Java IDOMModel.releaseFromRead方法代码示例

import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; //导入方法依赖的package包/类
private void removeSchemaUiBinderElementProposal(
    IStructuredDocument document, List<ICompletionProposal> proposals) {
  IDOMModel model = (IDOMModel) StructuredModelManager.getModelManager().getExistingModelForRead(
      document);
  try {
    IDOMElement rootElement = (IDOMElement) model.getDocument().getDocumentElement();
    if (rootElement == null) {
      // There is no root element, so the <ui:UiBinder> is a valid proposal
      return;
    }

    // Remove the proposal whose display string matches the root element's
    // name (e.g. "ui:UiBinder")
    for (Iterator<ICompletionProposal> it = proposals.iterator(); it.hasNext();) {
      ICompletionProposal proposal = it.next();
      if (rootElement.getNodeName().equals(proposal.getDisplayString())) {
        it.remove();
      }
    }
  } finally {
    model.releaseFromRead();
  }
}
 

import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; //导入方法依赖的package包/类
private String getNamedStyleAtOffset(int offset) {
	IDOMModel model = null;
	IStructuredDocument document = null;
	try {
		model = getDomModel();
		document = model.getStructuredDocument();
		// ensure the offset is clean
		if (offset >= document.getLength())
			return getNamedStyleAtOffset(document.getLength() - 1);
		else if (offset < 0)
			return getNamedStyleAtOffset(0);
		IStructuredDocumentRegion documentRegion = document.getFirstStructuredDocumentRegion();
		while (documentRegion != null && !documentRegion.containsOffset(offset)) {
			documentRegion = documentRegion.getNext();
		}
		if (documentRegion != null) {
			// find the ITextRegion's Context at this offset
			ITextRegion interest = documentRegion.getRegionAtCharacterOffset(offset);
			if (interest == null)
				return null;
			if (offset > documentRegion.getTextEndOffset(interest))
				return null;
			String regionContext = interest.getType();
			if (regionContext == null)
				return null;
			// find the named style (internal/selectable name) for that
			// context
			String namedStyle = (String) fContextToStyleMap.get(regionContext);
			if (namedStyle != null) {
				return namedStyle;
			}
		}
	} catch (IOException e) {
		Trace.trace(Trace.SEVERE, "Error while loading DOM.", e);
	} finally {
		if (model != null) {
			model.releaseFromRead();
		}
	}
	return null;
}
 

import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; //导入方法依赖的package包/类
/**
 * Make sure to call {@link #release()} after you are done!
 * 
 * @return a {@link DtdRemover} or null
 */
private static DtdRemover create(ITextViewer textViewer,
    int documentPosition) {

  IDocumentPartitionerFactory docPartitionerFactory = new IDocumentPartitionerFactory() {
    public IDocumentPartitioner createDocumentPartitioner() {
      return new StructuredTextPartitionerForUiBinderXml();
    }
  };

  StructuredDocumentCloner structuredDocumentCloner = new StructuredDocumentCloner(
      IXMLPartitions.XML_DEFAULT, docPartitionerFactory);
  IStructuredDocument clonedDoc = structuredDocumentCloner.clone(textViewer.getDocument());
  if (clonedDoc == null) {
    return null;
  }

  IDOMModel model = (IDOMModel) StructuredModelManager.getModelManager().getExistingModelForRead(
      clonedDoc);
  try {
    IDOMNode docType = (IDOMNode) model.getDocument().getDoctype();
    if (docType == null) {
      return null;
    }

    IStructuredDocumentRegion firstRegion = docType.getFirstStructuredDocumentRegion();
    IStructuredDocumentRegion lastRegion = docType.getLastStructuredDocumentRegion();
    int firstPos = firstRegion.getStartOffset();
    int lastPos = lastRegion.getEndOffset();
    int docTypeLen = lastPos - firstPos;

    if (docTypeLen == 0 || documentPosition >= firstPos
        && documentPosition <= lastPos) {
      return null;
    }

    try {
      clonedDoc.replace(firstPos, docTypeLen,
          StringUtilities.repeatCharacter(' ', docTypeLen));
    } catch (BadLocationException e) {
      GWTPluginLog.logError(e,
          "Unexpected bad location while removing doctype");
      return null;
    }

  } finally {
    if (model != null) {
      model.releaseFromRead();
    }
  }

  return new DtdRemover(new DocumentChangingTextViewer(textViewer,
      clonedDoc), documentPosition, structuredDocumentCloner, clonedDoc);
}
 

import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; //导入方法依赖的package包/类
private void removeSchemaWidgetProposals(List<ICompletionProposal> proposals,
    IDocument document) {

  PackageBasedNamespaceManager packageManager = new PackageBasedNamespaceManager();

  IDOMModel model = (IDOMModel) StructuredModelManager.getModelManager().getExistingModelForRead(
      document);
  try {
    packageManager.readFromElement(model.getDocument().getDocumentElement());
  } finally {
    if (model != null) {
      model.releaseFromRead();
    }
  }

  Iterator<ICompletionProposal> it = proposals.iterator();
  while (it.hasNext()) {
    ICompletionProposal proposal = it.next();
    if (!(proposal instanceof CustomCompletionProposal)) {
      // Schema-generated widget proposals are instances of this class
      continue;
    }

    String displayString = proposal.getDisplayString();
    String prefix = XmlUtilities.getPrefix(displayString);
    if (prefix == null) {
      // Must have a namespace
      continue;
    }

    String packageName = packageManager.getPackageName(prefix);
    if (packageName == null) {
      // This doesn't map to a widget
      continue;
    }

    String widgetName = XmlUtilities.getUnprefixed(displayString);
    if (widgetName.length() == 0
        || !Character.isUpperCase(widgetName.charAt(0))) {
      // Not a widget
      continue;
    }

    // Passes our test, it must be a widget!
    it.remove();
  }
}
 

import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; //导入方法依赖的package包/类
private String getNamedStyleAtOffset(int offset) {
	IDOMModel model = null;
	IStructuredDocument document = null;
	try {
		model = getDomModel();
		document = model.getStructuredDocument();
		// ensure the offset is clean
		if (offset >= document.getLength())
			return getNamedStyleAtOffset(document.getLength() - 1);
		else if (offset < 0)
			return getNamedStyleAtOffset(0);
		IStructuredDocumentRegion documentRegion = document
				.getFirstStructuredDocumentRegion();
		while (documentRegion != null
				&& !documentRegion.containsOffset(offset)) {
			documentRegion = documentRegion.getNext();
		}
		if (documentRegion != null) {
			// find the ITextRegion's Context at this offset
			ITextRegion interest = documentRegion
					.getRegionAtCharacterOffset(offset);
			if (interest == null)
				return null;
			if (offset > documentRegion.getTextEndOffset(interest))
				return null;
			String regionContext = interest.getType();
			if (regionContext == null)
				return null;
			// find the named style (internal/selectable name) for that
			// context
			String namedStyle = (String) fContextToStyleMap
					.get(regionContext);
			if (namedStyle != null) {
				return namedStyle;
			}
		}
	} catch (IOException e) {
		Trace.trace(Trace.SEVERE, "Error while loading DOM.", e);
	} finally {
		if (model != null) {
			model.releaseFromRead();
		}
	}
	return null;
}