org.sakaiproject.nakamura.message.search.MessageSparseSearchPropertyProvider.java Source code

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Here is the source code for org.sakaiproject.nakamura.message.search.MessageSparseSearchPropertyProvider.java

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/**
 * Licensed to the Sakai Foundation (SF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The SF 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.sakaiproject.nakamura.message.search;

import org.apache.commons.lang.StringUtils;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Properties;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.request.RequestParameter;
import org.apache.solr.client.solrj.util.ClientUtils;
import org.sakaiproject.nakamura.api.lite.Session;
import org.sakaiproject.nakamura.api.lite.StorageClientUtils;
import org.sakaiproject.nakamura.api.message.LiteMessagingService;
import org.sakaiproject.nakamura.api.message.MessageConstants;
import org.sakaiproject.nakamura.api.search.solr.SolrSearchPropertyProvider;

import java.util.Map;

/**
 * Provides properties to process the search
 */
@Component(immediate = true, label = "MessageSearchPropertyProvider", description = "Provides some message search properties.")
@Service
@Properties(value = { @Property(name = "service.vendor", value = "The Sakai Foundation"),
        @Property(name = "service.description", value = "Provides some message search properties."),
        @Property(name = "sakai.search.provider", value = "MessageSparse") })
public class MessageSparseSearchPropertyProvider implements SolrSearchPropertyProvider {

    @Reference
    LiteMessagingService messagingService;

    /**
     * {@inheritDoc}
     *
     * @see org.sakaiproject.nakamura.api.search.SearchPropertyProvider#loadUserProperties(org.apache.sling.api.SlingHttpServletRequest,
     *      java.util.Map)
     */
    public void loadUserProperties(SlingHttpServletRequest request, Map<String, String> propertiesMap) {
        String user = request.getRemoteUser();
        Session session = StorageClientUtils
                .adaptToSession(request.getResourceResolver().adaptTo(javax.jcr.Session.class));
        final String resourceType = request.getResource().getResourceType();
        final boolean solrSearchType = "sakai/solr-search".equals(resourceType);
        String fullPathToStore = ClientUtils.escapeQueryChars(messagingService.getFullPathToStore(user, session));
        propertiesMap.put(MessageConstants.SEARCH_PROP_MESSAGESTORE, fullPathToStore);

        RequestParameter address = request.getRequestParameter("address");
        if (address != null && !address.getString().equals("")) {
            // resolve the address by finding the authorizables.
            String addressString = address.getString();
            String storePath = messagingService.getFullPathToStore(addressString, session);
            propertiesMap.put(MessageConstants.SEARCH_PROP_MESSAGESTORE,
                    ClientUtils.escapeQueryChars(storePath) + "*");
        }

        String[] categoryStrings = request.getParameterValues("category");
        if (categoryStrings != null && !categoryStrings[0].equals("") && !categoryStrings[0].equals("*")) {
            final StringBuilder categoryClauseBuffer = new StringBuilder();
            if (solrSearchType) {
                categoryClauseBuffer.append(" AND category:(");
            } else {
                categoryClauseBuffer.append(" AND sakai\\:category:(");
            }
            String[] commaSeparatedTerms = categoryStrings[0].split(",");
            categoryClauseBuffer.append(commaSeparatedTerms[0]);
            for (int h = 0; h < categoryStrings.length; h++) {
                commaSeparatedTerms = categoryStrings[h].split(",");
                int starter = 0;
                if (h == 0) {
                    starter++;
                }
                for (int i = starter; i < commaSeparatedTerms.length; i++) {
                    categoryClauseBuffer.append(" OR ").append(commaSeparatedTerms[i]);
                }
            }
            categoryClauseBuffer.append(")");
            propertiesMap.put("_categoryClause", categoryClauseBuffer.toString());
        } else {
            propertiesMap.put("_categoryClause", "");
        }

        RequestParameter usersParam = request.getRequestParameter("_from");
        if (usersParam != null && !usersParam.getString().equals("")) {
            String[] users = StringUtils.split(usersParam.getString(), ',');

            StringBuilder solrQuery = new StringBuilder();

            //build solr query
            solrQuery.append("from:(");
            for (int i = 0; i < users.length; i++) {
                solrQuery.append('"').append(ClientUtils.escapeQueryChars(users[i])).append('"');

                if (i < users.length - 1) {
                    solrQuery.append(" OR ");
                }
            }
            solrQuery.append(")");

            propertiesMap.put("_from", solrQuery.toString());
        }
    }
}