opendaylight/networkconfiguration/neutron/implementation/src/main/java/org/opendaylight/controller/networkconfig/neutron/implementation/NeutronLoadBalancerHealthMonitorInterface.java

   1 /*
   2  * Copyright (C) 2014 Red Hat, Inc.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.networkconfig.neutron.implementation;
  10
  11 import org.opendaylight.controller.networkconfig.neutron.INeutronLoadBalancerHealthMonitorCRUD;
  12 import org.opendaylight.controller.networkconfig.neutron.NeutronLoadBalancerHealthMonitor;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 import java.lang.reflect.Method;
  17 import java.util.ArrayList;
  18 import java.util.HashSet;
  19 import java.util.List;
  20 import java.util.Map.Entry;
  21 import java.util.Set;
  22 import java.util.concurrent.ConcurrentHashMap;
  23 import java.util.concurrent.ConcurrentMap;
  24
  25 public class NeutronLoadBalancerHealthMonitorInterface implements INeutronLoadBalancerHealthMonitorCRUD {
  26     private static final Logger logger = LoggerFactory.getLogger(NeutronLoadBalancerHealthMonitorInterface.class);
  27     private ConcurrentMap<String, NeutronLoadBalancerHealthMonitor> loadBalancerHealthMonitorDB = new ConcurrentHashMap<String, NeutronLoadBalancerHealthMonitor>();
  28
  29
  30     // this method uses reflection to update an object from it's delta.
  31
  32     private boolean overwrite(Object target, Object delta) {
  33         Method[] methods = target.getClass().getMethods();
  34
  35         for (Method toMethod : methods) {
  36             if (toMethod.getDeclaringClass().equals(target.getClass())
  37                     && toMethod.getName().startsWith("set")) {
  38
  39                 String toName = toMethod.getName();
  40                 String fromName = toName.replace("set", "get");
  41
  42                 try {
  43                     Method fromMethod = delta.getClass().getMethod(fromName);
  44                     Object value = fromMethod.invoke(delta, (Object[]) null);
  45                     if (value != null) {
  46                         toMethod.invoke(target, value);
  47                     }
  48                 } catch (Exception e) {
  49                     e.printStackTrace();
  50                     return false;
  51                 }
  52             }
  53         }
  54         return true;
  55     }
  56
  57     @Override
  58     public boolean neutronLoadBalancerHealthMonitorExists(String uuid) {
  59         return loadBalancerHealthMonitorDB.containsKey(uuid);
  60     }
  61
  62     @Override
  63     public NeutronLoadBalancerHealthMonitor getNeutronLoadBalancerHealthMonitor(String uuid) {
  64         if (!neutronLoadBalancerHealthMonitorExists(uuid)) {
  65             logger.debug("No LoadBalancerHealthMonitor has Been Defined");
  66             return null;
  67         }
  68         return loadBalancerHealthMonitorDB.get(uuid);
  69     }
  70
  71     @Override
  72     public List<NeutronLoadBalancerHealthMonitor> getAllNeutronLoadBalancerHealthMonitors() {
  73         Set<NeutronLoadBalancerHealthMonitor> allLoadBalancerHealthMonitors = new HashSet<NeutronLoadBalancerHealthMonitor>();
  74         for (Entry<String, NeutronLoadBalancerHealthMonitor> entry : loadBalancerHealthMonitorDB.entrySet()) {
  75             NeutronLoadBalancerHealthMonitor loadBalancerHealthMonitor = entry.getValue();
  76             allLoadBalancerHealthMonitors.add(loadBalancerHealthMonitor);
  77         }
  78         logger.debug("Exiting getLoadBalancerHealthMonitors, Found {} OpenStackLoadBalancerHealthMonitor", allLoadBalancerHealthMonitors.size());
  79         List<NeutronLoadBalancerHealthMonitor> ans = new ArrayList<NeutronLoadBalancerHealthMonitor>();
  80         ans.addAll(allLoadBalancerHealthMonitors);
  81         return ans;
  82     }
  83
  84     @Override
  85     public boolean addNeutronLoadBalancerHealthMonitor(NeutronLoadBalancerHealthMonitor input) {
  86         if (neutronLoadBalancerHealthMonitorExists(input.getLoadBalancerHealthMonitorID())) {
  87             return false;
  88         }
  89         loadBalancerHealthMonitorDB.putIfAbsent(input.getLoadBalancerHealthMonitorID(), input);
  90         //TODO: add code to find INeutronLoadBalancerHealthMonitorAware services and call newtorkCreated on them
  91         return true;
  92     }
  93
  94     @Override
  95     public boolean removeNeutronLoadBalancerHealthMonitor(String uuid) {
  96         if (!neutronLoadBalancerHealthMonitorExists(uuid)) {
  97             return false;
  98         }
  99         loadBalancerHealthMonitorDB.remove(uuid);
 100         //TODO: add code to find INeutronLoadBalancerHealthMonitorAware services and call newtorkDeleted on them
 101         return true;
 102     }
 103
 104     @Override
 105     public boolean updateNeutronLoadBalancerHealthMonitor(String uuid, NeutronLoadBalancerHealthMonitor delta) {
 106         if (!neutronLoadBalancerHealthMonitorExists(uuid)) {
 107             return false;
 108         }
 109         NeutronLoadBalancerHealthMonitor target = loadBalancerHealthMonitorDB.get(uuid);
 110         return overwrite(target, delta);
 111     }
 112
 113     @Override
 114     public boolean neutronLoadBalancerHealthMonitorInUse(String loadBalancerHealthMonitorUUID) {
 115         return !neutronLoadBalancerHealthMonitorExists(loadBalancerHealthMonitorUUID);
 116     }
 117 }