framework/source/inc/pattern/storages.hxx

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  30
  31 #ifndef __FRAMEWORK_PATTERN_STORAGES_HXX_
  32 #define __FRAMEWORK_PATTERN_STORAGES_HXX_
  33
  34 //_______________________________________________
  35 // own includes
  36
  37 #include <services.h>
  38 #include <general.h>
  39
  40 //_______________________________________________
  41 // interface includes
  42 #include <com/sun/star/io/XOutputStream.hpp>
  43 #include <com/sun/star/io/XSeekable.hpp>
  44 #include <com/sun/star/embed/ElementModes.hpp>
  45 #include <com/sun/star/embed/XStorage.hpp>
  46 #include <com/sun/star/embed/XPackageStructureCreator.hpp>
  47 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  48 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  49
  50 //_______________________________________________
  51 // other includes
  52
  53 //_______________________________________________
  54 // namespaces
  55
  56 #ifndef css
  57 namespace css = ::com::sun::star;
  58 #endif
  59
  60 namespace framework{
  61     namespace pattern{
  62         namespace storages{
  63
  64 //_______________________________________________
  65 // definitions
  66
  67 //-----------------------------------------------
  68 css::uno::Reference< css::embed::XStorage > createTempStorageBasedOnFolder(const ::rtl::OUString&                                        sFolder  ,
  69                                                                            const css::uno::Reference< css::lang::XMultiServiceFactory >& xSMGR    ,
  70                                                                                  sal_Bool                                                bReadOnly)
  71 {
  72     // error during opening the temp file isnt realy a runtime error -> handle it gracefully
  73     css::uno::Reference< css::io::XOutputStream > xTempFile(xSMGR->createInstance(SERVICENAME_TEMPFILE), css::uno::UNO_QUERY);
  74     if (!xTempFile.is())
  75         return css::uno::Reference< css::embed::XStorage >();
  76
  77     // creation of needed resources is mandatory -> error = runtime error
  78     css::uno::Reference< css::embed::XPackageStructureCreator > xPackageCreator(xSMGR->createInstance(SERVICENAME_PACKAGESTRUCTURECREATOR), css::uno::UNO_QUERY_THROW);
  79     css::uno::Reference< css::lang::XSingleServiceFactory >     xStorageFactory(xSMGR->createInstance(SERVICENAME_STORAGEFACTORY)         , css::uno::UNO_QUERY_THROW);
  80
  81     // create zip package
  82     xPackageCreator->convertToPackage(sFolder, xTempFile);
  83
  84     // seek it back - so it can be used in a defined way.
  85     css::uno::Reference< css::io::XSeekable > xSeekable(xTempFile, css::uno::UNO_QUERY_THROW);
  86     xSeekable->seek(0);
  87
  88     // open the temp. zip package - using the right open mode
  89     sal_Int32 nOpenMode = css::embed::ElementModes::ELEMENT_READWRITE;
  90     if (bReadOnly)
  91         nOpenMode = css::embed::ElementModes::ELEMENT_READ;
  92
  93     css::uno::Sequence< css::uno::Any > lArgs(2);
  94     lArgs[0] <<= xTempFile;
  95     lArgs[1] <<= nOpenMode;
  96
  97     css::uno::Reference< css::embed::XStorage > xStorage(xStorageFactory->createInstanceWithArguments(lArgs), css::uno::UNO_QUERY_THROW);
  98     return xStorage;
  99 }
 100
 101         } // namespace storages
 102     } // namespace pattern
 103 } // namespace framework
 104
 105 #endif // __FRAMEWORK_PATTERN_STORAGES_HXX_