UserFilter.java

/*
 * Copyright 2019 Global Crop Diversity Trust
 *
 * 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.genesys.server.service.filter;

import java.io.IOException;
import java.time.Instant;
import java.util.List;
import java.util.Set;

import org.apache.commons.collections4.CollectionUtils;
import org.genesys.blocks.model.filters.AuditedVersionedModelFilter;
import org.genesys.blocks.model.filters.StringFilter;
import org.genesys.blocks.model.filters.TemporalFilter;
import org.genesys.server.model.UserRole;
import org.genesys.server.model.impl.QUser;
import org.genesys.server.model.impl.User;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.querydsl.core.types.Predicate;

import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.Setter;
import lombok.experimental.Accessors;

/**
 * Filters for {@link User}.
 *
 * @author Matija Obreza
 */
@Getter
@Setter
@EqualsAndHashCode(callSuper = true)
@Accessors(fluent = true)
public class UserFilter extends AuditedVersionedModelFilter<UserFilter, User> {

	private static final long serialVersionUID = 3568921814452373126L;

	/** The language. */
	public Set<String> uuid;

	/** The title. */
	public StringFilter email;
	
	/** The role. */
	@JsonDeserialize(contentUsing = UserRoleDeserializer.class)
	public Set<UserRole> role;

	public TemporalFilter<Instant> lastLogin;
	
	/** The locked. */
	public Boolean locked;
	
	/** The enabled. */
	public Boolean active;
	
	/** The expired. */
	public Boolean expired;

	/* (non-Javadoc)
	 * @see org.genesys.blocks.model.filters.BasicModelFilter#buildQuery()
	 */
	@Override
	public List<Predicate> collectPredicates() {
		return collectPredicates(QUser.user);
	}

	/**
	 * Builds the query.
	 *
	 * @param user the user
	 * @return the predicate
	 */
	public List<Predicate> collectPredicates(QUser user) {
		final List<Predicate> predicates = super.collectPredicates(user, user._super._super._super);

		if (CollectionUtils.isNotEmpty(uuid)) {
			predicates.add(user.uuid.in(uuid));
		}
		if (email != null) {
			predicates.add(email.buildQuery(user.email));
		}
		if (CollectionUtils.isNotEmpty(role)) {
			predicates.add(user.roles.any().in(role));
		}
		if (active != null) {
			predicates.add(user.active.eq(active));
		}
		if (locked != null) {
			if (locked) {
				predicates.add(user.lockedUntil.gt(Instant.now()));
			} else {
				predicates.add(user.lockedUntil.loe(Instant.now()).or(user.lockedUntil.isNull()));
			}
		}
		if (expired != null) {
			if (expired) {
				predicates.add(user.accountExpires.loe(Instant.now()));
			} else {
				predicates.add(user.accountExpires.gt(Instant.now()).or(user.accountExpires.isNull()));
			}
		}

		if (lastLogin != null) {
			predicates.add(lastLogin.buildQuery(user.lastLogin));
		}

		return predicates;
	}
	
	private static class UserRoleDeserializer extends JsonDeserializer<UserRole> {
		@Override
		public UserRole deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
			return UserRole.valueOf(p.getText());
		}
	}

	/**
	 * Email filter.
	 *
	 * @return the string filter
	 */
	public synchronized StringFilter email() {
		return this.email == null ? this.email = new StringFilter() : this.email;
	}
	
}