Source Code Cross Referenced for ViewMemoryPanel.java in  » 6.0-JDK-Modules » j2me » view » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » view 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *   
003:         *
004:         * Copyright  1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006:         * 
007:         * This program is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU General Public License version
009:         * 2 only, as published by the Free Software Foundation.
010:         * 
011:         * This program is distributed in the hope that it will be useful, but
012:         * WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:         * General Public License version 2 for more details (a copy is
015:         * included at /legal/license.txt).
016:         * 
017:         * You should have received a copy of the GNU General Public License
018:         * version 2 along with this work; if not, write to the Free Software
019:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA
021:         * 
022:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023:         * Clara, CA 95054 or visit www.sun.com if you need additional
024:         * information or have any questions.
025:         */
026:
027:        package view;
028:
029:        import java.awt.*;
030:        import java.awt.event.*;
031:        import java.util.Iterator;
032:        import javax.swing.*;
033:        import com.sun.cldchi.tools.memoryprofiler.data.*;
034:
035:        public class ViewMemoryPanel extends JComponent {
036:            MPDataProvider _data_provider;
037:
038:            //paramenters of view
039:            private static final int _hor_bloc_number = 100;
040:            private static final int _ver_bloc_number = 20;
041:            private static final int _block_number = _hor_bloc_number
042:                    * _ver_bloc_number;
043:            private int _block_height = -1;
044:            private int _block_width = -1;
045:
046:            //the arrays are used for temperature calculation
047:            private double[] _block_utilization_count = new double[_block_number];
048:
049:            private JavaClass selected_class = null;
050:            private int[] _block_object_count = new int[_block_number];
051:
052:            //various addresses at start_offset and at end_offset
053:            private int _inline_allocation_top = -1;
054:            private int _old_generation_end = -1;
055:            private int _heap_start = -1;
056:            private int _heap_top = -1;
057:
058:            public ViewMemoryPanel(MPDataProvider data_provider) {
059:                _data_provider = data_provider;
060:                setMinimumSize(new Dimension(600, 300));
061:                addMouseListener(new ViewMemoryMouseListener());
062:            }
063:
064:            public void set_selected_class_id(JavaClass jc) {
065:                selected_class = jc;
066:            }
067:
068:            public void update() {
069:                _inline_allocation_top = _data_provider.get_allocation_top();
070:                _old_generation_end = _data_provider.get_old_gen_end();
071:                _heap_start = _data_provider.get_heap_start();
072:                _heap_top = _data_provider.get_heap_top();
073:                update_block_utilization();
074:                repaint();
075:            }
076:
077:            public void paint(Graphics g) {
078:                Dimension size = getSize();
079:                _block_width = (size.width - 150) / _hor_bloc_number;
080:                _block_height = size.height / _ver_bloc_number;
081:                prepare_blocks();
082:                for (int i = 0; i < _block_number; i++) {
083:                    draw_block(g, i);
084:                }
085:                draw_inline_allocations(g);
086:                draw_old_generation_end(g);
087:                draw_agenda(g);
088:            }
089:
090:            public void draw_agenda(Graphics g) {
091:                int x = _block_width * _hor_bloc_number + 10;
092:                int y = 1;
093:                draw_block_symbol(g, x, y, 100, 0);
094:                draw_allocation_top_symbol(g, x, y, false);
095:                g.setColor(Color.BLACK);
096:                g.drawString("_inline_allocation_top block", x + 2
097:                        * _block_width, y + _block_height);
098:
099:                y += 2 * _block_height;
100:                draw_block_symbol(g, x, y, 100, 0);
101:                draw_old_generation_end_symbol(g, x, y, false);
102:                g.setColor(Color.BLACK);
103:                g.drawString("_old_generation_end block", x + 2 * _block_width,
104:                        y + _block_height);
105:
106:                y += 2 * _block_height;
107:                draw_block_symbol(g, x, y, 1, 0);
108:                g.setColor(Color.BLACK);
109:                g.drawString("block with 100% utilization", x + 2
110:                        * _block_width, y + _block_height);
111:
112:                y += 2 * _block_height;
113:                draw_block_symbol(g, x, y, 0.5, 0);
114:                g.setColor(Color.BLACK);
115:                g.drawString("block with 50% utilization",
116:                        x + 2 * _block_width, y + _block_height);
117:
118:                y += 2 * _block_height;
119:                draw_block_symbol(g, x, y, 0, 0);
120:                g.setColor(Color.BLACK);
121:                g.drawString("block with 0% utilization", x + 2 * _block_width,
122:                        y + _block_height);
123:
124:                y += 2 * _block_height;
125:                draw_block_symbol(g, x, y, 100, 1);
126:                g.setColor(Color.BLACK);
127:                g.drawString("block with object ", x + 2 * _block_width, y
128:                        + _block_height / 2);
129:                g.drawString("of selected type", x + 2 * _block_width, y
130:                        + (3 * _block_height) / 2);
131:
132:                y += 2 * _block_height;
133:                draw_block_symbol(g, x, y, 100, 110);
134:                g.setColor(Color.BLACK);
135:                g.drawString("block with many objects ", x + 2 * _block_width,
136:                        y + _block_height / 2);
137:                g.drawString("of selected type", x + 2 * _block_width, y
138:                        + (3 * _block_height) / 2);
139:
140:            }
141:
142:            public Dimension getPreferredSize() {
143:                return new Dimension(900, 300);
144:            }
145:
146:            private void draw_old_generation_end(Graphics g) {
147:                int i = get_block_number(_old_generation_end);
148:                int x = _block_width * (i % _hor_bloc_number);
149:                int y = _block_height * (i / _hor_bloc_number);
150:                draw_old_generation_end_symbol(g, x, y, false);
151:            }
152:
153:            private void draw_inline_allocations(Graphics g) {
154:                int i = get_block_number(_inline_allocation_top);
155:                int x = _block_width * (i % _hor_bloc_number);
156:                int y = _block_height * (i / _hor_bloc_number);
157:                draw_allocation_top_symbol(g, x, y, false);
158:            }
159:
160:            private void draw_block(Graphics g, int i) {
161:                int x = _block_width * (i % _hor_bloc_number);
162:                int y = _block_height * (i / _hor_bloc_number);
163:                draw_block_symbol(g, x, y, _block_utilization_count[i],
164:                        _block_object_count[i]);
165:            }
166:
167:            private void prepare_blocks() {
168:                for (int i = 0; i < _block_number; i++) {
169:                    _block_object_count[i] = 0;
170:                }
171:
172:                JavaObject[] objects = _data_provider
173:                        .getObjectsOfClass(selected_class);
174:                for (int i = 0; i < objects.length; i++) {
175:                    int address = objects[i].address;
176:                    int block_number = get_block_number(address);
177:                    _block_object_count[block_number]++;
178:                }
179:            }
180:
181:            private void update_block_utilization() {
182:                for (int i = 0; i < _block_number; i++) {
183:                    int start = get_address_by_block_num(i);
184:                    int end = get_address_by_block_num(i + 1);
185:                    JavaObject[] objects = _data_provider
186:                            .getObjectsFromTheAddresses(start, end);
187:                    int full_size = 0;
188:                    int real_size = 0;
189:                    for (int j = 0; j < objects.length; j++) {
190:                        full_size += objects[j].size;
191:                        if (objects[j].alive())
192:                            real_size += objects[j].size;
193:                    }
194:                    if (full_size == 0) {
195:                        _block_utilization_count[i] = 1;
196:                    } else {
197:                        _block_utilization_count[i] = ((double) real_size)
198:                                / full_size;
199:                    }
200:                }
201:
202:            }
203:
204:            private int get_block_number(int address) {
205:                if (address < _heap_start || address > _heap_top) {
206:                    return -1;
207:                }
208:                double tmp = ((double) (address - _heap_start))
209:                        / (_heap_top - _heap_start);
210:                int res = (int) (tmp * _block_number);
211:                return res;
212:            }
213:
214:            private int get_block_num_by_mouse_event(MouseEvent e) {
215:                return e.getY() / _block_height * _hor_bloc_number + e.getX()
216:                        / _block_width;
217:            }
218:
219:            private int get_address_by_block_num(int block_num) {
220:                return (int) (_heap_start + (_heap_top - _heap_start)
221:                        * (((double) block_num) / _block_number));
222:            }
223:
224:            private void draw_allocation_top_symbol(Graphics g, int x, int y,
225:                    boolean gc) {
226:                g.setColor(new Color(164, 255, 64));
227:                g.drawRect(x, y, 1, _block_height);
228:            }
229:
230:            private void draw_old_generation_end_symbol(Graphics g, int x,
231:                    int y, boolean gc) {
232:                g.setColor(new Color(64, 64, 255));
233:                g.drawRect(x, y, 1, _block_height);
234:            }
235:
236:            private void draw_block_symbol(Graphics g, int x, int y,
237:                    double utilization, int objects_num) {
238:                int util = (int) (255 * Math.sqrt(1 - utilization));
239:                g.setColor(new Color(util, 0, 0));
240:                g.fillRect(x + 1, y + 1, _block_width - 1, _block_height - 1);
241:                g.setColor(new Color(255, 255, 0));
242:                int radius = 0;
243:                if (objects_num > 0)
244:                    radius = 1;
245:                if (objects_num > 10)
246:                    radius = 2;
247:                if (objects_num > 100) {
248:                    radius = 3;
249:                    x--;
250:                }
251:                g.fillOval(x + _block_width / 2, y + _block_height / 2, radius,
252:                        radius);
253:            }
254:
255:            public boolean contains(int x, int y) {
256:                if (!super .contains(x, y))
257:                    return false;
258:                if (y > _block_height * _ver_bloc_number
259:                        || x > _block_width * _hor_bloc_number)
260:                    return false;
261:                int blockNum = (y / _block_height) * _hor_bloc_number + x
262:                        / _block_width;
263:                int address = get_address_by_block_num(blockNum);
264:                setToolTipText("0x" + Integer.toHexString(address));
265:                return true;
266:            }
267:
268:            class ViewMemoryMouseListener extends MouseAdapter {
269:                public void mouseClicked(MouseEvent e) {
270:                    if (e.getButton() != MouseEvent.BUTTON1) {
271:                        return;
272:                    }
273:                    int start = get_address_by_block_num(get_block_num_by_mouse_event(e));
274:                    int end = get_address_by_block_num(get_block_num_by_mouse_event(e) + 1);
275:                    String title = "Objects from " + Integer.toHexString(start)
276:                            + " to " + Integer.toHexString(end);
277:                    ViewRootPathDialog.showDialog(ViewMemoryPanel.this,
278:                            _data_provider.getObjectsFromTheAddresses(start,
279:                                    end), title, _data_provider);
280:                }
281:            }
282:        }
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