InfoMessage.java

package diskCacheV111.vehicles;

import javax.annotation.Nullable;
import javax.security.auth.Subject;

import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.concurrent.atomic.AtomicLong;

import dmg.cells.nucleus.CellAddressCore;

import org.dcache.auth.Subjects;

public abstract class InfoMessage implements Serializable
{
    private static final SimpleDateFormat __dateFormat = new SimpleDateFormat("MM.dd HH:mm:ss");

    private static final AtomicLong COUNTER = new  AtomicLong(0);

    private final String _cellType;
    private final String _messageType;

    @Deprecated // Since 2.17, remove after next golden release
    private final String _cellName = null;

    private CellAddressCore _cellAddress;

    private long _timeQueued;
    private int _resultCode;
    private String _message = "";
    private final long _timestamp = System.currentTimeMillis();
    private String _transaction;
    private final long _transactionID = COUNTER.incrementAndGet();
    private Subject _subject;

    private static final long serialVersionUID = -8035876156296337291L;

    public InfoMessage(String messageType, String cellType, CellAddressCore address)
    {
        _cellAddress = address;
        _cellType = cellType;
        _messageType = messageType;
    }

    public abstract void accept(InfoMessageVisitor visitor);

    @Override
    public String toString()
    {
        return "InfoMessage{" +
               "cellType='" + _cellType + '\'' +
               ", messageType='" + _messageType + '\'' +
               ", cellAddress=" + _cellAddress +
               ", timeQueued=" + _timeQueued +
               ", resultCode=" + _resultCode +
               ", message='" + _message + '\'' +
               ", timestamp=" + _timestamp +
               ", transaction='" + _transaction + '\'' +
               ", transactionID=" + _transactionID +
               ", subject=" + _subject +
               '}';
    }

    public void setResult(int resultCode, String resultMessage)
    {
        _message = resultMessage;
        _resultCode = resultCode;
    }

    public void setTimeQueued(long timeQueued)
    {
        _timeQueued = timeQueued;
    }

    public long getTimeQueued()
    {
        return _timeQueued;
    }

    public String getCellType()
    {
        return _cellType;
    }

    public String getMessageType()
    {
        return _messageType;
    }

    @Nullable
    public CellAddressCore getCellAddress()
    {
        return _cellAddress;
    }

    public String getMessage()
    {
        return _message;
    }

    public int getResultCode()
    {
        return _resultCode;
    }

    public long getTimestamp()
    {
        return _timestamp;
    }

    public synchronized void setTransaction(String transaction)
    {
        _transaction = transaction;
    }

    public synchronized String getTransaction()
    {

        if (_transaction == null) {
            String sb = this.getCellType() + ':' + this.getCellAddress() + ':' +
                        this.getTimestamp() + '-' + _transactionID;
            _transaction = sb;
        }
        return _transaction;
    }

    public void setSubject(Subject subject)
    {
        _subject = subject;
    }

    public Subject getSubject()
    {
        /* The null check ensures compatibility with pools earlier
         * than version 2.1. Those pools do not include a subject
         * field.
         */
        return (_subject == null) ? Subjects.ROOT : _subject;
    }

    private void readObject(java.io.ObjectInputStream stream)
            throws java.io.IOException, ClassNotFoundException
    {
        stream.defaultReadObject();

        if (_cellName != null) {
            _cellAddress = new CellAddressCore(_cellName);
        }
    }
}