com.liferay.faces.bridge.ext.client.internal.BrowserSnifferFactoryLiferayImpl.java Source code

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Here is the source code for com.liferay.faces.bridge.ext.client.internal.BrowserSnifferFactoryLiferayImpl.java

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/**
 * Copyright (c) 2000-2017 Liferay, Inc. All rights reserved.
 *
 * This library 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 library 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.
 */
package com.liferay.faces.bridge.ext.client.internal;

import java.io.Serializable;

import javax.faces.context.ExternalContext;
import javax.portlet.PortletRequest;
import javax.servlet.http.HttpServletRequest;

import com.liferay.faces.util.client.BrowserSniffer;
import com.liferay.faces.util.client.BrowserSnifferFactory;

import com.liferay.portal.kernel.util.PortalUtil;

/**
 * @author  Kyle Stiemann
 */
public class BrowserSnifferFactoryLiferayImpl extends BrowserSnifferFactory implements Serializable {

    // serialVersionUID
    private static final long serialVersionUID = 1618487876717568315L;

    // Private Data Members
    private BrowserSnifferFactory wrappedBrowserSnifferFactory;

    public BrowserSnifferFactoryLiferayImpl(BrowserSnifferFactory browserSnifferFactory) {
        this.wrappedBrowserSnifferFactory = browserSnifferFactory;
    }

    @Override
    public BrowserSniffer getBrowserSniffer(ExternalContext externalContext) {

        PortletRequest portletRequest = (PortletRequest) externalContext.getRequest();
        HttpServletRequest httpServletRequest = PortalUtil.getHttpServletRequest(portletRequest);

        // Calling ExternalContext.setRequest(httpServletRequest) adds extra overhead because all of the
        // underlying maps have to get re-created. Instead, create a simple ExternalContextWrapper.
        ExternalContext externalContextBrowserSnifferImpl = new ExternalContextBrowserSnifferImpl(externalContext,
                httpServletRequest);

        BrowserSnifferFactory firstNonBridgeBrowserSnifferFactory = getFirstNonBridgeBrowserSnifferFactory();

        return firstNonBridgeBrowserSnifferFactory.getBrowserSniffer(externalContextBrowserSnifferImpl);
    }

    @Override
    public BrowserSnifferFactory getWrapped() {
        return wrappedBrowserSnifferFactory;
    }

    private BrowserSnifferFactory getFirstNonBridgeBrowserSnifferFactory() {

        BrowserSnifferFactory firstNonBridgeBrowserSnifferFactory = wrappedBrowserSnifferFactory;

        while (firstNonBridgeBrowserSnifferFactory.getClass().getName().startsWith("com.liferay.faces.bridge")) {
            firstNonBridgeBrowserSnifferFactory = firstNonBridgeBrowserSnifferFactory.getWrapped();
        }

        return firstNonBridgeBrowserSnifferFactory;
    }
}