/
ComponentValidator.java
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/
ComponentValidator.java
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/**
* Copyright (c) 2012, Ben Fortuna
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* o Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* o Neither the name of Ben Fortuna nor the names of any other contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package net.fortuna.ical4j.validate;
import net.fortuna.ical4j.model.Component;
import net.fortuna.ical4j.model.ComponentList;
import net.fortuna.ical4j.util.CompatibilityHints;
import java.util.Arrays;
import java.util.List;
import static net.fortuna.ical4j.validate.Validator.assertFalse;
/**
* @author Ben
*
*/
public class ComponentValidator<T extends Component> implements Validator<T> {
private static final String ASSERT_NONE_MESSAGE = "Component [{0}] is not applicable";
private static final String ASSERT_ONE_OR_LESS_MESSAGE = "Component [{0}] must only be specified once";
private final List<ValidationRule> rules;
public ComponentValidator(ValidationRule... rules) {
this.rules = Arrays.asList(rules);
}
@Override
public void validate(T target) throws ValidationException {
for (ValidationRule rule : rules) {
boolean warnOnly = CompatibilityHints.isHintEnabled(CompatibilityHints.KEY_RELAXED_VALIDATION)
&& rule.isRelaxedModeSupported();
switch (rule.getType()) {
case None:
rule.getInstances().forEach(s -> assertFalse(input -> input.getProperty(s) != null,
PropertyValidator.ASSERT_NONE_MESSAGE, warnOnly, target.getProperties(), s));
break;
case One:
rule.getInstances().forEach(s -> assertFalse(input -> input.getProperties(s).size() != 1,
PropertyValidator.ASSERT_ONE_MESSAGE, warnOnly, target.getProperties(), s));
break;
case OneOrLess:
rule.getInstances().forEach(s -> assertFalse(input -> input.getProperties(s).size() > 1,
PropertyValidator.ASSERT_ONE_OR_LESS_MESSAGE, warnOnly, target.getProperties(), s));
break;
case OneOrMore:
rule.getInstances().forEach(s -> assertFalse(input -> input.getProperties(s).size() < 1,
PropertyValidator.ASSERT_ONE_OR_MORE_MESSAGE, warnOnly, target.getProperties(), s));
break;
}
}
}
/**
* @param componentName a component name used in the assertion
* @param components a list of components
* @throws ValidationException where the assertion fails
*/
public static void assertNone(String componentName, ComponentList<?> components) throws ValidationException {
assertFalse(input -> input.getComponent(componentName) != null, ASSERT_NONE_MESSAGE, false,
components, componentName);
}
/**
* @param componentName a component name used in the assertion
* @param components a list of components
* @throws ValidationException where the assertion fails
*/
public static void assertOneOrLess(String componentName, ComponentList<?> components) throws ValidationException {
assertFalse(input -> input.getComponents(componentName).size() > 1, ASSERT_ONE_OR_LESS_MESSAGE, false,
components, componentName);
}
}