AbstractScopedHook.java

//
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 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
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 * See @authors listed below
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package org.dcm4chee.hooks;

import static java.lang.String.format;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Alexander Hoermandinger <alexander.hoermandinger@agfa.com>
 *
 */
public abstract class AbstractScopedHook implements HookA {
    private static final Logger LOG = LoggerFactory.getLogger(AbstractScopedHook.class);
    
    private static int instanceCount = 0;
    private final int hash;
    private int callCount;
    
    public AbstractScopedHook() {
        instanceCount++;
        this.hash = System.identityHashCode(this);
    }
    
    
    @Override
    public int callCount() {
        LOG.debug(format("Calling %s[%s].callCount()", this.getClass().getSimpleName(), hash));
        LOG.debug(format("Existing instances of %s: %s", this.getClass().getSimpleName(), instanceCount));
        
        return ++callCount;
    }

}