net.sourceforge.phpeclipse.xdebug.core/src/net/sourceforge/phpeclipse/xdebug/php/model/XDebugThread.java

   1 /*
   2  * Created on 23.11.2004
   3  *
   4  * TODO To change the template for this generated file go to
   5  * Window - Preferences - Java - Code Style - Code Templates
   6  */
   7 package net.sourceforge.phpeclipse.xdebug.php.model;
   8
   9 import java.net.MalformedURLException;
  10 import java.net.URL;
  11
  12 import net.sourceforge.phpeclipse.xdebug.core.PHPDebugUtils;
  13 import net.sourceforge.phpeclipse.xdebug.core.xdebug.ResponseListener.XDebugResponse;
  14
  15 import org.eclipse.debug.core.DebugEvent;
  16 import org.eclipse.debug.core.DebugException;
  17 import org.eclipse.debug.core.DebugPlugin;
  18 import org.eclipse.debug.core.IDebugEventSetListener;
  19 import org.eclipse.debug.core.model.IBreakpoint;
  20 import org.eclipse.debug.core.model.IStackFrame;
  21 import org.eclipse.debug.core.model.IThread;
  22 import org.w3c.dom.Node;
  23 import org.w3c.dom.NodeList;
  24
  25 /**
  26  * @author Axel
  27  *
  28  * TODO To change the template for this generated type comment go to
  29  * Window - Preferences - Java - Code Style - Code Templates
  30  */
  31 public class XDebugThread extends XDebugElement implements IThread, IDebugEventSetListener {
  32         private XDebugStackFrame[]  fStackFrames;
  33
  34         private IBreakpoint[] fBreakpoints;
  35
  36         /* Whether this thread is stepping */
  37         private boolean fStepping = false;
  38         private boolean fTerminated = false;
  39
  40         private int fStepCount = 0;
  41         private int fCurrentStepCount = 0;
  42
  43         /**
  44          * Constructs a new thread for the given target
  45          *
  46          * @param target VM
  47          */
  48         public XDebugThread(XDebugTarget target) {
  49                 super(target);
  50                 DebugPlugin.getDefault().addDebugEventListener(this);
  51                 fStackFrames = null;
  52         }
  53
  54         public void incrementStepCounter() {
  55                 fStepCount++;
  56         }
  57         public IStackFrame[] getStackFrames() throws DebugException {
  58                 if (!isSuspended()) {
  59                         return new IStackFrame[0];
  60                 }
  61
  62                 if (fStepCount > fCurrentStepCount) {
  63                         XDebugResponse dr = ((XDebugTarget) getDebugTarget()).getStackFrames();
  64                         XDebugStackFrame[] newStackFrames = _getStackFrames(dr);
  65
  66                         /*if (fStackFrames != null) {
  67                                 if (newStackFrames.length >= fStackFrames.length) {
  68                                         int delta = newStackFrames.length - fStackFrames.length + 1;
  69
  70                                         for (int i = fStackFrames.length - 1; i >= 0; i--) {
  71                                                 if (fStackFrames[i].equals(newStackFrames[newStackFrames.length - delta])) {
  72                                                         int b = 2; b++;
  73                                                         //((XDebugStackFrame) newStackFrames[newStackFrames.length - delta]).evaluateChange((XDebugStackFrame) fStackFrames[i]);
  74                                                 } else if (fStackFrames[i].isSameStackFrame(newStackFrames[newStackFrames.length - delta])) {
  75                                                         int b = 2; b++;
  76                                                         //((XDebugStackFrame) newStackFrames[newStackFrames.length - delta]).evaluateChange((XDebugStackFrame) fStackFrames[i]);
  77                                                 }
  78
  79                                                 delta ++;
  80                                         }
  81                                 } else {
  82                                         fStackFrames = newStackFrames;
  83                                 }
  84                         } else {
  85                                 fStackFrames = newStackFrames;
  86                         }*/
  87
  88                         fCurrentStepCount++;
  89
  90                         fStackFrames = newStackFrames;
  91                 }
  92
  93                 return fStackFrames;
  94         }
  95
  96
  97         private XDebugStackFrame[] _getStackFrames(XDebugResponse lastResponse) {
  98                 if (lastResponse.isError()) {
  99                         return new XDebugStackFrame[0];
 100                 }
 101
 102                 Node response = lastResponse.getParentNode();
 103                 NodeList frames = response.getChildNodes();
 104                 XDebugStackFrame[] theFrames = new XDebugStackFrame[frames.getLength()];
 105                 for (int i = 0; i < frames.getLength(); i++) {
 106                         Node stackNode = frames.item(i);
 107                         XDebugStackFrame frame = new XDebugStackFrame(this/*fThread*/, i);
 108                         String level =PHPDebugUtils.getAttributeValue(stackNode,"level");
 109                         if (!"".equals(level))
 110                                 frame.setLevel(Integer.parseInt(level));
 111
 112                         frame.setType(PHPDebugUtils.getAttributeValue(stackNode,"type"));
 113                         String fileName=PHPDebugUtils.unescapeString(PHPDebugUtils.getAttributeValue(stackNode,"filename"));
 114                         String lineNo=PHPDebugUtils.getAttributeValue(stackNode,"lineno");
 115
 116                         if (!"".equals(lineNo))
 117                                 frame.setLineNumber(Integer.parseInt(lineNo));
 118
 119                         frame.setWhere(PHPDebugUtils.getAttributeValue(stackNode,"where"));
 120
 121                         try {
 122                                 frame.setFullName(new URL(fileName));
 123                         } catch (MalformedURLException e) {
 124                                 e.printStackTrace();
 125                         }
 126
 127                         frame.incrementStepCounter();
 128
 129                         theFrames[i] = frame;
 130                 }
 131
 132                 return theFrames;
 133         }
 134
 135         /* (non-Javadoc)
 136          * @see org.eclipse.debug.core.model.IThread#hasStackFrames()
 137          */
 138         public boolean hasStackFrames() throws DebugException {
 139                 return isSuspended();
 140         }
 141
 142         /* (non-Javadoc)
 143          * @see org.eclipse.debug.core.model.IThread#getPriority()
 144          */
 145         public int getPriority() throws DebugException {
 146                 return 0;
 147         }
 148
 149         /* (non-Javadoc)
 150          * @see org.eclipse.debug.core.model.IThread#getTopStackFrame()
 151          */
 152         public IStackFrame getTopStackFrame() throws DebugException {
 153                 IStackFrame[] frames = getStackFrames();
 154                 if (frames.length > 0) {
 155                         return frames[0];
 156                 }
 157
 158                 return null;
 159         }
 160
 161         /* (non-Javadoc)
 162          * @see org.eclipse.debug.core.model.IThread#getName()
 163          */
 164         public String getName() throws DebugException {
 165                 return "Thread[1]";
 166         }
 167
 168         /* (non-Javadoc)
 169          * @see org.eclipse.debug.core.model.IThread#getBreakpoints()
 170          */
 171         public IBreakpoint[] getBreakpoints() {
 172                 if (fBreakpoints == null) {
 173                         return new IBreakpoint[0];
 174                 }
 175                 return fBreakpoints;
 176         }
 177
 178         /**
 179          * Sets the breakpoints this thread is suspended at, or <code>null</code>
 180          * if none.
 181          *
 182          * @param breakpoints the breakpoints this thread is suspended at, or <code>null</code>
 183          * if none
 184          */
 185         protected void setBreakpoints(IBreakpoint[] breakpoints) {
 186                 fBreakpoints = breakpoints;
 187         }
 188
 189         /* (non-Javadoc)
 190          * @see org.eclipse.debug.core.model.ISuspendResume#canResume()
 191          */
 192         public boolean canResume() {
 193                 return isSuspended();
 194         }
 195
 196         /* (non-Javadoc)
 197          * @see org.eclipse.debug.core.model.ISuspendResume#canSuspend()
 198          */
 199         public boolean canSuspend() {
 200                 return !isTerminated() && !isSuspended();
 201         }
 202
 203         /* (non-Javadoc)
 204          * @see org.eclipse.debug.core.model.ISuspendResume#isSuspended()
 205          */
 206         public boolean isSuspended() {
 207 //              return fTarget.isSuspended();
 208                 return getDebugTarget().isSuspended();
 209         }
 210
 211         /* (non-Javadoc)
 212          * @see org.eclipse.debug.core.model.ISuspendResume#resume()
 213          */
 214         public void resume() throws DebugException {
 215                 fBreakpoints=null;
 216                 getDebugTarget().resume();
 217         }
 218
 219         /* (non-Javadoc)
 220          * @see org.eclipse.debug.core.model.ISuspendResume#suspend()
 221          */
 222         public void suspend() throws DebugException {
 223                 getDebugTarget().suspend();
 224         }
 225
 226         /* (non-Javadoc)
 227          * @see org.eclipse.debug.core.model.IStep#canStepInto()
 228          */
 229         public boolean canStepInto() {
 230                 return isSuspended();
 231         }
 232
 233         /* (non-Javadoc)
 234          * @see org.eclipse.debug.core.model.IStep#canStepOver()
 235          */
 236         public boolean canStepOver() {
 237                 return isSuspended();
 238         }
 239
 240         /* (non-Javadoc)
 241          * @see org.eclipse.debug.core.model.IStep#canStepReturn()
 242          */
 243         public boolean canStepReturn() {
 244                 if (fStackFrames != null) {
 245                         return (fStackFrames.length > 1);
 246                 } else {
 247                         return false;
 248                 }
 249         }
 250
 251         /* (non-Javadoc)
 252          * @see org.eclipse.debug.core.model.IStep#isStepping()
 253          */
 254         public boolean isStepping() {
 255                 return fStepping;
 256         }
 257
 258         /* (non-Javadoc)
 259          * @see org.eclipse.debug.core.model.IStep#stepInto()
 260          */
 261         public void stepInto() throws DebugException {
 262                 fBreakpoints=null;
 263                 ((XDebugTarget) getDebugTarget()).step_into();
 264         }
 265
 266         /* (non-Javadoc)
 267          * @see org.eclipse.debug.core.model.IStep#stepOver()
 268          */
 269         public void stepOver() throws DebugException {
 270                 fBreakpoints=null;
 271                 ((XDebugTarget) getDebugTarget()).step_over();
 272         }
 273
 274         /* (non-Javadoc)
 275          * @see org.eclipse.debug.core.model.IStep#stepReturn()
 276          */
 277         public void stepReturn() throws DebugException {
 278                 fBreakpoints=null;
 279                 ((XDebugTarget) getDebugTarget()).step_out();
 280         }
 281
 282         /* (non-Javadoc)
 283          * @see org.eclipse.debug.core.model.ITerminate#canTerminate()
 284          */
 285         public boolean canTerminate() {
 286                 return !isTerminated();
 287         }
 288
 289         /* (non-Javadoc)
 290          * @see org.eclipse.debug.core.model.ITerminate#isTerminated()
 291          */
 292         public boolean isTerminated() {
 293                 return fTerminated;
 294         }
 295
 296         /* (non-Javadoc)
 297          * @see org.eclipse.debug.core.model.ITerminate#terminate()
 298          */
 299         public void terminate() throws DebugException {
 300                 ((XDebugTarget) getDebugTarget()).getDebugConnection().stop();
 301                 fTerminated = true;
 302         }
 303
 304         public void terminated() throws DebugException {
 305                 fTerminated = true;
 306         }
 307
 308         /**
 309          * Sets whether this thread is stepping
 310          *
 311          * @param stepping whether stepping
 312          */
 313         protected void setStepping(boolean stepping) {
 314                 fStepping = stepping;
 315         }
 316
 317         public void handleDebugEvents(DebugEvent[] events) {
 318                 DebugEvent de = events[0];
 319                 System.out.println(de.toString());
 320         }
 321
 322         public void removeEventListeners() {
 323                 DebugPlugin.getDefault().removeDebugEventListener(this);
 324         }
 325
 326         /**
 327          * Fires a <code>RESUME</code> event for this element with
 328          * the given detail.
 329          *
 330          * @param detail event detail code
 331          */
 332         public void fireResumeEvent(int detail) {
 333                 fireEvent(new DebugEvent(this, DebugEvent.RESUME, detail));
 334         }
 335
 336         /**
 337          * Fires a <code>SUSPEND</code> event for this element with
 338          * the given detail.
 339          *
 340          * @param detail event detail code
 341          */
 342         public void fireSuspendEvent(int detail) {
 343                 fireEvent(new DebugEvent(this, DebugEvent.SUSPEND, detail));
 344         }
 345
 346         /**
 347          * Fires a <code>TERMINATE</code> event for this element.
 348          */
 349         protected void fireTerminateEvent() {
 350                 fireEvent(new DebugEvent(this, DebugEvent.TERMINATE));
 351         }
 352 }