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Rev 32647 Rev 32649
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import java.util.function.Function;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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import java.util.stream.Collectors;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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import java.util.zip.ZipOutputStream;
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import static org.springframework.util.FileCopyUtils.BUFFER_SIZE;
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@Controller
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@Controller
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@Transactional(rollbackFor = Throwable.class)
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@Transactional(rollbackFor = Throwable.class)
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public class PurchaseController {
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public class PurchaseController {
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    private static final Logger LOGGER = LogManager.getLogger(PurchaseController.class);
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    private static final Logger LOGGER = LogManager.getLogger(PurchaseController.class);
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        }
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        }
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        return null;
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        return null;
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    }
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    }
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    private void addFileToZip(ZipOutputStream outZip, InputStream inputStream, String fileName) throws Exception {
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    private void addFileToZip(ZipOutputStream outZip, InputStream inputStream, String fileName) throws Exception {
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        byte data[] = new byte[BUFFER_SIZE];
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        ZipEntry entry = new ZipEntry(fileName);
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        ZipEntry entry = new ZipEntry(fileName);
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        outZip.putNextEntry(entry);
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        outZip.putNextEntry(entry);
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        IOUtils.copy(inputStream, outZip);
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        IOUtils.copy(inputStream, outZip);
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        outZip.closeEntry();
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        outZip.closeEntry();
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    }
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    }