Dump the JSF component tree to standard out starting with the view root. - Java java.lang

Java examples for java.lang:Throwable

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Description

Dump the JSF component tree to standard out starting with the view root.

Demo Code

/*//from   w w  w.  ja  v  a 2s  .c  o  m
 * JBoss, Home of Professional Open Source.
 * Copyright 2007, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
import java.util.Iterator;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;

public class Main{
    /**
     * Dump the component tree to standard out starting with the view root.
     */
    public static void dumpComponentTree(FacesContext facesContext) {
        dumpComponentTree(facesContext.getViewRoot(), facesContext, "");
    }
    /**
     * Dump the component tree to standard out starting with the given component.
     */
    public static void dumpComponentTree(UIComponent component,
            FacesContext facesContext, String spacing) {
        if (component == null)
            return;

        System.out.print(spacing);
        System.out.print(component.getClientId(facesContext));
        System.out.print("  ");
        System.out.println(component.getClass().getName());

        for (Iterator facetsAndChildren = component.getFacetsAndChildren(); facetsAndChildren
                .hasNext();) {
            UIComponent facetOrChild = (UIComponent) facetsAndChildren
                    .next();
            dumpComponentTree(facetOrChild, facesContext, spacing + "  ");
        }
    }
}

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