FileLoggerHandlerFactory.java

/*
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package com.sun.enterprise.web.logger;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.logging.Formatter;

import javax.inject.Inject;
import org.jvnet.hk2.annotations.Optional;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PostConstruct;

/**
 * A factory for FileLoggerHandler.
 *
 * @author Shing Wai Chan
 */
@Service
public class FileLoggerHandlerFactory implements PostConstruct {

    @Inject @Optional
    private Formatter logFormatter;

    private static ConcurrentMap<String, FileLoggerHandler> map =
        new ConcurrentHashMap<String, FileLoggerHandler>();

    public void postConstruct() {
    }

    public synchronized FileLoggerHandler getHandler(String logFile) {
        FileLoggerHandler handler = map.get(logFile);
        if (handler == null) {
            handler = new FileLoggerHandler(logFile);
            if (logFormatter != null) {
                handler.setFormatter(logFormatter);
            }
            map.put(logFile, handler);
        }

        return handler;
    }

    public synchronized void removeHandler(String logFile) {
        map.remove(logFile);
    }
}