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/*
* ====================================================================
* 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 ch.boye.httpclientandroidlib.pool;
import ch.boye.httpclientandroidlib.annotation.Immutable;
/**
* Pool statistics.
* <p>
* The total number of connections in the pool is equal to {@code available} plus {@code leased}.
* </p>
*
* @since 4.2
*/
@Immutable
public class PoolStats {
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();
}
}
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