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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.dbgen;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.apache.tinkerpop.gremlin.structure.io.IoCore;
import org.apache.tinkerpop.gremlin.structure.io.graphson.LegacyGraphSONReader;
import org.onap.aai.dbmap.AAIGraph;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.logging.ErrorLogHelper;
import org.onap.aai.util.AAIConfig;
import org.onap.aai.util.AAIConstants;
import org.onap.aai.util.AAISystemExitUtil;
import org.onap.aai.util.FormatDate;
import com.att.eelf.configuration.Configuration;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.janusgraph.core.JanusGraph;
import org.janusgraph.core.util.JanusGraphCleanup;
public class DataSnapshot {
private static final String OLD_SNAPSHOT_FILE_ = "oldSnapshotFile ";
private static final String _COULD_NOT_BE_FOUND = " could not be found.";
private static final String _COULD_NOT_BE_READ = " could not be read.";
private static final String _HAD_NO_DATA = " had no data.";
/**
* The main method.
*
* @param args
* the arguments
*/
public static void main(String[] args) {
// Set the logging file properties to be used by EELFManager
System.setProperty("aai.service.name", DataSnapshot.class.getSimpleName());
Properties props = System.getProperties();
props.setProperty(Configuration.PROPERTY_LOGGING_FILE_NAME, AAIConstants.AAI_DATA_SNAPSHOT_LOGBACK_PROPS);
props.setProperty(Configuration.PROPERTY_LOGGING_FILE_PATH, AAIConstants.AAI_HOME_ETC_APP_PROPERTIES);
Boolean dbClearFlag = false;
JanusGraph graph = null;
String command = "JUST_TAKE_SNAPSHOT"; // This is the default
String oldSnapshotFileName = "";
if (args.length == 1) {
command = args[0];
}
if (args.length == 2) {
// If they pass in a RELOAD_ENTIRE_DB argument, then we will be
// reloading the database
// from the filename passed in -which will be expected to be found
// in our snapshot directory.
command = args[0];
oldSnapshotFileName = args[1];
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
AAIConfig.init();
ErrorLogHelper.loadProperties();
System.out.println("Command = " + command + ", oldSnapshotFileName = " + oldSnapshotFileName);
String targetDir = AAIConstants.AAI_HOME + AAIConstants.AAI_FILESEP + "logs" + AAIConstants.AAI_FILESEP + "data" + AAIConstants.AAI_FILESEP + "dataSnapshots";
// Make sure the dataSnapshots directory is there
new File(targetDir).mkdirs();
System.out.println(" ---- NOTE --- about to open graph (takes a little while)\n");
graph = AAIGraph.getInstance().getGraph();
if (graph == null) {
String emsg = "Not able to get a graph object in DataSnapshot.java\n";
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
if ("JUST_TAKE_SNAPSHOT".equals(command)) {
// ------------------------------------------
// They just want to take a snapshot.
// ------------------------------------------
FormatDate fd = new FormatDate("yyyyMMddHHmm", "GMT");
String dteStr = fd.getDateTime();
String newSnapshotOutFname = targetDir + AAIConstants.AAI_FILESEP + "dataSnapshot.graphSON." + dteStr;
graph.io(IoCore.graphson()).writeGraph(newSnapshotOutFname);
System.out.println("Snapshot written to " + newSnapshotOutFname);
/****
* Don't really want to do this every hour ************** int
* vCount = 0; Iterator vIt =
* graph.query().vertices().iterator(); while( vIt.hasNext() ){
* vCount++; vIt.next(); } System.out.println(
* "A little after taking the snapshot, we see: " + vCount +
* " vertices in the db.");
************/
} else if ("CLEAR_ENTIRE_DATABASE".equals(command)) {
// ------------------------------------------------------------------
// They are calling this to clear the db before re-loading it
// later
// ------------------------------------------------------------------
// First - make sure the backup file they will be using can be
// found and has data
if (oldSnapshotFileName.isEmpty()) {
String emsg = "No oldSnapshotFileName passed to DataSnapshot.";
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
String oldSnapshotFullFname = targetDir + AAIConstants.AAI_FILESEP + oldSnapshotFileName;
File f = new File(oldSnapshotFullFname);
if (!f.exists()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_FOUND;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (!f.canRead()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_READ;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (f.length() == 0) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _HAD_NO_DATA;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
System.out.println("\n>>> WARNING <<<< ");
System.out.println(">>> All data and schema in this database will be removed at this point. <<<");
System.out.println(">>> Processing will begin in 5 seconds. <<<");
System.out.println(">>> WARNING <<<< ");
try {
// Give them a chance to back out of this
Thread.sleep(5000);
} catch (java.lang.InterruptedException ie) {
System.out.println(" DB Clearing has been aborted. ");
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
System.out.println(" Begin clearing out old data. ");
graph.close();
JanusGraphCleanup.clear(graph);
System.out.println(" Done clearing data. ");
System.out.println(">>> IMPORTANT - NOTE >>> you need to run the SchemaGenerator (use GenTester) before ");
System.out.println(" reloading data or the data will be put in without indexes. ");
dbClearFlag = true;
} else if ("RELOAD_LEGACY_DATA".equals(command)) {
// -------------------------------------------------------------------
// They want to restore the database from an old snapshot file
// -------------------------------------------------------------------
if (oldSnapshotFileName.isEmpty()) {
String emsg = "No oldSnapshotFileName passed to DataSnapshot when RELOAD_LEGACY_DATA used.";
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
String oldSnapshotFullFname = targetDir + AAIConstants.AAI_FILESEP + oldSnapshotFileName;
File f = new File(oldSnapshotFullFname);
if (!f.exists()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_FOUND;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (!f.canRead()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_READ;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (f.length() == 0) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _HAD_NO_DATA;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
System.out.println("We will load data IN from the file = " + oldSnapshotFullFname);
System.out.println(" Begin reloading JanusGraph 0.5 data. ");
LegacyGraphSONReader lgr = LegacyGraphSONReader.build().create();
InputStream is = new FileInputStream(oldSnapshotFullFname);
lgr.readGraph(is, graph);
System.out.println("Completed the inputGraph command, now try to commit()... ");
graph.tx().commit();
System.out.println("Completed reloading JanusGraph 0.5 data.");
long vCount = graph.traversal().V().count().next();
System.out.println("A little after repopulating from an old snapshot, we see: " + vCount + " vertices in the db.");
} else if (command.equals("RELOAD_DATA")) {
// -------------------------------------------------------------------
// They want to restore the database from an old snapshot file
// -------------------------------------------------------------------
if (oldSnapshotFileName.equals("")) {
String emsg = "No oldSnapshotFileName passed to DataSnapshot when RELOAD_DATA used.";
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
String oldSnapshotFullFname = targetDir + AAIConstants.AAI_FILESEP + oldSnapshotFileName;
File f = new File(oldSnapshotFullFname);
if (!f.exists()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_FOUND;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (!f.canRead()) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _COULD_NOT_BE_READ;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
} else if (f.length() == 0) {
String emsg = OLD_SNAPSHOT_FILE_ + oldSnapshotFullFname + _HAD_NO_DATA;
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
System.out.println("We will load data IN from the file = " + oldSnapshotFullFname);
System.out.println(" Begin reloading data. ");
graph.io(IoCore.graphson()).readGraph(oldSnapshotFullFname);
System.out.println("Completed the inputGraph command, now try to commit()... ");
graph.tx().commit();
System.out.println("Completed reloading data.");
long vCount = graph.traversal().V().count().next();
System.out.println("A little after repopulating from an old snapshot, we see: " + vCount + " vertices in the db.");
} else {
String emsg = "Bad command passed to DataSnapshot: [" + command + "]";
System.out.println(emsg);
AAISystemExitUtil.systemExitCloseAAIGraph(1);
}
} catch (AAIException e) {
ErrorLogHelper.logError("AAI_6128", e.getMessage());
} catch (Exception ex) {
ErrorLogHelper.logError("AAI_6128", ex.getMessage());
} finally {
if (!dbClearFlag && graph != null && graph.isOpen()) {
// Any changes that worked correctly should have already done
// thier commits.
graph.tx().rollback();
graph.close();
}
try {
baos.close();
} catch (IOException iox) {
}
}
AAISystemExitUtil.systemExitCloseAAIGraph(0);
}// End of main()
}
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