org.sakaiproject.nakamura.personal.JCRPersonalTrackingStore.java Source code

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Here is the source code for org.sakaiproject.nakamura.personal.JCRPersonalTrackingStore.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.personal;

import org.apache.commons.codec.binary.Base64;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.jcr.api.SlingRepository;
import org.sakaiproject.nakamura.api.personal.PersonalTrackingStore;
import org.sakaiproject.nakamura.util.JcrUtils;

import java.math.BigDecimal;
import java.util.Calendar;
import java.util.UUID;

import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;

//@Component(immediate = true)
//@Service(value = PersonalTrackingStore.class)
public class JCRPersonalTrackingStore implements PersonalTrackingStore {

    @Reference
    private transient SlingRepository slingRepository;

    /**
     * {@inheritDoc}
     * 
     * @see org.sakaiproject.nakamura.api.personal.PersonalTrackingStore#recordActivity(java.lang.String,
     *      java.lang.String, java.lang.String, java.lang.String, java.util.Date)
     */
    public void recordActivity(String resourceId, String resourceType, String activityType, String userId,
            Calendar timestamp) {
        Session session = null;
        try {
            session = slingRepository.loginAdministrative(null);
            Node trackingNode = JcrUtils.deepGetOrCreateNode(session,
                    "/activity/" + resourceType + "/" + resourceId);
            if (!trackingNode.hasProperty("count")) {
                trackingNode.setProperty("count", 0);
            }
            if (!trackingNode.hasProperty("sling:resourceType")) {
                trackingNode.setProperty("sling:resourceType", "sakai/resource-activity");
            }
            String generatedNodeName = Base64.encodeBase64URLSafeString(asShorterByteArray(UUID.randomUUID()));
            Node activityNode = trackingNode.addNode(generatedNodeName);
            BigDecimal activityCount = trackingNode.getProperty("count").getDecimal();
            activityNode.setProperty("sling:resourceType", "sakai/resource-update");
            trackingNode.setProperty("count", activityCount.add(BigDecimal.ONE));
            activityNode.setProperty("resourceId", resourceId);
            activityNode.setProperty("resourcetype", resourceType);
            activityNode.setProperty("activitytype", activityType);
            activityNode.setProperty("timestamp", timestamp);
            activityNode.setProperty("userid", userId);
            if (session.hasPendingChanges()) {
                session.save();
            }
        } catch (RepositoryException e) {
            e.printStackTrace();
        } finally {
            if (session != null) {
                session.logout();
            }
        }

    }

    private byte[] asShorterByteArray(UUID uuid) {

        long msb = uuid.getMostSignificantBits();
        byte[] buffer = new byte[8];

        for (int i = 0; i < 8; i++) {
            buffer[i] = (byte) (msb >>> 8 * (7 - i));
        }

        return buffer;

    }

}