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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 and up. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

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package org.bouncycastle.est;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * Exception emitted by EST classes.
 */
public class ESTException
    extends IOException
{
    private Throwable cause;

    private InputStream body;
    private int statusCode;

    private static final long MAX_ERROR_BODY = 8192;

    public ESTException(String msg)
    {
        this(msg, null);
    }

    public ESTException(String msg, Throwable cause)
    {
        super(msg);
        this.cause = cause;
        body = null;
        statusCode = 0;
    }

    public ESTException(String message, Throwable cause, int statusCode, InputStream body)
    {
        super(message);
        this.cause = cause;
        this.statusCode = statusCode;
        if (body != null)
        {
            byte[] b = new byte[8192];
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            try
            {
                int i = body.read(b);
                while (i >= 0)
                {
                    if (bos.size() + i > MAX_ERROR_BODY)
                    {
                        i = (int)MAX_ERROR_BODY - bos.size();
                        bos.write(b, 0, i);
                        break;
                    }
                    bos.write(b, 0, i);
                    i = body.read(b);
                }
                bos.flush();
                bos.close();
                this.body = new ByteArrayInputStream(bos.toByteArray());
                body.close();
            }
            catch (Exception ex)
            {
                // This is a best effort read, input stream could be dead by this point.
            }
        }
        else
        {
            this.body = null;
        }
    }

    public Throwable getCause()
    {
        return cause;
    }
    
    public String getMessage()
    {
        return super.getMessage() + " HTTP Status Code: " + statusCode;
    }

    public InputStream getBody()
    {
        return body;
    }

    public int getStatusCode()
    {
        return statusCode;
    }

}