/*
* #%L
* ACS AEM Commons Bundle
* %%
* Copyright (C) 2013 Adobe
* %%
* 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 com.adobe.acs.commons.contentfinder.querybuilder.impl;
import com.day.cq.commons.jcr.JcrConstants;
import com.day.cq.dam.api.Asset;
import com.day.cq.dam.api.DamConstants;
import com.day.cq.dam.api.Rendition;
import com.day.cq.dam.commons.util.DamUtil;
import com.day.cq.search.result.Hit;
import com.day.cq.wcm.api.NameConstants;
import com.day.cq.wcm.api.Page;
import org.apache.commons.lang.StringUtils;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ValueMap;
import javax.jcr.RepositoryException;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;
public final class ContentFinderHitBuilder {
private static final Long ONE_MILLION = 1000000L;
private ContentFinderHitBuilder() {
}
private static final int ELLIPSE_LENGTH = 3;
private static final int MAX_EXCERPT_LENGTH = 32;
private static final String DAM_THUMBNAIL = "cq5dam.thumbnail.48.48.png";
/**
* Builds the result object that will representing a CF view record for the provided hit.
* <p>
* This method will generate the result object data points based on if the hit is:
* 1) a Page
* 2) an Asset
* 3) Other
*
* @param hit a hit
* @return a result object
* @throws RepositoryException if something goes wrong
*/
public static Map<String, Object> buildGenericResult(final Hit hit) throws RepositoryException {
Map<String, Object> map = new LinkedHashMap<String, Object>();
final Resource resource = hit.getResource();
/**
* Apply custom properties based on the "type"
*/
// Assets
final Asset asset = DamUtil.resolveToAsset(resource);
if (asset != null) {
return addAssetData(asset, hit, map);
}
// Pages
final Page page = getPage(resource);
if (page != null) {
return addPageData(page, hit, map);
}
// Other
return addOtherData(hit, map);
}
/**
* Derives and adds Page related information to the map representing the hit.
*
* @param hit
* @param map
* @return
* @throws javax.jcr.RepositoryException
*/
private static Map<String, Object> addPageData(final Page page, final Hit hit, Map<String, Object> map)
throws RepositoryException {
// Title
String title = page.getName();
if (StringUtils.isNotBlank(page.getTitle())) {
title = page.getTitle();
} else if (StringUtils.isNotBlank(page.getPageTitle())) {
title = page.getPageTitle();
} else if (StringUtils.isNotBlank(page.getNavigationTitle())) {
title = page.getNavigationTitle();
}
// Excerpt
String excerpt = hit.getExcerpt();
if (StringUtils.isBlank(hit.getExcerpt())) {
excerpt = StringUtils.stripToEmpty(page.getDescription());
if (excerpt.length() > MAX_EXCERPT_LENGTH) {
excerpt = StringUtils.substring(excerpt, 0, (MAX_EXCERPT_LENGTH - ELLIPSE_LENGTH)) + "...";
}
}
map.put("path", page.getPath());
map.put("name", page.getName());
map.put("title", title);
map.put("excerpt", excerpt);
map.put("ddGroups", "page");
map.put("type", "Page");
map.put("lastModified", getLastModified(page));
return map;
}
/**
* Derives and adds Asset related information to the map representing the hit.
*
* @param hit
* @param map
* @return
* @throws javax.jcr.RepositoryException
*/
private static Map<String, Object> addAssetData(final Asset asset, final Hit hit, Map<String, Object> map)
throws RepositoryException {
String title = asset.getName();
if (StringUtils.isNotBlank(asset.getMetadataValue(DamConstants.DC_TITLE))) {
title = asset.getMetadataValue(DamConstants.DC_TITLE);
}
// Excerpt
String excerpt = hit.getExcerpt();
if (StringUtils.isBlank(hit.getExcerpt())) {
excerpt = StringUtils.stripToEmpty(asset.getMetadataValue(DamConstants.DC_DESCRIPTION));
if (excerpt.length() > MAX_EXCERPT_LENGTH) {
excerpt = StringUtils.substring(excerpt, 0, (MAX_EXCERPT_LENGTH - ELLIPSE_LENGTH)) + "...";
}
}
map.put("path", asset.getPath());
map.put("name", asset.getName());
map.put("title", title);
map.put("excerpt", excerpt);
map.put("mimeType", asset.getMimeType());
map.put("size", getSize(asset));
map.put("ck", getCK(asset));
map.put("type", "Asset");
map.put("lastModified", getLastModified(asset));
return map;
}
/**
* Derives and adds Other (non-Page, non-Asset) related information to the map representing the hit.
*
* @param hit
* @param map
* @return
* @throws javax.jcr.RepositoryException
*/
private static Map<String, Object> addOtherData(final Hit hit, Map<String, Object> map)
throws RepositoryException {
final Resource resource = hit.getResource();
final ValueMap properties = resource.adaptTo(ValueMap.class);
map.put("path", resource.getPath());
map.put("name", resource.getName());
map.put("title", properties.get("jcr:title", resource.getName()));
map.put("excerpt", hit.getExcerpt());
map.put("lastModified", getLastModified(resource));
map.put("type", "Data");
return map;
}
/**
* Get the last modified date for an Asset.
*
* @param asset
* @return
*/
private static long getLastModified(final Asset asset) {
if (asset.getLastModified() > 0L) {
return asset.getLastModified();
} else {
final Object obj = asset.getMetadata().get(JcrConstants.JCR_LASTMODIFIED);
if (obj != null && obj instanceof Date) {
return ((Date) obj).getTime();
} else {
return 0L;
}
}
}
/**
* Get the last modified date for a Page.
*
* @param page
* @return
*/
private static long getLastModified(final Page page) {
if (page.getLastModified() != null) {
return page.getLastModified().getTimeInMillis();
} else {
final ValueMap properties = page.getProperties();
Date lastModified = properties.get(NameConstants.PN_PAGE_LAST_MOD, Date.class);
if (lastModified != null) {
return lastModified.getTime();
} else {
return 0L;
}
}
}
/**
* Get the last modified date for a generic resource.
*
* @param resource
* @return
*/
private static long getLastModified(final Resource resource) {
final ValueMap properties = resource.adaptTo(ValueMap.class);
final Date cqLastModified = properties.get(NameConstants.PN_PAGE_LAST_MOD, Date.class);
if (cqLastModified != null) {
return cqLastModified.getTime();
}
final Date jcrLastModified = properties.get(JcrConstants.JCR_LASTMODIFIED, Date.class);
if (jcrLastModified != null) {
return jcrLastModified.getTime();
}
return 0L;
}
/**
* Get the size of the Asset (the original rendition).
*
* @param asset
* @return
*/
private static long getSize(final Asset asset) {
final Rendition original = asset.getOriginal();
if (original == null) {
return 0;
}
return original.getSize();
}
/**
* Get the timestamp for the last change to the thumbnail.
*
* @param asset
* @return
*/
private static long getCK(final Asset asset) {
try {
Resource resource = asset.getRendition(DAM_THUMBNAIL);
Resource contentResource = resource.getChild(JcrConstants.JCR_CONTENT);
ValueMap properties = contentResource.adaptTo(ValueMap.class);
return properties.get(JcrConstants.JCR_LASTMODIFIED, 0L) / ONE_MILLION;
} catch (Exception ex) {
return 0L;
}
}
/**
* Gets the Page object corresponding the with the resource.
* Will resolve to a Page if the result is a cq:Page or a cq:Page's jcr:content node.
*
* @param resource The resource to covert to a Page
* @return a Page if the resource is Page like (cq:Page or a cq:Page's jcr:content node), else null
*/
private static Page getPage(final Resource resource) {
if (resource == null) {
return null;
}
// If resource is a cq:Page node; then return the Page
if (resource.adaptTo(Page.class) != null) {
return resource.adaptTo(Page.class);
}
// If the resource is a cq:Page/jcr:content node, then return the cq:Page page
if (StringUtils.equals(resource.getName(), JcrConstants.JCR_CONTENT)) {
final Resource parent = resource.getParent();
if (parent != null) {
return parent.adaptTo(Page.class);
}
}
return null;
}
}