com.ibm.as400.access.AS400StrSvrReplyDS Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jt400 Show documentation
The Open Source version of the IBM Toolbox for Java
There is a newer version: 20.0.8
///////////////////////////////////////////////////////////////////////////////
//                                                                             
// JTOpen (IBM Toolbox for Java - OSS version)                                 
//                                                                             
// Filename: AS400StrSvrReplyDS.java
//                                                                             
// The source code contained herein is licensed under the IBM Public License   
// Version 1.0, which has been approved by the Open Source Initiative.         
// Copyright (C) 1997-2001 International Business Machines Corporation and     
// others. All rights reserved.                                                
//                                                                             
///////////////////////////////////////////////////////////////////////////////

package com.ibm.as400.access;

import java.io.IOException;
import java.io.InputStream;

// A class representing a reply to a "start server" request (class AS400StrSvrDS) data stream.
class AS400StrSvrReplyDS extends ClientAccessDataStream
{
  private static final String copyright = "Copyright (C) 1997-2001 International Business Machines Corporation and others.";

    /**
     Generate a new instance of this type.
     @return a reference to the new instance
     **/
    public Object getNewDataStream()
    {
      return new AS400StrSvrReplyDS();
    }

    int getRC()
    {
        return get32bit(20);
    }

    byte[] getUserIdBytes()
    {
        int offset = findCP(0x1104);
        if (offset == -1) return null;

        byte[] userIdBytes = {(byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40, (byte)0x40};
        System.arraycopy(data_, offset + 10, userIdBytes, 0, get32bit(offset) - 10);
        return userIdBytes;
    }

    byte[] getJobNameBytes()
    {
        int offset = findCP(0x111F);
        if (offset == -1) return new byte[0];

        byte[] jobNameBytes = new byte[get32bit(offset) - 10];
        System.arraycopy(data_, offset + 10, jobNameBytes, 0, jobNameBytes.length);
        return jobNameBytes;
    }

    int findCP(int cp)
    {
        int offset = 24;
        while (offset < data_.length - 1)
        {
            if (get16bit(offset + 4) == cp) return offset;
            offset += get32bit(offset);
        }
        return -1;
    }

    void read(InputStream in) throws IOException
    {
        if (Trace.traceOn_) Trace.log(Trace.DIAGNOSTIC, "Receiving start server reply..."); //@P0C

        // Receive the header.
        byte[] header = new byte[20];
        if (readFromStream(in, header, 0, 20) < 20)
        {
            if (Trace.traceOn_) Trace.log(Trace.ERROR, "Failed to read all of the start server reply header."); //@P0C
            throw new ConnectionDroppedException(ConnectionDroppedException.CONNECTION_DROPPED);
        }

        // Allocate bytes for datastream.
        data_ = new byte[BinaryConverter.byteArrayToInt(header, 0)];
        System.arraycopy(header, 0, data_, 0, 20);

        // Read in the rest of the data.
        readAfterHeader(in);
    }

    /**
     Generates a hash code for this data stream.
     @return the hash code
     **/
    public int hashCode()
    {
      return 0xF002;
    }
}