io.wcm.samples.handler.controller.navigation.SiteRootRelativePageLink.java Source code

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Here is the source code for io.wcm.samples.handler.controller.navigation.SiteRootRelativePageLink.java

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/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2014 wcm.io
 * %%
 * 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.
 * #L%
 */
package io.wcm.samples.handler.controller.navigation;

import io.wcm.handler.link.Link;
import io.wcm.handler.link.LinkHandler;
import io.wcm.samples.handler.util.SiteHelper;

import java.util.Map;

import javax.inject.Inject;

import org.apache.commons.lang3.StringUtils;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.models.annotations.Default;
import org.apache.sling.models.annotations.Model;
import org.apache.sling.models.annotations.injectorspecific.RequestAttribute;
import org.apache.sling.models.annotations.injectorspecific.Self;

import com.day.cq.wcm.api.Page;

/**
 * Generic model for building a link to page addressed via a path relative to site root.
 * If not path is given, the site root is referenced.
 * The link title is set to navigation title / page title / title text (whatever is not empty).
 */
@Model(adaptables = SlingHttpServletRequest.class)
public class SiteRootRelativePageLink {

    private Link link;
    private String title;

    /**
     * @param siteHelper
     * @param linkHandler
     * @param relativePath Relative path of page to link to
     * @param titleType Type of title to display: pageTitle or navigationTitle
     */
    @Inject
    public SiteRootRelativePageLink(@Self SiteHelper siteHelper, @Self LinkHandler linkHandler,
            @RequestAttribute(name = "relativePath", optional = true) String relativePath,
            @RequestAttribute(name = "titleType", optional = true) @Default(values = "navigationTitle") String titleType) {
        Page page;
        if (StringUtils.isNotEmpty(relativePath)) {
            page = siteHelper.getRelativePage(relativePath);
        } else {
            page = siteHelper.getSiteRootPage();
        }
        if (page != null) {
            link = linkHandler.get(page).build();
            switch (titleType) {
            case "pageTitle":
                title = StringUtils.defaultString(page.getPageTitle(), page.getTitle());
                break;
            case "navigationTitle":
            default:
                title = StringUtils.defaultString(page.getNavigationTitle(), page.getTitle());
                break;
            }
        }
    }

    /**
     * @return Link
     */
    public Link getMetadata() {
        return link;
    }

    /**
     * @return Link is valid
     */
    public boolean isValid() {
        return link.isValid();
    }

    /**
     * @return Anchor attributes
     */
    public Map<String, String> getAttributes() {
        return link.getAnchorAttributes();
    }

    /**
     * @return Link title
     */
    public String getTitle() {
        return title;
    }

}