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org.primefaces.util.ResourceUtils Maven / Gradle / Ivy
/*
* Copyright 2014 tandraschko.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.primefaces.util;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.FacesException;
import javax.faces.application.Application;
import javax.faces.application.Resource;
import javax.faces.application.ResourceHandler;
import javax.faces.component.UIComponent;
import javax.faces.component.UIOutput;
import javax.faces.context.FacesContext;
public class ResourceUtils {
private static final Logger LOG = Logger.getLogger(ResourceUtils.class.getName());
public static final String RENDERER_SCRIPT = "javax.faces.resource.Script";
public static final String RENDERER_STYLESHEET = "javax.faces.resource.Stylesheet";
public static void addComponentResource(FacesContext context, String name, String library, String target) {
Application application = context.getApplication();
UIComponent componentResource = application.createComponent(UIOutput.COMPONENT_TYPE);
componentResource.setRendererType(application.getResourceHandler().getRendererTypeForResourceName(name));
componentResource.getAttributes().put("name", name);
componentResource.getAttributes().put("library", library);
componentResource.getAttributes().put("target", target);
context.getViewRoot().addComponentResource(context, componentResource, target);
}
public static void addComponentResource(FacesContext context, String name, String library) {
addComponentResource(context, name, library, "head");
}
public static void addComponentResource(FacesContext context, String name) {
addComponentResource(context, name, Constants.LIBRARY, "head");
}
public static boolean isScript(UIComponent component) {
return RENDERER_SCRIPT.equals(component.getRendererType());
}
public static boolean isStylesheet(UIComponent component) {
return RENDERER_STYLESHEET.equals(component.getRendererType());
}
public static ArrayList getComponentResources(FacesContext context) {
ArrayList resourceInfos = new ArrayList();
List resources = context.getViewRoot().getComponentResources(context, "head");
if (resources != null) {
for (UIComponent resource : resources) {
ResourceUtils.ResourceInfo resourceInfo = newResourceInfo(resource);
if (resourceInfo != null && !resourceInfos.contains(resourceInfo)) {
resourceInfos.add(resourceInfo);
}
}
}
return resourceInfos;
}
public static ArrayList filterStylesheets(FacesContext context, ArrayList resourceInfos) {
if (resourceInfos == null || resourceInfos.isEmpty()) {
return null;
}
ResourceHandler resourceHandler = context.getApplication().getResourceHandler();
ArrayList stylesheets = new ArrayList();
for (ResourceInfo resourceInfo : resourceInfos) {
if (isStylesheet(resourceInfo.getResource()) && !isInline(resourceInfo)) {
Resource resource;
if (ComponentUtils.isValueBlank(resourceInfo.getLibrary())) {
resource = resourceHandler.createResource(resourceInfo.getName());
}
else {
resource = resourceHandler.createResource(resourceInfo.getName(), resourceInfo.getLibrary());
}
if (resource == null) {
LOG.log(Level.WARNING, "Resource not found, ignore it. Name: " + resourceInfo.getName() + ", Library: " + resourceInfo.getLibrary());
}
else {
stylesheets.add(resource.getRequestPath());
}
}
}
return stylesheets;
}
public static ArrayList filterScripts(FacesContext context, ArrayList resourceInfos) {
if (resourceInfos == null || resourceInfos.isEmpty()) {
return null;
}
ResourceHandler resourceHandler = context.getApplication().getResourceHandler();
ArrayList scripts = new ArrayList();
for (ResourceInfo resourceInfo : resourceInfos) {
if (isScript(resourceInfo.getResource()) && !isInline(resourceInfo)) {
Resource resource;
if (ComponentUtils.isValueBlank(resourceInfo.getLibrary())) {
resource = resourceHandler.createResource(resourceInfo.getName());
}
else {
resource = resourceHandler.createResource(resourceInfo.getName(), resourceInfo.getLibrary());
}
if (resource == null) {
LOG.log(Level.WARNING, "Resource not found, ignore it. Name: " + resourceInfo.getName() + ", Library: " + resourceInfo.getLibrary());
}
else {
scripts.add(resource.getRequestPath());
}
}
}
return scripts;
}
public static boolean isInline(ResourceInfo resourceInfo) {
if (resourceInfo != null) {
return ComponentUtils.isValueBlank(resourceInfo.getLibrary()) && ComponentUtils.isValueBlank(resourceInfo.getName());
}
return false;
}
public static ResourceInfo newResourceInfo(UIComponent component) {
if (!(component instanceof UIOutput)) {
return null;
}
String library = (String) component.getAttributes().get("library");
String name = (String) component.getAttributes().get("name");
return new ResourceInfo(library, name, component);
}
public static Resource newResource(ResourceInfo resourceInfo, FacesContext context) {
Resource resource = context.getApplication().getResourceHandler().createResource(resourceInfo.getName(), resourceInfo.getLibrary());
if (resource == null) {
throw new FacesException("Resource '" + resourceInfo.getName() + "' in library '" + resourceInfo.getLibrary() + "' not found!");
}
return resource;
}
public static class ResourceInfo implements Serializable {
private String library;
private String name;
private UIComponent resource;
public ResourceInfo(String library, String name, UIComponent resource) {
this.library = library;
this.name = name;
this.resource = resource;
}
public String getLibrary() {
return library;
}
public void setLibrary(String library) {
this.library = library;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public UIComponent getResource() {
return resource;
}
public void setResource(UIComponent resource) {
this.resource = resource;
}
@Override
public int hashCode() {
int hash = 7;
hash = 41 * hash + (this.library != null ? this.library.hashCode() : 0);
hash = 41 * hash + (this.name != null ? this.name.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final ResourceInfo other = (ResourceInfo) obj;
if ((this.library == null) ? (other.library != null) : !this.library.equals(other.library)) {
return false;
}
if ((this.name == null) ? (other.name != null) : !this.name.equals(other.name)) {
return false;
}
return true;
}
}
}
