| /* |
| * 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.geode.cache.server; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.DataSerializable; |
| |
| |
| /** |
| * A data object containing the load information for a cache server. This object is returned from |
| * {@link ServerLoadProbe#getLoad(ServerMetrics)} and indicates how heavily loaded the server is. |
| * |
| * The values returned by {@link #getConnectionLoad()} and {@link #getSubscriptionConnectionLoad()} |
| * can be any number greater than 0. A larger load value means that the server has more load. |
| * |
| * The values returned by getLoadPerConnection() and getLoadPerSubscriptionConnection are used to |
| * estimate the effect of new connections before the connects are actually made to this server. The |
| * load is estimated as <code> |
| * load + loadPerConnection*numAdditionalConnections. |
| * </code> |
| * |
| * @since GemFire 5.7 |
| * |
| */ |
| public final class ServerLoad implements DataSerializable { |
| private static final long serialVersionUID = -4498005291184650907L; |
| private float connectionLoad; |
| private float subscriberLoad; |
| private float loadPerConnection; |
| private float loadPerSubscriber; |
| |
| |
| public ServerLoad(float connectionLoad, float loadPerConnection, float subscriptionConnectionLoad, |
| float loadPerSubscriptionConnection) { |
| super(); |
| this.connectionLoad = connectionLoad; |
| this.subscriberLoad = subscriptionConnectionLoad; |
| this.loadPerConnection = loadPerConnection; |
| this.loadPerSubscriber = loadPerSubscriptionConnection; |
| } |
| |
| public ServerLoad() { |
| |
| } |
| |
| /** |
| * Get the load on the server due to client to server connections. |
| * |
| * @return a float greater than or equals to 0 |
| */ |
| public float getConnectionLoad() { |
| return connectionLoad; |
| } |
| |
| /** |
| * Get an estimate of the how much load each new connection will add to this server. The locator |
| * uses this information to estimate the load on the server before it receives a new load |
| * snapshot. |
| * |
| * @return a float greater than or equals to 0 |
| */ |
| public float getLoadPerConnection() { |
| return loadPerConnection; |
| } |
| |
| /** |
| * Get the load on the server due to subscription connections. |
| * |
| * @return a float greater than or equals to 0 |
| */ |
| public float getSubscriptionConnectionLoad() { |
| return subscriberLoad; |
| } |
| |
| /** |
| * Get an estimate of the how much load each new subscriber will add to this server. The locator |
| * uses this information to estimate the load on the server before it receives a new load |
| * snapshot. |
| * |
| * @return a float greater than or equals to 0 |
| */ |
| public float getLoadPerSubscriptionConnection() { |
| return loadPerSubscriber; |
| } |
| |
| /** |
| * Set the load due to client to server connections. |
| */ |
| public void setConnectionLoad(float connectionLoad) { |
| this.connectionLoad = connectionLoad; |
| } |
| |
| /** |
| * Set the load due to client subscriptions. |
| */ |
| public void setSubscriptionConnectionLoad(float subscriberLoad) { |
| this.subscriberLoad = subscriberLoad; |
| } |
| |
| /** |
| * Set the estimated load per connection. |
| */ |
| public void setLoadPerConnection(float loadPerConnection) { |
| this.loadPerConnection = loadPerConnection; |
| } |
| |
| /** |
| * Set the estimated load per subscription connection. |
| */ |
| public void setLoadPerSubscriptionConnection(float loadPerSubscriber) { |
| this.loadPerSubscriber = loadPerSubscriber; |
| } |
| |
| @Override |
| public void toData(DataOutput out) throws IOException { |
| out.writeFloat(connectionLoad); |
| out.writeFloat(loadPerConnection); |
| out.writeFloat(subscriberLoad); |
| out.writeFloat(loadPerSubscriber); |
| } |
| |
| @Override |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| connectionLoad = in.readFloat(); |
| loadPerConnection = in.readFloat(); |
| subscriberLoad = in.readFloat(); |
| loadPerSubscriber = in.readFloat(); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + Float.floatToIntBits(connectionLoad); |
| result = prime * result + Float.floatToIntBits(loadPerConnection); |
| result = prime * result + Float.floatToIntBits(loadPerSubscriber); |
| result = prime * result + Float.floatToIntBits(subscriberLoad); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| final ServerLoad other = (ServerLoad) obj; |
| if (Float.floatToIntBits(connectionLoad) != Float.floatToIntBits(other.connectionLoad)) |
| return false; |
| if (Float.floatToIntBits(loadPerConnection) != Float.floatToIntBits(other.loadPerConnection)) |
| return false; |
| if (Float.floatToIntBits(loadPerSubscriber) != Float.floatToIntBits(other.loadPerSubscriber)) |
| return false; |
| if (Float.floatToIntBits(subscriberLoad) != Float.floatToIntBits(other.subscriberLoad)) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return "Load(" + connectionLoad + ", " + loadPerConnection + ", " + subscriberLoad + ", " |
| + loadPerSubscriber + ")"; |
| } |
| } |