comphelper: move JsonToPropertyValues() from desktop/

Because filter/ code will need this in a bit, and that can't depend on
desktop/.

Change-Id: I07f0f8ef30942a2d11388c6721c7f277e117bfba
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128709
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

1 files changed, 137 insertions, 0 deletions

diff --git a/comphelper/source/misc/sequenceashashmap.cxx b/comphelper/source/misc/sequenceashashmap.cxx
index eb78e60c55d2..c6ac57326935 100644
--- a/comphelper/source/misc/sequenceashashmap.cxx
+++ b/comphelper/source/misc/sequenceashashmap.cxx
@@ -19,11 +19,82 @@
 
 #include <sal/config.h>
 
+#include <boost/property_tree/json_parser.hpp>
+
 #include <com/sun/star/beans/NamedValue.hpp>
 #include <com/sun/star/beans/PropertyValue.hpp>
 #include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/reflection/XIdlField.hpp>
+#include <com/sun/star/reflection/theCoreReflection.hpp>
 #include <comphelper/sequenceashashmap.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/propertysequence.hxx>
+#include <sal/log.hxx>
+
+using namespace com::sun::star;
 
+namespace
+{
+uno::Any jsonToUnoAny(const boost::property_tree::ptree& aTree)
+{
+    uno::Any aAny;
+    uno::Any aValue;
+    sal_Int32 nFields;
+    uno::Reference<reflection::XIdlField> aField;
+    boost::property_tree::ptree aNodeNull, aNodeValue, aNodeField;
+    const std::string& rType = aTree.get<std::string>("type", "");
+    const std::string& rValue = aTree.get<std::string>("value", "");
+    uno::Sequence<uno::Reference<reflection::XIdlField>> aFields;
+    uno::Reference<reflection::XIdlClass> xIdlClass
+        = css::reflection::theCoreReflection::get(comphelper::getProcessComponentContext())
+              ->forName(OUString::fromUtf8(rType.c_str()));
+    if (xIdlClass.is())
+    {
+        uno::TypeClass aTypeClass = xIdlClass->getTypeClass();
+        xIdlClass->createObject(aAny);
+        aFields = xIdlClass->getFields();
+        nFields = aFields.getLength();
+        aNodeValue = aTree.get_child("value", aNodeNull);
+        if (nFields > 0 && aNodeValue != aNodeNull)
+        {
+            for (sal_Int32 itField = 0; itField < nFields; ++itField)
+            {
+                aField = aFields[itField];
+                aNodeField = aNodeValue.get_child(aField->getName().toUtf8().getStr(), aNodeNull);
+                if (aNodeField != aNodeNull)
+                {
+                    aValue = jsonToUnoAny(aNodeField);
+                    aField->set(aAny, aValue);
+                }
+            }
+        }
+        else if (!rValue.empty())
+        {
+            if (aTypeClass == uno::TypeClass_VOID)
+                aAny.clear();
+            else if (aTypeClass == uno::TypeClass_BYTE)
+                aAny <<= static_cast<sal_Int8>(OString(rValue.c_str()).toInt32());
+            else if (aTypeClass == uno::TypeClass_BOOLEAN)
+                aAny <<= OString(rValue.c_str()).toBoolean();
+            else if (aTypeClass == uno::TypeClass_SHORT)
+                aAny <<= static_cast<sal_Int16>(OString(rValue.c_str()).toInt32());
+            else if (aTypeClass == uno::TypeClass_UNSIGNED_SHORT)
+                aAny <<= static_cast<sal_uInt16>(OString(rValue.c_str()).toUInt32());
+            else if (aTypeClass == uno::TypeClass_LONG)
+                aAny <<= OString(rValue.c_str()).toInt32();
+            else if (aTypeClass == uno::TypeClass_UNSIGNED_LONG)
+                aAny <<= static_cast<sal_uInt32>(OString(rValue.c_str()).toInt32());
+            else if (aTypeClass == uno::TypeClass_FLOAT)
+                aAny <<= OString(rValue.c_str()).toFloat();
+            else if (aTypeClass == uno::TypeClass_DOUBLE)
+                aAny <<= OString(rValue.c_str()).toDouble();
+            else if (aTypeClass == uno::TypeClass_STRING)
+                aAny <<= OUString::fromUtf8(rValue.c_str());
+        }
+    }
+    return aAny;
+}
+}
 
 namespace comphelper{
 
@@ -234,6 +305,72 @@ void SequenceAsHashMap::update(const SequenceAsHashMap& rUpdate)
     }
 }
 
+std::vector<css::beans::PropertyValue> JsonToPropertyValues(const OString& rJson)
+{
+    std::vector<beans::PropertyValue> aArguments;
+    boost::property_tree::ptree aTree, aNodeNull, aNodeValue;
+    std::stringstream aStream(rJson.getStr());
+    boost::property_tree::read_json(aStream, aTree);
+
+    for (const auto& rPair : aTree)
+    {
+        const std::string& rType = rPair.second.get<std::string>("type", "");
+        const std::string& rValue = rPair.second.get<std::string>("value", "");
+
+        beans::PropertyValue aValue;
+        aValue.Name = OUString::fromUtf8(rPair.first.c_str());
+        if (rType == "string")
+            aValue.Value <<= OUString::fromUtf8(rValue.c_str());
+        else if (rType == "boolean")
+            aValue.Value <<= OString(rValue.c_str()).toBoolean();
+        else if (rType == "float")
+            aValue.Value <<= OString(rValue.c_str()).toFloat();
+        else if (rType == "long")
+            aValue.Value <<= OString(rValue.c_str()).toInt32();
+        else if (rType == "short")
+            aValue.Value <<= sal_Int16(OString(rValue.c_str()).toInt32());
+        else if (rType == "unsigned short")
+            aValue.Value <<= sal_uInt16(OString(rValue.c_str()).toUInt32());
+        else if (rType == "int64")
+            aValue.Value <<= OString(rValue.c_str()).toInt64();
+        else if (rType == "int32")
+            aValue.Value <<= OString(rValue.c_str()).toInt32();
+        else if (rType == "int16")
+            aValue.Value <<= sal_Int16(OString(rValue.c_str()).toInt32());
+        else if (rType == "uint64")
+            aValue.Value <<= OString(rValue.c_str()).toUInt64();
+        else if (rType == "uint32")
+            aValue.Value <<= OString(rValue.c_str()).toUInt32();
+        else if (rType == "uint16")
+            aValue.Value <<= sal_uInt16(OString(rValue.c_str()).toUInt32());
+        else if (rType == "[]byte")
+        {
+            aNodeValue = rPair.second.get_child("value", aNodeNull);
+            if (aNodeValue != aNodeNull && aNodeValue.size() == 0)
+            {
+                uno::Sequence<sal_Int8> aSeqByte(reinterpret_cast<const sal_Int8*>(rValue.c_str()),
+                                                 rValue.size());
+                aValue.Value <<= aSeqByte;
+            }
+        }
+        else if (rType == "[]any")
+        {
+            aNodeValue = rPair.second.get_child("value", aNodeNull);
+            if (aNodeValue != aNodeNull && !aNodeValue.empty())
+            {
+                uno::Sequence<uno::Any> aSeq(aNodeValue.size());
+                std::transform(aNodeValue.begin(), aNodeValue.end(), aSeq.getArray(),
+                               [](const auto& rSeqPair) { return jsonToUnoAny(rSeqPair.second); });
+                aValue.Value <<= aSeq;
+            }
+        }
+        else
+            SAL_WARN("comphelper", "JsonToPropertyValues: unhandled type '" << rType << "'");
+        aArguments.push_back(aValue);
+    }
+    return aArguments;
+}
+
 } // namespace comphelper
 
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