ProxoolManagedDataSource.java

package com.cloudhopper.commons.sql.proxool;

/*
 * #%L
 * ch-commons-sql
 * %%
 * Copyright (C) 2012 - 2013 Cloudhopper by Twitter
 * %%
 * 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%
 */

import com.cloudhopper.commons.sql.DataSourceConfiguration;
import com.cloudhopper.commons.sql.ManagedDataSource;
import com.cloudhopper.commons.sql.adapter.BasicDataSource;
import com.cloudhopper.commons.sql.adapter.DataSourceAdapter;
import org.logicalcobwebs.proxool.ProxoolException;
import org.logicalcobwebs.proxool.ProxoolFacade;
import org.logicalcobwebs.proxool.admin.SnapshotIF;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * An implementation of a Proxool "Managed" DataSource.
 * 
 * @author joelauer
 */
public class ProxoolManagedDataSource extends ManagedDataSource {

    private static final Logger logger = LoggerFactory.getLogger(ProxoolManagedDataSource.class);

    public ProxoolManagedDataSource(DataSourceAdapter adapter, DataSourceConfiguration config, BasicDataSource ds) {
        super(adapter, config, ds);
    }

    public Integer getIdleConnectionCount() {
        try {
            SnapshotIF snapshot = ProxoolFacade.getSnapshot(getConfiguration().getName());
            return snapshot.getAvailableConnectionCount();
        } catch (ProxoolException e) {
            logger.error("", e);
            return null;
        }
    }

    public Integer getBusyConnectionCount() {
        try {
            SnapshotIF snapshot = ProxoolFacade.getSnapshot(getConfiguration().getName());
            return snapshot.getActiveConnectionCount();
        } catch (ProxoolException e) {
            logger.error("", e);
            return null;
        }
    }

    public Integer getConnectionCount() {
        try {
            SnapshotIF snapshot = ProxoolFacade.getSnapshot(getConfiguration().getName());
            return (int)snapshot.getConnectionCount();
        } catch (ProxoolException e) {
            logger.error("", e);
            return null;
        }
    }

}