Examples of java.io.SequenceInputStream

java.io.SequenceInputStream
A SequenceInputStream represents the logical concatenation of other input streams. It starts out with an ordered collection of input streams and reads from the first one until end of file is reached, whereupon it reads from the second one, and so on, until end of file is reached on the last of the contained input streams. @author Author van Hoff @version 1.33, 06/07/06 @since JDK1.0

        InputStream input = getInstance(fileName).openFileInputStream(fileName);
        for (int i = 1;; i++) {
            String f = getFileName(fileName, i);
            if (getInstance(f).exists(f)) {
                InputStream i2 = getInstance(f).openFileInputStream(f);
                input = new SequenceInputStream(input, i2);
            } else {
                break;
            }
        }
        return input;

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     */
    private void readTrailer() throws IOException {
  InputStream in = this.in;
  int n = inf.getRemaining();
  if (n > 0) {
      in = new SequenceInputStream(
      new ByteArrayInputStream(buf, len - n, n), in);
  }
  // Uses left-to-right evaluation order
  if ((readUInt(in) != crc.getValue()) ||
      // rfc1952; ISIZE is the input size modulo 2^32

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   }


   protected InputStream addHeaderToHeadlessStream(InputStream is)
           throws UnsupportedEncodingException
   {
      return new SequenceInputStream(createHeaderInputStream(), is);
   }

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      {
         InputStream bis = new ByteArrayInputStream(byteBuffer, byteBufferOffset, byteBufferLength);
         if (tempFile == null)
            return bis;
         InputStream fis = new FileInputStream(tempFile);
         return new SequenceInputStream(bis, fis);
      }

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            //it is possible that two operators will get concatenated
            //together
            inputStreams.add( new ByteArrayInputStream( inbetweenStreamBytes ) );
        }


        return new SequenceInputStream( inputStreams.elements() );
    }

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                public InputStream nextElement() {
                    return streams[index++];
                }  
                
            };
            return new SequenceInputStream(list);
        } else {
            return is;
        }
                 
    }

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            //only copy up to the limit since that's all we need to log
            //we can stream the rest
            IOUtils.copyAtLeast(bis, bos, limit);
            bos.flush();
            bis = new SequenceInputStream(bos.getInputStream(), bis);
            
            // restore the delegating input stream or the input stream
            if (is instanceof DelegatingInputStream) {
                ((DelegatingInputStream)is).setInputStream(bis);
            } else {

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        v.add(new ByteArrayInputStream("<a>".getBytes("ascii")));
        v.add(ds.getInputStream());
        v.add(new ByteArrayInputStream("</a>".getBytes("ascii")));
        OMElement element = OMXMLBuilderFactory.createOMBuilder(factory,
                StAXParserConfiguration.NON_COALESCING,
                new SequenceInputStream(v.elements()), "ascii").getDocumentElement();
        Reader in = element.getTextAsStream(false);
        IOTestUtils.compareStreams(new InputStreamReader(ds.getInputStream(), "ascii"), in);
    }

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          in.reset();
          parseWritable(in);
        } else {
          // We cannot use BufferedInputStream, it consumes more than we read from the underlying IS
          ByteArrayInputStream bais = new ByteArrayInputStream(pbuf);
          SequenceInputStream sis = new SequenceInputStream(bais, in); // Concatenate input streams
          // TODO: Am I leaking anything here wrapping the passed in stream?  We are not calling close on the wrapped
          // streams but they should be let go after we leave this context?  I see that we keep a reference to the
          // passed in inputstream but since we no longer have a reference to this after we leave, we should be ok.
          parseWritable(new DataInputStream(sis));
        }

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     */
    private File mergeChunks(final Node parentNode,
            final InputStream lastChunkStream) throws PersistenceException,
            RepositoryException {
        OutputStream out = null;
        SequenceInputStream  mergeStrm = null;
        File file = null;
        try {
            file = File.createTempFile("tmp-", "-mergechunk");
            out = new FileOutputStream(file);
            String startPattern = SlingPostConstants.CHUNK_NODE_NAME + "_"
                + "0_*";
            NodeIterator nodeItr = parentNode.getNodes(startPattern);
            InputStream ins = null;
            int i = 0;
            Set<InputStream> inpStrmSet = new LinkedHashSet<InputStream>();
            while (nodeItr.hasNext()) {
                if (nodeItr.getSize() > 1) {
                    throw new RepositoryException(
                        "more than one node found for pattern: " + startPattern);
                }
                Node rangeNode = nodeItr.nextNode();


                inpStrmSet.add(rangeNode.getProperty(
                    javax.jcr.Property.JCR_DATA).getBinary().getStream());
                log.debug("added chunk {} to merge stream", rangeNode.getName());
                String[] indexBounds = rangeNode.getName().substring(
                    (SlingPostConstants.CHUNK_NODE_NAME + "_").length()).split(
                    "_");
                startPattern = SlingPostConstants.CHUNK_NODE_NAME + "_"
                    + String.valueOf(Long.valueOf(indexBounds[1]) + 1) + "_*";
                nodeItr = parentNode.getNodes(startPattern);
            }


            inpStrmSet.add(lastChunkStream);
            mergeStrm = new SequenceInputStream(
                Collections.enumeration(inpStrmSet));
            IOUtils.copyLarge(mergeStrm, out);
        } catch (IOException e) {
            throw new PersistenceException("excepiton occured", e);
        } finally {

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