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package com.sun.faces.facelets.tag.jsf;
import com.sun.faces.facelets.el.LegacyValueBinding;
import com.sun.faces.util.FacesLogger;
import javax.faces.component.UIComponent;
import javax.faces.view.facelets.*;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Jacob Hookom
* @version $Id: ComponentRule.java 10664 2012-09-20 05:53:15Z edburns $
*/
final class ComponentRule extends MetaRule {
final static class LiteralAttributeMetadata extends Metadata {
private final String name;
private final String value;
public LiteralAttributeMetadata(String name, String value) {
this.value = value;
this.name = name;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).getAttributes().put(this.name, this.value);
}
}
final static class ValueExpressionMetadata extends Metadata {
private final String name;
private final TagAttribute attr;
private final Class type;
public ValueExpressionMetadata(String name, Class type,
TagAttribute attr) {
this.name = name;
this.attr = attr;
this.type = type;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueExpression(this.name, this.attr
.getValueExpression(ctx, this.type));
}
}
final static class ValueBindingMetadata extends Metadata {
private final String name;
private final TagAttribute attr;
private final Class type;
public ValueBindingMetadata(String name, Class type, TagAttribute attr) {
this.name = name;
this.attr = attr;
this.type = type;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueBinding(this.name,
new LegacyValueBinding(this.attr.getValueExpression(ctx,
this.type)));
}
}
private final static Logger log = FacesLogger.FACELETS_COMPONENT.getLogger();
public final static ComponentRule Instance = new ComponentRule();
public ComponentRule() {
super();
}
public Metadata applyRule(String name, TagAttribute attribute,
MetadataTarget meta) {
if (meta.isTargetInstanceOf(UIComponent.class)) {
// if component and dynamic, then must set expression
if (!attribute.isLiteral()) {
Class type = meta.getPropertyType(name);
if (type == null) {
type = Object.class;
}
return new ValueExpressionMetadata(name, type, attribute);
} else if (meta.getWriteMethod(name) == null) {
// this was an attribute literal, but not property
warnAttr(attribute, meta.getTargetClass(), name);
return new LiteralAttributeMetadata(name, attribute.getValue());
}
}
return null;
}
private static void warnAttr(TagAttribute attr, Class type, String n) {
if (log.isLoggable(Level.FINER)) {
log.finer(attr + " Property '" + n + "' is not on type: "
+ type.getName());
}
}
}