org.springframework.ldap.query.DefaultConditionCriteria Maven / Gradle / Ivy

/*
 * Copyright 2005-2013 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.ldap.query;

import org.springframework.ldap.filter.EqualsFilter;
import org.springframework.ldap.filter.Filter;
import org.springframework.ldap.filter.GreaterThanOrEqualsFilter;
import org.springframework.ldap.filter.LessThanOrEqualsFilter;
import org.springframework.ldap.filter.LikeFilter;
import org.springframework.ldap.filter.NotFilter;
import org.springframework.ldap.filter.PresentFilter;
import org.springframework.ldap.filter.WhitespaceWildcardsFilter;

/**
 * @author Mattias Hellborg Arthursson
 * @since 2.0
 */
class DefaultConditionCriteria implements ConditionCriteria {
	private final AppendableContainerCriteria parent;
	private final String attribute;
	private boolean negated = false;

	DefaultConditionCriteria(AppendableContainerCriteria parent, String attribute) {
		this.parent = parent;
		this.attribute = attribute;
	}

	@Override
	public ContainerCriteria is(String value) {
		return appendToParent(new EqualsFilter(attribute, value));
	}

	@Override
	public ContainerCriteria gte(String value) {
		return appendToParent(new GreaterThanOrEqualsFilter(attribute, value));
	}

	@Override
	public ContainerCriteria lte(String value) {
		return appendToParent(new LessThanOrEqualsFilter(attribute, value));
	}

	@Override
	public ContainerCriteria like(String value) {
		return appendToParent(new LikeFilter(attribute, value));
	}

	@Override
	public ContainerCriteria whitespaceWildcardsLike(String value) {
		return appendToParent(new WhitespaceWildcardsFilter(attribute, value));
	}

	@Override
	public ContainerCriteria isPresent() {
		return appendToParent(new PresentFilter(attribute));
	}

	private ContainerCriteria appendToParent(Filter filter) {
		return parent.append(negateIfApplicable(filter));
	}

	private Filter negateIfApplicable(Filter myFilter) {
		if (negated) {
			return new NotFilter(myFilter);
		}

		return myFilter;
	}

	@Override
	public DefaultConditionCriteria not() {
		negated = !negated;
		return this;
	}
}