scylla-jmx/src/main/java/org/apache/cassandra/locator/EndpointSnitchInfo.java
Calle Wilund 3fe9cfc232 EndpointSnitchInfo: Fix getRack/DC host handling
I.e. our localhost might be (and probably is) different from scyllas
"fb::broadcast", and if not, try to get numerical asap.
2016-10-24 11:43:51 +00:00

95 lines
3.2 KiB
Java

/*
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* See the License for the specific language governing permissions and
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*/
package org.apache.cassandra.locator;
import static java.util.Collections.singletonMap;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.logging.Logger;
import javax.ws.rs.core.MultivaluedHashMap;
import javax.ws.rs.core.MultivaluedMap;
import com.scylladb.jmx.api.APIClient;
import com.scylladb.jmx.metrics.APIMBean;
public class EndpointSnitchInfo extends APIMBean implements EndpointSnitchInfoMBean {
public static final String MBEAN_NAME = "org.apache.cassandra.db:type=EndpointSnitchInfo";
private static final Logger logger = Logger.getLogger(EndpointSnitchInfo.class.getName());
public EndpointSnitchInfo(APIClient c) {
super(c);
}
public void log(String str) {
logger.finest(str);
}
/**
* Provides the Rack name depending on the respective snitch used, given the
* host name/ip
*
* @param host
* @throws UnknownHostException
*/
@Override
public String getRack(String host) throws UnknownHostException {
log("getRack(String host) throws UnknownHostException");
MultivaluedMap<String, String> queryParams = host != null ? new MultivaluedHashMap<String, String>(
singletonMap("host", InetAddress.getByName(host).getHostAddress())) : null;
return client.getStringValue("/snitch/rack", queryParams, 10000);
}
/**
* Provides the Datacenter name depending on the respective snitch used,
* given the hostname/ip
*
* @param host
* @throws UnknownHostException
*/
@Override
public String getDatacenter(String host) throws UnknownHostException {
log(" getDatacenter(String host) throws UnknownHostException");
MultivaluedMap<String, String> queryParams = host != null ? new MultivaluedHashMap<String, String>(
singletonMap("host", InetAddress.getByName(host).getHostAddress())) : null;
return client.getStringValue("/snitch/datacenter", queryParams, 10000);
}
/**
* Provides the snitch name of the cluster
*
* @return Snitch name
*/
@Override
public String getSnitchName() {
log(" getSnitchName()");
return client.getStringValue("/snitch/name");
}
@Override
public String getRack() {
return client.getStringValue("/snitch/rack", null, 10000);
}
@Override
public String getDatacenter() {
return client.getStringValue("/snitch/datacenter", null, 10000);
}
}