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Adding pom.xml for mvn build + unittests using sqlite
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‎pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<name>OPL jdbc database access</name>
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<groupId>com.ibm.optim.opl</groupId>
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<artifactId>jdbc-custom-data-source</artifactId>
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<version>1.0-SNAPSHOT</version>
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<packaging>jar</packaging>
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<properties>
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<jdk.version>1.7</jdk.version>
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<cplex_home>${env.CPLEX_STUDIO_DIR128}</cplex_home>
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<cplex_version>12.8.0.0</cplex_version>
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</properties>
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<dependencies>
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<dependency>
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<!-- To install oplall.jar on your machine, do something like:
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mvn install:install-file "-Dfile=%CPLEX_STUDIO_DIR128%\opl\lib\oplall.jar" -DgroupId=com.ibm.ilog.optim -DartifactId=oplall -Dversion=12.8.0.0 -Dpackaging=jar
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-->
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<groupId>com.ibm.ilog.optim</groupId>
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<artifactId>oplall</artifactId>
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<version>${cplex_version}</version>
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</dependency>
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<dependency>
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<groupId>org.xerial</groupId>
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<artifactId>sqlite-jdbc</artifactId>
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<version>3.27.2.1</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.11</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>2.3.2</version>
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<configuration>
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<source>${jdk.version}</source>
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<target>${jdk.version}</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.1.2</version>
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<configuration>
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<excludes>
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<exclude>**/log4j.properties</exclude>
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</excludes>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<profiles>
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<profile>
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<id>binary.windows</id>
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<activation>
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<os>
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<family>windows</family>
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</os>
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</activation>
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<properties>
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<binary.group>x64_windows</binary.group>
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</properties>
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</profile>
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<profile>
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<id>binary.linux</id>
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<activation>
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<os>
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<name>Linux</name>
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<arch>amd64</arch>
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</os>
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</activation>
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<properties>
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<binary.group>x86-64_linux</binary.group>
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</properties>
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</profile>
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<profile>
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<id>binary.plinux</id>
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<activation>
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<os>
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<name>Linux</name>
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<arch>ppc64le</arch>
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</os>
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</activation>
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<properties>
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<binary.group>ppc64le_linux</binary.group>
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</properties>
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</profile>
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<profile>
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<id>binary.osx</id>
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<activation>
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<os>
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<name>Mac</name>
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</os>
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</activation>
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<properties>
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<binary.group>x86-64_osx</binary.group>
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</properties>
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</profile>
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</profiles>
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</project>

‎src/test/java/com/ibm/opl/customdatasource/JavaApiTest.java‎

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package com.ibm.opl.customdatasource;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.Statement;
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import static org.junit.Assert.*;
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import org.junit.Test;
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import ilog.concert.IloException;
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import ilog.opl.IloOplDataSource;
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import ilog.opl.IloOplErrorHandler;
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import ilog.opl.IloOplException;
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import ilog.opl.IloOplFactory;
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import ilog.opl.IloOplModel;
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import ilog.opl.IloOplModelDefinition;
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import ilog.opl.IloOplRunConfiguration;
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public class JavaApiTest {
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public static String OIL_DAT="models/oil.dat";
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public static String OIL_MOD="models/oil.mod";
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public static String CONFIG_RESOURCE = "models/oil_sqlite.xml";
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public static String CREATE_OIL_MOD="models/oil_create_db.mod";
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public static String CREATE_CONFIG_RESOURCE = "models/oil_create_db.xml";
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/**
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* Runs a model as a .mod file, using a set of .dat files, and a given jdbc configuration.
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*
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* If connectionString is specified, it will be used instead of the url in the jdbc configuration,
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* allowing for tests with database which url is not static (ex: temporary test databases).
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* @param modFilename The .mod file
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* @param datFilenames An array of .dat files
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* @param jdbcConfigurationFile The jdbc configuration file
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* @param connectionString An override url
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* @throws IOException
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* @throws IloException
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*/
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public final void runMod(String modFilename, String[] datFilenames, String jdbcConfigurationFile,
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String connectionString) throws IOException, IloException {
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// create OPL
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IloOplFactory.setDebugMode(true);
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IloOplFactory oplF = new IloOplFactory();
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IloOplErrorHandler errHandler = oplF.createOplErrorHandler(System.out);
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IloOplRunConfiguration rc = null;
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if (datFilenames == null || datFilenames.length == 0) {
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rc = oplF.createOplRunConfiguration(modFilename);
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}
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else {
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rc = oplF.createOplRunConfiguration(modFilename, datFilenames);
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}
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rc.setErrorHandler(errHandler);
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IloOplModel opl = rc.getOplModel();
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IloOplModelDefinition def = opl.getModelDefinition();
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//
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// Reads the JDBC configuration, initialize a JDBC custom data source
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// and sets the source in OPL.
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//
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JdbcConfiguration jdbcProperties = null;
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if (jdbcConfigurationFile != null) {
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jdbcProperties = new JdbcConfiguration();
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jdbcProperties.read(jdbcConfigurationFile);
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// we want to override connection string with conn string that has the actual temp db path
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if (connectionString != null)
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jdbcProperties.setUrl(connectionString);
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// Create the custom JDBC data source
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IloOplDataSource jdbcDataSource = new JdbcCustomDataSource(jdbcProperties, oplF, def);
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// Pass it to the model.
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opl.addDataSource(jdbcDataSource);
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}
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opl.generate();
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boolean success = false;
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if (opl.hasCplex()) {
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if (opl.getCplex().solve()) {
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success = true;
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}
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} else {
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if (opl.getCP().solve()) {
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success = true;
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}
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}
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if (success == true) {
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opl.postProcess();
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// write results
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if (jdbcProperties != null) {
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JdbcWriter writer = new JdbcWriter(jdbcProperties, def, opl);
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writer.customWrite();
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}
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}
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}
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/**
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* Tests the JdbcCustomReader/Writer by API.
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*/
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@Test
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public final void testApiCall() {
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File tempdb = null;
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try {
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// create temp db
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tempdb = File.createTempFile("testApiCall", ".db");
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String connectionString = "jdbc:sqlite:" + tempdb.getAbsolutePath();
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Connection conn = null;
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try {
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// creates the db
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conn = DriverManager.getConnection(connectionString);
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} finally {
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if (conn != null)
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conn.close();
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}
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// use a .mod to create tmp database
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String createModFilename = new File(getClass().getResource(CREATE_OIL_MOD).getFile()).getAbsolutePath();
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String createJdbcConfigurationFile = new File(getClass().getResource(CREATE_CONFIG_RESOURCE).getFile()).getAbsolutePath();
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runMod(createModFilename, null, createJdbcConfigurationFile, connectionString);
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// now solve the oil model
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String modFilename = new File(getClass().getResource(OIL_MOD).getFile()).getAbsolutePath();
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String[] datFilenames = {new File(getClass().getResource(OIL_DAT).getFile()).getAbsolutePath()};
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String jdbcConfigurationFile = new File(getClass().getResource(CONFIG_RESOURCE).getFile()).getAbsolutePath();
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runMod(modFilename, datFilenames, jdbcConfigurationFile, connectionString);
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} catch (IloOplException ex) {
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ex.printStackTrace();
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fail("### OPL exception: " + ex.getMessage());
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} catch (IloException ex) {
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ex.printStackTrace();
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fail("### CONCERT exception: " + ex.getMessage());
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} catch (Exception ex) {
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ex.printStackTrace();
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fail("### UNEXPECTED UNKNOWN ERROR ...");
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} finally {
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if (tempdb != null) {
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tempdb.delete();
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}
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}
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}
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}

‎src/test/resources/com/ibm/opl/customdatasource/models/oil.dat‎

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MaxProduction = 14000;
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ProdCost = 4;

‎src/test/resources/com/ibm/opl/customdatasource/models/oil.mod‎

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// --------------------------------------------------------------------------
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// Licensed Materials - Property of IBM
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//
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// 5725-A06 5725-A29 5724-Y48 5724-Y49 5724-Y54 5724-Y55
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// Copyright IBM Corporation 1998, 2013. All Rights Reserved.
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//
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// Note to U.S. Government Users Restricted Rights:
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// Use, duplication or disclosure restricted by GSA ADP Schedule
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// Contract with IBM Corp.
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// --------------------------------------------------------------------------
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{string} Gasolines = ...;
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{string} Oils = ...;
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tuple gasType {
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string name;
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float demand;
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float price;
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float octane;
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float lead;
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}
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tuple oilType {
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string name;
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float capacity;
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float price;
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float octane;
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float lead;
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}
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{gasType} GasData = ...;
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{oilType} OilData = ...;
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gasType Gas[Gasolines] = [ g.name : g | g in GasData ];
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oilType Oil[Oils] = [ o.name : o | o in OilData ];
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/* Alternate way to initialize the indexing arrays 'Gas', 'Oil':
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gasType Gas[Gasolines];
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execute {
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for(var g in GasData) {
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Gas[g.name] = g
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}
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}
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oilType Oil[Oils];
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execute {
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for(var o in OilData) {
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Oil[o.name] = o
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}
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}
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*/
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float MaxProduction = ...;
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float ProdCost = ...;
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dvar float+ a[Gasolines];
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dvar float+ Blend[Oils][Gasolines];
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maximize
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sum( g in Gasolines , o in Oils )
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(Gas[g].price - Oil[o].price - ProdCost) * Blend[o][g]
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- sum( g in Gasolines ) a[g];
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subject to {
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ctDemand: forall( g in Gasolines )
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sum( o in Oils )
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Blend[o][g] == Gas[g].demand + 10 * a[g];
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ctCapacity: forall( o in Oils )
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sum( g in Gasolines )
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Blend[o][g] <= Oil[o].capacity;
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ctMaxProd: sum( o in Oils , g in Gasolines )
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Blend[o][g] <= MaxProduction;
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ctOctane: forall( g in Gasolines )
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sum( o in Oils )
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(Oil[o].octane - Gas[g].octane) * Blend[o][g] >= 0;
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ctLead: forall( g in Gasolines )
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sum( o in Oils )
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(Oil[o].lead - Gas[g].lead) * Blend[o][g] <= 0;
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}
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tuple result {
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string oil;
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string gas;
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float blend;
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float a;
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}
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{result} Result =
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{ <o,g,Blend[o][g],a[g]> | o in Oils, g in Gasolines };
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execute DISPLAY_RESULT{
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writeln("Result = ",Result)
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}

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