com.sun.faces.facelets.tag.TagHandlerImpl Maven / Gradle / Ivy
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package com.sun.faces.facelets.tag;
import javax.faces.view.facelets.CompositeFaceletHandler;
import javax.faces.view.facelets.FaceletHandler;
import javax.faces.view.facelets.TagConfig;
import javax.faces.view.facelets.TagHandler;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
*
* @author edburns
*/
public abstract class TagHandlerImpl extends TagHandler {
public TagHandlerImpl(TagConfig config) {
super(config);
}
/**
* Searches child handlers, starting at the 'nextHandler' for all
* instances of the passed type. This process will stop searching
* a branch if an instance is found.
*
* @param type Class type to search for
* @return iterator over instances of FaceletHandlers of the matching type
*/
protected final Iterator findNextByType(Class type) {
List found = new ArrayList();
if (type.isAssignableFrom(this.nextHandler.getClass())) {
found.add(this.nextHandler);
} else if (this.nextHandler instanceof CompositeFaceletHandler) {
FaceletHandler[] h = ((CompositeFaceletHandler) this.nextHandler).getHandlers();
for (int i = 0; i < h.length; i++) {
if (type.isAssignableFrom(h[i].getClass())) {
found.add(h[i]);
}
}
}
return found.iterator();
}
public final static Iterator findNextByType(FaceletHandler nextHandler,
Class type) {
List found = new ArrayList();
if (type.isAssignableFrom(nextHandler.getClass())) {
found.add(nextHandler);
} else if (nextHandler instanceof CompositeFaceletHandler) {
FaceletHandler[] h = ((CompositeFaceletHandler) nextHandler).getHandlers();
for (int i = 0; i < h.length; i++) {
if (type.isAssignableFrom(h[i].getClass())) {
found.add(h[i]);
}
}
}
return found.iterator();
}
}