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/*
 * ============LICENSE_START==========================================
 * ONAP Portal SDK
 * ===================================================================
 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * ===================================================================
 *
 * Unless otherwise specified, all software contained herein is licensed
 * under the Apache License, Version 2.0 (the "License");
 * you may not use this software 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.
 *
 * Unless otherwise specified, all documentation contained herein is licensed
 * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
 * you may not use this documentation except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             https://creativecommons.org/licenses/by/4.0/
 *
 * Unless required by applicable law or agreed to in writing, documentation
 * 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.
 *
 * ============LICENSE_END============================================
 *
 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 */
package org.onap.portalsdk.analytics.util.upgrade;
 
import java.sql.Connection;
import java.util.Iterator;
import java.util.StringTokenizer;

import javax.servlet.http.HttpServletRequest;

import org.onap.portalsdk.analytics.model.ReportLoader;
import org.onap.portalsdk.analytics.model.base.ReportWrapper;
import org.onap.portalsdk.analytics.model.definition.ReportDefinition;
import org.onap.portalsdk.analytics.system.AppUtils;
import org.onap.portalsdk.analytics.system.DbUtils;
import org.onap.portalsdk.analytics.util.DataSet;
import org.onap.portalsdk.analytics.xmlobj.DataColumnType;

public class SystemUpgrade extends org.onap.portalsdk.analytics.RaptorObject {
        private static final String upgradeFromVersion = "1.x";
        private static final String upgradeToVersion   = "2.0";

/*  This script upgrades the Raptor database to a newer version
        Make sure you execute the "upgrade_v0_to_v1_0_before_java.sql" before running this
        and "upgrade_v0_to_v1_0_after_java.sql" afterwards 
        
        URL example: http://localhost:8082/databank/dispatcher?action=raptor&r_action=system_upgrade
*/
        public static String upgradeDB(HttpServletRequest request) {
                request.setAttribute("system_message", "System upgrade disabled");
                return "raptor/blank.jsp";
                
/*              try {
                        if(upgradeFromVersion.equals("1.x")&&upgradeToVersion.equals("2.0"))
                                upgrateFromV1ToV2_0(request);
                        else
                                throw new RuntimeException("Invalid version");
                                
                        return "raptor/blank.jsp";
                } catch(Exception e) {
                        return (new ErrorHandler()).processFatalError(request, e);
                }*/
        }   // upgradeDB

        private static void upgrateFromV1ToV2_0(HttpServletRequest request) throws Exception {
                StringBuffer log = new StringBuffer();
                log.append("Starting upgrade...<br>\n");
                
                DataSet ds = DbUtils.executeQuery("SELECT cr.rep_id, cr.sched_mailto_user_ids FROM cr_report cr");
                for(int i=0; i<ds.getRowCount(); i++) {
                        String repId = ds.getString(i, 0);
                        log.append("<li>Processing report ["+repId+"]: ");
                        
                        Connection connection = DbUtils.startTransaction();
                        String emailIds = nvls(ds.getString(i, 1));
                        if(emailIds.length()>0)
                                try {
                                        log.append("Converting emails ");
                                        StringTokenizer st = new StringTokenizer(emailIds, ",");
                                        while(st.hasMoreTokens()) {
                                                String userId = nvls(st.nextToken());
                                                log.append(userId);
                                                if(userId.length()>0)
                                                        DbUtils.executeUpdate(connection, "INSERT INTO cr_report_schedule_users (rep_id, user_id) VALUES ("+repId+", "+userId+")");
                                                log.append("-success, ");
                                        }   // while
                                        log.append(" <font color=green>COMPLETED</font>; ");
                                } catch(Exception e) {
                                        log.append("-<font color=red>FAILED</font>; ");
                                }
                        
                        String reportXML = ReportLoader.loadCustomReportXML(repId);
                        ReportDefinition rdef = ReportDefinition.unmarshal(reportXML, repId, request);
                        ReportWrapper rw = new ReportWrapper(rdef.cloneCustomReport(), repId, null, null, null, null, null, null, false);
                        
                        for(Iterator iter=rw.getAllColumns().iterator(); iter.hasNext(); ) {
                                DataColumnType col = (DataColumnType) iter.next();
                                String drillDownURL = nvls(col.getDrillDownURL());
                                if(drillDownURL.startsWith("dispatcher?action=custrep.run&c_master=")) {
                                        drillDownURL = AppUtils.getReportExecuteActionURL()+drillDownURL.substring("dispatcher?action=custrep.run&c_master=".length());
                                        log.append("Drill-down processed; ");
                                        col.setDrillDownURL(drillDownURL);
                                }
                        }   // for
                        
                        reportXML = rw.marshal();

                        /*PrintWriter xmlOut = new PrintWriter(new BufferedWriter(new FileWriter(new File(AppUtils.getTempFolderPath()+AppUtils.getUserID(request)))));
                        xmlOut.println(reportXML);
                        xmlOut.close();*/

                        try {
                                ReportLoader.updateCustomReportRec(connection, rw, reportXML);
                                DbUtils.commitTransaction(connection);
                                log.append("<font color=green>REPORT UPDATED</font></li>\n");
                        } catch(Exception e) {
                                log.append("<font color=red>REPORT UPDATE FAILED</font></li>\n");
                                DbUtils.rollbackTransaction(connection);
                        } finally {
                DbUtils.clearConnection(connection);         
            }
                }   // for
                
                log.append("<br>\nSystem upgrade successfully completed...<br>\n");
                request.setAttribute("system_message", log.toString());
        }   // upgrateFromV1ToV2_0

}       // SystemUpgrade