LogManagerOverride.java

package org.ripple.power.txns.btc;

import java.io.IOException;
import java.io.InputStream;
import java.util.logging.LogManager;

public class LogManagerOverride extends LogManager {

    /** Logging reconfiguration in progress */
    private volatile boolean loggingReconfiguration = false;

    /**
     * Create the JavaBitcoin log manager
     *
     * We will let the Java LogManager create its shutdown hook so that the
     * shutdown context will be set up properly.  However, we will intercept
     * the reset() method so we can delay the actual shutdown until we are
     * done terminating the JavaBitcoin processes.
     */
    public LogManagerOverride() {
        super();
    }

    /**
     * Reconfigure logging support using a configuration file
     *
     * @param       inStream            Input stream
     * @throws      IOException         Error reading input stream
     * @throws      SecurityException   Caller does not have LoggingPermission("control")
     */
    @Override
    public void readConfiguration(InputStream inStream) throws IOException, SecurityException {
        loggingReconfiguration = true;
        super.readConfiguration(inStream);
        loggingReconfiguration = false;
    }

    /**
     * Reset the log handlers
     *
     * This method is called to reset the log handlers.  We will forward the
     * call during logging reconfiguration but will ignore it otherwise.
     * This allows us to continue to use logging facilities during JavaBitcoin shutdown.
     */
    @Override
    public void reset() {
        if (loggingReconfiguration)
            super.reset();
    }

    /**
     * JavaBitcoin shutdown is complete, so we can now reset the log handlers.
     */
    public void logShutdown() {
        super.reset();
    }
}