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package org.bouncycastle.cms;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.cms.CMSObjectIdentifiers;
/**
* a holding class for a file of data to be processed.
*/
public class CMSProcessableFile
implements CMSTypedData, CMSReadable
{
private static final int DEFAULT_BUF_SIZE = 32 * 1024;
private final ASN1ObjectIdentifier type;
private final File file;
private final byte[] buf;
public CMSProcessableFile(
File file)
{
this(file, DEFAULT_BUF_SIZE);
}
public CMSProcessableFile(
File file,
int bufSize)
{
this(new ASN1ObjectIdentifier(CMSObjectIdentifiers.data.getId()), file, bufSize);
}
public CMSProcessableFile(
ASN1ObjectIdentifier type,
File file,
int bufSize)
{
this.type = type;
this.file = file;
buf = new byte[bufSize];
}
public InputStream getInputStream()
throws IOException, CMSException
{
return new BufferedInputStream(new FileInputStream(file), DEFAULT_BUF_SIZE);
}
public void write(OutputStream zOut)
throws IOException, CMSException
{
FileInputStream fIn = new FileInputStream(file);
int len;
while ((len = fIn.read(buf, 0, buf.length)) > 0)
{
zOut.write(buf, 0, len);
}
fIn.close();
}
/**
* Return the file handle.
*/
public Object getContent()
{
return file;
}
public ASN1ObjectIdentifier getContentType()
{
return type;
}
}
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