com.github.bfour.fpliteraturecollector.domain.ISBN.java Source code

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Here is the source code for com.github.bfour.fpliteraturecollector.domain.ISBN.java

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/*
 * Copyright 2016 Florian Pollak
 *
 *  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.github.bfour.fpliteraturecollector.domain;

import java.security.InvalidParameterException;

import org.apache.commons.validator.routines.ISBNValidator;

public class ISBN {

    String v13String;

    public ISBN(String v10OrV13String) {

        ISBNValidator validator = ISBNValidator.getInstance();
        String normalizedString = getNormalizedString(v10OrV13String);

        if (validator.isValidISBN13(normalizedString))
            this.v13String = normalizedString;
        else if (validator.isValidISBN10(normalizedString))
            this.v13String = validator.convertToISBN13(normalizedString);
        else
            throw new InvalidParameterException("String passed as ISBN is not a valid v10 or v13 ISBN");

    }

    private String getNormalizedString(String v10OrV13String) {
        v10OrV13String = v10OrV13String.trim();
        v10OrV13String = v10OrV13String.replace(" ", "");
        v10OrV13String = v10OrV13String.replace("-", "");
        v10OrV13String = v10OrV13String.replace(".", "");
        v10OrV13String = v10OrV13String.replace("/", "");
        return v10OrV13String;
    }

    public String getV13String() {
        return v13String;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((v13String == null) ? 0 : v13String.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        ISBN other = (ISBN) obj;
        if (v13String == null) {
            if (other.v13String != null)
                return false;
        } else if (!v13String.equals(other.v13String))
            return false;
        return true;
    }

}