diff options
Diffstat (limited to 'src/com/joshwalters/bookcatalog/isbnlookup/ISBNLookup.java')
| -rw-r--r-- | src/com/joshwalters/bookcatalog/isbnlookup/ISBNLookup.java | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/src/com/joshwalters/bookcatalog/isbnlookup/ISBNLookup.java b/src/com/joshwalters/bookcatalog/isbnlookup/ISBNLookup.java new file mode 100644 index 0000000..92d31ff --- /dev/null +++ b/src/com/joshwalters/bookcatalog/isbnlookup/ISBNLookup.java @@ -0,0 +1,286 @@ +/*
+ * Book Catalog - Catalog your book collection.
+ *
+ * Copyright (C) 2009 Joshua Walters
+ * URL: http://joshwalters.com
+ *
+ * This file is part of Book Catalog.
+ *
+ * Book Catalog is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Book Catalog is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Book Catalog. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.joshwalters.bookcatalog.isbnlookup;
+
+import java.util.regex.Pattern;
+
+/**
+ * Abstract class for performing an ISBN lookup for a book.
+ *
+ * @author Josh Walters
+ */
+public abstract class ISBNLookup {
+
+ /**
+ * The title of the book.
+ */
+ protected String title;
+ /**
+ * The author of the book.
+ */
+ protected String author;
+ /**
+ * The publisher of the book.
+ */
+ protected String publisher;
+ /**
+ * The date the book was published.
+ */
+ protected String date;
+ /**
+ * The description of the book.
+ */
+ protected String description;
+ /**
+ * The subject of the book.
+ */
+ protected String subject;
+ /**
+ * The books ISBN number.
+ */
+ protected String ISBN;
+ /**
+ * The price of the book.
+ */
+ protected String price;
+
+ /**
+ * Purifies the input barcode to make it suitable for use in lookup. Also
+ * grabs the price from the barcode if it is present.
+ *
+ * @param barcode
+ * @return A purified barcode.
+ * @throws InvalidSearchTerms
+ */
+ protected String purifyBarcode(String barcode) throws InvalidSearchTerms {
+ // Remove the extra characters that some scanners include
+ barcode = removeCharInString(barcode, ' ');
+ barcode = removeCharInString(barcode, '-');
+ // Check to see if the barcode is made up of numbers.
+ if (!Pattern.matches("^\\d*$", barcode)) {
+ throw new InvalidSearchTerms();
+ }
+ // Check to see that the barcode is at least 4 digits long.
+ if (barcode.length() < 4) {
+ throw new InvalidSearchTerms();
+ }
+ // ISBN-13
+ if (barcode.substring(0, 3).compareTo("978") == 0
+ || barcode.substring(0, 3).compareTo("979") == 0) {
+ if (barcode.length() == 15) {
+ barcode = barcode.substring(0, 13);
+ }
+ if (barcode.length() == 18) {
+ price = barcode.substring(13);
+ barcode = barcode.substring(0, 13);
+ }
+ }
+ // ISBN-10
+ else {
+ if (barcode.length() == 12) {
+ barcode = barcode.substring(0, 10);
+ }
+ if (barcode.length() == 15) {
+ price = barcode.substring(10);
+ barcode = barcode.substring(0, 10);
+ }
+ }
+ if (price != null) {
+ // Format price information
+ if (price.charAt(1) == '0') {
+ price = price.substring(2);
+ price = "$" + price.substring(0, 1) + "." + price.substring(1);
+ } else {
+ price = price.substring(1);
+ price = "$" + price.substring(0, 2) + "." + price.substring(2);
+ }
+ }
+ // Check to make sure that this is the proper length for an ISBN number.
+ if (barcode.length() != 10 & barcode.length() != 13) {
+ throw new InvalidSearchTerms();
+ }
+ return barcode;
+ }
+
+ /**
+ * Clear out all the data fields.
+ */
+ protected void emptyDataFields() {
+ title = null;
+ author = null;
+ publisher = null;
+ date = null;
+ description = null;
+ subject = null;
+ ISBN = null;
+ price = null;
+ return;
+ }
+
+ /**
+ * Removes character from string.
+ *
+ * @param s
+ * @param c
+ * @return The new string.
+ */
+ private String removeCharInString(String s, char c) {
+ String result = "";
+ for (int i = 0; i < s.length(); i++) {
+ if (s.charAt(i) != c) {
+ result += s.charAt(i);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Searches for a book.
+ *
+ * @param barcode
+ * @throws NoBookFound
+ * @throws InvalidSearchTerms
+ */
+ public abstract void searchBooks(String barcode) throws NoBookFound,
+ InvalidSearchTerms;
+
+ /**
+ * @return the title
+ */
+ public String getTitle() {
+ return title;
+ }
+
+ /**
+ * @param title
+ * the title to set
+ */
+ public void setTitle(String title) {
+ this.title = title;
+ }
+
+ /**
+ * @return the author
+ */
+ public String getAuthor() {
+ return author;
+ }
+
+ /**
+ * @param author
+ * the author to set
+ */
+ public void setAuthor(String author) {
+ this.author = author;
+ }
+
+ /**
+ * @return the publisher
+ */
+ public String getPublisher() {
+ return publisher;
+ }
+
+ /**
+ * @param publisher
+ * the publisher to set
+ */
+ public void setPublisher(String publisher) {
+ this.publisher = publisher;
+ }
+
+ /**
+ * @return the date
+ */
+ public String getDate() {
+ return date;
+ }
+
+ /**
+ * @param date
+ * the date to set
+ */
+ public void setDate(String date) {
+ this.date = date;
+ }
+
+ /**
+ * @return the description
+ */
+ public String getDescription() {
+ return description;
+ }
+
+ /**
+ * @param description
+ * the description to set
+ */
+ public void setDescription(String description) {
+ this.description = description;
+ }
+
+ /**
+ * @return the subject
+ */
+ public String getSubject() {
+ return subject;
+ }
+
+ /**
+ * @param subject
+ * the subject to set
+ */
+ public void setSubject(String subject) {
+ this.subject = subject;
+ }
+
+ /**
+ * @return the ISBN
+ */
+ public String getISBN() {
+ return ISBN;
+ }
+
+ /**
+ * @param ISBN
+ * the ISBN to set
+ */
+ public void setISBN(String ISBN) {
+ this.ISBN = ISBN;
+ }
+
+ /**
+ * @return the price
+ */
+ public String getPrice() {
+ return price;
+ }
+
+ /**
+ * @param price
+ * the price to set
+ */
+ public void setPrice(String price) {
+ this.price = price;
+ }
+}
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