| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.core5.pool; |
| |
| import java.io.Serializable; |
| |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| |
| /** |
| * Pool statistics. |
| * <p> |
| * The total number of connections in the pool is equal to {@code available} plus {@code leased}. |
| * </p> |
| * |
| * @since 4.2 |
| */ |
| @Contract(threading = ThreadingBehavior.IMMUTABLE) |
| public class PoolStats implements Serializable { |
| |
| private static final long serialVersionUID = -2807686144795228544L; |
| |
| private final int leased; |
| private final int pending; |
| private final int available; |
| private final int max; |
| |
| public PoolStats(final int leased, final int pending, final int free, final int max) { |
| super(); |
| this.leased = leased; |
| this.pending = pending; |
| this.available = free; |
| this.max = max; |
| } |
| |
| /** |
| * Gets the number of persistent connections tracked by the connection manager currently being used to execute |
| * requests. |
| * <p> |
| * The total number of connections in the pool is equal to {@code available} plus {@code leased}. |
| * </p> |
| * |
| * @return the number of persistent connections. |
| */ |
| public int getLeased() { |
| return this.leased; |
| } |
| |
| /** |
| * Gets the number of connection requests being blocked awaiting a free connection. This can happen only if there |
| * are more worker threads contending for fewer connections. |
| * |
| * @return the number of connection requests being blocked awaiting a free connection. |
| */ |
| public int getPending() { |
| return this.pending; |
| } |
| |
| /** |
| * Gets the number idle persistent connections. |
| * <p> |
| * The total number of connections in the pool is equal to {@code available} plus {@code leased}. |
| * </p> |
| * |
| * @return number idle persistent connections. |
| */ |
| public int getAvailable() { |
| return this.available; |
| } |
| |
| /** |
| * Gets the maximum number of allowed persistent connections. |
| * |
| * @return the maximum number of allowed persistent connections. |
| */ |
| public int getMax() { |
| return this.max; |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuilder buffer = new StringBuilder(); |
| buffer.append("[leased: "); |
| buffer.append(this.leased); |
| buffer.append("; pending: "); |
| buffer.append(this.pending); |
| buffer.append("; available: "); |
| buffer.append(this.available); |
| buffer.append("; max: "); |
| buffer.append(this.max); |
| buffer.append("]"); |
| return buffer.toString(); |
| } |
| |
| } |