package org.springframework.boot.actuate.jms;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.boot.actuate.health.AbstractHealthIndicator;
import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthIndicator;
public class JmsHealthIndicator extends AbstractHealthIndicator {
private final Log logger = LogFactory.getLog(JmsHealthIndicator.class);
private final ConnectionFactory connectionFactory;
public JmsHealthIndicator(ConnectionFactory connectionFactory) {
super("JMS health check failed");
this.connectionFactory = connectionFactory;
}
@Override
protected void doHealthCheck(Health.Builder builder) throws Exception {
try (Connection connection = this.connectionFactory.createConnection()) {
new MonitoredConnection(connection).start();
builder.up().withDetail("provider", connection.getMetaData().getJMSProviderName());
}
}
private final class MonitoredConnection {
private final CountDownLatch latch = new CountDownLatch(1);
private final Connection connection;
MonitoredConnection(Connection connection) {
this.connection = connection;
}
void start() throws JMSException {
new Thread(() -> {
try {
if (!this.latch.await(5, TimeUnit.SECONDS)) {
JmsHealthIndicator.this.logger
.warn("Connection failed to start within 5 seconds and will be closed.");
closeConnection();
}
}
catch (InterruptedException ex) {
Thread.currentThread().interrupt();
}
}, "jms-health-indicator").start();
this.connection.start();
this.latch.countDown();
}
private void closeConnection() {
try {
this.connection.close();
}
catch (Exception ex) {
}
}
}
}