org.sonar.server.platform.monitoring.DatabaseMonitor.java Source code

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Here is the source code for org.sonar.server.platform.monitoring.DatabaseMonitor.java

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/*
 * SonarQube
 * Copyright (C) 2009-2017 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.platform.monitoring;

import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.util.LinkedHashMap;
import java.util.Map;
import org.apache.commons.dbcp.BasicDataSource;
import org.sonar.db.DbClient;
import org.sonar.db.DbSession;
import org.sonar.server.platform.db.migration.version.DatabaseVersion;

/**
 * Information about database and connection pool
 */
public class DatabaseMonitor extends BaseMonitorMBean implements DatabaseMonitorMBean {

    private final DatabaseVersion dbVersion;
    private final DbClient dbClient;

    public DatabaseMonitor(DatabaseVersion dbVersion, DbClient dbClient) {
        this.dbVersion = dbVersion;
        this.dbClient = dbClient;
    }

    @Override
    public String name() {
        return "Database";
    }

    @Override
    public String getMigrationStatus() {
        return dbVersion.getStatus().name();
    }

    @Override
    public int getPoolActiveConnections() {
        return commonsDbcp().getNumActive();
    }

    @Override
    public int getPoolMaxActiveConnections() {
        return commonsDbcp().getMaxActive();
    }

    @Override
    public int getPoolIdleConnections() {
        return commonsDbcp().getNumIdle();
    }

    @Override
    public int getPoolMaxIdleConnections() {
        return commonsDbcp().getMaxIdle();
    }

    @Override
    public int getPoolMinIdleConnections() {
        return commonsDbcp().getMinIdle();
    }

    @Override
    public int getPoolInitialSize() {
        return commonsDbcp().getInitialSize();
    }

    @Override
    public long getPoolMaxWaitMillis() {
        return commonsDbcp().getMaxWait();
    }

    @Override
    public boolean getPoolRemoveAbandoned() {
        return commonsDbcp().getRemoveAbandoned();
    }

    @Override
    public int getPoolRemoveAbandonedTimeoutSeconds() {
        return commonsDbcp().getRemoveAbandonedTimeout();
    }

    @Override
    public Map<String, Object> attributes() {
        Map<String, Object> attributes = new LinkedHashMap<>();
        completeDbAttributes(attributes);
        completePoolAttributes(attributes);
        return attributes;
    }

    private void completePoolAttributes(Map<String, Object> attributes) {
        attributes.put("Pool Active Connections", getPoolActiveConnections());
        attributes.put("Pool Max Connections", getPoolMaxActiveConnections());
        attributes.put("Pool Initial Size", getPoolInitialSize());
        attributes.put("Pool Idle Connections", getPoolIdleConnections());
        attributes.put("Pool Min Idle Connections", getPoolMinIdleConnections());
        attributes.put("Pool Max Idle Connections", getPoolMaxIdleConnections());
        attributes.put("Pool Max Wait (ms)", getPoolMaxWaitMillis());
        attributes.put("Pool Remove Abandoned", getPoolRemoveAbandoned());
        attributes.put("Pool Remove Abandoned Timeout (seconds)", getPoolRemoveAbandonedTimeoutSeconds());
    }

    private BasicDataSource commonsDbcp() {
        return (BasicDataSource) dbClient.getDatabase().getDataSource();
    }

    private void completeDbAttributes(Map<String, Object> attributes) {
        try (DbSession dbSession = dbClient.openSession(false); Connection connection = dbSession.getConnection()) {
            DatabaseMetaData metadata = connection.getMetaData();
            attributes.put("Database", metadata.getDatabaseProductName());
            attributes.put("Database Version", metadata.getDatabaseProductVersion());
            attributes.put("Username", metadata.getUserName());
            attributes.put("URL", metadata.getURL());
            attributes.put("Driver", metadata.getDriverName());
            attributes.put("Driver Version", metadata.getDriverVersion());
            attributes.put("Version Status", getMigrationStatus());
        } catch (SQLException e) {
            throw new IllegalStateException("Fail to get DB metadata", e);
        }
    }
}