Examples of org.eclipse.jdt.core.IBuffer

org.eclipse.jdt.core.IBuffer
A buffer contains the text contents of a resource. It is not language-specific. The contents may be in the process of being edited, differing from the actual contents of the underlying resource. A buffer has an owner, which is an IOpenable. If a buffer does not have an underlying resource, saving the buffer has no effect. Buffers can be read-only.
Note that java model operations that manipulate an IBuffer (for example, IType.createMethod(...)) ensures that the same line delimiter (either "\n" or "\r" or "\r\n") is used across the whole buffer. Thus these operations may change the line delimiter(s) included in the string to be append, or replaced. However implementers of this interface should be aware that other clients of IBuffer might not do such transformations beforehand.
This interface may be implemented by clients.

    return this.classFile.getBuffer();
}


public char[] getContents() {
  try {
    IBuffer buffer = getBuffer();
    if (buffer == null) return CharOperation.NO_CHAR;
    char[] characters = buffer.getCharacters();
    if (characters == null) return CharOperation.NO_CHAR;
    return characters;
  } catch (JavaModelException e) {
    return CharOperation.NO_CHAR;
  }

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 * @see Openable#openBuffer(IProgressMonitor, Object)
 */
protected IBuffer openBuffer(IProgressMonitor pm, Object info) throws JavaModelException {


  // create buffer
  IBuffer buffer = this.owner.createBuffer(this);
  if (buffer == null) return null;


  // set the buffer source
  if (buffer.getCharacters() == null) {
    IBuffer classFileBuffer = this.classFile.getBuffer();
    if (classFileBuffer != null) {
      buffer.setContents(classFileBuffer.getCharacters());
    } else {
      // Disassemble
      IClassFileReader reader = ToolFactory.createDefaultClassFileReader(this.classFile, IClassFileReader.ALL);
      Disassembler disassembler = new Disassembler();
      String contents = disassembler.disassemble(reader, Util.getLineSeparator("", getJavaProject()), ClassFileBytesDisassembler.WORKING_COPY); //$NON-NLS-1$

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  private void setContents(ICompilationUnit cu) {
    if (cu == null)
      return;
    
    synchronized (cu) {
      IBuffer buffer;
      try {
        
        buffer = cu.getBuffer();
      }
      catch (JavaModelException e) {
        e.printStackTrace();
        buffer = null;
      }
  
      if (buffer != null)
        buffer.setContents(getJavaText());
    }
  }

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  private void setContents(ICompilationUnit cu) {
    if (cu == null)
      return;
    
    synchronized (cu) {
      IBuffer buffer;
      try {
        
        buffer = cu.getBuffer();
      }
      catch (JavaModelException e) {
        e.printStackTrace();
        buffer = null;
      }
  
      if (buffer != null)
        buffer.setContents(getJavaText());
    }
  }

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    installModificationListener();
  }  
  
  private CompilationUnit internalSetInput(IOpenable input) throws CoreException {
    IBuffer buffer = input.getBuffer();
    if (buffer == null) {
      JavaPlugin.logErrorMessage("Input has no buffer"); //$NON-NLS-1$
    }
    if (input instanceof ICompilationUnit) {
      fParser.setSource((ICompilationUnit) input);
    } else {
      fParser.setSource((IClassFile) input);
    }


    try {
      CompilationUnit root = (CompilationUnit) fParser.createAST(null);
      log("Recomputed the AST for " + buffer.getUnderlyingResource().getName());
              
      if (root == null) {
        JavaPlugin.logErrorMessage("Could not create AST"); //$NON-NLS-1$
      }

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      }
      IMethod suiteMethod = suiteType.getMethod("suite", new String[] {}); //$NON-NLS-1$
      if (suiteMethod.exists()) {
        try {
          ISourceRange range = suiteMethod.getSourceRange();
          IBuffer buf = cu.getBuffer();
          String originalContent = buf.getText(range.getOffset(),
              range.getLength());
          if (UpdateTestSuite4
              .getTestSuiteClassListRange(originalContent) == null) {
            cannotUpdateSuiteError();
            return false;

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//            String clazz = String.valueOf(object);
//            System.out.println(clazz);
//          }
//        }
        ISourceRange range = fTestSuite.getSourceRange();
        IBuffer buf = fTestSuite.getBuffer();
        String originalContent = buf.getText(range.getOffset(), range
            .getLength());
        buf.close();
        if (getTestSuiteClassListRange(originalContent) != null) {
          CheckedTableSelectionDialog dialog = new CheckedTableSelectionDialog(
              fShell, lprovider, cprovider);
          dialog.setValidator(new UpdateAllTestsValidator());
          dialog.setTitle(WizardMessages.UpdateAllTests_title);

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            .formatCompilationUnit(fTestSuite.getJavaProject(),
                fullSource.get(), fTestSuite
                    .findRecommendedLineSeparator());
        // buf.replace(range.getOffset(), range.getLength(),
        // formattedContent);
        IBuffer buf = fTestSuite.getBuffer();
        buf.replace(0, buf.getLength(), formattedContent);
        monitor.worked(1);
        fTestSuite.save(new SubProgressMonitor(monitor, 1), true);
        monitor.worked(1);
      }
    } catch (JavaModelException e) {

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  public static void setContentsToCU(ICompilationUnit unit, String value){
    if (unit == null)
      return;


    synchronized (unit) {
      IBuffer buffer;
      try {


        buffer = unit.getBuffer();
      }
      catch (JavaModelException e) {
        e.printStackTrace();
        buffer = null;
      }


      if (buffer != null)
        buffer.setContents(value);
    }
  }

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  public static void setContentsToCU(ICompilationUnit unit, String value){
    if (unit == null)
      return;


    synchronized (unit) {
      IBuffer buffer;
      try {


        buffer = unit.getBuffer();
      }
      catch (JavaModelException e) {
        e.printStackTrace();
        buffer = null;
      }


      if (buffer != null)
        buffer.setContents(value);
    }
  }

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