public void compress()

in ch-commons-util/src/main/java/com/cloudhopper/commons/util/CompressionUtil.java [449:490]
28 lines of code
6 McCabe index (conditional complexity)

        public void compress(File srcFile, File destFile) throws IOException {
            FileInputStream in = null;
            ZipOutputStream out = null;

            try {
                // create an input stream from the source file
                in = new FileInputStream(srcFile);
                // create an output stream that's gzipped
                out = new ZipOutputStream(new FileOutputStream(destFile));

                // add a new zip entry to the output stream
                out.putNextEntry(new ZipEntry(srcFile.getName()));

                // transfer bytes from the input file to the zip output stream
                byte[] buf = new byte[1024];
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }

                // close the input stream
                in.close();
                in = null;

                // finish and close the gzip file
                out.closeEntry();
                out.finish();
                out.close();
                out = null;
            } finally {
                // always make sure the input stream is closed!
                if (in != null) {
                    try { in.close(); } catch (Exception e) { }
                }
                // if the out var is not null, then something went wrong above
                // and we did not compress the destination file correctly
                if (out != null) {
                    logger.warn("Output stream for ZIP compressed file was not null -- indicates error with compression occurred");
                    try { out.close(); } catch (Exception e) { }
                }
            }
        }