From rgolan at redhat.com Sun Apr 15 02:01:34 2012 Content-Type: multipart/mixed; boundary="===============8013663018314101544==" MIME-Version: 1.0 From: Roy Golan To: devel at ovirt.org Subject: Re: [Engine-devel] Query regarding ValidationUtils#validateInputs Date: Sun, 15 Apr 2012 09:01:32 +0300 Message-ID: <4F8A643C.8060605@redhat.com> In-Reply-To: 15a5329c-4579-4ef6-b1c8-be0b260e859b@zmail07.collab.prod.int.phx2.redhat.com --===============8013663018314101544== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------080707050808080009010909 Content-Type: text/plain; charset=3DUTF-8; format=3Dflowed Content-Transfer-Encoding: 7bit On 04/12/2012 10:50 AM, Omer Frenkel wrote: > > > ------------------------------------------------------------------------ > > *From: *"Shireesh Anjal" > *To: *engine-devel(a)ovirt.org > *Sent: *Thursday, April 12, 2012 9:35:25 AM > *Subject: *[Engine-devel] Query regarding > ValidationUtils#validateInputs > > Hi, > > This is regarding the following validation method we have in > ValidationUtils: > > /public static > ArrayList validateInputs(List> > validationGroupList, T parameters);/ > > I there any particular reason for supporting the validations only > on objects of classes derived from VdcActionParametersBase? I > guess this was done because this method is primarily intended to > validate the action parameters passed to a BLL action, using the > validation annotations on the parameter class. However I think > this method can be useful for general use as well. e.g. I cannot > add a "@Valid" annotation on a "list" or a "map" in a parameter > class. So I need to iterate over the list/map, and validate each > element inside the loop. The validation inside the loop can also > utilize the above method if the restriction "extends > VdcActionParametersBase" is removed. This will allow me to do the > following in the canDoAction method: > > protected boolean canDoAction() { > ... > for(GlusterBrickEntity brick : > getParameters().getGlusterVolume().getBricks()) { > List errors =3D > ValidationUtils.validateInputs(getValidationGroups(), brick); > if(errors !=3D null) { > for(String error : errors) { > addCanDoActionMessage(error); > } > } > } > ... > } > > Regards, > Shireesh > > _______________________________________________ > Engine-devel mailing list > Engine-devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/engine-devel > > i don't think there is a reason to restrict only for = > VdcActionParametersBase, roy what do you think? > > also you can use here > getReturnValue().getCanDoActionMessages().addAll(errors); > instead of going over on all errors. pls see SetupNetworksParameters.java for validating a list of network = interfaces. hibernate validator supports trivial object graphs and members that are = arrays, list and java.util.map implementations. If your code looks like that it should work. If you are using special = validation groups please add them to your command with addValidationGroups. this should work: GlusterCommandParameters.java @Valid List bricks Bricks.java @NotNull Guid id --------------080707050808080009010909 Content-Type: text/html; charset=3DUTF-8 Content-Transfer-Encoding: 8bit On 04/12/2012 10:50 AM, Omer Frenkel wrote:

From: "Shireesh Anjal" <sanjal(a)redhat.com>
To: engine-devel(a)ovirt.org
Sent: Thursday, April 12, 2012 9:35:25 AM
Subject: [Engine-devel] Query regarding ValidationUtils#validateInputs

Hi,

This is regarding the following validation method we have in ValidationUtils:

public static <T extends VdcActionParametersBase> ArrayList<String> validateInputs(List<Class<?>> validationGroupList, T parameters);

I there any particular reason for supporting the validations only on objects of classes derived from VdcActionParametersBase? I guess this was done because this method is primarily intended to validate the action parameters passed to a BLL action, using the validation annotations on the parameter class. However I think this method can be useful for general use as well. e.g. I cannot add a "@Valid" annotation on a "list" or a "map" in a parameter class. So I need to iterate over the list/map, and validate each element inside the loop. The validation inside the loop can also utilize the above method if the restriction "extends VdcActionParametersBase" is removed. This will allow me to do the following in the canDoAction method:

protected boolean canDoAction() {
...
=C2=A0=C2=A0=C2=A0 for(GlusterBrickEntity brick : getParameters().getGlusterVolume().getBricks()) {
=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 List<String> errors = =3D ValidationUtils.validateInputs(getValidationGroups(), brick);
=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 if(errors !=3D null) {
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 for(String error : errors) {
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 addCanDoActionMessage(error);
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 }
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 }
=C2=A0=C2=A0=C2=A0 }
...
}

Regards,
Shireesh

_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/eng= ine-devel

i don't think there is a reason to restrict only for VdcActionParametersBase, roy what do you think?

also you can use here
getReturnValue().getCanDoActionMessages().addAll(errors);
instead of going over on all errors.

pls see SetupNetworksParameters.java for validating a list of network interfaces.

hibernate validator supports trivial object graphs and members that are arrays, list and java.util.map implementations.
If your code looks like that it should work. If you are using special validation groups please add them to your command with addValidationGroups.

this should work:

GlusterCommandParameters.java
=C2=A0@Valid
=C2=A0List<Bricks> bricks

=C2=A0Bricks.java
=C2=A0@NotNull
=C2=A0Guid id
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