com.liferay.nested.portlets.web.internal.display.context.NestedPortletsDisplayContext.java Source code

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Here is the source code for com.liferay.nested.portlets.web.internal.display.context.NestedPortletsDisplayContext.java

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/**
 * Copyright (c) 2000-present 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.nested.portlets.web.internal.display.context;

import com.liferay.nested.portlets.web.configuration.NestedPortletsPortletInstanceConfiguration;
import com.liferay.portal.kernel.model.LayoutTemplate;
import com.liferay.portal.kernel.module.configuration.ConfigurationException;
import com.liferay.portal.kernel.service.LayoutTemplateLocalServiceUtil;
import com.liferay.portal.kernel.servlet.PersistentHttpServletRequestWrapper;
import com.liferay.portal.kernel.theme.PortletDisplay;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.ListUtil;
import com.liferay.portal.kernel.util.PredicateFilter;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.plugin.PluginUtil;

import java.util.List;

import javax.servlet.DispatcherType;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

/**
 * @author Juergen Kappler
 */
public class NestedPortletsDisplayContext {

    public NestedPortletsDisplayContext(HttpServletRequest request) throws ConfigurationException {

        _request = request;

        ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

        PortletDisplay portletDisplay = themeDisplay.getPortletDisplay();

        _nestedPortletsPortletInstanceConfiguration = portletDisplay
                .getPortletInstanceConfiguration(NestedPortletsPortletInstanceConfiguration.class);
    }

    /**
      * @see com.liferay.portal.util.PortalImpl#getOriginalServletRequest
      */
    public HttpServletRequest getLastForwardRequest() {
        HttpServletRequest currentRequest = _request;
        HttpServletRequestWrapper currentRequestWrapper = null;
        HttpServletRequest originalRequest = null;
        HttpServletRequest nextRequest = null;

        while (currentRequest instanceof HttpServletRequestWrapper) {
            if (currentRequest instanceof PersistentHttpServletRequestWrapper) {

                PersistentHttpServletRequestWrapper persistentHttpServletRequestWrapper = (PersistentHttpServletRequestWrapper) currentRequest;

                persistentHttpServletRequestWrapper = persistentHttpServletRequestWrapper.clone();

                if (originalRequest == null) {
                    originalRequest = persistentHttpServletRequestWrapper;
                }

                if (currentRequestWrapper != null) {
                    currentRequestWrapper.setRequest(persistentHttpServletRequestWrapper);
                }

                currentRequestWrapper = persistentHttpServletRequestWrapper;
            }

            HttpServletRequestWrapper httpServletRequestWrapper = (HttpServletRequestWrapper) currentRequest;

            nextRequest = (HttpServletRequest) httpServletRequestWrapper.getRequest();

            if ((currentRequest.getDispatcherType() == DispatcherType.FORWARD)
                    && (nextRequest.getDispatcherType() == DispatcherType.REQUEST)) {

                break;
            }

            currentRequest = nextRequest;
        }

        if (currentRequestWrapper != null) {
            currentRequestWrapper.setRequest(currentRequest);
        }

        if (originalRequest != null) {
            return originalRequest;
        }

        return currentRequest;
    }

    public String getLayoutTemplateId() {
        if (_layoutTemplateId != null) {
            return _layoutTemplateId;
        }

        _layoutTemplateId = _nestedPortletsPortletInstanceConfiguration.layoutTemplateId();

        return _layoutTemplateId;
    }

    public List<LayoutTemplate> getLayoutTemplates() {
        ThemeDisplay themeDisplay = (ThemeDisplay) _request.getAttribute(WebKeys.THEME_DISPLAY);

        List<LayoutTemplate> layoutTemplates = LayoutTemplateLocalServiceUtil
                .getLayoutTemplates(themeDisplay.getThemeId());

        layoutTemplates = PluginUtil.restrictPlugins(layoutTemplates, themeDisplay.getUser());

        final List<String> unSupportedLayoutTemplateIds = getUnsupportedLayoutTemplateIds();

        return ListUtil.filter(layoutTemplates, new PredicateFilter<LayoutTemplate>() {

            @Override
            public boolean filter(LayoutTemplate layoutTemplate) {
                return !unSupportedLayoutTemplateIds.contains(layoutTemplate.getLayoutTemplateId());
            }

        });
    }

    protected List<String> getUnsupportedLayoutTemplateIds() {
        return ListUtil.fromArray(_nestedPortletsPortletInstanceConfiguration.layoutTemplatesUnsupported());
    }

    private String _layoutTemplateId;
    private final NestedPortletsPortletInstanceConfiguration _nestedPortletsPortletInstanceConfiguration;
    private final HttpServletRequest _request;

}