JMX API: Adding the EndpointSnitchInfoMBean stab

This adds a stab to the EndpointSnitchInfoMBean

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This commit is contained in:
Amnon Heiman 2015-05-18 15:52:53 +03:00
parent cd2b174cd3
commit b0d8fd0de0
3 changed files with 139 additions and 0 deletions

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@ -7,6 +7,7 @@ import com.cloudius.urchin.api.APIClient;
import org.apache.cassandra.db.commitlog.CommitLog;
import org.apache.cassandra.gms.Gossiper;
import org.apache.cassandra.locator.EndpointSnitchInfo;
import org.apache.cassandra.net.MessagingService;
import org.apache.cassandra.service.StorageService;
@ -19,6 +20,7 @@ public class Main {
MessagingService.getInstance();
CommitLog.getInstance();
Gossiper.getInstance();
EndpointSnitchInfo.getInstance();
Thread.sleep(Long.MAX_VALUE);
}

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@ -0,0 +1,89 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.locator;
import java.lang.management.ManagementFactory;
import java.net.UnknownHostException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import com.cloudius.urchin.api.APIClient;
public class EndpointSnitchInfo implements EndpointSnitchInfoMBean {
private static final java.util.logging.Logger logger = java.util.logging.Logger
.getLogger(EndpointSnitchInfo.class.getName());
private APIClient c = new APIClient();
public void log(String str) {
System.out.println(str);
logger.info(str);
}
private static final EndpointSnitchInfo instance = new EndpointSnitchInfo();
public static EndpointSnitchInfo getInstance() {
return instance;
}
private EndpointSnitchInfo() {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
try {
mbs.registerMBean(new EndpointSnitchInfo(), new ObjectName(
"org.apache.cassandra.db:type=EndpointSnitchInfo"));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Provides the Rack name depending on the respective snitch used, given the
* host name/ip
*
* @param host
* @throws UnknownHostException
*/
public String getRack(String host) throws UnknownHostException {
log(" getRack(String host) throws UnknownHostException");
return c.getStringValue("");
}
/**
* Provides the Datacenter name depending on the respective snitch used,
* given the hostname/ip
*
* @param host
* @throws UnknownHostException
*/
public String getDatacenter(String host) throws UnknownHostException {
log(" getDatacenter(String host) throws UnknownHostException");
return c.getStringValue("");
}
/**
* Provides the snitch name of the cluster
*
* @return Snitch name
*/
public String getSnitchName() {
log(" getSnitchName()");
return c.getStringValue("");
}
}

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@ -0,0 +1,48 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.locator;
import java.net.UnknownHostException;
/**
* MBean exposing standard Snitch info
*/
public interface EndpointSnitchInfoMBean
{
/**
* Provides the Rack name depending on the respective snitch used, given the host name/ip
* @param host
* @throws UnknownHostException
*/
public String getRack(String host) throws UnknownHostException;
/**
* Provides the Datacenter name depending on the respective snitch used, given the hostname/ip
* @param host
* @throws UnknownHostException
*/
public String getDatacenter(String host) throws UnknownHostException;
/**
* Provides the snitch name of the cluster
* @return Snitch name
*/
public String getSnitchName();
}