/* * Java SMPP API * Copyright (C) 1998 - 2001 by Oran Kelly *  * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. *  * This library 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 * Lesser General Public License for more details. *  * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA *  * A copy of the LGPL can be viewed at http://www.gnu.org/copyleft/lesser.html * Java SMPP API author: orank@users.sf.net * Java SMPP API Homepage: http://smppapi.sourceforge.net/ */package ie.omk.smpp.message;import java.io.*;import ie.omk.smpp.SMPPException;import ie.omk.smpp.BadCommandIDException;import ie.omk.smpp.NumberOutOfRangeException;import ie.omk.smpp.util.GSMConstants;import ie.omk.smpp.util.SMPPIO;import ie.omk.debug.Debug;/** Query the last number of messages sent from a certain ESME.  * Relevant inherited fields from SMPPPacket:<br>  * <ul>  *   source<br>  * </ul>  * @author Oran Kelly  * @version 1.0  */public class QueryLastMsgs    extends ie.omk.smpp.message.SMPPRequest{    /** Number of messages to look up */    private int msgCount;    /** Construct a new QueryLastMsgs.      */    public QueryLastMsgs()    {	super(ESME_QUERY_LAST_MSGS);	msgCount = 0;    }    /** Construct a new QueryLastMsgs with specified sequence number.      * @param seqNum The sequence number to use      * @deprecated      */    public QueryLastMsgs(int seqNum)    {	super(ESME_QUERY_LAST_MSGS, seqNum);	msgCount = 0;    }    /** Read in a QueryLastMsgs from an InputStream.  A full packet,      * including the header fields must exist in the stream.      * @param in The InputStream to read from      * @exception java.io.IOException if there's an error reading from the      * input stream.      */    public QueryLastMsgs(InputStream in)	throws java.io.IOException, ie.omk.smpp.SMPPException    {	super(in);	if (getCommandId() != SMPPPacket.ESME_QUERY_LAST_MSGS)	    throw new BadCommandIDException(SMPPPacket.ESME_QUERY_LAST_MSGS,		    getCommandId());	if (getCommandStatus() != 0)	    return;	this.source = new SmeAddress(in);	this.msgCount = SMPPIO.readInt(in, 1);    }    /** Set the number of messages to look up.      * @param n The message count (1 &lt;= n &lt;= 100)      * @exception ie.omk.smpp.NumberOutOfRangeException if the count is set      * outside the valid range.      */    public void setMsgCount(int n)	throws ie.omk.smpp.SMPPException    {	if(n > 0 && n <= 100) {	    this.msgCount = n;	} else {	    throw new NumberOutOfRangeException(1, 100);	}    }    /** Get the number of messages being requested. */    public int getMsgCount()    {	return (msgCount);    }    /** Return the number of bytes this packet would be encoded as to an      * OutputStream.      * @return the number of bytes this packet would encode as.      */    public int getCommandLen()    {	int len = (getHeaderLen()		+ ((source != null) ? source.size() : 3));	// 1 1-byte integer	return (len + 1);    }    /** Write a byte representation of this packet to an OutputStream      * @param out The OutputStream to write to      * @exception java.io.IOException if there's an error writing to the      * output stream.      */    protected void encodeBody(OutputStream out)	throws java.io.IOException, ie.omk.smpp.SMPPException    {	if(source != null) {	    source.writeTo(out);	} else {	    // Write ton=0(null), npi=0(null), address=\0(nul)	    new SmeAddress(GSMConstants.GSM_TON_UNKNOWN,		    GSMConstants.GSM_NPI_UNKNOWN, "").writeTo(out);	}	SMPPIO.writeInt(msgCount, 1, out);    }    /** Convert this packet to a String. Not to be interpreted programmatically,      * it's just dead handy for debugging!      */    public String toString()    {	return new String("query_last_msgs");    }}