Simplify a bit the boilerplate code

The XInputStream is guaranteed to be there always
and if it is not there, do not try to create it.

Change-Id: Ie133489dfcb3d9cec0c4efe78740348a1efa2423

5 files changed, 15 insertions, 24 deletions

diff --git a/writerperfect/source/draw/CDRImportFilter.cxx b/writerperfect/source/draw/CDRImportFilter.cxx
index 026c7b146a97..216e1fde77cb 100644
--- a/writerperfect/source/draw/CDRImportFilter.cxx
+++ b/writerperfect/source/draw/CDRImportFilter.cxx
@@ -74,16 +74,12 @@ throw (RuntimeException)
     {
         if ( pValue[i].Name == "InputStream" )
             pValue[i].Value >>= xInputStream;
-        else if ( pValue[i].Name == "URL" )
-            pValue[i].Value >>= sURL;
     }
     if ( !xInputStream.is() )
     {
         OSL_ASSERT( 0 );
         return sal_False;
     }
-    OString sFileName;
-    sFileName = OUStringToOString(sURL, RTL_TEXTENCODING_INFO_ASCII);
 
     // An XML import service: what we push sax messages to..
     OUString sXMLImportService ( "com.sun.star.comp.Draw.XMLOasisImporter" );
@@ -142,6 +138,9 @@ throw( com::sun::star::uno::RuntimeException )
             pValue[i].Value >>= xInputStream;
     }
 
+    if (!xInputStream.is())
+        return ::rtl::OUString();
+
     WPXSvInputStream input( xInputStream );
 
     if (libcdr::CDRDocument::isSupported(&input))
diff --git a/writerperfect/source/draw/CMXImportFilter.cxx b/writerperfect/source/draw/CMXImportFilter.cxx
index 9d53df394f5e..885449001b60 100644
--- a/writerperfect/source/draw/CMXImportFilter.cxx
+++ b/writerperfect/source/draw/CMXImportFilter.cxx
@@ -39,7 +39,6 @@ using com::sun::star::io::XInputStream;
 using com::sun::star::io::XSeekable;
 using com::sun::star::uno::Sequence;
 using namespace ::rtl;
-using rtl::OString;
 using rtl::OUString;
 using com::sun::star::uno::Sequence;
 using com::sun::star::uno::Reference;
@@ -74,16 +73,12 @@ throw (RuntimeException)
     {
         if ( pValue[i].Name == "InputStream" )
             pValue[i].Value >>= xInputStream;
-        else if ( pValue[i].Name == "URL" )
-            pValue[i].Value >>= sURL;
     }
     if ( !xInputStream.is() )
     {
         OSL_ASSERT( 0 );
         return sal_False;
     }
-    OString sFileName;
-    sFileName = OUStringToOString(sURL, RTL_TEXTENCODING_INFO_ASCII);
 
     // An XML import service: what we push sax messages to..
     OUString sXMLImportService ( "com.sun.star.comp.Draw.XMLOasisImporter" );
@@ -142,6 +137,9 @@ throw( com::sun::star::uno::RuntimeException )
             pValue[i].Value >>= xInputStream;
     }
 
+    if (!xInputStream.is())
+        return ::rtl::OUString();
+
     WPXSvInputStream input( xInputStream );
 
     if (libcdr::CMXDocument::isSupported(&input))
diff --git a/writerperfect/source/draw/MSPUBImportFilter.cxx b/writerperfect/source/draw/MSPUBImportFilter.cxx
index 5f886ab7cc92..b80b6d62e3ff 100644
--- a/writerperfect/source/draw/MSPUBImportFilter.cxx
+++ b/writerperfect/source/draw/MSPUBImportFilter.cxx
@@ -35,7 +35,6 @@ using com::sun::star::io::XInputStream;
 using com::sun::star::io::XSeekable;
 using com::sun::star::uno::Sequence;
 using namespace ::rtl;
-using rtl::OString;
 using rtl::OUString;
 using com::sun::star::uno::Sequence;
 using com::sun::star::uno::Reference;
@@ -70,16 +69,12 @@ throw (RuntimeException)
     {
         if ( pValue[i].Name == "InputStream" )
             pValue[i].Value >>= xInputStream;
-        else if ( pValue[i].Name == "URL" )
-            pValue[i].Value >>= sURL;
     }
     if ( !xInputStream.is() )
     {
         OSL_ASSERT( 0 );
         return sal_False;
     }
-    OString sFileName;
-    sFileName = OUStringToOString(sURL, RTL_TEXTENCODING_INFO_ASCII);
 
     // An XML import service: what we push sax messages to..
     OUString sXMLImportService ( "com.sun.star.comp.Draw.XMLOasisImporter" );
@@ -138,6 +133,9 @@ throw( com::sun::star::uno::RuntimeException )
             pValue[i].Value >>= xInputStream;
     }
 
+    if (!xInputStream.is())
+        return ::rtl::OUString();
+
     WPXSvInputStream input( xInputStream );
 
     if (libmspub::MSPUBDocument::isSupported(&input))
diff --git a/writerperfect/source/draw/VisioImportFilter.cxx b/writerperfect/source/draw/VisioImportFilter.cxx
index 291f35875d50..9b39b64aaaed 100644
--- a/writerperfect/source/draw/VisioImportFilter.cxx
+++ b/writerperfect/source/draw/VisioImportFilter.cxx
@@ -35,7 +35,6 @@ using com::sun::star::io::XInputStream;
 using com::sun::star::io::XSeekable;
 using com::sun::star::uno::Sequence;
 using namespace ::rtl;
-using rtl::OString;
 using rtl::OUString;
 using com::sun::star::uno::Sequence;
 using com::sun::star::uno::Reference;
@@ -70,16 +69,12 @@ throw (RuntimeException)
     {
         if ( pValue[i].Name == "InputStream" )
             pValue[i].Value >>= xInputStream;
-        else if ( pValue[i].Name == "URL" )
-            pValue[i].Value >>= sURL;
     }
     if ( !xInputStream.is() )
     {
         OSL_ASSERT( 0 );
         return sal_False;
     }
-    OString sFileName;
-    sFileName = OUStringToOString(sURL, RTL_TEXTENCODING_INFO_ASCII);
 
     // An XML import service: what we push sax messages to..
     OUString sXMLImportService ( "com.sun.star.comp.Draw.XMLOasisImporter" );
@@ -138,6 +133,9 @@ throw( com::sun::star::uno::RuntimeException )
             pValue[i].Value >>= xInputStream;
     }
 
+    if (!xInputStream.is())
+        return ::rtl::OUString();
+
     WPXSvInputStream input( xInputStream );
 
     if (libvisio::VisioDocument::isSupported(&input))
diff --git a/writerperfect/source/draw/WPGImportFilter.cxx b/writerperfect/source/draw/WPGImportFilter.cxx
index 7538ee92cdee..b142e1a640bd 100644
--- a/writerperfect/source/draw/WPGImportFilter.cxx
+++ b/writerperfect/source/draw/WPGImportFilter.cxx
@@ -40,7 +40,6 @@ using com::sun::star::io::XInputStream;
 using com::sun::star::io::XSeekable;
 using com::sun::star::uno::Sequence;
 using namespace ::rtl;
-using rtl::OString;
 using rtl::OUString;
 using com::sun::star::uno::Sequence;
 using com::sun::star::uno::Reference;
@@ -75,16 +74,12 @@ throw (RuntimeException)
     {
         if ( pValue[i].Name == "InputStream" )
             pValue[i].Value >>= xInputStream;
-        else if ( pValue[i].Name == "URL" )
-            pValue[i].Value >>= sURL;
     }
     if ( !xInputStream.is() )
     {
         OSL_ASSERT( 0 );
         return sal_False;
     }
-    OString sFileName;
-    sFileName = OUStringToOString(sURL, RTL_TEXTENCODING_INFO_ASCII);
 
     // An XML import service: what we push sax messages to..
     OUString sXMLImportService (  "com.sun.star.comp.Draw.XMLOasisImporter"  );
@@ -143,6 +138,9 @@ throw( com::sun::star::uno::RuntimeException )
             pValue[i].Value >>= xInputStream;
     }
 
+    if (!xInputStream.is())
+        return ::rtl::OUString();
+
     WPXSvInputStream input( xInputStream );
 
     if (libwpg::WPGraphics::isSupported(&input))