Related tdf#54443 List only matching JREs

I.e. show only 64bit JRE for 64bit LO and 32bit JRE for 32bit LO

Change-Id: Id5e890637c7e1014bcb4e6fdd9ed9a33765112d5
Reviewed-on: https://gerrit.libreoffice.org/35026Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

jvmfwk/inc/vendorbase.hxx

@@ -133,6 +133,7 @@ public:
     const OUString & getRuntimeLibrary() const;
     const OUString & getLibraryPath() const;
     bool supportsAccessibility() const;
+    bool isValidArch() const;
      /* determines if prior to running java something has to be done,
         like setting the LD_LIBRARY_PATH. This implementation checks
         if an LD_LIBRARY_PATH (getLD_LIBRARY_PATH) needs to be set and
@@ -178,6 +179,7 @@ protected:
     OUString m_sHome;
     OUString m_sRuntimeLibrary;
     OUString m_sLD_LIBRARY_PATH;
+    OUString m_sArch;
     bool m_bAccessibility;
 
 

jvmfwk/inc/vendorplugin.hxx

@@ -55,6 +55,7 @@ enum class javaPluginError
     FailedVersion,
     NoJre,
     WrongVendor,
+    WrongArch,
     VmCreationFailed
 };
 

jvmfwk/plugins/sunmajor/pluginlib/sunjavaplugin.cxx

@@ -227,6 +227,10 @@ javaPluginError checkJavaVersionRequirements(
     rtl_uString * * arExcludeList,
     sal_Int32  nLenList)
 {
+    if (!aVendorInfo->isValidArch())
+    {
+        return javaPluginError::WrongArch;
+    }
     if (!sMinVersion.isEmpty())
     {
         try
@@ -334,7 +338,7 @@ javaPluginError jfw_plugin_getAllJavaInfos(
         javaPluginError err = checkJavaVersionRequirements(
             cur, sMinVersion, sMaxVersion, arExcludeList, nLenList);
 
-        if (err == javaPluginError::FailedVersion)
+        if (err == javaPluginError::FailedVersion || err == javaPluginError::WrongArch)
             continue;
         else if (err == javaPluginError::WrongVersionFormat)
             return err;

jvmfwk/plugins/sunmajor/pluginlib/vendorbase.cxx

@@ -62,12 +62,14 @@ bool VendorBase::initialize(vector<pair<OUString, OUString> > props)
     OUString sVendorProperty("java.vendor");
     OUString sVersionProperty("java.version");
     OUString sHomeProperty("java.home");
+    OUString sArchProperty("os.arch");
     OUString sAccessProperty("javax.accessibility.assistive_technologies");
 
     bool bVersion = false;
     bool bVendor = false;
     bool bHome = false;
     bool bAccess = false;
+    bool bArch = false;
 
     typedef vector<pair<OUString, OUString> >::const_iterator it_prop;
     for (it_prop i = props.begin(); i != props.end(); ++i)
@@ -103,6 +105,11 @@ bool VendorBase::initialize(vector<pair<OUString, OUString> > props)
            bHome = true;
 #endif
         }
+        else if (!bArch && sArchProperty.equals(i->first))
+        {
+            m_sArch = i->second;
+            bArch = true;
+        }
         else if (!bAccess && sAccessProperty.equals(i->first))
         {
             if (!i->second.isEmpty())
@@ -115,7 +122,7 @@ bool VendorBase::initialize(vector<pair<OUString, OUString> > props)
         //must search through all properties.
 
     }
-    if (!bVersion || !bVendor || !bHome)
+    if (!bVersion || !bVendor || !bHome || !bArch)
         return false;
 
     // init m_sRuntimeLibrary
@@ -201,6 +208,23 @@ const OUString & VendorBase::getRuntimeLibrary() const
 {
     return m_sRuntimeLibrary;
 }
+
+bool VendorBase::isValidArch() const
+{
+    // Warning: These values come from the "os.arch" property.
+    // It is not defined what the exact values are.
+    // Oracle JRE 8 has "x86" and "amd64", the others were found at http://lopica.sourceforge.net/os.html .
+    // There might still be missing some options; we need to extend the check once we find out.
+#if defined _WIN32
+    return m_sArch == "x86" || m_sArch == "i386" || m_sArch == "i686";
+#elif defined _WIN64
+    return m_sArch == "amd64" || m_sArch == "x86_64";
+#else
+    (void)this;
+    return true;
+#endif
+}
+
 bool VendorBase::supportsAccessibility() const
 {
     return m_bAccessibility;