com.holonplatform.vaadin7.internal.components.builders.DefaultValidatableInputBuilder Maven / Gradle / Ivy

/*
 * Copyright 2000-2017 Holon TDCN.
 * 
 * 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 com.holonplatform.vaadin7.internal.components.builders;

import java.util.Optional;

import com.holonplatform.core.Validator;
import com.holonplatform.core.i18n.Localizable;
import com.holonplatform.core.internal.utils.ObjectUtils;
import com.holonplatform.vaadin7.components.Input;
import com.holonplatform.vaadin7.components.ValidatableInput;
import com.holonplatform.vaadin7.components.ValidationStatusHandler;
import com.holonplatform.vaadin7.components.builders.ValidatableInputBuilder;
import com.holonplatform.vaadin7.internal.components.RequiredIndicatorSupport;
import com.holonplatform.vaadin7.internal.components.RequiredInputValidator;
import com.vaadin.ui.Field;

/**
 * Default {@link ValidatableInputBuilder}.
 * 
 * @param  Value type
 *
 * @since 5.0.0
 */
public class DefaultValidatableInputBuilder implements ValidatableInputBuilder> {

	private final Input input;

	private final ValidatableInput instance;

	private boolean required = false;

	private Validator requiredValidator;

	private Localizable requiredMessage;

	public DefaultValidatableInputBuilder(Input input) {
		super();
		this.input = input;
		this.instance = ValidatableInput.from(input);
	}

	protected Optional> getRequiredValidator() {
		return Optional.ofNullable(requiredValidator);
	}

	protected Optional getRequiredMessage() {
		return Optional.ofNullable(requiredMessage);
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#withValidator(com.holonplatform.core.Validator)
	 */
	@Override
	public ValidatableInputBuilder> withValidator(Validator validator) {
		ObjectUtils.argumentNotNull(validator, "Validator must be not null");
		instance.addValidator(validator);
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see
	 * com.holonplatform.vaadin.components.ValidatableInput.Builder#validationStatusHandler(com.holonplatform.vaadin
	 * .components.ValidationStatusHandler)
	 */
	@Override
	public ValidatableInputBuilder> validationStatusHandler(
			ValidationStatusHandler validationStatusHandler) {
		ObjectUtils.argumentNotNull(validationStatusHandler, "ValidationStatusHandler must be not null");
		instance.setValidationStatusHandler(validationStatusHandler);
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#validateOnValueChange(boolean)
	 */
	@Override
	public ValidatableInputBuilder> validateOnValueChange(boolean validateOnValueChange) {
		instance.setValidateOnValueChange(validateOnValueChange);
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#required()
	 */
	@Override
	public ValidatableInputBuilder> required() {
		this.required = true;
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#required(com.holonplatform.core.Validator)
	 */
	@Override
	public ValidatableInputBuilder> required(Validator validator) {
		this.required = true;
		this.requiredValidator = validator;
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#required(com.holonplatform.core.i18n.
	 * Localizable)
	 */
	@Override
	public ValidatableInputBuilder> required(Localizable message) {
		this.required = true;
		this.requiredMessage = message;
		return this;
	}

	/*
	 * (non-Javadoc)
	 * @see com.holonplatform.vaadin.components.ValidatableInput.Builder#build()
	 */
	@Override
	public ValidatableInput build() {
		// check required
		if (required) {
			if (input instanceof RequiredIndicatorSupport) {
				((RequiredIndicatorSupport) input).setRequiredIndicatorVisible(true);
			} else {
				// fallback to default required setup
				if (input instanceof Field) {
					((Field) input).setRequired(true);
				} else if (input.getComponent() != null && input.getComponent() instanceof Field) {
					((Field) input.getComponent()).setRequired(true);
				}
			}
			// add required validator
			instance.addValidator(getRequiredValidator().orElse(new RequiredInputValidator<>(input,
					getRequiredMessage().orElse(RequiredInputValidator.DEFAULT_REQUIRED_ERROR))));
		}
		return instance;
	}

}