Example usage for org.apache.commons.pool2 PooledObject printStackTrace

Introduction

In this page you can find the example usage for org.apache.commons.pool2 PooledObject printStackTrace.

Prototype

void printStackTrace(PrintWriter writer);

Source Link

Document

Prints the stack trace of the code that borrowed this pooled object and the stack trace of the last code to use this object (if available) to the supplied writer.

Usage

From source file:JDBCPool.dbcp.demo.sourcecode.GenericObjectPool.java

/**
 * Recover abandoned objects which have been checked out but
 * not used since longer than the removeAbandonedTimeout.
 *
 * @param ac The configuration to use to identify abandoned objects
 *///from w w  w  .ja v a 2  s .c o m
private void removeAbandoned(AbandonedConfig ac) {
    // Generate a list of abandoned objects to remove
    final long now = System.currentTimeMillis();
    final long timeout = now - (ac.getRemoveAbandonedTimeout() * 1000L);
    ArrayList<PooledObject<T>> remove = new ArrayList<PooledObject<T>>();
    Iterator<PooledObject<T>> it = allObjects.values().iterator();
    while (it.hasNext()) {
        PooledObject<T> pooledObject = it.next();
        synchronized (pooledObject) {
            if (pooledObject.getState() == PooledObjectState.ALLOCATED
                    && pooledObject.getLastUsedTime() <= timeout) {
                pooledObject.markAbandoned();
                remove.add(pooledObject);
            }
        }
    }

    // Now remove the abandoned objects
    Iterator<PooledObject<T>> itr = remove.iterator();
    while (itr.hasNext()) {
        PooledObject<T> pooledObject = itr.next();
        if (ac.getLogAbandoned()) {
            pooledObject.printStackTrace(ac.getLogWriter());
        }
        try {
            invalidateObject(pooledObject.getObject());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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