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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.
*/
package org.apache.tomcat.dbcp.pool2.impl;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Objects;
import org.apache.tomcat.dbcp.pool2.PooledObject;
/**
* Implements providing information on pooled
* objects via JMX.
*
* @since 2.0
*/
public class DefaultPooledObjectInfo implements DefaultPooledObjectInfoMBean {
private static final String PATTERN = "yyyy-MM-dd HH:mm:ss Z";
private final PooledObject<?> pooledObject;
/**
* Constructs a new instance for the given pooled object.
*
* @param pooledObject The pooled object that this instance will represent
* @throws NullPointerException if {@code obj} is {@code null}
*/
public DefaultPooledObjectInfo(final PooledObject<?> pooledObject) {
this.pooledObject = Objects.requireNonNull(pooledObject, "pooledObject");
}
@Override
public long getBorrowedCount() {
return pooledObject.getBorrowedCount();
}
@Override
public long getCreateTime() {
return pooledObject.getCreateInstant().toEpochMilli();
}
@Override
public String getCreateTimeFormatted() {
return getTimeMillisFormatted(getCreateTime());
}
@Override
public long getLastBorrowTime() {
return pooledObject.getLastBorrowInstant().toEpochMilli();
}
@Override
public String getLastBorrowTimeFormatted() {
return getTimeMillisFormatted(getLastBorrowTime());
}
@Override
public String getLastBorrowTrace() {
final StringWriter sw = new StringWriter();
pooledObject.printStackTrace(new PrintWriter(sw));
return sw.toString();
}
@Override
public long getLastReturnTime() {
return pooledObject.getLastReturnInstant().toEpochMilli();
}
@Override
public String getLastReturnTimeFormatted() {
return getTimeMillisFormatted(getLastReturnTime());
}
@Override
public String getPooledObjectToString() {
return Objects.toString(pooledObject.getObject(), null);
}
@Override
public String getPooledObjectType() {
final Object object = pooledObject.getObject();
return object != null ? object.getClass().getName() : null;
}
private String getTimeMillisFormatted(final long millis) {
return new SimpleDateFormat(PATTERN).format(Long.valueOf(millis));
}
/**
* @since 2.4.3
*/
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append("DefaultPooledObjectInfo [pooledObject=");
builder.append(pooledObject);
builder.append("]");
return builder.toString();
}
}
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