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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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package com.pdd.pop.ext.glassfish.grizzly;

import java.io.IOException;

/**
 * An object, describing the reason why {@link Connection} was closed.
 * 
 * @author Alexey Stashok
 */
public class CloseReason {
    private static final IOException LOCALLY_CLOSED;
    private static final IOException REMOTELY_CLOSED;
    
    public static final CloseReason LOCALLY_CLOSED_REASON;
    public static final CloseReason REMOTELY_CLOSED_REASON;
    
    static {
        LOCALLY_CLOSED = new IOException("Locally closed");
        LOCALLY_CLOSED.setStackTrace(new StackTraceElement[0]);
        
        REMOTELY_CLOSED = new IOException("Remotely closed");
        REMOTELY_CLOSED.setStackTrace(new StackTraceElement[0]);

        LOCALLY_CLOSED_REASON =
                new CloseReason(com.pdd.pop.ext.glassfish.grizzly.CloseType.LOCALLY, LOCALLY_CLOSED);
        REMOTELY_CLOSED_REASON =
                new CloseReason(com.pdd.pop.ext.glassfish.grizzly.CloseType.REMOTELY, REMOTELY_CLOSED);
    }
    
    private final CloseType type;
    private final IOException cause;

    public CloseReason(final CloseType type, final IOException cause) {
        this.type = type;
        this.cause = cause != null
                ? cause
                : (type == CloseType.LOCALLY
                          ? LOCALLY_CLOSED
                          : REMOTELY_CLOSED);
    }

    /**
     * Return information whether {@link Connection} was closed locally or remotely.
     * 
     * @return information whether {@link Connection} was closed locally or remotely
     */
    public CloseType getType() {
        return type;
    }

    /**
     * Returns information about an error, that caused the {@link Connection} to
     * be closed.
     * 
     * If the cause wasn't specified by user - the default value {@link #DEFAULT_CAUSE} will be returned.
     * 
     * @return information about an error, that caused the {@link Connection} to
     * be closed
     */
    public IOException getCause() {
        return cause;
    }
}




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