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+//-----------------------------------------------------------------------------
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+// Copyright (c) 2013 GarageGames, LLC
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a copy
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+// of this software and associated documentation files (the "Software"), to
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+// deal in the Software without restriction, including without limitation the
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+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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+// sell copies of the Software, and to permit persons to whom the Software is
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+// furnished to do so, subject to the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included in
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+// all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+// IN THE SOFTWARE.
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+//-----------------------------------------------------------------------------
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+
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+#include "persistence/taml/json/TamlJSONParser.h"
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+#include "persistence/taml/tamlVisitor.h"
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+#include "console/console.h"
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+#include "io/fileStream.h"
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+#include "memory/frameAllocator.h"
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+
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+// Debug Profiling.
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+#include "debug/profiler.h"
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+
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+//-----------------------------------------------------------------------------
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+
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+bool TamlJSONParser::accept( const char* pFilename, TamlVisitor& visitor )
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+{
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+ // Debug Profiling.
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+ PROFILE_SCOPE(TamlJSONParser_Accept);
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+
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+ // Sanity!
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+ AssertFatal( pFilename != NULL, "Cannot parse a NULL filename." );
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+
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+ // Expand the file-path.
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+ char filenameBuffer[1024];
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+ Con::expandPath( filenameBuffer, sizeof(filenameBuffer), pFilename );
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+
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+ FileStream stream;
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+
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+ // File open for read?
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+ if ( !stream.open( filenameBuffer, FileStream::Read ) )
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+ {
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+ // No, so warn.
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+ Con::warnf("TamlJSONParser::parse() - Could not open filename '%s' for parse.", filenameBuffer );
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+ return false;
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+ }
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+
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+ // Read JSON file.
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+ const U32 streamSize = stream.getStreamSize();
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+ FrameTemp<char> jsonText( streamSize + 1 );
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+ if ( !stream.read( streamSize, jsonText ) )
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+ {
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+ // Warn!
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+ Con::warnf("TamlJSONParser::parse() - Could not load Taml JSON file from stream.");
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+ return false;
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+ }
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+
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+ // Create JSON document.
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+ rapidjson::Document inputDocument;
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+ inputDocument.Parse<0>( jsonText );
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+
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+ // Close the stream.
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+ stream.close();
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+
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+ // Check the document is valid.
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+ if ( inputDocument.GetType() != rapidjson::kObjectType )
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+ {
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+ // Warn!
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+ Con::warnf("TamlJSONParser::parse() - Load Taml JSON file from stream but was invalid.");
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+ return false;
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+ }
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+
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+ // Set parsing filename.
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+ setParsingFilename( filenameBuffer );
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+
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+ // Flag document as not dirty.
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+ mDocumentDirty = false;
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+
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+ // Fetch the root.
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+ rapidjson::Value::MemberIterator rootItr = inputDocument.MemberBegin();
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+
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+ // Parse root value.
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+ parseType( rootItr, visitor, true );
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+
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+ // Reset parsing filename.
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+ setParsingFilename( StringTable->EmptyString );
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+
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+ // Finish if the document is not dirty.
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+ if ( !mDocumentDirty )
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+ return true;
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+
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+ // Open for write?
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+ if ( !stream.open( filenameBuffer, FileStream::Write ) )
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+ {
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+ // No, so warn.
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+ Con::warnf("TamlJSONParser::parse() - Could not open filename '%s' for write.", filenameBuffer );
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+ return false;
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+ }
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+
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+ // Create output document.
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+ rapidjson::Document outputDocument;
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+ outputDocument.AddMember( rootItr->name, rootItr->value, outputDocument.GetAllocator() );
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+
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+ // Write document to stream.
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+ rapidjson::PrettyWriter<FileStream> jsonStreamWriter( stream );
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+ outputDocument.Accept( jsonStreamWriter );
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+
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+ // Close the stream.
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+ stream.close();
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+
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+ return true;
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+}
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+
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+//-----------------------------------------------------------------------------
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+
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+inline bool TamlJSONParser::parseType( rapidjson::Value::MemberIterator& memberItr, TamlVisitor& visitor, const bool isRoot )
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+{
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+ // Debug Profiling.
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+ PROFILE_SCOPE(TamlJSONParser_ParseType);
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+
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+ // Fetch name and value.
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+ const rapidjson::Value& typeName = memberItr->name;
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+ rapidjson::Value& typeValue = memberItr->value;
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+
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+ // Create a visitor property state.
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+ TamlVisitor::PropertyState propertyState;
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+ propertyState.setObjectName( typeName.GetString(), isRoot );
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+
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+ // Parse field members.
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+ for( rapidjson::Value::MemberIterator fieldMemberItr = typeValue.MemberBegin(); fieldMemberItr != typeValue.MemberEnd(); ++fieldMemberItr )
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+ {
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+ // Fetch value.
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+ const rapidjson::Value& fieldName = fieldMemberItr->name;
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+ rapidjson::Value& fieldValue = fieldMemberItr->value;
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+
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+ // Skip if not a field.
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+ if ( fieldValue.IsObject() )
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+ continue;
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+
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+ char valueBuffer[4096];
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+ if ( !parseStringValue( valueBuffer, sizeof(valueBuffer), fieldValue, fieldName.GetString() ) )
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+ {
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+ // Warn.
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+ Con::warnf( "TamlJSONParser::parseTyoe() - Could not interpret value for field '%s'", fieldName.GetString() );
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+ continue;
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+ }
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+
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+ // Configure property state.
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+ propertyState.setProperty( fieldName.GetString(), valueBuffer );
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+
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+ // Visit this attribute.
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+ const bool visitStatus = visitor.visit( *this, propertyState );
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+
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+ // Was the property value changed?
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+ if ( propertyState.getPropertyValueDirty() )
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+ {
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+ // Yes, so update the attribute.
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+ fieldValue.SetString( propertyState.getPropertyValue() );
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+
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+ // Flag the document as dirty.
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+ mDocumentDirty = true;
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+ }
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+
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+ // Finish if requested.
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+ if ( !visitStatus )
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+ return false;
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+ }
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+
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+ // Finish if only the root is needed.
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+ if ( visitor.wantsRootOnly() )
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+ return false;
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+
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+ // Parse children and custom node members.
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+ for( rapidjson::Value::MemberIterator objectMemberItr = typeValue.MemberBegin(); objectMemberItr != typeValue.MemberEnd(); ++objectMemberItr )
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+ {
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+ // Fetch name and value.
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+ const rapidjson::Value& objectValue = objectMemberItr->value;
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+
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+ // Skip if not an object.
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+ if ( !objectValue.IsObject() )
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+ continue;
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+
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+ // Parse the type.
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+ if ( !parseType( objectMemberItr, visitor, false ) )
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+ return false;
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+ }
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+
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+ return true;
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+}
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+
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+//-----------------------------------------------------------------------------
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+
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+inline bool TamlJSONParser::parseStringValue( char* pBuffer, const S32 bufferSize, const rapidjson::Value& value, const char* pName )
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+{
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+ // Debug Profiling.
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+ PROFILE_SCOPE(TamlJSONParser_ParseStringValue);
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+
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+ // Handle field value appropriately.
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+
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+ if ( value.IsString() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%s", value.GetString() );
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+ return true;
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+ }
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+
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+ if ( value.IsNumber() )
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+ {
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+ if ( value.IsInt() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%d", value.GetInt() );
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+ return true;
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+ }
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+
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+ if ( value.IsUint() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%d", value.GetUint() );
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+ return true;
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+ }
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+
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+ if ( value.IsInt64() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%d", value.GetInt64() );
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+ return true;
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+ }
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+
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+ if ( value.IsUint64() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%d", value.GetUint64() );
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+ return true;
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+ }
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+
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+ if ( value.IsDouble() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%f", value.GetDouble() );
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+ return true;
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+ }
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+ }
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+
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+ if ( value.IsBool() )
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+ {
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+ dSprintf( pBuffer, bufferSize, "%d", value.GetBool() );
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+ return true;
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+ }
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+
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+ // Failed to get value type.
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+ Con::warnf( "Taml: Encountered a field '%s' but its value is an unknown type.", pName );
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+ return false;
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+}
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+
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MelvMay-GG