I hate to be pedantic, but I want to clarify this. Misdemeanors are similar to summary offences. Felonies to indictable offences. For most indictable offences, the accused may choose to be tried by judge and jury as opposed to judge alone for summary offences.
In Yaniv's case, I would guess that because the weapon is not a firearm and because he did not use said weapon to commit a crime he would only be charged with a summary offence. He would probably be banned from possessing weapons and maybe another condition or two but expecting any jail time is unrealistic.
Here is a screenshot of the applicable code:
View attachment 904313
Federal laws of canada
laws-lois.justice.gc.ca