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jPOS is an ISO-8583 based financial transaction library/framework that can be customized and extended in order to implement financial interchanges.

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/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.jpos.util;

import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.sql.SQLException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author @apr
 */
public class LogEvent {
    private LogSource source;
    private String tag;
    private final List payLoad;
    private long createdAt;
    private long dumpedAt;
    private boolean honorSourceLogger;

    public LogEvent (String tag) {
        super();
        this.tag = tag;
        createdAt = System.currentTimeMillis();
        this.payLoad = Collections.synchronizedList (new ArrayList());
    }

    public LogEvent () {
        this ("info");
    }
    public LogEvent (String tag, Object msg) {
        this (tag);
        addMessage(msg);
    }
    public LogEvent (LogSource source, String tag) {
        this (tag);
        this.source  = source;
        honorSourceLogger = true;
    }
    public LogEvent (LogSource source, String tag, Object msg) {
        this (tag);
        this.source  = source;
        honorSourceLogger = true;
        addMessage(msg);
    }
    public String getTag() {
        return tag;
    }
    public void addMessage (Object msg) {
        payLoad.add (msg);
    }
    public void addMessage (String tagname, String message) {
        payLoad.add ("<"+tagname+">"+message+"");
    }
    public LogSource getSource() {
        return source;
    }
    public void setSource(LogSource source) {
        this.source = source;
    }
    protected String dumpHeader (PrintStream p, String indent) {
        if (dumpedAt == 0L)
            dumpedAt = System.currentTimeMillis();
        Date date = new Date (dumpedAt);
        DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss.SSS z yyyy", Locale.US);
        StringBuilder sb = new StringBuilder(indent);
        sb.append ("');
        p.println (sb.toString());
        return indent + "  ";
    }
    protected void dumpTrailer (PrintStream p, String indent) {
        p.println (indent + "");
    }
    public void dump (PrintStream p, String outer) {
        String indent = dumpHeader (p, outer);
        if (payLoad.isEmpty()) {
            if (tag != null)
                p.println (indent + "<" + tag + "/>");
        }
        else {
            String newIndent;
            if (tag != null) {
                p.println (indent + "<" + tag + ">");
                newIndent = indent + "  ";
            } else
                newIndent = "";
            synchronized (payLoad) {
                for (Object o : payLoad) {
                    if (o instanceof Loggeable)
                        ((Loggeable) o).dump(p, newIndent);
                    else if (o instanceof SQLException) {
                        SQLException e = (SQLException) o;
                        p.println(newIndent + ""
                                + e.getMessage() + "");
                        p.println(newIndent + ""
                                + e.getSQLState() + "");
                        p.println(newIndent + ""
                                + e.getErrorCode() + "");
                        ((Throwable) o).printStackTrace(p);
                    } else if (o instanceof Throwable) {
                        p.println(newIndent + "");
                        p.print(newIndent);
                        ((Throwable) o).printStackTrace(p);
                        p.println(newIndent + "");
                    } else if (o instanceof Object[]) {
                        Object[] oa = (Object[]) o;
                        p.print(newIndent + "[");
                        for (int j = 0; j < oa.length; j++) {
                            if (j > 0)
                                p.print(",");
                            p.print(oa[j].toString());
                        }
                        p.println("]");
                    } else if (o instanceof Element) {
                        p.println("");
                        p.println(newIndent + "");
                    } else if (o != null) {
                        p.println(newIndent + o.toString());
                    } else {
                        p.println(newIndent + "null");
                    }
            }
            }
            if (tag != null)
                p.println (indent + "");
        }
        dumpTrailer (p, outer);
    }
    public String getRealm() {
        return source != null ? source.getRealm() : "";
    }

    /**
     * WARNING: payLoad is a SynchronizedList. If you intend to get a reference
     * to it in order to iterate over the list, you need to synchronize on the
     * returned object.
     *
     * 
     *     synchronized (evt.getPayLoad()) {
     *        Iterator iter = evt.getPayLoad().iterator();
     *        while (iter.hasNext()) {
     *            ...
     *            ...
     *
     *        }
     *     }
     * 

     * @return payLoad, which is a SynchronizedList
     */
    public List getPayLoad() {
        return payLoad;
    }
    public String toString(String indent) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintStream p = new PrintStream (baos);
        dump (p, indent);
        return baos.toString();
    }
    public String toString() {
        return toString("");
    }

    /**
     * This is a hack for backward compatibility after accepting PR67
     * @see PR67
     * @return true if ISOSource has been set
     */
    public boolean isHonorSourceLogger() {
        return honorSourceLogger;
    }
}
    

    

    

            

    

            



    
    






    
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