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Viewing changes to src/org/bouncycastle/cms/CMSProcessableFile.java

  • Committer: Brian Thomason
  • Date: 2011-12-20 17:20:32 UTC
  • Revision ID: brian.thomason@canonical.com-20111220172032-rdtm13jgdxtksacr
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src/org/bouncycastle/cms/CMSProcessableFile.java
 
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package org.bouncycastle.cms;
 
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import java.io.BufferedInputStream;
 
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import java.io.File;
 
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import java.io.FileInputStream;
 
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import java.io.IOException;
 
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import java.io.InputStream;
 
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import java.io.OutputStream;
 
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import org.bouncycastle.asn1.ASN1ObjectIdentifier;
 
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import org.bouncycastle.asn1.cms.CMSObjectIdentifiers;
 
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/**
 
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 * a holding class for a file of data to be processed.
 
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 */
 
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public class CMSProcessableFile
 
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    implements CMSTypedData, CMSReadable
 
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{
 
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    private static final int DEFAULT_BUF_SIZE = 32 * 1024;
 
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    private final ASN1ObjectIdentifier type;
 
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    private final File file;
 
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    private final byte[] buf;
 
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    public CMSProcessableFile(
 
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        File file)
 
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    {
 
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        this(file, DEFAULT_BUF_SIZE);
 
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    }
 
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    public CMSProcessableFile(
 
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        File file,
 
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        int  bufSize)
 
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    {
 
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        this(new ASN1ObjectIdentifier(CMSObjectIdentifiers.data.getId()), file, bufSize);
 
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    }
 
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    public CMSProcessableFile(
 
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        ASN1ObjectIdentifier type,
 
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        File file,
 
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        int  bufSize)
 
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    {
 
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        this.type = type;
 
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        this.file = file;
 
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        buf = new byte[bufSize];
 
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    }
 
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    public InputStream getInputStream()
 
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        throws IOException, CMSException
 
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    {
 
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        return new BufferedInputStream(new FileInputStream(file), DEFAULT_BUF_SIZE);
 
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    }
 
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    public void write(OutputStream zOut)
 
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        throws IOException, CMSException
 
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    {
 
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        FileInputStream     fIn = new FileInputStream(file);
 
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        int                 len;
 
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        while ((len = fIn.read(buf, 0, buf.length)) > 0)
 
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        {
 
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            zOut.write(buf, 0, len);
 
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        }
 
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        fIn.close();
 
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    }
 
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    /**
 
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     * Return the file handle.
 
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     */
 
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    public Object getContent()
 
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    {
 
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        return file;
 
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    }
 
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    public ASN1ObjectIdentifier getContentType()
 
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    {
 
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        return type;
 
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    }
 
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}