeanConstructorInfo info) {
374:                __addMethod(panel, info.getName(), null, info.getDescription(),
375:                        info.getSignature(), false);
376:            }
377:
378:            private void __addOperation(JPanel panel, MBeanOperationInfo info) {
379:                __addMethod(panel, info.getName(), info.getReturnType(), info
380:                        .getDescription(), info.getSignature(), true);
381:            }
382:
383:            private void __addAttributes(MBeanAttributeInfo[] attributes) {
384:                JPanel panel = Util._makePanel("Attributes");
385:
386:                Arrays.sort(attributes, __attributeComparator);
387:
388:                for (int i = 0; i < attributes.length; ++i)
389:                    __addAttribute(panel, attributes[i]);
390:
391:                add(panel);
392:            }
393:
394:            private void __addConstructors(MBeanConstructorInfo[] constructors) {
395:                JPanel panel = Util._makePanel("Constructors");
396:
397:                Arrays.sort(constructors, __constructorComparator);
398:
399:                for (int i = 0; i < constructors.length; ++i)
400:                    __addConstructor(panel, constructors[i]);
401:
402:                add(panel);
403:            }
404:
405:            private void __addOperations(MBeanOperationInfo[] operations) {
406:                JPanel panel = Util._makePanel("Operations");
407:
408:                Arrays.sort(operations, __operationComparator);
409:
410:                for (int i = 0; i < operations.length; ++i)
411:                    __addOperation(panel, operations[i]);
412:
413:                add(panel);
414:            }
415:
416:            private void __assembleComponents() {
417:                __attributes.clear();
418:                removeAll();
419:                setBorder(__originalBorder);
420:
421:                if (__model == null || !__model.isValid())
422:                    return;
423:
424:                MBeanInfo info;
425:
426:                info = __model.getObjectInfo();
427:
428:                __addHeader(__model.getObjectName(), info);
429:                __addAttributes(info.getAttributes());
430:                __addConstructors(info.getConstructors());
431:                __addOperations(info.getOperations());
432:            }
433:
434:            /**
435:             * Instantiates an ObjectPanel backed by the specified
436:             * {@link ObjectPanelModel}.
437:             *
438:             * @param model The {@link ObjectPanelModel} to back the ObjectPanel view.
439:             */
440:            public ObjectPanel(ObjectPanelModel<O> model) {
441:                __attributeComparator = new Sorting.MBeanAttributeInfoComparator();
442:                __constructorComparator = new Sorting.MBeanConstructorInfoComparator();
443:                __operationComparator = new Sorting.MBeanOperationInfoComparator();
444:                __originalBorder = getBorder();
445:
446:                __attributes = new ArrayList<Attribute>();
447:
448:                __refreshListener = new ActionListener() {
449:                    public void actionPerformed(ActionEvent e) {
450:                        __refreshProperties();
451:                    }
452:                };
453:
454:                __modelListener = new ObjectPanelModelListener<O>() {
455:                    public void modelChanged(ObjectPanelModel<O> model) {
456:                        __assembleComponents();
457:                        revalidate();
458:                        repaint();
459:                    }
460:                };
461:
462:                setLayout(new BoxLayout(this , BoxLayout.PAGE_AXIS));
463:                setModel(model);
464:            }
465:
466:            /**
467:             * Sets the {@link ObjectPanelModel} to back the ObjectPanel view.
468:             *
469:             * @param model The {@link ObjectPanelModel} to back the ObjectPanel view.
470:             */
471:            public void setModel(ObjectPanelModel<O> model) {
472:                if (__model != null)
473:                    __model.removeObjectPanelModelListener(__modelListener);
474:
475:                __model = model;
476:
477:                if (__model != null)
478:                    __model.addObjectPanelModelListener(__modelListener);
479:
480:                __assembleComponents();
481:            }
482:
483:            /**
484:             * Returns the {@link ObjectPanelModel} that backs the ObjectPanel view.
485:             *
486:             * @return The {@link ObjectPanelModel} that backs the ObjectPanel view.
487:             */
488:            public ObjectPanelModel<O> getModel() {
489:                return __model;
490:            }
491:
492:        }
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