fr.cnes.sitools.datasource.jdbc.DataSourceMonitoringResource.java Source code

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Here is the source code for fr.cnes.sitools.datasource.jdbc.DataSourceMonitoringResource.java

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/*******************************************************************************
* Copyright 2010-2016 CNES - CENTRE NATIONAL d'ETUDES SPATIALES
*
* This file is part of SITools2.
*
* SITools2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* SITools2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with SITools2.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package fr.cnes.sitools.datasource.jdbc;

import java.util.ArrayList;
import java.util.logging.Level;

import javax.sql.DataSource;

import org.apache.commons.dbcp.BasicDataSource;
import org.restlet.data.Status;
import org.restlet.ext.wadl.MethodInfo;
import org.restlet.ext.wadl.ParameterInfo;
import org.restlet.ext.wadl.ParameterStyle;
import org.restlet.representation.Representation;
import org.restlet.representation.Variant;
import org.restlet.resource.Get;
import org.restlet.resource.ResourceException;

import fr.cnes.sitools.common.model.Response;
import fr.cnes.sitools.datasource.jdbc.business.SitoolsSQLDataSource;
import fr.cnes.sitools.datasource.jdbc.business.SitoolsSQLDataSourceFactory;

/**
 * Current data source status (if enabled)
 * 
 * @author jp.boignard (AKKA Technologies)
 * 
 */
public final class DataSourceMonitoringResource extends AbstractDataSourceResource {

    @Override
    public void sitoolsDescribe() {
        setName("DataSourceMonitoringResource");
        setDescription("Resource for monitoring actived datasource");
    }

    @Override
    @Get
    public Representation get(Variant variant) {
        Response response = null;
        ArrayList<String> messages = new ArrayList<String>();
        messages.add("JDBC DataSource Monitoring");
        try {

            if (getDatasourceId() != null) {
                SitoolsSQLDataSource sds = SitoolsSQLDataSourceFactory.getDataSource(getDatasourceId());
                traceStatus(sds, messages);
            } else {
                ArrayList<SitoolsSQLDataSource> dataSources = SitoolsSQLDataSourceFactory.getAll();
                for (SitoolsSQLDataSource sitoolsDataSource : dataSources) {
                    traceStatus(sitoolsDataSource, messages);

                }
            }
            response = new Response(true, messages, String.class, "statusInfo");
            return getRepresentation(response, variant);
        }

        catch (ResourceException e) {
            getLogger().log(Level.INFO, null, e);
            throw e;
        } catch (Exception e) {
            getLogger().log(Level.SEVERE, null, e);
            throw new ResourceException(Status.SERVER_ERROR_INTERNAL, e);
        }
    }

    /**
     * Describe the GET method
     * 
     * @param info
     *          WADL method information
     * @param path 
     *        url attachment of the resource
     */
    public void describeGet(MethodInfo info, String path) {
        if (path.endsWith("{datasourceId}")) {
            info.setDocumentation("GET " + path + " : Monitors one JDBC datasource.");
        } else {
            info.setDocumentation("GET " + path + " : Monitors all JDBC datasource(s).");
        }

        // info.setDocumentation("Method to monitor one/all JDBC datasource(s).");
        this.addStandardGetRequestInfo(info);
        ParameterInfo param = new ParameterInfo("datasourceId", false, "xs:string", ParameterStyle.TEMPLATE,
                "datasourceId to retrieve a single datasource definition.");
        info.getRequest().getParameters().add(param);
        this.addStandardResponseInfo(info);
        this.addStandardInternalServerErrorInfo(info);
    }

    /**
     * Trace informations for a sitoolsDataSource
     * 
     * @param sitoolsDataSource
     *          SitoolsDataSource
     * @param messages
     *          ArrayList<String> messages
     */
    private void traceStatus(SitoolsSQLDataSource sitoolsDataSource, ArrayList<String> messages) {
        DataSource concreteDs = sitoolsDataSource.getDs();
        if ((concreteDs != null) && (concreteDs instanceof BasicDataSource)) {
            BasicDataSource bds = (BasicDataSource) concreteDs;
            messages.add("--------------------------------------------------");
            messages.add("Url: " + bds.getUrl());
            messages.add("User: " + bds.getUsername());
            messages.add("DefaultCatalog: " + bds.getDefaultCatalog());
            messages.add("InitialSize: " + bds.getInitialSize());
            messages.add("NumActive: " + bds.getNumActive());
            messages.add("MaxActive: " + bds.getMaxActive());
            messages.add("MaxIdl: " + bds.getMaxIdle());
            messages.add("MinIdl: " + bds.getMinIdle());
            messages.add("NumIdle: " + bds.getNumIdle());
        }

    }

}