Examples of org.eclipse.jdt.core.compiler.IProblem

org.eclipse.jdt.core.compiler.IProblem
Description of a Java problem, as detected by the compiler or some of the underlying technology reusing the compiler. A problem provides access to:
- its location (originating source file name, source position, line number),
- its message description and a predicate to check its severity (warning or error).
- its ID : a number identifying the very nature of this problem. All possible IDs are listed as constants on this interface.
Note: the compiler produces IProblems internally, which are turned into markers by the JavaBuilder so as to persist problem descriptions. This explains why there is no API allowing to reach IProblem detected when compiling. However, the Java problem markers carry equivalent information to IProblem, in particular their ID (attribute "id") is set to one of the IDs defined on this interface. @since 2.0 @noimplement This interface is not intended to be implemented by clients. @noextend This interface is not intended to be extended by clients.

    List problems = requestor.getProblems();
    boolean error = false;
    prob = new IProblem[problems.size()];
    int errorCount = 0, warningCount = 0, count = 0;
    for (Iterator it = problems.iterator(); it.hasNext();) {
      IProblem problem = (IProblem) it.next();
      // StringBuffer buffer = new StringBuffer();
      // buffer.append(problem.getMessage());
      // buffer.append(" | line: ");
      // buffer.append(problem.getSourceLineNumber());
      // String msg = buffer.toString();

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  public void display() {
    boolean error = false;
    int errorCount = 0, warningCount = 0, count = 0;
    for (int i = 0; i < prob.length; i++) {
      IProblem problem = prob[i];
      if (problem == null)
        continue;
      StringBuffer buffer = new StringBuffer();
      buffer.append(problem.getMessage());
      buffer.append(" | line: ");
      buffer.append(problem.getSourceLineNumber());
      String msg = buffer.toString();
      if (problem.isError()) {
        error = true;
        msg = "Error: " + msg;
        errorCount++;
      } else if (problem.isWarning()) {
        msg = "Warning: " + msg;
        warningCount++;
      }
      System.out.println(msg);
      prob[count++] = problem;

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      if (problems == null || problems.length == 0) {
        problems = new IProblem[prob.length];
      }
      // int errorCount = 0, warningCount = 0;
      for (int i = 0, k = 0; i < prob.length; i++) {
        IProblem problem = prob[i];
        if (problem == null) {
          System.out.println(i + " is null.");
          continue;
        }
        if (problem.getID() == IProblem.UnusedImport
            || problem.getID() == IProblem.MissingSerialVersion)
          continue;
        problems[k++] = problem;
        int a[] = calculateTabIndexAndLineNumber(problem);
        problemsList.add(new Problem(problem, a[0], a[1]));

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        }
        TreeLogger branch = logger.branch(TreeLogger.ERROR, "Errors in "
            + String.valueOf(result.getFileName()), null);
        IProblem[] errors = result.getErrors();
        for (int i = 0; i < errors.length; i++) {
          IProblem problem = errors[i];
          if (problemSet.contains(problem)) {
            continue;
          }


          problemSet.add(problem);


          // Strip the initial code from each error.
          //
          String msg = problem.toString();
          msg = msg.substring(msg.indexOf(' '));


          // Append 'file (line): msg' to the error message.
          //
          int line = problem.getSourceLineNumber();
          StringBuffer msgBuf = new StringBuffer();
          msgBuf.append("Line ");
          msgBuf.append(line);
          msgBuf.append(": ");
          msgBuf.append(msg);

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        String fn = String.valueOf(result.compilationUnit.getFileName());
        String msg = "Errors in '" + fn + "'";
        TreeLogger branch = getLogger().branch(TreeLogger.ERROR, msg, null);


        for (int i = 0; i < errors.length; i++) {
          IProblem error = errors[i];


          // Strip the initial code from each error.
          //
          msg = error.toString();
          msg = msg.substring(msg.indexOf(' '));


          if (error.getID() >= IProblem.InvalidUsageOfTypeParameters
              && error.getID() <= IProblem.InvalidUsageOfAnnotationDeclarations) {
            // this error involves 5.0 compliance, use a custom message
            msg = "GWT does not yet support the Java 5.0 language enhancements; only 1.4 compatible source may be used";
          }


          // Append 'Line #: msg' to the error message.
          //
          StringBuffer msgBuf = new StringBuffer();
          int line = error.getSourceLineNumber();
          if (line > 0) {
            msgBuf.append("Line ");
            msgBuf.append(line);
            msgBuf.append(": ");
          }

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                public void acceptResult(CompilationResult result) {
                    try {
                        if (result.hasProblems()) {
                            IProblem[] problems = result.getProblems();
                            for (int i = 0; i < problems.length; i++) {
                                IProblem problem = problems[i];
                                if (problem.isError()) {
                                    String name = 
                                        new String(problems[i].getOriginatingFileName());
                                    try {
                                        problemList.add(ErrorDispatcher.createJavacError
                                                (name, pageNodes, new StringBuilder(problem.getMessage()), 
                                                        problem.getSourceLineNumber(), ctxt));
                                    } catch (JasperException e) {
                                        log.error("Error visiting node", e);
                                    }
                                }
                            }

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        final ICompilerRequestor compilerRequestor = new ICompilerRequestor() {
            public void acceptResult( final CompilationResult pResult ) {
                if (pResult.hasProblems()) {
                    final IProblem[] iproblems = pResult.getProblems();
                    for (int i = 0; i < iproblems.length; i++) {
                        final IProblem iproblem = iproblems[i];
                        final CompilationProblem problem = new EclipseCompilationProblem(iproblem); 
                        if (problemHandler != null) {
                            problemHandler.handle(problem);
                        }
                        problems.add(problem);

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        problems = new IProblem[prob.length];
      }


      // int errorCount = 0, warningCount = 0;
      for (int i = 0, k = 0; i < prob.length; i++) {
        IProblem problem = prob[i];
        if (problem == null) {
          System.out.println(i + " is null.");
          continue;
        }
//        if (problem.getID() == IProblem.UnusedImport

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    compiler.compile(new ICompilationUnit[] { unit });
    // System.out.println(unit.getContents());
    List problems = requestor.getProblems();
    boolean error = false;
    for (Iterator it = problems.iterator(); it.hasNext();) {
      IProblem problem = (IProblem) it.next();
      StringBuffer buffer = new StringBuffer();
      buffer.append(problem.getMessage());
      buffer.append(" line: ");
      buffer.append(problem.getSourceLineNumber());
      String msg = buffer.toString();
      if (problem.isError()) {
        error = true;
        msg = "Error:\n" + msg + " " + problem.toString();
      } else if (problem.isWarning())
        msg = "Warning:\n" + msg;


      System.out.println(msg);
    }

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    List problems = requestor.getProblems();
    prob = new IProblem[problems.size()];
    int count = 0;
    for (Iterator it = problems.iterator(); it.hasNext();) {
      IProblem problem = (IProblem) it.next();
      prob[count++] = problem;
    }


  }

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