Examples of org.eclipse.core.runtime.content.IContentDescription

Package org.eclipse.core.runtime.content

Examples of org.eclipse.core.runtime.content.IContentDescription

org.eclipse.core.runtime.content.IContentDescription
A content description object contains information about the nature of arbitrary data.
A content description object will always include the content type for the examined contents, and may also include information on:
1. charset;
2. byte order mark;
3. other custom properties provided by third-party plug-ins.
Content describers provided by plug-ins will fill in most of the properties in a content description object, except for the content type, what is done by the platform. After a content description is filled in by a content interpreter, it is marked as immutable by the platform, so calling any of the mutator methods defined in this interface will cause an IllegalStateException to be thrown.

Default values for properties can be contributed by plug-ins as part of the content type definition markup.

This interface is not intended to be implemented by clients.
@see IContentDescriber @since 3.0

  private boolean isConsumerDescriptorFile(IResource resource) throws CoreException {
    
    boolean isConsumerDescritporFile = false;
    
    if (resource instanceof IFile) {
      IContentDescription contentDescription = ((IFile) resource).getContentDescription();
     
      if (contentDescription != null) {
        IContentType contentType = contentDescription.getContentType();
        
        isConsumerDescritporFile = 
                contentType != null && CONSUMER_DESCRIPTOR_ID.equals(contentType.getId());
      }
    }

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  private boolean isAnalysisEngineDescriptorFile(IResource resource) throws CoreException {
    
    boolean isAnalysisEngineDescriptorFile = false;
    
    if (resource instanceof IFile) {
      IContentDescription contentDescription = ((IFile) resource).getContentDescription();
      
      if (contentDescription != null) {
        IContentType contentType = contentDescription.getContentType();
        
        isAnalysisEngineDescriptorFile = 
                contentType != null && ANALYSIS_ENGINE_DESCRIPTOR_ID.equals(contentType.getId());


      }

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      }
      
      //fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=202613 kindly contributed by Eiji Morito. 
      IContentTypeManager contentTypeManager = Platform.getContentTypeManager();
      IContentType contentType = contentTypeManager.getContentType("org.eclipse.wst.html.core.htmlsource"); //$NON-NLS-1$
      IContentDescription contentDescription = contentType.getDescriptionFor(new StringReader(result.toString()), null);
      String charset = contentDescription.getCharset();
      
      if (charset == null || !Charset.isSupported(charset)) {
        charset = ResourcesPlugin.getEncoding();
        if (charset == null)
          charset = "UTF-8"; //$NON-NLS-1$

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   */
  private boolean isFragment(IFile file) {
    boolean isFragment = false;
    InputStream is = null;
    try {
      IContentDescription contentDescription = file.getContentDescription();
      // it can be null
      if (contentDescription == null) {
        is = file.getContents();
        contentDescription = Platform.getContentTypeManager().getDescriptionFor(is, file.getName(), new QualifiedName[]{IContentDescription.CHARSET});
      }
      if (contentDescription != null) {
        String fileCtId = contentDescription.getContentType().getId();
        isFragment = (fileCtId != null && ContentTypeIdForJSP.ContentTypeID_JSPFRAGMENT.equals(fileCtId));
      }
    }
    catch (IOException e) {
      // ignore, assume it's invalid JSP

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  private IContentDescription getContentDescription(Reader reader) {


    if (reader == null)
      return null;


    IContentDescription desc = null;
    try {


      IContentType contentTypeJSP = Platform.getContentTypeManager().getContentType(ContentTypeIdForJSP.ContentTypeID_JSP);
      desc = contentTypeJSP.getDescriptionFor(reader, IContentDescription.ALL);
    }

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    // note: this will currently only work for models backed by files
    EmbeddedTypeHandler embeddedContentType = null;
    IDOMModel domModel = (IDOMModel) model;


    if (embeddedContentType == null) {
      IContentDescription desc = getContentDescription(structuredDocument);
      if (desc != null) {
        Object prop = null;


        prop = desc.getProperty(IContentDescriptionForJSP.CONTENT_FAMILY_ATTRIBUTE);
        if (prop != null) {
          if (ContentTypeFamilyForHTML.HTML_FAMILY.equals(prop)) {
            embeddedContentType = EmbeddedTypeRegistryImpl.getInstance().getTypeFor("text/html");
          }
        }


        if (embeddedContentType == null) {


          prop = desc.getProperty(IContentDescriptionForJSP.CONTENT_TYPE_ATTRIBUTE);
          if (prop != null) {
            embeddedContentType = EmbeddedTypeRegistryImpl.getInstance().getTypeFor((String) prop);
          }
        }
      }

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   */
  private boolean isFragment(IFile file) {
    boolean isFragment = false;
    InputStream is = null;
    try {
      IContentDescription contentDescription = file.getContentDescription();
      // it can be null
      if (contentDescription == null) {
        is = file.getContents();
        contentDescription = Platform.getContentTypeManager().getDescriptionFor(is, file.getName(), new QualifiedName[]{IContentDescription.CHARSET});
      }
      if (contentDescription != null) {
        String fileCtId = contentDescription.getContentType().getId();
        isFragment = (fileCtId != null && ContentTypeIdForJSP.ContentTypeID_JSPFRAGMENT.equals(fileCtId));
      }
    }
    catch (IOException e) {
      // ignore, assume it's invalid JSP

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   */
  private boolean isFragment(IFile file) {
    boolean isFragment = false;
    InputStream is = null;
    try {
      IContentDescription contentDescription = file.getContentDescription();
      // it can be null
      if (contentDescription == null) {
        is = file.getContents();
        contentDescription = Platform.getContentTypeManager().getDescriptionFor(is, file.getName(), new QualifiedName[]{IContentDescription.CHARSET});
      }
      if (contentDescription != null) {
        String fileCtId = contentDescription.getContentType().getId();
        isFragment = (fileCtId != null && ContentTypeIdForJSP.ContentTypeID_JSPFRAGMENT.equals(fileCtId));
      }
    }
    catch (IOException e) {
      // ignore, assume it's invalid JSP

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          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();
              }
            }


          }
          catch (IOException e) {

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    if(monitor == null || monitor.isCanceled())
      return;
    
    try {
      monitor.beginTask("", 100);
      IContentDescription contentDescription = file.getContentDescription();
      monitor.worked(5);
      if (contentDescription != null) {
        IContentType contentType = contentDescription.getContentType();
        IStructuredFormatProcessor formatProcessor = getFormatProcessor(contentType.getId());
        if (formatProcessor != null && (monitor == null || !monitor.isCanceled())) {
          String message = NLS.bind(SSEUIMessages.FormatActionDelegate_3, new String[]{file.getFullPath().toString().substring(1)});          monitor.subTask(message);
          formatProcessor.setProgressMonitor(monitor);
          formatProcessor.formatFile(file);

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