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134 lines
4 KiB
Java
134 lines
4 KiB
Java
/*-
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* Copyright (C) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
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*
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* This file was distributed by Oracle as part of a version of Oracle Berkeley
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* DB Java Edition made available at:
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*
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* http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html
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*
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* Please see the LICENSE file included in the top-level directory of the
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* appropriate version of Oracle Berkeley DB Java Edition for a copy of the
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* license and additional information.
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*/
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// File TxnGuideDPL.java
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package persist.txn;
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import java.io.File;
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import com.sleepycat.je.DatabaseException;
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import com.sleepycat.je.Environment;
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import com.sleepycat.je.EnvironmentConfig;
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import com.sleepycat.persist.EntityStore;
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import com.sleepycat.persist.StoreConfig;
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public class TxnGuideDPL {
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private static String myEnvPath = "./";
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private static String storeName = "exampleStore";
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// Handles
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private static EntityStore myStore = null;
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private static Environment myEnv = null;
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private static final int NUMTHREADS = 5;
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private static void usage() {
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System.out.println("TxnGuideDPL [-h <env directory>]");
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System.exit(-1);
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}
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public static void main(String args[]) {
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try {
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// Parse the arguments list
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parseArgs(args);
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// Open the environment and store
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openEnv();
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// Start the threads
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StoreWriter[] threadArray;
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threadArray = new StoreWriter[NUMTHREADS];
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for (int i = 0; i < NUMTHREADS; i++) {
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threadArray[i] = new StoreWriter(myEnv, myStore);
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threadArray[i].start();
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}
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for (int i = 0; i < NUMTHREADS; i++) {
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threadArray[i].join();
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}
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} catch (Exception e) {
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System.err.println("TxnGuideDPL: " + e.toString());
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e.printStackTrace();
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} finally {
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closeEnv();
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}
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System.out.println("All done.");
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}
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private static void openEnv() throws DatabaseException {
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System.out.println("opening env and store");
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// Set up the environment.
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EnvironmentConfig myEnvConfig = new EnvironmentConfig();
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myEnvConfig.setAllowCreate(true);
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myEnvConfig.setTransactional(true);
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// Environment handles are free-threaded by default in JE,
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// so we do not have to do anything to cause the
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// environment handle to be free-threaded.
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// Set up the entity store
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StoreConfig myStoreConfig = new StoreConfig();
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myStoreConfig.setAllowCreate(true);
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myStoreConfig.setTransactional(true);
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// Open the environment
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myEnv = new Environment(new File(myEnvPath), // Env home
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myEnvConfig);
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// Open the store
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myStore = new EntityStore(myEnv, storeName, myStoreConfig);
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}
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private static void closeEnv() {
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System.out.println("Closing env and store");
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if (myStore != null ) {
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try {
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myStore.close();
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} catch (DatabaseException e) {
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System.err.println("closeEnv: myStore: " +
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e.toString());
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e.printStackTrace();
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}
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}
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if (myEnv != null ) {
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try {
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myEnv.close();
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} catch (DatabaseException e) {
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System.err.println("closeEnv: " + e.toString());
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e.printStackTrace();
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}
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}
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}
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private TxnGuideDPL() {}
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private static void parseArgs(String args[]) {
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int nArgs = args.length;
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for(int i = 0; i < args.length; ++i) {
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if (args[i].startsWith("-")) {
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switch(args[i].charAt(1)) {
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case 'h':
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if (i < nArgs - 1) {
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myEnvPath = new String(args[++i]);
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}
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break;
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default:
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usage();
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}
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}
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}
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}
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}
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