org.primefaces.metadata.transformer.MetadataTransformerExecutor Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.metadata.transformer;
import org.primefaces.metadata.transformer.impl.BeanValidationInputMetadataTransformer;
import java.io.IOException;
import java.util.Iterator;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.PreRenderComponentEvent;
import javax.faces.event.SystemEvent;
import javax.faces.event.SystemEventListener;
import org.primefaces.context.PrimeApplicationContext;
public class MetadataTransformerExecutor implements SystemEventListener {
private static final MetadataTransformer BV_INPUT_METADATA_TRANSFORMER = new BeanValidationInputMetadataTransformer();
@Override
public void processEvent(SystemEvent event) throws AbortProcessingException {
try {
if (event instanceof PreRenderComponentEvent) {
PreRenderComponentEvent preRenderComponentEvent = (PreRenderComponentEvent) event;
execute(PrimeApplicationContext.getCurrentInstance(FacesContext.getCurrentInstance()),
preRenderComponentEvent.getComponent());
}
}
catch (IOException e) {
throw new FacesException(e);
}
}
@Override
public boolean isListenerForSource(Object source) {
return source instanceof UIComponent;
}
public static void execute(PrimeApplicationContext applicationContext, UIComponent component) throws IOException {
if (applicationContext.getConfig().isTransformMetadataEnabled()) {
FacesContext context = FacesContext.getCurrentInstance();
if (applicationContext.getConfig().isBeanValidationEnabled()) {
BV_INPUT_METADATA_TRANSFORMER.transform(context, applicationContext, component);
}
if (!applicationContext.getMetadataTransformers().isEmpty()) {
for (int i = 0; i < applicationContext.getMetadataTransformers().size(); i++) {
applicationContext.getMetadataTransformers().get(i).transform(context, applicationContext, component);
}
}
}
}
public static void registerMetadataTransformer(MetadataTransformer metadataTransformer) {
PrimeApplicationContext.getCurrentInstance(FacesContext.getCurrentInstance())
.getMetadataTransformers().add(metadataTransformer);
}
public static MetadataTransformer removeMetadataTransformer(final Class clazz) {
Iterator iterator = PrimeApplicationContext.getCurrentInstance(FacesContext.getCurrentInstance())
.getMetadataTransformers().iterator();
while (iterator.hasNext()) {
MetadataTransformer metadataTransformer = iterator.next();
if (metadataTransformer.getClass().equals(clazz)) {
iterator.remove();
return metadataTransformer;
}
}
return null;
}
}