Java tutorial
/* * 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.commons.pool2.impl; import java.io.PrintWriter; import java.io.StringWriter; import java.text.SimpleDateFormat; import org.apache.commons.pool2.PooledObject; /** * Implementation of object that is used to provide information on pooled * objects via JMX. * * @since 2.0 */ public class DefaultPooledObjectInfo implements DefaultPooledObjectInfoMBean { private final PooledObject<?> pooledObject; /** * Create a new instance for the given pooled object. * * @param pooledObject The pooled object that this instance will represent */ public DefaultPooledObjectInfo(PooledObject<?> pooledObject) { this.pooledObject = pooledObject; } @Override public long getCreateTime() { return pooledObject.getCreateTime(); } @Override public String getCreateTimeFormatted() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z"); return sdf.format(Long.valueOf(pooledObject.getCreateTime())); } @Override public long getLastBorrowTime() { return pooledObject.getLastBorrowTime(); } @Override public String getLastBorrowTimeFormatted() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z"); return sdf.format(Long.valueOf(pooledObject.getLastBorrowTime())); } @Override public String getLastBorrowTrace() { StringWriter sw = new StringWriter(); pooledObject.printStackTrace(new PrintWriter(sw)); return sw.toString(); } @Override public long getLastReturnTime() { return pooledObject.getLastReturnTime(); } @Override public String getLastReturnTimeFormatted() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z"); return sdf.format(Long.valueOf(pooledObject.getLastReturnTime())); } @Override public String getPooledObjectType() { return pooledObject.getObject().getClass().getName(); } @Override public String getPooledObjectToString() { return pooledObject.getObject().toString(); } @Override public long getBorrowedCount() { // TODO Simplify this once getBorrowedCount has been added to PooledObject if (pooledObject instanceof DefaultPooledObject) { return ((DefaultPooledObject<?>) pooledObject).getBorrowedCount(); } else { return -1; } } }