Examples of java.io.InputStream.mark()

java.io.InputStream.mark()
Set a Mark position in this InputStream. The parameter readLimit indicates how many bytes can be read before a mark is invalidated. Sending reset() will reposition the Stream back to the marked position provided readLimit has not been surpassed.
This default implementation does nothing and concrete subclasses must provide their own implementations. @param readlimit the number of bytes to be able to read before invalidating the mark.

        } catch (RuntimeException e) {
            LOGGER.error(e.getMessage());
            throw e;
        }
        try {
            is.mark(256 * 1024);
            JarInputStream jar = new JarInputStream(is);
            Manifest m = jar.getManifest();
            if (m == null) {
                ZipEntry entry;
                while ((entry = jar.getNextEntry()) != null) {

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        } catch (RuntimeException e) {
            LOGGER.error(e.getMessage());
            throw e;
        }
        try {
            is.mark(256 * 1024);
            JarInputStream jar = new JarInputStream(is);
            Manifest m = jar.getManifest();
            if(m == null) {
                throw new BundleException("Manifest not present in the first entry of the zip " + bundleLocation);
            }

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        }
        try {
            InputStream is = super.getInputStream(manifestEntry);
            if (verifier != null) {
                byte[] buf = new byte[is.available()];
                is.mark(buf.length);
                is.read(buf, 0, buf.length);
                is.reset();
                verifier.addMetaEntry(manifestEntry.getName(), buf);
            }
            try {

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    protected Bundle installBundleIfNeeded(String bundleLocation) throws IOException, BundleException {
        LOGGER.debug("Checking " + bundleLocation);
        InputStream is = new BufferedInputStream(new URL(bundleLocation).openStream());
        try {
            is.mark(256 * 1024);
            JarInputStream jar = new JarInputStream(is);
            Manifest m = jar.getManifest();
            String sn = m.getMainAttributes().getValue(Constants.BUNDLE_SYMBOLICNAME);
            String vStr = m.getMainAttributes().getValue(Constants.BUNDLE_VERSION);
            Version v = vStr == null ? Version.emptyVersion : Version.parseVersion(vStr);

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                    // to decode part of the stream.
                    is.mark(100);
                    InputStream ret = new InflaterInputStream(is);
                    if (!ret.markSupported())
                        ret = new BufferedInputStream(ret);
                    ret.mark(2);
                    ret.read(data);
                    is.reset();
                    ret = new InflaterInputStream(is);
                    return ret;
                } catch (ZipException ze) {

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                DigestOutputStream digestOutputStream = createMessageDigestOutputStream(signaturePartDef.getDigestAlgo());
                InputStream inputStream = attachment.getSourceStream();
                if (!inputStream.markSupported()) {
                    inputStream = new BufferedInputStream(inputStream);
                }
                inputStream.mark(Integer.MAX_VALUE); //we can process at maximum 2G with the standard jdk streams


                try {
                    Transformer transformer = buildTransformerChain(digestOutputStream, signaturePartDef, null);


                    Map<String, Object> transformerProperties = new HashMap<String, Object>(2);

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        } catch (RuntimeException e) {
            LOGGER.error(e.getMessage());
            throw e;
        }
        try {
            is.mark(256 * 1024);
            JarInputStream jar = new JarInputStream(is);
            Manifest m = jar.getManifest();
            if(m == null) {
                throw new BundleException("Manifest not present in the first entry of the zip " + bundleLocation);
            }

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        //attachment size is greater than the optimized size.        
        int totalRead = 0;
        try{
            in = getInputStream(dh);
            if(in.markSupported()){
                in.mark((int)limit);
            }
            if(in == null){
                if(log.isDebugEnabled()){
                    log.debug("Input Stream is null");
                }

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      InputStream inputStream = inputMessage.getBody();
      if (inputStream == null) {
        return null;
      }
      else if (inputStream.markSupported()) {
        inputStream.mark(1);
        if (inputStream.read() == -1) {
          return null;
        }
        inputStream.reset();
      }

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            this.maxLengthExceeded = true;
        } else {
            InputStream requestInputStream = this.request.getInputStream();
            // mark the input stream to allow multiple reads
            if (requestInputStream.markSupported()) {
                requestInputStream.mark(contentLength + 1);
            }
            this.inputStream.setBoundary(this.boundary);
            this.inputStream.setInputStream(requestInputStream);
        }
    }

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