Examples of org.eclipse.jdt.core.IPackageFragmentRoot

org.eclipse.jdt.core.IPackageFragmentRoot
A package fragment root contains a set of package fragments. It corresponds to an underlying resource which is either a folder, JAR, or zip. In the case of a folder, all descendant folders represent package fragments. For a given child folder representing a package fragment, the corresponding package name is composed of the folder names between the folder for this root and the child folder representing the package, separated by '.'. In the case of a JAR or zip, the contents of the archive dictates the set of package fragments in an analogous manner. Package fragment roots need to be opened before they can be navigated or manipulated. The children are of type IPackageFragment, and are in no particular order. @noimplement This interface is not intended to be implemented by clients.

        IJavaProject project = javaProjects[i];
        traceBuffer.append("  -> Compute SourceContainers for " + project.getProject().getName() + " :\n");


        IPackageFragmentRoot[] roots = project.getPackageFragmentRoots();
        for (int ri = 0; ri < roots.length; ri++) {
          IPackageFragmentRoot root = roots[ri];          
          if (root.isExternal()) {
            IPath location = root.getPath();
            if (external.contains(location)) {
              continue;
            }
            external.add(location);
          }
          sourceContainers.add(new PackageFragmentRootSourceContainer(root));
          traceBuffer.append("     RootSourceContainer created for : " + root.getPath().toPortableString() + "\n");
        }
      }      
    }
    
    // Last add DefaultSourceContainer, classes in jar files added to classpath will be visible

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      }
    } else {
      status.setWarning("The use of the default package is discouraged.");
    }


    IPackageFragmentRoot root = getPackageFragmentRoot();
    if (root != null) {
      if (root.getJavaProject().exists() && packName.length() > 0) {
        try {
          IPath rootPath = root.getPath();
          IPath outputPath = root.getJavaProject().getOutputLocation();
          if (rootPath.isPrefixOf(outputPath) && !rootPath.equals(outputPath)) {
            // if the bin folder is inside of our root, don't allow
            // to name a package
            // like the bin folder
            IPath packagePath = rootPath.append(packName.replace('.', '/'));
            if (outputPath.isPrefixOf(packagePath)) {
              status.setError("Package clashes with project output folder.");
              return status;
            }
          }
        } catch (JavaModelException e) {
          JavaPlugin.log(e);
          // let pass
        }
      }


      fPackageFragment = root.getPackageFragment(packName);
    } else {
      status.setError(""); //$NON-NLS-1$
    }
    return status;
  }

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  /**
   * @return Package selected by the user in a separate dialog
   */
  protected IPackageFragment choosePackage() {
    IPackageFragmentRoot froot = getPackageFragmentRoot();
    IJavaElement[] packages = null;
    try {
      if (froot != null && froot.exists()) {
        packages = froot.getChildren();
      }
    } catch (JavaModelException e) {
      JavaPlugin.log(e);
    }
    if (packages == null) {

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    monitor.beginTask("Creating aspect...", 10);


    ICompilationUnit createdWorkingCopy = null;
    try {
      // Step 1: Process package fragment.
      IPackageFragmentRoot root = getPackageFragmentRoot();
      IPackageFragment pack = getPackageFragment();
      if (pack == null) {
        pack = root.getPackageFragment(""); //$NON-NLS-1$
      }
      if (!pack.exists()) {
        String packName = pack.getElementName();
        pack = root.createPackageFragment(packName, true, null);
      }
      monitor.worked(1);


      // Step 2: Create aspect if not already existent.
      boolean needsCommit = false;

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        LayoutUtil.setWidthHint(text, convertWidthInCharsToPixels(40));
    }


    protected IStatus updateTargetClass() {
        StatusInfo status = new StatusInfo();
        IPackageFragmentRoot root = getMainPage().getPackageFragmentRoot();
        fTargetClassDialogField.enableButton(root != null);


        fTargetClass = null;


        String targetClassName = getTargetClassName();
        if (targetClassName.length() == 0) {
            // accept the empty field (stands for java.lang.Object)
            return status;
        }
        IStatus val = JavaConventions.validateJavaTypeName(targetClassName);
        if (val.getSeverity() == IStatus.ERROR) {
            status.setError("Target class name is not valid.");
            return status;
        }
        if (root != null) {
            try {
                IType type = resolveClassName(root.getJavaProject(), targetClassName);
                if (type == null) {
                    status.setWarning("Target class does not exist in current project.");
                    return status;
                }
                fTargetClass = type;

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        }
        return status;
    }


    protected IType chooseTargetClass() {
        IPackageFragmentRoot root = getMainPage().getPackageFragmentRoot();
        if (root == null) { return null; }


        IJavaElement[] elements = new IJavaElement[] { root.getJavaProject() };
        IJavaSearchScope scope = SearchEngine.createJavaSearchScope(elements);


        SelectionDialog dialog;
    try {
      dialog = JavaUI.createTypeDialog(

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        source.append(" target");
    }


    protected IStatus updateTargetException() {
        StatusInfo status = new StatusInfo();
        IPackageFragmentRoot root = getMainPage().getPackageFragmentRoot();
        fTargetExceptionDialogField.enableButton(root != null);


        fTargetException = null;


        String targetClassName = getTargetExceptionName();
        if (targetClassName.length() == 0) {
            // accept the empty field (stands for java.lang.Object)
            return status;
        }
        IStatus val = JavaConventions.validateJavaTypeName(targetClassName);
        if (val.getSeverity() == IStatus.ERROR) {
            status.setError("Target exception name is not valid.");
            return status;
        }
        if (root != null) {
            try {
                IType type = resolveClassName(root.getJavaProject(), targetClassName);
                if (type == null) {
                    status.setWarning("Target exception does not exist in current project.");
                    return status;
                }
                // TODO Check if exception is subclass of Throwable

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        return status;


    }


    protected IType chooseTargetException() {
        IPackageFragmentRoot root = getMainPage().getPackageFragmentRoot();
        if (root == null) {
            return null;
        }


        IJavaElement[] elements = new IJavaElement[] { root.getJavaProject()};
        IJavaSearchScope scope = SearchEngine.createJavaSearchScope(elements);
        // TODO Filter for subclasses of Throwable
        
        SelectionDialog dialog;
    try {

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     */
    protected char[] findSource(IType type, IBinaryType info, IClassFile cf,
        BitSet decompilerFlags) {


        IPackageFragment pkgFrag = type.getPackageFragment();
        IPackageFragmentRoot root = (IPackageFragmentRoot) pkgFrag.getParent();
        String pkg = type.getPackageFragment().getElementName().replace(
            '.', '/');


        String classFile = new String(info.getFileName());
        int p = classFile.lastIndexOf('/');
        classFile = classFile.substring(p + 1);


        StringBuffer source = new StringBuffer();
        String location = null;
        String className = pkg + "/" + classFile;
        if (root.isArchive()) {
            location = getArchivePath(root);
            DecompiledClass decompiledClass = decompileFromArchive(
                source, location, className, decompilerFlags);
            classToDecompiled.put(cf, decompiledClass);
        } else {
            try {
                location = root.getUnderlyingResource().getLocation()
                    .toOSString()
                    + "/" + className;
                DecompiledClass decompiledClass = decompile(
                    source, location, decompilerFlags);
                classToDecompiled.put(cf, decompiledClass);

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        public void run() {
            if (editor == null) {
                return;
            }
            IPackageFragmentRoot root = editor.getPackageFragmentRoot(editor.getClassFile());
            try {
                IClasspathEntry entry = root.getRawClasspathEntry();
                IPath containerPath = null;
                IJavaProject javaProject = root.getJavaProject();
                if (entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER) {
                    containerPath = entry.getPath();
                    IClasspathContainer container = JavaCore
                        .getClasspathContainer(containerPath, javaProject);
                    if(!isSourceAttachmentPossible(containerPath, javaProject)){
                        editor.setSourceAttachmentPossible(false);
                        attachAction.setEnabled(false);
                        BytecodeOutlinePlugin
                            .error("Unable to configure source attachment:\n"
                                + "classpath entry '" + containerPath +
                                        "'\nis either read-only "
                                + "or source attachment is not supported...", null);
                        return;
                    }
                    entry = JavaModelUtil.findEntryInContainer(container, root
                        .getPath());
                }


                Shell shell = Display.getDefault().getActiveShell();
                IClasspathEntry cpe = BuildPathDialogAccess

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