com.codio.collab.core.DocumentFactory.java Source code

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Here is the source code for com.codio.collab.core.DocumentFactory.java

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/**
 * Copyright Suchkov Dmitrii
 *
 * 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.
 */
package com.codio.collab.core;

import com.codio.collab.core.redis.RedisDriver;
import com.codio.collab.core.types.CollabDocument;
import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

public class DocumentFactory {

    private static final Logger LOG = LoggerFactory.getLogger(DocumentFactory.class);

    private RedisDriver redisDriver;
    private ConcurrentMap<String, CollabDocument> documents = new ConcurrentHashMap<String, CollabDocument>();
    private ConcurrentMap<String, DateTime> accessTime = new ConcurrentHashMap<String, DateTime>();

    public DocumentFactory() {

        class DelayReconnectTask extends TimerTask {

            public DelayReconnectTask() {
            }

            @Override
            public void run() {
                try {
                    List<String> cleanup = new ArrayList<String>();
                    for (ConcurrentMap.Entry<String, DateTime> entry : accessTime.entrySet()) {
                        if (entry.getValue().isBeforeNow()) {
                            final String key = entry.getKey();
                            LOG.debug("cleanup {}", key);
                            documents.remove(key);
                            cleanup.add(key);
                        }
                    }
                    for (String id : cleanup) {
                        accessTime.remove(id);
                    }
                } catch (Exception ex) {

                }
            }
        }

        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new DelayReconnectTask(), 1000, 60000);

    }

    private String docId(final String collection, final String document) {
        return collection + "/" + document;
    }

    public CollabDocument getDocument(final String collection, final String document) {
        final String docId = docId(collection, document);
        accessTime.put(docId, DateTime.now().plusMinutes(10));
        if (documents.containsKey(docId)) {
            return documents.get(docId);
        }
        CollabDocument doc = getRedisDriver().getDocument(collection, document);
        documents.put(docId, doc);
        return doc;
    }

    public RedisDriver getRedisDriver() {
        return redisDriver;
    }

    public void setRedisDriver(RedisDriver redisDriver) {
        this.redisDriver = redisDriver;
    }
}