org.gbif.ipt.validation.BaseValidator.java Source code

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Here is the source code for org.gbif.ipt.validation.BaseValidator.java

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/***************************************************************************
 * Copyright 2010 Global Biodiversity Information Facility Secretariat
 *
 * 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.gbif.ipt.validation;

import java.util.Date;
import javax.mail.internet.InternetAddress;

import com.google.common.base.Strings;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

public abstract class BaseValidator {

    private static final Logger LOG = Logger.getLogger(BaseValidator.class);

    protected boolean exists(String x) {
        return exists(x, 2);
    }

    protected boolean exists(Integer i) {
        return i != null;
    }

    protected boolean exists(Date d) {
        return d != null;
    }

    protected boolean exists(String x, int minLength) {
        return x != null && x.trim().length() >= minLength;
    }

    /**
     * Checks if string has a length in a certain range.
     *
     * @param x         incoming string
     * @param minLength min length inclusive
     * @param maxLength max length inclusive
     *
     * @return true if string
     */
    protected boolean existsInRange(String x, int minLength, int maxLength) {
        x = StringUtils.trimToNull(x);
        return x != null && x.length() >= minLength && x.length() <= maxLength;
    }

    protected boolean isValidEmail(String email) {
        if (email != null) {
            try {
                InternetAddress internetAddress = new InternetAddress(email);
                internetAddress.validate();
                return true;
            } catch (javax.mail.internet.AddressException e) {
                LOG.debug("Email address was invalid: " + Strings.nullToEmpty(email));
            }
        }
        return false;
    }
}