Examples of org.eclipse.core.resources.IStorage

org.eclipse.core.resources.IStorage
A storage object represents a set of bytes which can be accessed. These may be in the form of an IFile or IFileState or any other object supplied by user code. The main role of an IStorage is to provide a uniform API for access to, and presentation of, its content.
Storage objects implement the IAdaptable interface; extensions are managed by the platform's adapter manager.
Clients may implement this interface.

   */
  protected void updateCache(IStorageEditorInput input) throws CoreException {
    StorageInfo info= (StorageInfo) getElementInfo(input);
    if (info != null) {
      try {
        IStorage storage= input.getStorage();
        if (storage != null) {
          boolean readOnly= storage.isReadOnly();
          info.fIsReadOnly=  readOnly;
          info.fIsModifiable= !readOnly;
        }
      } catch (CoreException x) {
        handleCoreException(x, TextEditorMessages.StorageDocumentProvider_updateCache);

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   * @see org.eclipse.ui.texteditor.IDocumentProviderExtension4#getContentType(java.lang.Object)
   * @since 3.1
   */
  public IContentType getContentType(Object element) throws CoreException {
    if (element instanceof IStorageEditorInput) {
      IStorage storage= ((IStorageEditorInput) element).getStorage();
      Reader reader= null;
      InputStream stream= null;
      try {
        IContentDescription desc;
        IDocument document= getDocument(element);
        if (document != null) {
          reader= new DocumentReader(document);
          desc= Platform.getContentTypeManager().getDescriptionFor(reader, storage.getName(), NO_PROPERTIES);
        } else {
          stream= storage.getContents();
          desc= Platform.getContentTypeManager().getDescriptionFor(stream, storage.getName(), NO_PROPERTIES);
        }
        if (desc != null && desc.getContentType() != null)
          return desc.getContentType();
      } catch (IOException x) {
        IPath path= storage.getFullPath();
        String name;
        if (path != null)
          name= path.toOSString();
        else
          name= storage.getName();
        String message;
        if (name != null)
          message= NLSUtility.format(TextEditorMessages.StorageDocumentProvider_getContentDescriptionFor, name);
        else
          message= TextEditorMessages.StorageDocumentProvider_getContentDescription;

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   * @return the persisted encoding
   * @since 2.1
   */
  protected String getPersistedEncoding(Object element) {
    if (element instanceof IStorageEditorInput) {
      IStorage storage;
      try {
        storage= ((IStorageEditorInput)element).getStorage();
        if (storage instanceof IEncodedStorage)
          return ((IEncodedStorage)storage).getCharset();
      } catch (CoreException e) {

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              if (varName.equals(vars[i].getName())) {
                // ok we found.
                if (vars[i].getMode() == IVariableInfo.RESOURCEBUNDLE) {
                  String resourceName = vars[i]
                      .getTypeInfoString();
                  IStorage s = null;
                  try {
                    s = LoadBundleUtil
                        .getLoadBundleResource(_prj,
                            resourceName);
                  } catch (CoreException ex) {
                    // "Error"
                    _log
                        .info(
                            "PageExpressionContext.Info.0", ex); //$NON-NLS-1$
                  }
                  if (s == null) {
                    throw new ELException();
                  }
                  InputStream input = null;
                  try {
                    input = new BufferedInputStream(s
                        .getContents());
                    Properties p = new Properties();
                    p.load(input);
                    return p;
                  } catch (CoreException e) {

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    //Bug 306811 - Invalid error "messages not found in classpath for project"
    private ISymbol createSymbolForResourceBundleInJAR(IProject project, final String name, final String basename) {
      IComponentSymbol symbol = null;
      InputStream in = null;
      try {
        final IStorage storage = LoadBundleUtil.getLoadBundleResource(project, basename);
        if (storage != null) {
          in = storage.getContents();
          Properties props = new Properties();
          props.load(in);
          final IMapTypeDescriptor typeDesc = SymbolFactory.eINSTANCE.createIMapTypeDescriptor();
          typeDesc.setMapSource(props);
          symbol = SymbolFactory.eINSTANCE.createIComponentSymbol();

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        location = path.toString();
      }
    }
    if (location == null) {
      try {
        IStorage storage = input.getStorage();
        if (storage != null) {
          IPath storagePath = storage.getFullPath();
          String name = storage.getName();
          if (storagePath != null) {
            /*
             * If the path's last segment and the name are
             * different, the IStorage contract is not being
             * honored

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        path = ipath.toString();
      }
    }
    if (path == null) {
      try {
        IStorage storage = input.getStorage();
        if (storage != null) {
          IPath storagePath = storage.getFullPath();
          String name = storage.getName();
          if (storagePath != null) {
            // If they are different, the IStorage contract is not
            // being honored
            // (https://bugs.eclipse.org/bugs/show_bug.cgi?id=73098).
            // Favor the name.

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   * @see org.eclipse.ui.editors.text.StorageDocumentProvider#getPersistedEncoding(java.lang.Object)
   */
  protected String getPersistedEncoding(Object element) {
    String charset = super.getPersistedEncoding(element);
    if (charset == null && element instanceof IStorageEditorInput) {
      IStorage storage;
      try {
        storage = ((IStorageEditorInput) element).getStorage();
        if (storage != null && !(storage instanceof IEncodedStorage)) {
          InputStream contents = null;
          try {
            contents = storage.getContents();
            if (contents != null) {
              QualifiedName[] detectionOptions = new QualifiedName[]{IContentDescription.BYTE_ORDER_MARK, IContentDescription.CHARSET};
              IContentDescription description = Platform.getContentTypeManager().getDescriptionFor(contents, storage.getName(), detectionOptions);
              if (description != null) {
                charset = description.getCharset();
              }
            }

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  public boolean isValidValue( String value )
  {
    try
    {
      IProject project = getProject();
      IStorage bundle = LoadBundleUtil.getLoadBundleResource( project , value );
      if( bundle != null )
      {
        return true;
      }
    }

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  public static IStorage getLoadBundleResource(final IProject project,
      final String baseName) throws CoreException {
    if (project == null || baseName == null) {
      return null;
    }
    IStorage loadBundleResource = null;
    if (project.hasNature(JavaCore.NATURE_ID)) {
      IJavaProject javaProject = JavaCore.create(project);
      IFile sourceFile = getSourceFile(javaProject, baseName);
      if (sourceFile == null || !sourceFile.exists()) {
        loadBundleResource = getJarFile(javaProject, baseName);

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