extensions/source/oooimprovement/logpacker.cxx

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  26
  27 // MARKER(update_precomp.py): autogen include statement, do not remove
  28 #include "precompiled_extensions.hxx"
  29
  30 #include "logpacker.hxx"
  31 #include <com/sun/star/ucb/XSimpleFileAccess.hpp>
  32 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  33 #include <com/sun/star/embed/XStorage.hpp>
  34 #include <com/sun/star/embed/XTransactedObject.hpp>
  35 #include <com/sun/star/embed/ElementModes.hpp>
  36 #include <rtl/ustrbuf.hxx>
  37
  38
  39 using namespace com::sun::star::embed;
  40 using namespace com::sun::star::io;
  41 using namespace com::sun::star::lang;
  42 using namespace com::sun::star::uno;
  43 using ::com::sun::star::ucb::XSimpleFileAccess;
  44 using ::rtl::OUString;
  45 using ::rtl::OUStringBuffer;
  46
  47
  48 namespace
  49 {
  50     static const OUString getZipfileurl(const OUString& csvfileurl)
  51     {
  52         OUStringBuffer buf(csvfileurl);
  53         buf.setLength(csvfileurl.getLength()-3);
  54         buf.appendAscii("zip");
  55         return buf.makeStringAndClear();
  56     };
  57
  58     static sal_Int32 countLines(const Sequence<sal_Int8>& data)
  59     {
  60         sal_Int32 result = 0;
  61         for(sal_Int32 idx = data.getLength()-1; idx>=0; --idx)
  62             if(data[idx]==0x0a) result++;
  63         return result;
  64     };
  65 }
  66
  67 namespace oooimprovement
  68 {
  69     LogPacker::LogPacker(const Reference<XMultiServiceFactory>& sf)
  70         : m_ServiceFactory(sf)
  71     {}
  72
  73     sal_Int32 LogPacker::pack(const OUString& fileurl)
  74     {
  75         Reference<XSimpleFileAccess> file_access(
  76             m_ServiceFactory->createInstance(OUString::createFromAscii("com.sun.star.ucb.SimpleFileAccess")),
  77             UNO_QUERY_THROW);
  78
  79         Reference<XStorage> storage;
  80         {
  81             Reference<XSingleServiceFactory> storage_factory(
  82                 m_ServiceFactory->createInstance(OUString::createFromAscii("com.sun.star.embed.StorageFactory")),
  83                 UNO_QUERY_THROW);
  84             Sequence<Any> storage_init_args(2);
  85             storage_init_args[0] = Any(getZipfileurl(fileurl));
  86             storage_init_args[1] = Any(ElementModes::WRITE);
  87             storage = Reference<XStorage>(
  88                 storage_factory->createInstanceWithArguments(storage_init_args),
  89                 UNO_QUERY_THROW);
  90         }
  91
  92         Reference<XOutputStream> zipped_stream = storage->openStreamElement(
  93             OUString::createFromAscii("logdata.csv"),
  94             ElementModes::WRITE)->getOutputStream();
  95         Reference<XInputStream> unzipped_stream = file_access->openFileRead(fileurl);
  96         const sal_Int32 bufsize = 1024;
  97         sal_Int32 read_bytes;
  98         sal_Int32 logged_events = -1; // ignore header row
  99         Sequence<sal_Int8> buf(bufsize);
 100         do
 101         {
 102             read_bytes = unzipped_stream->readBytes(buf, bufsize);
 103             buf.realloc(read_bytes);
 104             logged_events += countLines(buf);
 105             zipped_stream->writeBytes(buf);
 106         } while(read_bytes == bufsize);
 107         unzipped_stream->closeInput();
 108         zipped_stream->flush();
 109         zipped_stream->closeOutput();
 110         Reference<XTransactedObject>(storage, UNO_QUERY_THROW)->commit();
 111         file_access->kill(fileurl);
 112         return logged_events;
 113     }
 114 }