101 lines
3.2 KiB
Java
101 lines
3.2 KiB
Java
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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package org.apache.cassandra.gms;
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import java.lang.management.ManagementFactory;
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import java.net.UnknownHostException;
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import java.util.*;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import com.cloudius.urchin.api.APIClient;
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public class FailureDetector implements FailureDetectorMBean {
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public static final String MBEAN_NAME = "org.apache.cassandra.net:type=FailureDetector";
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private static final java.util.logging.Logger logger = java.util.logging.Logger
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.getLogger(FailureDetector.class.getName());
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private APIClient c = new APIClient();
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public void log(String str) {
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logger.info(str);
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}
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private static final FailureDetector instance = new FailureDetector();
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public static FailureDetector getInstance() {
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return instance;
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}
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private FailureDetector() {
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// Register this instance with JMX
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try {
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MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
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mbs.registerMBean(this, new ObjectName(MBEAN_NAME));
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public void dumpInterArrivalTimes() {
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log(" dumpInterArrivalTimes()");
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}
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public void setPhiConvictThreshold(double phi) {
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log(" setPhiConvictThreshold(double phi)");
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}
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public double getPhiConvictThreshold() {
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log(" getPhiConvictThreshold()");
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return c.getDoubleValue("/failure_detector/phi");
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}
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public String getAllEndpointStates() {
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log(" getAllEndpointStates()");
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return c.getStringValue("/failure_detector/endpoints");
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}
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public String getEndpointState(String address) throws UnknownHostException {
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log(" getEndpointState(String address) throws UnknownHostException");
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return c.getStringValue("/failure_detector/endpoints/states/" + address);
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}
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public Map<String, String> getSimpleStates() {
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log(" getSimpleStates()");
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return c.getMapStrValue("/failure_detector/simple_states");
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}
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public int getDownEndpointCount() {
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log(" getDownEndpointCount()");
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return c.getIntValue("/failure_detector/count/endpoint/down");
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}
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public int getUpEndpointCount() {
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log(" getUpEndpointCount()");
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return c.getIntValue("/failure_detector/count/endpoint/up");
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}
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}
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