/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.eurekastreams.server.action.validation.profile;
import org.eurekastreams.commons.actions.ValidationStrategy;
import org.eurekastreams.commons.actions.context.PrincipalActionContext;
import org.eurekastreams.commons.exceptions.ValidationException;
import org.eurekastreams.server.action.request.profile.SetFollowingStatusRequest;
import org.eurekastreams.server.domain.EntityType;
import org.eurekastreams.server.persistence.mappers.DomainMapper;
/**
* This class handles validation for request to follow a person through the Follow action.
*/
public class SetFollowingPersonStatusValidation implements ValidationStrategy<PrincipalActionContext>
{
/**
* Mapper to get a person's id from account id.
*/
private final DomainMapper<String, Long> getPersonIdByAccountIdMapper;
/**
* Constructor for the FollowingPersonValidator that sets up the mapper instances.
*
* @param inGetPersonIdByAccountIdMapper
* - Mapper to get a person's id from account id
*/
public SetFollowingPersonStatusValidation(final DomainMapper<String, Long> inGetPersonIdByAccountIdMapper)
{
getPersonIdByAccountIdMapper = inGetPersonIdByAccountIdMapper;
}
/**
* Enforces validation for the SetFollowingStatusAction when following a user. - Action will only allow following of
* a person. - Target must be valid unique id.
*
* {@inheritDoc}
*/
@Override
public void validate(final PrincipalActionContext inActionContext) throws ValidationException
{
SetFollowingStatusRequest inRequest = (SetFollowingStatusRequest) inActionContext.getParams();
ValidationException vex = new ValidationException();
if (!inRequest.getTargetEntityType().equals(EntityType.PERSON))
{
vex.addError("EntityType", "This action only supports following a person.");
}
Long followingId = getPersonIdByAccountIdMapper.execute(inRequest.getTargetUniqueId());
if (followingId == null)
{
vex.addError("FollowerAndTarget", "Target unique id for valid users must be supplied.");
}
if (vex.getErrors().size() > 0)
{
throw vex;
}
}
}