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hikaricp module (#1781)

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* jvm log forging

* jvm log forging

* jvm log forging

* log forging

* adding hikariCP module

* try-with-resources

* adding employee use case
This commit is contained in:
Abhinab Kanrar 2017-05-15 02:12:35 +05:30 committed by Zeger Hendrikse
parent 0be7de2c42
commit 1cc1f703be
7 changed files with 609 additions and 294 deletions
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671
core-java/pom.xml
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@ -1,328 +1,413 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId> <groupId>com.baeldung</groupId>
<artifactId>core-java</artifactId> <artifactId>core-java</artifactId>
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<packaging>jar</packaging> <packaging>jar</packaging>
<name>core-java</name> <name>core-java</name>
<parent> <dependencies>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies> <!-- utils -->
<dependency>
<groupId>net.sourceforge.collections</groupId>
<artifactId>collections-generic</artifactId>
<version>${collections-generic.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<!-- utils --> <dependency>
<dependency> <groupId>org.apache.commons</groupId>
<groupId>net.sourceforge.collections</groupId> <artifactId>commons-collections4</artifactId>
<artifactId>collections-generic</artifactId> <version>${commons-collections4.version}</version>
<version>${collections-generic.version}</version> </dependency>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency> <dependency>
<groupId>org.apache.commons</groupId> <groupId>commons-io</groupId>
<artifactId>commons-collections4</artifactId> <artifactId>commons-io</artifactId>
<version>${commons-collections4.version}</version> <version>${commons-io.version}</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>commons-io</groupId> <groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId> <artifactId>commons-lang3</artifactId>
<version>${commons-io.version}</version> <version>${commons-lang3.version}</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.apache.commons</groupId> <groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId> <artifactId>commons-math3</artifactId>
<version>${commons-lang3.version}</version> <version>${commons-math3.version}</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.apache.commons</groupId> <groupId>org.bouncycastle</groupId>
<artifactId>commons-math3</artifactId> <artifactId>bcprov-jdk15on</artifactId>
<version>${commons-math3.version}</version> <version>${bouncycastle.version}</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.bouncycastle</groupId> <groupId>org.unix4j</groupId>
<artifactId>bcprov-jdk15on</artifactId> <artifactId>unix4j-command</artifactId>
<version>${bouncycastle.version}</version> <version>${unix4j.version}</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.unix4j</groupId> <groupId>com.googlecode.grep4j</groupId>
<artifactId>unix4j-command</artifactId> <artifactId>grep4j</artifactId>
<version>${unix4j.version}</version> <version>${grep4j.version}</version>
</dependency> </dependency>
<!-- web -->
<dependency> <!-- marshalling -->
<groupId>com.googlecode.grep4j</groupId>
<artifactId>grep4j</artifactId>
<version>${grep4j.version}</version>
</dependency>
<!-- web -->
<!-- marshalling --> <dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency> <!-- logging -->
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency> <dependency>
<groupId>org.projectlombok</groupId> <groupId>org.slf4j</groupId>
<artifactId>lombok</artifactId> <artifactId>slf4j-api</artifactId>
<version>${lombok.version}</version> <version>${org.slf4j.version}</version>
<scope>provided</scope> </dependency>
</dependency> <dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<!-- <scope>runtime</scope> -->
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
<!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
</dependency>
<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<!-- mysql --> <!-- test scoped -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- test scoped --> <dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-all</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency> <dependency>
<groupId>org.assertj</groupId> <groupId>junit</groupId>
<artifactId>assertj-core</artifactId> <artifactId>junit</artifactId>
<version>${assertj.version}</version> <version>${junit.version}</version>
<scope>test</scope> <scope>test</scope>
</dependency> </dependency>
<dependency> <dependency>
<groupId>com.jayway.awaitility</groupId> <groupId>org.hamcrest</groupId>
<artifactId>awaitility</artifactId> <artifactId>hamcrest-core</artifactId>
<version>${avaitility.version}</version> <version>${org.hamcrest.version}</version>
<scope>test</scope> <scope>test</scope>
</dependency> </dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>${org.hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency> <dependency>
<groupId>commons-codec</groupId> <groupId>org.assertj</groupId>
<artifactId>commons-codec</artifactId> <artifactId>assertj-core</artifactId>
<version>${commons-codec.version}</version> <version>${assertj.version}</version>
</dependency> <scope>test</scope>
</dependency>
<dependency> <dependency>
<groupId>org.javamoney</groupId> <groupId>org.testng</groupId>
<artifactId>moneta</artifactId> <artifactId>testng</artifactId>
<version>1.1</version> <version>${testng.version}</version>
</dependency> <scope>test</scope>
<dependency> </dependency>
<groupId>org.owasp.esapi</groupId>
<artifactId>esapi</artifactId>
<version>2.1.0.1</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency> <dependency>
<groupId>org.owasp.esapi</groupId> <groupId>org.mockito</groupId>
<artifactId>esapi</artifactId> <artifactId>mockito-core</artifactId>
<version>2.1.0.1</version> <version>${mockito.version}</version>
<exclusions> <scope>test</scope>
<exclusion> </dependency>
<artifactId>commons-logging</artifactId> <dependency>
<groupId>commons-logging</groupId> <groupId>com.jayway.awaitility</groupId>
</exclusion> <artifactId>awaitility</artifactId>
</exclusions> <version>${avaitility.version}</version>
</dependency> <scope>test</scope>
</dependency>
</dependencies> <dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>${commons-codec.version}</version>
</dependency>
<build> <dependency>
<finalName>core-java</finalName> <groupId>org.javamoney</groupId>
<resources> <artifactId>moneta</artifactId>
<resource> <version>1.1</version>
<directory>src/main/resources</directory> </dependency>
<filtering>true</filtering>
</resource>
</resources>
<plugins> <dependency>
<plugin> <groupId>org.owasp.esapi</groupId>
<groupId>org.apache.maven.plugins</groupId> <artifactId>esapi</artifactId>
<artifactId>maven-dependency-plugin</artifactId> <version>2.1.0.1</version>
<executions> </dependency>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin> <dependency>
<groupId>org.apache.maven.plugins</groupId> <groupId>com.zaxxer</groupId>
<artifactId>maven-jar-plugin</artifactId> <artifactId>HikariCP</artifactId>
<configuration> <version>2.6.1</version>
<archive> <scope>compile</scope>
<manifest> </dependency>
<addClasspath>true</addClasspath>
<classpathPrefix>libs/</classpathPrefix>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
<archive>
<manifest>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.jolira</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<executions>
<execution>
<configuration>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
<attachToBuild>true</attachToBuild>
<filename>${project.build.finalName}-onejar.${project.packaging}</filename>
</configuration>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<classifier>spring-boot</classifier>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build> <dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.0.0</version>
</dependency>
<profiles> </dependencies>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties> <build>
<!-- marshalling --> <finalName>core-java</finalName>
<jackson.version>2.8.5</jackson.version> <resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<!-- mysql --> <plugins>
<mysql.version>6.0.6</mysql.version>
<!-- util --> <plugin>
<guava.version>21.0</guava.version> <groupId>org.apache.maven.plugins</groupId>
<commons-lang3.version>3.5</commons-lang3.version> <artifactId>maven-compiler-plugin</artifactId>
<bouncycastle.version>1.55</bouncycastle.version> <version>${maven-compiler-plugin.version}</version>
<commons-codec.version>1.10</commons-codec.version> <configuration>
<commons-math3.version>3.6.1</commons-math3.version> <source>1.8</source>
<commons-io.version>2.5</commons-io.version> <target>1.8</target>
<commons-collections4.version>4.1</commons-collections4.version> </configuration>
<collections-generic.version>4.01</collections-generic.version> </plugin>
<unix4j.version>0.4</unix4j.version>
<grep4j.version>1.8.7</grep4j.version>
<lombok.version>1.16.12</lombok.version>
<!-- testing --> <plugin>
<assertj.version>3.6.1</assertj.version> <groupId>org.apache.maven.plugins</groupId>
<avaitility.version>1.7.0</avaitility.version> <artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LongRunningUnitTest.java</exclude>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</properties> <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>libs/</classpathPrefix>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
<archive>
<manifest>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.jolira</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<executions>
<execution>
<configuration>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
<attachToBuild>true</attachToBuild>
<filename>${project.build.finalName}-onejar.${project.packaging}</filename>
</configuration>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<classifier>spring-boot</classifier>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<!-- marshalling -->
<jackson.version>2.8.5</jackson.version>
<!-- logging -->
<org.slf4j.version>1.7.21</org.slf4j.version>
<logback.version>1.1.7</logback.version>
<!-- util -->
<guava.version>21.0</guava.version>
<commons-lang3.version>3.5</commons-lang3.version>
<bouncycastle.version>1.55</bouncycastle.version>
<commons-codec.version>1.10</commons-codec.version>
<commons-math3.version>3.6.1</commons-math3.version>
<commons-io.version>2.5</commons-io.version>
<commons-collections4.version>4.1</commons-collections4.version>
<collections-generic.version>4.01</collections-generic.version>
<unix4j.version>0.4</unix4j.version>
<grep4j.version>1.8.7</grep4j.version>
<lombok.version>1.16.12</lombok.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<testng.version>6.10</testng.version>
<assertj.version>3.6.1</assertj.version>
<avaitility.version>1.7.0</avaitility.version>
<!-- maven plugins -->
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
</properties>
</project> </project>

48
core-java/src/main/java/com/baeldung/hikaricp/DataSource.java Normal file
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package com.baeldung.hikaricp;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
public class DataSource {
private static HikariConfig config = new HikariConfig();
private static HikariDataSource ds;
static {
// config = new HikariConfig("datasource.properties");
// Properties props = new Properties();
// props.setProperty("dataSourceClassName", "org.postgresql.ds.PGSimpleDataSource");
// props.setProperty("dataSource.user", "postgres");
// props.setProperty("dataSource.password", "postgres");
// props.setProperty("dataSource.databaseName", "postgres");
// props.setProperty("dataSource.portNumber", "5432");
// props.setProperty("dataSource.serverName", "localhost");
// props.put("dataSource.logWriter", new PrintWriter(System.out));
// config = new HikariConfig(props);
config.setJdbcUrl("jdbc:postgresql://localhost:5432/postgres");
config.setUsername("postgres");
config.setPassword("postgres");
config.addDataSourceProperty("cachePrepStmts", "true");
config.addDataSourceProperty("prepStmtCacheSize", "250");
config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");
ds = new HikariDataSource(config);
// ds.setJdbcUrl("jdbc:postgresql://localhost:5432/postgres");
// ds.setUsername("postgres");
// ds.setPassword("postgres");
}
private DataSource() {}
public static Connection getConnection() throws SQLException {
return ds.getConnection();
}
}

72
core-java/src/main/java/com/baeldung/hikaricp/Employee.java Normal file
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package com.baeldung.hikaricp;
import java.sql.Date;
public class Employee {
private int empNo;
private String ename;
private String job;
private int mgr;
private Date hiredate;
private int sal;
private int comm;
private int deptno;
public int getEmpNo() {
return empNo;
}
public void setEmpNo(int empNo) {
this.empNo = empNo;
}
public String getEname() {
return ename;
}
public void setEname(String ename) {
this.ename = ename;
}
public String getJob() {
return job;
}
public void setJob(String job) {
this.job = job;
}
public int getMgr() {
return mgr;
}
public void setMgr(int mgr) {
this.mgr = mgr;
}
public Date getHiredate() {
return hiredate;
}
public void setHiredate(Date hiredate) {
this.hiredate = hiredate;
}
public int getSal() {
return sal;
}
public void setSal(int sal) {
this.sal = sal;
}
public int getComm() {
return comm;
}
public void setComm(int comm) {
this.comm = comm;
}
public int getDeptno() {
return deptno;
}
public void setDeptno(int deptno) {
this.deptno = deptno;
}
@Override
public String toString() {
return "Employee [empNo=" + empNo + ", ename=" + ename + ", job=" + job + ", mgr=" + mgr + ", hiredate="
+ hiredate + ", sal=" + sal + ", comm=" + comm + ", deptno=" + deptno + "]";
}
}

38
core-java/src/main/java/com/baeldung/hikaricp/HikariCPDemo.java Normal file
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package com.baeldung.hikaricp;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class HikariCPDemo {
public static List<Employee> fetchData() {
final String SQL_QUERY = "select * from emp";
List<Employee> employees = null;
try (Connection con = DataSource.getConnection();
PreparedStatement pst = con.prepareStatement(SQL_QUERY);
ResultSet rs = pst.executeQuery();) {
employees = new ArrayList<Employee>();
Employee employee;
while (rs.next()) {
employee = new Employee();
employee.setEmpNo(rs.getInt("empno"));
employee.setEname(rs.getString("ename"));
employee.setJob(rs.getString("job"));
employee.setMgr(rs.getInt("mgr"));
employee.setHiredate(rs.getDate("hiredate"));
employee.setSal(rs.getInt("sal"));
employee.setComm(rs.getInt("comm"));
employee.setDeptno(rs.getInt("deptno"));
employees.add(employee);
}
} catch (SQLException e) {
e.printStackTrace();
}
return employees;
}
}

47
core-java/src/main/java/com/baeldung/hikaricp/db.sql Normal file
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create table dept(
deptno numeric,
dname varchar(14),
loc varchar(13),
constraint pk_dept primary key (deptno)
);
create table emp(
empno numeric,
ename varchar(10),
job varchar(9),
mgr numeric,
hiredate date,
sal numeric,
comm numeric,
deptno numeric,
constraint pk_emp primary key (empno),
constraint fk_deptno foreign key (deptno) references dept (deptno)
);
insert into dept values(10, 'ACCOUNTING', 'NEW YORK');
insert into dept values(20, 'RESEARCH', 'DALLAS');
insert into dept values(30, 'SALES', 'CHICAGO');
insert into dept values(40, 'OPERATIONS', 'BOSTON');
insert into emp values(
7839, 'KING', 'PRESIDENT', null,
to_date('17-11-1981','dd-mm-yyyy'),
7698, null, 10
);
insert into emp values(
7698, 'BLAKE', 'MANAGER', 7839,
to_date('1-5-1981','dd-mm-yyyy'),
7782, null, 20
);
insert into emp values(
7782, 'CLARK', 'MANAGER', 7839,
to_date('9-6-1981','dd-mm-yyyy'),
7566, null, 30
);
insert into emp values(
7566, 'JONES', 'MANAGER', 7839,
to_date('2-4-1981','dd-mm-yyyy'),
7839, null, 40
);
commit;

6
core-java/src/main/resources/datasource.properties Normal file
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@ -0,0 +1,6 @@
dataSourceClassName=//TBD
dataSource.user=//TBD
dataSource.password=//TBD
dataSource.databaseName=//TBD
dataSource.portNumber=//TBD
dataSource.serverName=//TBD

19
core-java/src/test/java/com/baeldung/hikaricp/HikariCPTest.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.hikaricp;
import java.util.List;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class HikariCPTest {
@Test
// @Ignore
public void givenConnection_thenFetchDbData() {
List<Employee> employees = HikariCPDemo.fetchData();
assertEquals(4, employees.size());
}
}