com.adobe.granite.ui.components.rendercondition.OrRenderCondition Maven / Gradle / Ivy

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 *  Copyright 2014 Adobe Systems Incorporated
 *  All Rights Reserved.
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package com.adobe.granite.ui.components.rendercondition;

import java.io.IOException;
import java.util.Iterator;

import javax.annotation.Nonnull;
import javax.servlet.ServletException;

import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.Resource;

/**
 * The condition that returns {@code true} when any of the sub conditions is
 * returning {@code true}; {@code false} otherwise.
 */
public class OrRenderCondition extends AbstractCompositeRenderCondition {
    public OrRenderCondition(@Nonnull SlingHttpServletRequest request, @Nonnull SlingHttpServletResponse response,
            @Nonnull Resource resource) {
        super(request, response, resource);
    }

    @SuppressWarnings("null")
    @Override
    public boolean check() throws ServletException, IOException {
        Iterator children = resource.getChildren().iterator();

        if (!children.hasNext()) {
            return true;
        }

        while (children.hasNext()) {
            if (call(children.next()).check()) {
                return true;
            }
        }

        return false;
    }
}