package org.infinispan.lucenedemo;
import java.io.IOException;
import java.util.List;
import java.util.Scanner;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.search.Query;
import org.apache.lucene.store.Directory;
import org.infinispan.Cache;
import org.infinispan.lucene.directory.DirectoryBuilder;
import org.infinispan.manager.DefaultCacheManager;
import org.infinispan.remoting.transport.Address;
/**
* DemoDriver is a console hello-world application to show the Lucene
* clustering capabilities.
* This class parses the user input and drives the actions implemented in DemoActions.
*
* As always when running JGroups to run a demo cluster of multiple applications running
* on the same host, set these JVM options:
* -Djava.net.preferIPv4Stack=true -Djgroups.bind_addr=127.0.0.1
*
* @author Sanne Grinovero
* @since 4.0
*/
public class DemoDriver implements Runnable {
private final DemoActions actions;
public DemoDriver(Directory infinispanDirectory, Cache<?, ?> cache) {
actions = new DemoActions(infinispanDirectory, cache);
}
public static void main(String[] args) throws IOException {
DefaultCacheManager cacheManager = new DefaultCacheManager("config-samples/lucene-demo-cache-config.xml");
cacheManager.start();
try {
Cache<?, ?> cache = cacheManager.getCache();
Directory directory = DirectoryBuilder
.newDirectoryInstance(cache, cache, cache, "index-name")
.create();
DemoDriver driver = new DemoDriver(directory, cache);
driver.run();
}
finally {
cacheManager.stop();
}
}
private void doQuery(Scanner scanner) {
scanner.nextLine();
Query query = null;
while (query == null) {
System.out.println("Enter a query:");
String queryLine = scanner.nextLine();
try {
query = actions.parseQuery(queryLine);
} catch (ParseException e) {
System.out.println("Wrong syntax in query: " + e.getMessage());
System.out.println("type it again: ");
}
}
List<String> listMatches = actions.listStoredValuesMatchingQuery(query);
printResult(listMatches);
}
private void insertNewText(Scanner scanner) throws IOException {
System.out.println("Enter string as new document:");
scanner.nextLine();
String line = scanner.nextLine();
actions.addNewDocument(line);
}
private void listAllDocuments() {
List<String> listMatches = actions.listAllDocuments();
printResult(listMatches);
}
private void listMembers() {
List<Address> members = actions.listAllMembers();
System.out.println("\tmembers:\t" + members);
}
private void showOptions() {
System.out.println(
"Options:\n" +
"\t[1] List cluster members\n" +
"\t[2] List all documents in index\n" +
"\t[3] insert new text\n" +
"\t[4] enter a query\n" +
"\t[5] quit");
}
private void printResult(List<String> storedValues) {
System.out.println("Matching documents:\n");
if (storedValues.isEmpty()) {
System.out.println("\tNo documents found.");
}
else {
int i = 0;
for (String value : storedValues) {
System.out.println(++i + "\t\"" + value + "\"");
}
}
}
@Override
public void run() {
Scanner scanner = new Scanner(System.in);
while (true) {
showOptions();
boolean warned = false;
while (!scanner.hasNextInt()) {
if (!warned) {
System.out.println("Invalid option, try again:");
warned = true;
}
scanner.nextLine();
}
int result = scanner.nextInt();
try {
switch (result) {
case 1:
listMembers();
break;
case 2:
listAllDocuments();
break;
case 3:
insertNewText(scanner);
break;
case 4:
doQuery(scanner);
break;
case 5:
System.out.println("Quit.");
return;
default:
System.out.println("Invalid option.");
}
System.out.println("");
} catch (Exception e) {
e.printStackTrace();
}
}
}
}