SSDM-8778 Added metadata import support.

openbis_standard_technologies/dist/core-plugins/eln-lims/1/dss/drop-boxes/eln-lims-dropbox/eln-lims-dropbox.py

 from ch.systemsx.cisd.openbis.generic.client.web.client.exception import UserFailureException
 from ch.systemsx.cisd.openbis.dss.generic.shared import ServiceProvider
+from org.json import JSONObject
+from org.apache.commons.io import FileUtils
 
 INVALID_FORMAT_ERROR_MESSAGE = "Invalid format for the folder name, should follow the pattern <ENTITY_KIND>+<SPACE_CODE>+<PROJECT_CODE>+[<EXPERIMENT_CODE|<SAMPLE_CODE>]+<OPTIONAL_DATASET_TYPE>+<OPTIONAL_NAME>";
 FAILED_TO_PARSE_SAMPLE_ERROR_MESSAGE = "Failed to parse sample";
@@ -7,11 +9,12 @@ FAILED_TO_PARSE_EXPERIMENT_ERROR_MESSAGE = "Failed to parse experiment";
 SAMPLE_MISSING_ERROR_MESSAGE = "Sample not found";
 EXPERIMENT_MISSING_ERROR_MESSAGE = "Experiment not found";
 MORE_THAN_ONE_FOLDER_ERROR_MESSAGE = "More than one folder found";
+NAME_PROPERTY_IN_METADATA_ERROR_MESSAGE = "$NAME property should not be specified in metadata file"
 
 def process(transaction):
 	incoming = transaction.getIncoming();
 	folderName = incoming.getName();
-	
+
 	if not folderName.startswith('.'):
 		datasetInfo = folderName.split("+");
 		entityKind = None;
@@ -19,7 +22,7 @@ def process(transaction):
 		experiment = None;
 		datasetType = None;
 		name = None;
-		
+
 		# Parse entity Kind
 		if len(datasetInfo) >= 1:
 			entityKind = datasetInfo[0];
@@ -76,34 +79,45 @@ def process(transaction):
 					raise UserFailureException(INVALID_FORMAT_ERROR_MESSAGE + ":" + FAILED_TO_PARSE_EXPERIMENT_ERROR_MESSAGE);
 			else:
 				raise UserFailureException(INVALID_FORMAT_ERROR_MESSAGE + ":" + FAILED_TO_PARSE_EXPERIMENT_ERROR_MESSAGE);
-		
+
 		# Create dataset
 		dataSet = None;
 		if datasetType is not None: #Set type if found
 			dataSet = transaction.createNewDataSet(datasetType);
 		else:
 			dataSet = transaction.createNewDataSet();
-		
+
 		if name is not None:
 			dataSet.setPropertyValue("$NAME", name); #Set name if found
-		
+
 		# Set sample or experiment
 		if sample is not None:
 			dataSet.setSample(sample);
 		else:
 			dataSet.setExperiment(experiment);
-		
+
 		# Move folder to dataset
 		filesInFolder = incoming.listFiles();
-		
+
 		# Discard folders started with a . (hidden files)
 		itemsInFolder = 0;
 		datasetItem = None;
 		for item in filesInFolder:
-			# Exclude files starting with .
-			# Exclude Mac .DS_Store
-			# Exclude Windows Thumbs.db
-			if (not item.getName().startswith('.')) and (not item.getName() == ".DS_Store") and (not item.getName() == "Thumbs.db"):
+			fileName = item.getName()
+			if fileName == "metadata.json":
+				root = JSONObject(FileUtils.readFileToString(item, "UTF-8"))
+				properties = root.get("properties")
+				for propertyKey in properties.keys():
+					if propertyKey == "$NAME":
+						raise UserFailureException(NAME_PROPERTY_IN_METADATA_ERROR_MESSAGE)
+					propertyValue = properties.get(propertyKey)
+					if propertyValue is not None:
+						propertyValueString = str(propertyValue)
+						dataSet.setPropertyValue(propertyKey, propertyValueString)
+			elif (not fileName.startswith('.')) and (not fileName == ".DS_Store") and (not fileName == "Thumbs.db"):
+				# Exclude files starting with .
+				# Exclude Mac .DS_Store
+				# Exclude Windows Thumbs.db
 				itemsInFolder = itemsInFolder + 1;
 				datasetItem = item;