public Attachment execute(CommandContext commandContext) {
AttachmentEntity attachment = new AttachmentEntity();
attachment.setName(attachmentName);
attachment.setDescription(attachmentDescription);
attachment.setType(attachmentType);
attachment.setTaskId(taskId);
attachment.setProcessInstanceId(processInstanceId);
attachment.setUrl(url);
DbSqlSession dbSqlSession = commandContext.getDbSqlSession();
dbSqlSession.insert(attachment);
if (content != null) {
byte[] bytes = IoUtil.readInputStream(content, attachmentName);
ByteArrayEntity byteArray = new ByteArrayEntity(bytes);
dbSqlSession.insert(byteArray);
attachment.setContentId(byteArray.getId());
}
CommentManager commentManager = commandContext.getCommentManager();
if (commentManager.isHistoryEnabled()) {
String userId = Authentication.getAuthenticatedUserId();
CommentEntity comment = new CommentEntity();
comment.setUserId(userId);
comment.setType(CommentEntity.TYPE_EVENT);
comment.setTime(ClockUtil.getCurrentTime());
comment.setTaskId(taskId);
comment.setProcessInstanceId(processInstanceId);
comment.setAction(Event.ACTION_ADD_ATTACHMENT);
comment.setMessage(attachmentName);
commentManager.insert(comment);
}
return attachment;
}
/** customized insert behavior for HistoricVariableUpdateEventEntity */
protected void insertHistoricVariableUpdateEntity(
HistoricVariableUpdateEventEntity historyEvent) {
DbSqlSession dbSqlSession = getDbSqlSession();
// insert update only if history level = FULL
int historyLevel = Context.getProcessEngineConfiguration().getHistoryLevel();
if (historyLevel == ProcessEngineConfigurationImpl.HISTORYLEVEL_FULL) {
// insert byte array entity (if applicable)
byte[] byteValue = historyEvent.getByteValue();
if (byteValue != null) {
ByteArrayEntity byteArrayEntity =
new ByteArrayEntity(historyEvent.getVariableName(), byteValue);
Context.getCommandContext().getDbSqlSession().insert(byteArrayEntity);
historyEvent.setByteArrayId(byteArrayEntity.getId());
}
dbSqlSession.insert(historyEvent);
}
// always insert/update HistoricProcessVariableInstance
if (HistoryEvent.VARIABLE_EVENT_TYPE_CREATE.equals(historyEvent.getEventType())) {
HistoricVariableInstanceEntity persistentObject =
new HistoricVariableInstanceEntity(historyEvent);
dbSqlSession.insert(persistentObject);
} else if (HistoryEvent.VARIABLE_EVENT_TYPE_UPDATE.equals(historyEvent.getEventType())) {
HistoricVariableInstanceEntity historicVariableInstanceEntity =
dbSqlSession.selectById(
HistoricVariableInstanceEntity.class, historyEvent.getVariableInstanceId());
historicVariableInstanceEntity.updateFromEvent(historyEvent);
} else if (HistoryEvent.VARIABLE_EVENT_TYPE_DELETE.equals(historyEvent.getEventType())) {
HistoricVariableInstanceEntity historicVariableInstanceEntity =
dbSqlSession.selectById(
HistoricVariableInstanceEntity.class, historyEvent.getVariableInstanceId());
if (historicVariableInstanceEntity != null) {
historicVariableInstanceEntity.delete();
}
}
}
/** general history event insert behavior */
protected void insertOrUpdate(HistoryEvent historyEvent) {
final DbSqlSession dbSqlSession = getDbSqlSession();
String eventType = historyEvent.getEventType();
if (isInitialEvent(eventType)) {
dbSqlSession.insert(historyEvent);
} else {
if (dbSqlSession.findInCache(historyEvent.getClass(), historyEvent.getId()) == null) {
dbSqlSession.update(historyEvent);
}
}
}