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package org.eclipse.jst.jsf.facelet.core.internal.cm;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IProject;
import org.eclipse.jst.jsf.common.dom.TagIdentifier;
import org.eclipse.jst.jsf.core.internal.tld.TagIdentifierFactory;
import org.eclipse.jst.jsf.facelet.core.internal.FaceletCorePlugin;
import org.eclipse.jst.jsf.facelet.core.internal.cm.strategy.IExternalMetadataStrategy;
import org.eclipse.jst.jsf.facelet.core.internal.cm.strategy.JSPExternalMetadataStrategy;
import org.eclipse.jst.jsf.facelet.core.internal.cm.strategy.MDExternalMetadataStrategy;
import org.eclipse.jst.jsf.facelet.core.internal.cm.strategy.TagInfoStrategyComposite;
import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.TLDDocument;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
/**
* An external tag info that checks first the meta-data repository and second in
* the provided TLDDocument for data.
*
* @author cbateman
*
*/
/* package */class MetadataTagInfo extends ExternalTagInfo
{
private final String _uri;
// private final MDExternalMetadataStrategy _mdStrategy;
// private final JSPExternalMetadataStrategy _jspStrategy;
private final TagInfoStrategyComposite _compositeStrategy;
private MetadataTagInfo(final IProject project, final TLDDocument doc,
final String uri)
{
_uri = uri;
IExternalMetadataStrategy mdStrategy = MDExternalMetadataStrategy.create(project);
JSPExternalMetadataStrategy jspStrategy = new JSPExternalMetadataStrategy(doc);
final List<String> ids = new ArrayList<String>();
ids.add(MDExternalMetadataStrategy.STRATEGY_ID);
ids.add(JSPExternalMetadataStrategy.STRATEGY_ID);
_compositeStrategy = new TagInfoStrategyComposite(ids);
_compositeStrategy.addStrategy(mdStrategy);
_compositeStrategy.addStrategy(jspStrategy);
}
public MetadataTagInfo(final IProject project, final String uri)
{
this(project, null, uri);
}
/**
* @param project
* @param doc
*/
public MetadataTagInfo(final IProject project, final TLDDocument doc)
{
this(project, doc, doc.getUri());
}
@Override
public Object getTagProperty(final String tagName, final String key)
{
final TagIdentifier tagId = TagIdentifierFactory.createJSPTagWrapper(
_uri, tagName);
_compositeStrategy.resetIterator();
for (ExternalTagInfo tagInfo = getNextExternalInfo(tagId); tagInfo != _compositeStrategy
.getNoResult(); tagInfo = getNextExternalInfo(tagId))
{
try
{
if (tagInfo != _compositeStrategy.getNoResult())
{
final Object value = tagInfo.getTagProperty(tagName, key);
if (value != null)
{
return value;
}
}
// fall-through
}
catch (final Exception e)
{
FaceletCorePlugin.log("During meta-data strategy", e); //$NON-NLS-1$
}
}
return null;
}
/**
* @param tagName
* @return a named node map of known attributes for the tag, or null if not
* found
*/
@Override
public CMNamedNodeMap getAttributes(final String tagName)
{
final TagIdentifier tagId = TagIdentifierFactory.createJSPTagWrapper(
_uri, tagName);
_compositeStrategy.resetIterator();
for (ExternalTagInfo tagInfo = getNextExternalInfo(tagId); tagInfo != _compositeStrategy
.getNoResult(); tagInfo = getNextExternalInfo(tagId))
{
try
{
if (tagInfo != _compositeStrategy.getNoResult())
{
final CMNamedNodeMap nodeMap = tagInfo
.getAttributes(tagName);
if (nodeMap != null)
{
return nodeMap;
}
}
// fall-through
}
catch (final Exception e)
{
FaceletCorePlugin.log("During meta-data strategy", e); //$NON-NLS-1$
}
}
return null;
}
private ExternalTagInfo getNextExternalInfo(final TagIdentifier input)
{
return _compositeStrategy.perform(input);
}
}
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