net.java.ao.builder.c3po.C3poDataSourceFactory Maven / Gradle / Ivy

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This is the full Active Objects library, if you don't know which one to use, you probably want this one.

There is a newer version: 6.1.1

package net.java.ao.builder.c3po;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import com.mchange.v2.c3p0.DataSources;
import net.java.ao.ActiveObjectsException;
import net.java.ao.Disposable;
import net.java.ao.DisposableDataSource;
import net.java.ao.builder.ClassUtils;
import net.java.ao.builder.DataSourceFactory;
import net.java.ao.builder.DelegatingDisposableDataSourceHandler;

import java.beans.PropertyVetoException;
import java.sql.Driver;
import java.sql.SQLException;

public class C3poDataSourceFactory implements DataSourceFactory {
    public DisposableDataSource getDataSource(Class driverClass, String url, String username, String password) {
        final ComboPooledDataSource cpds = new ComboPooledDataSource();
        try {
            cpds.setDriverClass(driverClass.getName());
        } catch (PropertyVetoException e) {
            throw new ActiveObjectsException(e);
        }
        cpds.setJdbcUrl(url);
        cpds.setUser(username);
        cpds.setPassword(password);

        return DelegatingDisposableDataSourceHandler.newInstance(cpds, new Disposable() {
            @Override
            public void dispose() {
                try {
                    DataSources.destroy(cpds);
                } catch (SQLException ignored) {
                    // ignored
                }
            }
        });
    }

    public static boolean isAvailable() {
        return ClassUtils.loadClass("com.mchange.v2.c3p0.ComboPooledDataSource") != null;
    }
}