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* Copyright (c) 2013, impossibl.com
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package com.impossibl.postgres.jdbc;
import com.impossibl.postgres.api.jdbc.PGConnection;
import com.impossibl.postgres.api.jdbc.PGNotificationListener;
import java.sql.Statement;
import java.util.concurrent.atomic.AtomicBoolean;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@RunWith(JUnit4.class)
public class NotificationTest {
@Test
public void testSimpleNotification() throws Exception {
try (PGConnection conn = (PGConnection) TestUtil.openDB()) {
final AtomicBoolean flag = new AtomicBoolean(false);
PGNotificationListener notificationListener = new PGNotificationListener() {
@Override
public void notification(int processId, String channelName, String payload) {
flag.set(true);
}
};
conn.addNotificationListener(notificationListener);
try (Statement stmt = conn.createStatement()) {
stmt.execute("LISTEN TestChannel");
stmt.execute("NOTIFY TestChannel");
}
assertTrue(flag.get());
}
}
@Test
public void testFilteredNotification() throws Exception {
try (PGConnection conn = (PGConnection) TestUtil.openDB()) {
final AtomicBoolean validFlag = new AtomicBoolean(false);
PGNotificationListener validNotificationListener = new PGNotificationListener() {
@Override
public void notification(int processId, String channelName, String payload) {
validFlag.set(true);
}
};
conn.addNotificationListener("1.*", validNotificationListener);
final AtomicBoolean invalidFlag = new AtomicBoolean(false);
PGNotificationListener invalidNotificationListener = new PGNotificationListener() {
@Override
public void notification(int processId, String channelName, String payload) {
invalidFlag.set(true);
}
};
conn.addNotificationListener("2.*", invalidNotificationListener);
final AtomicBoolean allFlag = new AtomicBoolean(false);
PGNotificationListener allNotificationListener = new PGNotificationListener() {
@Override
public void notification(int processId, String channelName, String payload) {
allFlag.set(true);
}
};
conn.addNotificationListener(allNotificationListener);
try (Statement stmt = conn.createStatement()) {
stmt.execute("LISTEN \"1channel\"");
stmt.execute("LISTEN \"2channel\"");
stmt.execute("NOTIFY \"1channel\"");
}
assertTrue(validFlag.get());
assertFalse(invalidFlag.get());
assertTrue(allFlag.get());
}
}
}