| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.sling.sample.slingshot.ratings.impl; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.sling.api.resource.ModifiableValueMap; |
| import org.apache.sling.api.resource.PersistenceException; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.apache.sling.api.resource.ResourceUtil; |
| import org.apache.sling.api.resource.ValueMap; |
| import org.apache.sling.sample.slingshot.SlingshotConstants; |
| import org.apache.sling.sample.slingshot.SlingshotUtil; |
| import org.apache.sling.sample.slingshot.ratings.RatingsService; |
| import org.apache.sling.sample.slingshot.ratings.RatingsUtil; |
| import org.osgi.service.component.annotations.Component; |
| |
| /** |
| * Implementation of the ratings service |
| */ |
| @Component(service=RatingsService.class) |
| public class RatingsServiceImpl implements RatingsService { |
| |
| /** The resource type for the rating holder. */ |
| public static final String RESOURCETYPE_RATINGS = "sling:Folder"; |
| |
| /** |
| * @see org.apache.sling.sample.slingshot.ratings.RatingsService#getRatingsResourcePath(org.apache.sling.api.resource.Resource) |
| */ |
| @Override |
| public String getRatingsResourcePath(final Resource resource) { |
| final String contentPath = SlingshotUtil.getContentPath(resource); |
| if ( contentPath != null ) { |
| final String fullPath = SlingshotConstants.APP_ROOT_PATH |
| + "/users/" + SlingshotUtil.getUserId(resource) |
| + "/ugc/ratings" + contentPath; |
| return fullPath; |
| } |
| return null; |
| } |
| |
| /** |
| * @see org.apache.sling.sample.slingshot.ratings.RatingsService#getRating(org.apache.sling.api.resource.Resource) |
| */ |
| @Override |
| public double getRating(final Resource resource) { |
| final String fullPath = getRatingsResourcePath(resource); |
| float rating = 0; |
| if ( fullPath != null ) { |
| final Resource ratingsResource = resource.getChild(fullPath); |
| if ( ratingsResource != null ) { |
| int count = 0; |
| for(final Resource r : ratingsResource.getChildren()) { |
| final ValueMap vm = r.getValueMap(); |
| final double current = vm.get(RatingsUtil.PROPERTY_RATING, 0.0); |
| rating += current; |
| count++; |
| } |
| if ( count > 0 ) { |
| rating = rating / count; |
| } |
| } |
| } |
| return rating; |
| } |
| |
| /** |
| * @see org.apache.sling.sample.slingshot.ratings.RatingsService#getRating(org.apache.sling.api.resource.Resource, java.lang.String) |
| */ |
| @Override |
| public double getRating(final Resource resource, final String userId) { |
| final String fullPath = getRatingsResourcePath(resource); |
| double rating = 0; |
| |
| final Resource r = resource.getResourceResolver().getResource(fullPath + "/" + userId); |
| if ( r != null ) { |
| final ValueMap vm = r.getValueMap(); |
| rating = vm.get(RatingsUtil.PROPERTY_RATING, 0.0); |
| } |
| return rating; |
| } |
| |
| /** |
| * @see org.apache.sling.sample.slingshot.ratings.RatingsService#setRating(org.apache.sling.api.resource.Resource, java.lang.String, int) |
| */ |
| @Override |
| public void setRating(final Resource resource, final String userId, final double rating) |
| throws PersistenceException { |
| final String ratingsPath = getRatingsResourcePath(resource) ; |
| |
| final Map<String, Object> props = new HashMap<String, Object>(); |
| props.put(ResourceResolver.PROPERTY_RESOURCE_TYPE, RESOURCETYPE_RATINGS); |
| final Resource ratingsResource = ResourceUtil.getOrCreateResource(resource.getResourceResolver(), |
| ratingsPath, props, null, true); |
| |
| final Resource ratingRsrc = resource.getResourceResolver().getResource(ratingsResource, userId); |
| if ( ratingRsrc == null ) { |
| props.clear(); |
| props.put(ResourceResolver.PROPERTY_RESOURCE_TYPE, RatingsUtil.RESOURCETYPE_RATING); |
| props.put(RatingsUtil.PROPERTY_RATING, String.valueOf(rating)); |
| |
| resource.getResourceResolver().create(ratingsResource, userId, props); |
| } else { |
| final ModifiableValueMap mvm = ratingRsrc.adaptTo(ModifiableValueMap.class); |
| mvm.put(RatingsUtil.PROPERTY_RATING, String.valueOf(rating)); |
| } |
| resource.getResourceResolver().commit(); |
| } |
| } |