protected internal virtual void AddDefinitionInfoToCache(IProcessDefinitionEntity processDefinition, ProcessEngineConfigurationImpl processEngineConfiguration, ICommandContext commandContext)
{
if (!processEngineConfiguration.EnableProcessDefinitionInfoCache)
{
return;
}
DeploymentManager deploymentManager = processEngineConfiguration.DeploymentManager;
IProcessDefinitionInfoEntityManager definitionInfoEntityManager = commandContext.ProcessDefinitionInfoEntityManager;
ObjectMapper objectMapper = commandContext.ProcessEngineConfiguration.ObjectMapper;
IProcessDefinitionInfoEntity definitionInfoEntity = definitionInfoEntityManager.FindProcessDefinitionInfoByProcessDefinitionId(processDefinition.Id);
JToken infoNode = null;
if (definitionInfoEntity is object && definitionInfoEntity.InfoJsonId is object)
{
byte[] infoBytes = definitionInfoEntityManager.FindInfoJsonById(definitionInfoEntity.InfoJsonId);
if (infoBytes != null)
{
try
{
infoNode = objectMapper.ReadTree(infoBytes);
}
catch (Exception)
{
throw new ActivitiException("Error deserializing json info for process definition " + processDefinition.Id);
}
}
}
ProcessDefinitionInfoCacheObject definitionCacheObject = new ProcessDefinitionInfoCacheObject();
if (definitionInfoEntity == null)
{
definitionCacheObject.Revision = 0;
}
else
{
definitionCacheObject.Id = definitionInfoEntity.Id;
definitionCacheObject.Revision = definitionInfoEntity.Revision;
}
if (infoNode == null)
{
infoNode = objectMapper.CreateObjectNode();
}
definitionCacheObject.InfoNode = infoNode;
deploymentManager.ProcessDefinitionInfoCache.Add(processDefinition.Id, definitionCacheObject);
}
protected internal virtual ProcessDefinitionInfoCacheObject RetrieveProcessDefinitionInfoCacheObject(string processDefinitionId, ICommandContext commandContext)
{
IProcessDefinitionInfoEntityManager infoEntityManager = commandContext.ProcessDefinitionInfoEntityManager;
ObjectMapper objectMapper = commandContext.ProcessEngineConfiguration.ObjectMapper;
ProcessDefinitionInfoCacheObject cacheObject = cache.GetOrCreate(processDefinitionId, (key) => new ProcessDefinitionInfoCacheObject()
{
Revision = 0,
InfoNode = objectMapper.CreateObjectNode()
});
IProcessDefinitionInfoEntity infoEntity = infoEntityManager.FindProcessDefinitionInfoByProcessDefinitionId(processDefinitionId);
if (infoEntity != null && infoEntity.Revision != cacheObject.Revision)
{
cacheObject.Revision = infoEntity.Revision;
if (infoEntity.InfoJsonId is object)
{
byte[] infoBytes = infoEntityManager.FindInfoJsonById(infoEntity.InfoJsonId);
try
{
JToken infoNode = objectMapper.ReadTree(infoBytes);
cacheObject.InfoNode = infoNode;
}
catch (Exception e)
{
throw new ActivitiException("Error reading json info node for process definition " + processDefinitionId, e);
}
}
}
else if (infoEntity == null)
{
cacheObject.Revision = 0;
cacheObject.InfoNode = objectMapper.CreateObjectNode();
}
return(cacheObject);
}
public virtual object Execute(ICommandContext commandContext)
{
if (string.IsNullOrWhiteSpace(processDefinitionId))
{
throw new ActivitiIllegalArgumentException("process definition id is null");
}
if (infoNode == null)
{
throw new ActivitiIllegalArgumentException("process definition info node is null");
}
IProcessDefinitionInfoEntityManager definitionInfoEntityManager = commandContext.ProcessDefinitionInfoEntityManager;
IProcessDefinitionInfoEntity definitionInfoEntity = definitionInfoEntityManager.FindProcessDefinitionInfoByProcessDefinitionId(processDefinitionId);
if (definitionInfoEntity == null)
{
definitionInfoEntity = definitionInfoEntityManager.Create();
definitionInfoEntity.ProcessDefinitionId = processDefinitionId;
commandContext.ProcessDefinitionInfoEntityManager.InsertProcessDefinitionInfo(definitionInfoEntity);
}
if (infoNode != null)
{
try
{
ObjectMapper writer = commandContext.ProcessEngineConfiguration.ObjectMapper;
commandContext.ProcessDefinitionInfoEntityManager.UpdateInfoJson(definitionInfoEntity.Id, writer.WriteValueAsBytes(infoNode));
}
catch (Exception)
{
throw new ActivitiException("Unable to serialize info node " + infoNode);
}
}
return(null);
}