net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/actions/ExternalPHPParser.java

   1 package net.sourceforge.phpdt.externaltools.actions;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.text.MessageFormat;
   6 import java.util.Hashtable;
   7
   8 import net.sourceforge.phpdt.externaltools.util.StringUtil;
   9 import net.sourceforge.phpeclipse.externaltools.ExternalToolsPlugin;
  10 import net.sourceforge.phpeclipse.externaltools.PHPConsole;
  11
  12 import org.eclipse.core.resources.IFile;
  13 import org.eclipse.core.resources.IMarker;
  14 import org.eclipse.core.runtime.CoreException;
  15 import org.eclipse.jface.dialogs.MessageDialog;
  16 import org.eclipse.jface.preference.IPreferenceStore;
  17 import org.eclipse.ui.texteditor.MarkerUtilities;
  18
  19 /**
  20  * Calls the external parser and generates problem markers if necessary
  21  */
  22 public class ExternalPHPParser {
  23         private final static String PROBLEM_ID = "net.sourceforge.phpeclipse.problem";
  24
  25         // strings for external parser call
  26         private static final String PARSE_ERROR_STRING = "Parse error"; //$NON-NLS-1$
  27
  28         private static final String PARSE_WARNING_STRING = "Warning"; //$NON-NLS-1$
  29
  30         public static final int ERROR = 2;
  31
  32         public static final int WARNING = 1;
  33
  34         public static final int INFO = 0;
  35
  36         public static final int TASK = 3;
  37
  38         // TODO design error? Analyze why fileToParse must be static ???
  39         final protected IFile fFileToParse;
  40
  41         public ExternalPHPParser(IFile file) {
  42                 fFileToParse = file;
  43         }
  44
  45         /**
  46          * Call the php parse command ( php -l -f &lt;filename&gt; ) and create
  47          * markers according to the external parser output.
  48          *
  49          * @param file
  50          *            the file that will be parsed
  51          */
  52         public void phpExternalParse() {
  53                 // IFile file = (IFile) resource;
  54                 // final IPath path = file.getFullPath();
  55                 final IPreferenceStore store = ExternalToolsPlugin.getDefault()
  56                                 .getPreferenceStore();
  57                 final String filename = fFileToParse.getLocation().toString();
  58
  59                 final String[] arguments = { filename };
  60                 final MessageFormat form = new MessageFormat(store
  61                                 .getString(ExternalToolsPlugin.EXTERNAL_PARSER_PREF));
  62                 final String command = form.format(arguments);
  63
  64                 final String parserResult = getParserOutput(command,
  65                                 "External parser: ");
  66
  67                 try {
  68                         // parse the buffer to find the errors and warnings
  69                         createMarkers(parserResult, fFileToParse);
  70                 } catch (CoreException e) {
  71                 }
  72         }
  73
  74         /**
  75          * Create markers according to the external parser output.
  76          *
  77          * @param output
  78          *            the external parser output
  79          * @param file
  80          *            the file that was parsed.
  81          */
  82         protected void createMarkers(final String output, final IFile file)
  83                         throws CoreException {
  84                 // delete all markers
  85                 file.deleteMarkers(PROBLEM_ID, false, 0);
  86
  87                 int indx = 0;
  88                 int brIndx;
  89                 boolean flag = true;
  90                 while ((brIndx = output.indexOf("<br />", indx)) != -1) {
  91                         // newer php error output (tested with 4.2.3)
  92                         scanLine(output, file, indx, brIndx);
  93                         indx = brIndx + 6;
  94                         flag = false;
  95                 }
  96                 if (flag) {
  97                         while ((brIndx = output.indexOf("<br>", indx)) != -1) {
  98                                 // older php error output (tested with 4.2.3)
  99                                 scanLine(output, file, indx, brIndx);
 100                                 indx = brIndx + 4;
 101                         }
 102                 }
 103         }
 104
 105         private void scanLine(final String output, final IFile file,
 106                         final int indx, final int brIndx) throws CoreException {
 107                 String current;
 108                 // String outLineNumberString; never used
 109                 final StringBuffer lineNumberBuffer = new StringBuffer(10);
 110                 char ch;
 111                 current = output.substring(indx, brIndx);
 112
 113                 if (current.indexOf(PARSE_WARNING_STRING) != -1
 114                                 || current.indexOf(PARSE_ERROR_STRING) != -1) {
 115                         final int onLine = current.indexOf("on line <b>");
 116                         if (onLine != -1) {
 117                                 lineNumberBuffer.delete(0, lineNumberBuffer.length());
 118                                 for (int i = onLine; i < current.length(); i++) {
 119                                         ch = current.charAt(i);
 120                                         if ('0' <= ch && '9' >= ch) {
 121                                                 lineNumberBuffer.append(ch);
 122                                         }
 123                                 }
 124
 125                                 final int lineNumber = Integer.parseInt(lineNumberBuffer
 126                                                 .toString());
 127
 128                                 final Hashtable attributes = new Hashtable();
 129
 130                                 current = StringUtil.replaceAll(current, "\n", "");
 131                                 current = StringUtil.replaceAll(current, "<b>", "");
 132                                 current = StringUtil.replaceAll(current, "</b>", "");
 133                                 MarkerUtilities.setMessage(attributes, current);
 134
 135                                 if (current.indexOf(PARSE_ERROR_STRING) != -1)
 136                                         attributes.put(IMarker.SEVERITY, new Integer(
 137                                                         IMarker.SEVERITY_ERROR));
 138                                 else if (current.indexOf(PARSE_WARNING_STRING) != -1)
 139                                         attributes.put(IMarker.SEVERITY, new Integer(
 140                                                         IMarker.SEVERITY_WARNING));
 141                                 else
 142                                         attributes.put(IMarker.SEVERITY, new Integer(
 143                                                         IMarker.SEVERITY_INFO));
 144                                 MarkerUtilities.setLineNumber(attributes, lineNumber);
 145                                 MarkerUtilities.createMarker(file, attributes, PROBLEM_ID);
 146                         }
 147                 }
 148         }
 149
 150         /**
 151          * This will set a marker.
 152          *
 153          * @param file
 154          *            the file that generated the marker
 155          * @param message
 156          *            the message
 157          * @param charStart
 158          *            the starting character
 159          * @param charEnd
 160          *            the end character
 161          * @param errorLevel
 162          *            the error level ({@link ExternalPHPParser#ERROR},{@link ExternalPHPParser#INFO},{@link ExternalPHPParser#WARNING}),
 163          *            {@link ExternalPHPParser#TASK})
 164          * @throws CoreException
 165          *             an exception throwed by the MarkerUtilities
 166          */
 167         private void setMarker(final IFile file, final String message,
 168                         final int charStart, final int charEnd, final int errorLevel)
 169                         throws CoreException {
 170                 if (file != null) {
 171                         final Hashtable attributes = new Hashtable();
 172                         MarkerUtilities.setMessage(attributes, message);
 173                         switch (errorLevel) {
 174                         case ERROR:
 175                                 attributes.put(IMarker.SEVERITY, new Integer(
 176                                                 IMarker.SEVERITY_ERROR));
 177                                 break;
 178                         case WARNING:
 179                                 attributes.put(IMarker.SEVERITY, new Integer(
 180                                                 IMarker.SEVERITY_WARNING));
 181                                 break;
 182                         case INFO:
 183                                 attributes.put(IMarker.SEVERITY, new Integer(
 184                                                 IMarker.SEVERITY_INFO));
 185                                 break;
 186                         case TASK:
 187                                 attributes.put(IMarker.SEVERITY, new Integer(IMarker.TASK));
 188                                 break;
 189                         }
 190                         MarkerUtilities.setCharStart(attributes, charStart);
 191                         MarkerUtilities.setCharEnd(attributes, charEnd);
 192                         MarkerUtilities.createMarker(file, attributes, PROBLEM_ID);
 193                 }
 194         }
 195
 196         /**
 197          * This will set a marker.
 198          *
 199          * @param file
 200          *            the file that generated the marker
 201          * @param message
 202          *            the message
 203          * @param line
 204          *            the line number
 205          * @param errorLevel
 206          *            the error level ({@link ExternalPHPParser#ERROR},{@link ExternalPHPParser#INFO},{@link ExternalPHPParser#WARNING})
 207          * @throws CoreException
 208          *             an exception throwed by the MarkerUtilities
 209          */
 210         private void setMarker(final IFile file, final String message,
 211                         final int line, final int errorLevel, final String location)
 212                         throws CoreException {
 213                 if (file != null) {
 214                         String markerKind = PROBLEM_ID;
 215                         final Hashtable attributes = new Hashtable();
 216                         MarkerUtilities.setMessage(attributes, message);
 217                         switch (errorLevel) {
 218                         case ERROR:
 219                                 attributes.put(IMarker.SEVERITY, new Integer(
 220                                                 IMarker.SEVERITY_ERROR));
 221                                 break;
 222                         case WARNING:
 223                                 attributes.put(IMarker.SEVERITY, new Integer(
 224                                                 IMarker.SEVERITY_WARNING));
 225                                 break;
 226                         case INFO:
 227                                 attributes.put(IMarker.SEVERITY, new Integer(
 228                                                 IMarker.SEVERITY_INFO));
 229                                 break;
 230                         case TASK:
 231                                 attributes.put(IMarker.SEVERITY, new Integer(
 232                                                 IMarker.SEVERITY_INFO));
 233                                 markerKind = IMarker.TASK;
 234                                 break;
 235                         }
 236                         attributes.put(IMarker.LOCATION, location);
 237                         MarkerUtilities.setLineNumber(attributes, line);
 238                         MarkerUtilities.createMarker(file, attributes, markerKind);
 239                 }
 240         }
 241
 242         /**
 243          * This will set a marker.
 244          *
 245          * @param message
 246          *            the message
 247          * @param charStart
 248          *            the starting character
 249          * @param charEnd
 250          *            the end character
 251          * @param errorLevel
 252          *            the error level ({@link ExternalPHPParser#ERROR},{@link ExternalPHPParser#INFO},{@link ExternalPHPParser#WARNING})
 253          * @throws CoreException
 254          *             an exception throwed by the MarkerUtilities
 255          */
 256         private void setMarker(final String message, final int charStart,
 257                         final int charEnd, final int errorLevel, final String location)
 258                         throws CoreException {
 259                 if (fFileToParse != null) {
 260                         setMarker(fFileToParse, message, charStart, charEnd, errorLevel,
 261                                         location);
 262                 }
 263         }
 264
 265         /**
 266          * This will set a marker.
 267          *
 268          * @param file
 269          *            the file that generated the marker
 270          * @param message
 271          *            the message
 272          * @param charStart
 273          *            the starting character
 274          * @param charEnd
 275          *            the end character
 276          * @param errorLevel
 277          *            the error level ({@link ExternalPHPParser#ERROR},{@link ExternalPHPParser#INFO},{@link ExternalPHPParser#WARNING})
 278          * @param location
 279          *            the location of the error
 280          * @throws CoreException
 281          *             an exception throwed by the MarkerUtilities
 282          */
 283         private void setMarker(final IFile file, final String message,
 284                         final int charStart, final int charEnd, final int errorLevel,
 285                         final String location) throws CoreException {
 286                 if (file != null) {
 287                         final Hashtable attributes = new Hashtable();
 288                         MarkerUtilities.setMessage(attributes, message);
 289                         switch (errorLevel) {
 290                         case ERROR:
 291                                 attributes.put(IMarker.SEVERITY, new Integer(
 292                                                 IMarker.SEVERITY_ERROR));
 293                                 break;
 294                         case WARNING:
 295                                 attributes.put(IMarker.SEVERITY, new Integer(
 296                                                 IMarker.SEVERITY_WARNING));
 297                                 break;
 298                         case INFO:
 299                                 attributes.put(IMarker.SEVERITY, new Integer(
 300                                                 IMarker.SEVERITY_INFO));
 301                                 break;
 302                         case TASK:
 303                                 attributes.put(IMarker.SEVERITY, new Integer(IMarker.TASK));
 304                                 break;
 305                         }
 306                         attributes.put(IMarker.LOCATION, location);
 307                         MarkerUtilities.setCharStart(attributes, charStart);
 308                         MarkerUtilities.setCharEnd(attributes, charEnd);
 309                         MarkerUtilities.createMarker(file, attributes, PROBLEM_ID); // IMarker.PROBLEM);
 310                 }
 311         }
 312
 313         private String getParserOutput(String command, String consoleMessage) {
 314                 try {
 315                         PHPConsole console = new PHPConsole();
 316                         try {
 317                                 console.println(consoleMessage + command);
 318                         } catch (Throwable th) {
 319
 320                         }
 321
 322                         Runtime runtime = Runtime.getRuntime();
 323
 324                         // runs the command
 325                         Process p = runtime.exec(command);
 326
 327                         // gets the input stream to have the post-compile-time information
 328                         InputStream stream = p.getInputStream();
 329
 330                         // get the string from Stream
 331                         String consoleOutput = PHPConsole.getStringFromStream(stream);
 332
 333                         // prints out the information
 334                         if (console != null) {
 335                                 console.print(consoleOutput);
 336                         }
 337                         return consoleOutput;
 338
 339                 } catch (IOException e) {
 340                         MessageDialog
 341                                         .openInformation(null, "IOException: ", e.getMessage());
 342                 }
 343                 return "";
 344         }
 345 }