diff options
Diffstat (limited to 'mdbc-server')
| -rwxr-xr-x | mdbc-server/src/main/java/org/onap/music/mdbc/examples/MdbcTestMultiClient.java | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/examples/MdbcTestMultiClient.java b/mdbc-server/src/main/java/org/onap/music/mdbc/examples/MdbcTestMultiClient.java new file mode 100755 index 0000000..b2fb403 --- /dev/null +++ b/mdbc-server/src/main/java/org/onap/music/mdbc/examples/MdbcTestMultiClient.java @@ -0,0 +1,609 @@ +/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 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.music.mdbc.examples;
+
+import java.sql.*;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Random;
+
+public class MdbcTestMultiClient implements Runnable {
+ private static SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS");
+
+ private String connectionString = null;
+ private int threadId = -1;
+
+ private List<String> connectionStrings = new ArrayList<String>();
+ private static final String defaultConnection = "jdbc:avatica:remote:url=http://localhost:30000/test;serialization=protobuf";
+ private String lastName = "Lastname";
+ private int baseId = 700;
+ private int baseIdRange = 50;
+ private int maxCalls = 50;
+ private int maxTimeMs = 60000;
+ private int minDelayBetweenTestsMs = 1000;
+ private int additionalDelayBetweenTestsMs = 1000;
+ private boolean doDelete = true;
+ private boolean doUpdate = true;
+ private int connectionCloseChancePct = 50;
+ private int skipInitialSelectPct = 25;
+ private int selectInsteadOfUpdatePct = 25;
+
+ private boolean explainConnection = true;
+
+ public static class Employee {
+ public final int empid;
+ public String lastname;
+ public String firstname;
+ public String address;
+ public String city;
+
+ public Employee(int empid, String lastname, String firstname, String address, String city) {
+ super();
+ this.empid = empid;
+ this.lastname = lastname;
+ this.firstname = firstname;
+ this.address = address;
+ this.city = city;
+ }
+
+ public String getLastname() {
+ return lastname;
+ }
+
+ public void setLastname(String lastname) {
+ this.lastname = lastname;
+ }
+
+ public String getFirstname() {
+ return firstname;
+ }
+
+ public void setFirstname(String firstname) {
+ this.firstname = firstname;
+ }
+
+ public String getAddress() {
+ return address;
+ }
+
+ public void setAddress(String address) {
+ this.address = address;
+ }
+
+ public String getCity() {
+ return city;
+ }
+
+ public void setCity(String city) {
+ this.city = city;
+ }
+
+ public int getEmpid() {
+ return empid;
+ }
+
+ @Override
+ public String toString() {
+ return "Employee: " + empid + ", " + lastname + ", " + firstname + ", " + address + ", " + city;
+ }
+
+
+ }
+
+ public MdbcTestMultiClient(String[] args) {
+ char currState = (char)0, noState = (char)0;
+ for (String arg : args) {
+ if (currState==noState) {
+ switch (arg) {
+ case "-?":
+ case "--help":
+ showHelp();
+ break;
+ case "-c":
+ case "--connection":
+ currState = 'c';
+ break;
+ case "-n":
+ case "--name":
+ currState = 'n';
+ break;
+ case "-b":
+ case "--baseId":
+ currState = 'b';
+ break;
+ case "-r":
+ case "--baseRange":
+ currState = 'r';
+ break;
+ case "-m":
+ case "--maxCalls":
+ currState = 'm';
+ break;
+ case "-t":
+ case "--maxTime":
+ currState = 't';
+ break;
+ case "-d":
+ case "--minDelay":
+ currState = 'd';
+ break;
+ case "-a":
+ case "--addDelay":
+ currState = 'a';
+ break;
+ case "-u":
+ case "--update":
+ currState = 'u';
+ break;
+ case "-x":
+ case "--delete":
+ currState = 'x';
+ break;
+ case "-l":
+ case "--closeChance":
+ currState = 'l';
+ break;
+ case "-s":
+ case "--skipInitialSelect":
+ currState = 's';
+ break;
+ case "-i":
+ case "--selectNotUpdate":
+ currState = 'i';
+ break;
+ default:
+ System.out.println("Didn't understand switch " + arg);
+ }
+ } else {
+ try {
+ switch (currState) {
+ case 'c':
+ connectionStrings.add(arg);
+ break;
+ case 'n':
+ lastName = arg;
+ break;
+ case 'b':
+ baseId = Integer.parseInt(arg);
+ break;
+ case 'r':
+ baseIdRange = Integer.parseInt(arg);
+ break;
+ case 'm':
+ maxCalls = Integer.parseInt(arg);
+ break;
+ case 't':
+ maxTimeMs = Integer.parseInt(arg);
+ break;
+ case 'd':
+ minDelayBetweenTestsMs = Integer.parseInt(arg);
+ break;
+ case 'a':
+ additionalDelayBetweenTestsMs = Integer.parseInt(arg);
+ break;
+ case 'u':
+ doUpdate = arg.toUpperCase().startsWith("Y");
+ break;
+ case 'x':
+ doDelete = arg.toUpperCase().startsWith("Y");
+ break;
+ case 'l':
+ connectionCloseChancePct = Integer.parseInt(arg);
+ break;
+ case 's':
+ skipInitialSelectPct = Integer.parseInt(arg);
+ break;
+ case 'i':
+ selectInsteadOfUpdatePct = Integer.parseInt(arg);
+ break;
+ default:
+ System.out.println("Bad state " + currState + "????");
+ }
+ } catch (NumberFormatException e) {
+ System.out.println("Bad integer " + arg + " for switch " + currState);
+ }
+ currState = noState;
+ }
+ }
+ if (connectionStrings.isEmpty()) connectionStrings.add(defaultConnection);
+ }
+
+ private void showHelp() {
+ System.out.println(
+ "-?; --help: Show help\n" +
+ "-c; --connection: MDBC connection string, may appear multiple times\n" +
+ "-n; --name: Last name in persons table, default \"Lastname\"\n" +
+ "-b; --baseId: Base ID, default 700\n" +
+ "-r; --baseRange: Range of ID, default 50\n" +
+ "-m; --maxCalls: Max number of commits (each may be 1+ updates), default 50\n" +
+ "-t; --maxTime: Max time in ms test will run, default 60000\n" +
+ "-d; --minDelay: Min delay between tests in ms, default 1000\n" +
+ "-a; --addDelay: Max randomized additional delay between tests in ms, default 1000\n" +
+ "-u; --update: Generate update statements; default Y\n" +
+ "-x; --delete: Generate delete statements; default Y\n" +
+ "-l; --closeChance: Percent chance of closing connection after each commit, default 50\n" +
+ "-s; --skipInitialSelect: Percent chance of skipping each initial select in a transaction, default 25\n" +
+ "-i; --selectNotUpdate: Percent chance of each action in a transaction being a select instead of an update, default 25"
+ );
+
+ }
+
+ public MdbcTestMultiClient(MdbcTestMultiClient that, int i) {
+ this.connectionString = that.connectionStrings.get(i);
+ this.threadId = i;
+
+ this.lastName = that.lastName;
+ this.lastName = that.lastName;
+ this.baseId = that.baseId;
+ this.baseIdRange = that.baseIdRange;
+ this.maxCalls = that.maxCalls;
+ this.maxTimeMs = that.maxTimeMs;
+ this.minDelayBetweenTestsMs = that.minDelayBetweenTestsMs;
+ this.additionalDelayBetweenTestsMs = that.additionalDelayBetweenTestsMs;
+ this.doDelete = that.doDelete;
+ this.doUpdate = that.doUpdate;
+ this.connectionCloseChancePct = that.connectionCloseChancePct;
+ this.skipInitialSelectPct = that.skipInitialSelectPct;
+ this.selectInsteadOfUpdatePct = that.selectInsteadOfUpdatePct;
+ }
+
+ private static String[] tableNames = {"persons", "persons2"};
+
+ private void doTest(Connection connection, Random r) throws SQLException {
+ doLog("skipInitialSelectPct = " + skipInitialSelectPct + ", selectInsteadOfUpdatePct = " + selectInsteadOfUpdatePct);
+ HashMap<String, HashMap<Integer, Employee>> employeeMaps = new HashMap<String, HashMap<Integer, Employee>> ();
+// HashMap<Integer, Employee> employeeMap = new HashMap<Integer, Employee>();
+
+ for (String tableName : tableNames) {
+ if (r.nextInt(100)<skipInitialSelectPct) {
+ doLog("Skipping select");
+// employeeMap = null;
+ } else {
+ Statement querySt = connection.createStatement();
+ if (explainConnection) {
+ doLog("querySt is a: ");
+ Class<?> qsClass = querySt.getClass();
+ while (qsClass!=null) {
+ doLog(">>> " + qsClass.getName());
+ qsClass = qsClass.getSuperclass();
+ }
+ doLog("connection is a ");
+ qsClass = connection.getClass();
+ while (qsClass!=null) {
+ doLog(">>> " + qsClass.getName());
+ qsClass = qsClass.getSuperclass();
+ }
+ explainConnection = false;
+ }
+
+ HashMap<Integer, Employee> employeeMap = new HashMap<Integer, Employee>();
+ employeeMaps.put(tableName, employeeMap);
+
+ ResultSet rs = executeQueryTimed("select * from " + tableName, querySt, false);
+ while (rs.next()) {
+ // doLog("PersonId = " + rs.getInt("personId") + ", lastname = " + rs.getString("lastname") + ", firstname = " + rs.getString("firstname"));
+ Employee emp = new Employee(rs.getInt("personId"), rs.getString("lastname"), rs.getString("firstname"), rs.getString("address"), rs.getString("city"));
+ employeeMap.put(rs.getInt("personId"), emp);
+ doLog("Found: " + emp);
+ }
+ querySt.close();
+ }
+ }
+
+ Statement insertStmt = connection.createStatement();
+ boolean firstTry = true;
+// String tableName = tableNames[r.nextInt(tableNames.length)];
+// HashMap<Integer, Employee> employeeMap = employeeMaps.get(tableName);
+// executeUpdateTimed(generateStatement(employeeMap, r, tableName), insertStmt, true);
+
+ while (firstTry || r.nextBoolean()) {
+ firstTry = false;
+ String tableName = tableNames[r.nextInt(tableNames.length)];
+ HashMap<Integer, Employee> employeeMap = employeeMaps.get(tableName);
+ if (r.nextInt(100)<selectInsteadOfUpdatePct) {
+ Statement querySt = connection.createStatement();
+ ResultSet rs = executeQueryTimed("select count(*) x from " + tableName, querySt, false);
+ if (rs.next()) doLog("Select count returned " + rs.getInt("x")); else doLog("Didn't get response from select count!");
+ rs.close();
+ querySt.close();
+ } else {
+ executeUpdateTimed(generateStatement(employeeMap, r, tableName), insertStmt, true);
+ }
+ }
+
+ connection.commit();
+
+ insertStmt.close();
+ }
+
+ private void executeUpdateTimed(String sql, Statement insertStmt, boolean swallowException) throws SQLException {
+ long beforeTime, afterTime;
+
+ beforeTime = new java.util.Date().getTime();
+ try {
+ insertStmt.execute(sql);
+ } catch (org.apache.calcite.avatica.AvaticaSqlException e) {
+ if (swallowException) {
+ doLog("Caught exception: " + e);
+ } else {
+ throw e;
+ }
+ }
+ afterTime = new java.util.Date().getTime();
+ doLog("After update, execution time = " + (afterTime-beforeTime) + " ms");
+ }
+
+ private ResultSet executeQueryTimed(String sql, Statement querySt, boolean swallowException) throws SQLException {
+ long beforeTime, afterTime;
+
+ doLog("Before select: " + sql);
+ beforeTime = new java.util.Date().getTime();
+ ResultSet rs = null;
+ try {
+ rs = querySt.executeQuery(sql);
+ } catch (SQLException e) {
+ if (swallowException) {
+ doLog("Caught exception: " + e);
+ } else {
+ throw e;
+ }
+ }
+ afterTime = new java.util.Date().getTime();
+ doLog("After select, execution time = " + (afterTime-beforeTime) + " ms");
+ return rs;
+ }
+
+ private String generateStatement(HashMap<Integer, Employee> employeeMap, Random r, String tableName) {
+ String toRet = null;
+
+ boolean pickInsert = ((employeeMap==null) || (r.nextInt(8) >= employeeMap.size()));
+ if (!pickInsert) {
+ if (doDelete && doUpdate) {
+ if (r.nextBoolean()) toRet = generateDelete(employeeMap, r, tableName); else toRet = generateUpdate(employeeMap, r, tableName);
+ } else if (doDelete) {
+ toRet = generateDelete(employeeMap, r, tableName);
+ } else if (doUpdate) {
+ toRet = generateUpdate(employeeMap, r, tableName);
+ }
+ }
+ if (toRet==null) {
+ toRet = generateInsert(employeeMap, r, tableName);
+ }
+
+ doLog("Generated statement: " + toRet);
+
+ return toRet;
+ }
+
+ private String generateInsert(HashMap<Integer, Employee> employeeMap, Random r, String tableName) {
+ String toRet = null;
+
+ Integer id = null;
+ int range = baseIdRange;
+ while (id==null) {
+ id = baseId + r.nextInt(range);
+ if (employeeMap!=null && employeeMap.containsKey(id)) id = null;
+ if (employeeMap==null) id+=baseIdRange;
+ range+=(baseIdRange/5);
+ }
+ Employee newEmp = new Employee(id, lastName, Character.toUpperCase(randomLetter(r)) + generateLetters(r, 4+r.nextInt(4)), generateLetters(r, 4).toUpperCase(), generateLetters(r, 4).toUpperCase());
+ toRet = "insert into " + tableName + " values (" + id + ", '" + newEmp.getLastname() + "', '" + newEmp.getFirstname() + "', '" + newEmp.getAddress() + "', '" + newEmp.getCity() + "')";
+ if (employeeMap!=null) employeeMap.put(id, newEmp);
+
+ return toRet;
+ }
+
+ private String generateUpdate(HashMap<Integer, Employee> employeeMap, Random r, String tableName) {
+ String toRet = null;
+
+ Employee toUpd = chooseTarget(employeeMap, r);
+ if (toUpd!=null) {
+ String newFirst = null;
+ if (toUpd.getFirstname().length()<=3 || r.nextBoolean()) {
+ newFirst = toUpd.getFirstname() + randomLetter(r);
+ } else {
+ newFirst = toUpd.getFirstname().substring(0, toUpd.getFirstname().length()-1);
+ }
+// toRet = "update " + tableName + " set firstname = '" + newFirst + "' where personid = " + toUpd.getEmpid();
+ toRet = "update " + tableName + " set firstname = '" + newFirst + "' where personid = " + toUpd.getEmpid() + " and lastname = '" + toUpd.getLastname() + "'";
+ toUpd.setFirstname(newFirst);
+ }
+
+ return toRet;
+ }
+
+ private String generateLetters(Random r, int count) {
+ StringBuffer toRet = new StringBuffer();
+ for (int i=0; i<count; i++) {
+ Character c = null;
+ while (c==null) {
+ c = randomLetter(r);
+ char cc = c.charValue();
+ if ( (cc=='a' || cc=='e' || cc=='i' || cc=='o' || cc=='u') ^ (i%2==0) ) c = null;
+ }
+ toRet.append(c);
+ }
+ return toRet.toString();
+ }
+
+ private char randomLetter(Random r) {
+ int a = (int)'a';
+ return (char)(a+r.nextInt(26));
+ }
+
+ private String generateDelete(HashMap<Integer, Employee> employeeMap, Random r, String tableName) {
+ String toRet = null;
+
+ Employee toDel = chooseTarget(employeeMap, r);
+ if (toDel!=null) {
+ toRet = "delete from " + tableName + " where personid = " + toDel.getEmpid() + " and lastname = '" + toDel.getLastname() + "'";
+ employeeMap.remove(toDel.getEmpid());
+ }
+
+ return toRet;
+ }
+
+
+
+ private Employee chooseTarget(HashMap<Integer, Employee> employeeMap, Random r) {
+ Employee toPick = null;
+ int count = 0;
+ for (int id : employeeMap.keySet()) {
+ Employee emp = employeeMap.get(id);
+ if (!emp.getLastname().equals(lastName)) continue;
+ count++;
+ if (r.nextInt(count)==0) toPick = emp;
+ }
+ return toPick;
+ }
+
+ public void run() {
+ try {
+ Class.forName("org.apache.calcite.avatica.remote.Driver");
+ } catch (ClassNotFoundException e) {
+ e.printStackTrace();
+ System.exit(1);
+ }
+
+ Connection connection = null;
+
+ int calls = 0;
+ long startTime = new java.util.Date().getTime();
+ Random r = new Random();
+ boolean done = false;
+
+ while (!done) {
+ if (connection==null) {
+ try {
+ doLog("Opening new connection");
+ connection = DriverManager.getConnection(connectionString);
+ connection.setAutoCommit(false);
+ } catch (SQLException e) {
+ e.printStackTrace();
+ return;
+ }
+ } else {
+ doLog("Keeping open connection");
+ }
+
+ if (calls==0) {
+ long initialDelay = 1 + (1000*threadId);
+ synchronized(Thread.currentThread()) {
+ doLog("Delaying for " + initialDelay);
+ try {
+ Thread.currentThread().wait(initialDelay);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ done = true;
+ }
+ doLog("Done");
+ }
+ }
+
+ try {
+ doLog("Running test");
+ doTest(connection, r);
+ doLog("Test complete");
+ } catch (SQLException e1) {
+ e1.printStackTrace();
+ done = true;
+ if (connection!=null) {
+ try {
+ doLog("Closing connection in catch block");
+ connection.close();
+ } catch (SQLException e) {
+ e.printStackTrace();
+ done = true;
+ } finally {
+ connection = null;
+ }
+ }
+ }
+
+ if (!done && connection!=null && r.nextInt(100)<connectionCloseChancePct) {
+ try {
+ doLog("Closing connection");
+ connection.close();
+ connection = null;
+ doLog("Connection closed.");
+ } catch (SQLException e) {
+ e.printStackTrace();
+ done = true;
+ }
+ } else {
+ doLog("Not closing connection");
+ }
+
+ calls++;
+ long msElapsed = (new java.util.Date().getTime()) - startTime;
+ if (calls>maxCalls || msElapsed > maxTimeMs) done = true;
+
+ if (!done) {
+ long delay = r.nextInt(minDelayBetweenTestsMs);
+ while (r.nextBoolean()) delay += r.nextInt(additionalDelayBetweenTestsMs);
+ if (delay>0) {
+ doLog("Delaying for " + delay + " ms");
+ synchronized(Thread.currentThread()) {
+ try {
+ Thread.currentThread().wait(delay);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ done = true;
+ }
+ }
+ doLog("Delaying done");
+ }
+ }
+
+ doLog("");
+ }
+
+ if (connection!=null) {
+ try {
+ doLog("Closing connection at end");
+ connection.close();
+ } catch (SQLException e) {
+ e.printStackTrace();
+ }
+ }
+
+ doLog("All done.");
+ }
+
+ private void doLog(String string) {
+ System.out.println(">> Thread " + threadId + " " + sdf.format(new java.util.Date()) + " >> " + string);
+ }
+
+ public static void main(String[] args) {
+ MdbcTestMultiClient mtc = new MdbcTestMultiClient(args);
+ mtc.runTests();
+ }
+
+ private void runTests() {
+ for (int i=0; i<connectionStrings.size(); i++) {
+ MdbcTestMultiClient mt = new MdbcTestMultiClient(this, i);
+ Thread t = new Thread(mt);
+ t.start();
+ }
+ }
+
+}
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