I'm having trouble getting correct published dates when downloading metadata. The published date I end up with doesn't seem to match the date that is contained in much of the resulting information that the process provides.
I'm using calibre 0.8.15. I've restricted the configured download sources to use only data from amazon.com for simplicity. For this example, I'm trying to get metadata for "Core Java(TM) 2, Volume II--Advanced Features (
7th Edition)", ISBN:0-13-111826-9, which was published in
2005 (as best as I can tell). I've also cleared the book title and author fields so that the search query is based on the ISBN only.
After clicking "download metada" on the "Edit Metadata" screen, I get the following dialog:
The first thing to notice is the published data on the first and only entry in the table which shows
2001. This is the date that is ultimately chosen for the published date after clicking through and accepting the results.
Next, if I investigate the links provided to the right after "See at:", I find that the first link is for
http://amzn.com/0132354799. When following that link, I end up at
http://www.amazon.com/dp/0132354799/ref=cm_sw_su_dp which is the page for "Core Java, Vol. 2: Advanced Features,
8th Edition". If you check on that page, you will see the listed published date is "Publisher: Prentice Hall; 8 edition (
April 18, 2008)" This is not the book I'm looking for but it also does not contain the published date that is displayed in the table.
The second link is for
http://www.worldcat.org/title/core-j.../oclc/57378709 which contains the correct information for the book and a published date of
2005.
To conclude the mystery here is the log data from the search query:
Code:
Starting download
Query: title:Unknown; authors:Unknown; isbn:0131118269
Running identify query with parameters:
{u'authors': None, u'identifiers': {u'isbn': u'0131118269'}, u'timeout': 30, u'title': None}
Using plugins: Amazon.com
The log from individual plugins is below
****************************** Amazon.com ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 5.2; rv:2.0.1) Gecko/20100101 Firefox/4.0.1')]
Found 1 results
Downloading from Amazon.com took 3.71499991417
---
Title : Core Java
Author(s) : Cay S. Horstmann & Gary Cornell
Publisher : Prentice Hall
Languages : eng
Rating : 4.4
Published : 2004-12-02T00:00:00+00:00
Identifiers : amazon:0132354799, isbn:9780131118263
Comments : <h3>Amazon.com Review</h3><p>The fifth edition of <em>Core Java 2: Volume II--Advanced Features</em> brings a classic Java text up to date for developers tackling JDK 1.3 and 1.4, with a fast-moving and example-based tutorial. Perfect for those who want to learn programming through small, complete demos, this new version is still an excellent choice for mastering the more advanced topics in Java.</p><p>The salient feature of this tutorial is that authors provide small, complete programs that demonstrate each area of functionality in "core" Java along with reference material on essential APIs. Beginning with using multiple threading (and synchronization, which allow threads to communicate), the authors provide an engaging tour of advanced Java. The focus here is on client-side Java based on the Java 2 Standard Edition (J2SE), both versions 1.3 and 1.4, including APIs for building applets and applications with Swing and JavaBeans. As in the previous edition, sections on the Java collections do little to simplify the complexity here. Coverage of JDBC is very good, though, with a fine mix of examples showing off basic SQL and queries, plus transactions and newer JDBC features. Later on, this text turns to Swing, including how to extend three powerful Swing controls (lists, trees, and tables), plus improved J2SE 1.4 support for progress controls, plus drag-and-drop and clipboard support.</p><p>Besides providing source code and APIs, this book is filled with tips and gotchas to avoid. A robust section on security covers the entire spectrum of security issues in Java, including signing JAR files (along with good practical details). Though it's probably rare enough today, the authors go into good detail about creating custom JavaBean components. Examples make use of Sun Forte Community Edition, a capable Java tool (bundled on the accompanying CD-ROM).</p><p>Standout later chapters include an excellent tour of Java's strong support for internationalization (illustrated with a "retirement saving calculator" in English, German, and Chinese). A final section on XML introduces this powerful new standard, plus some essential Java APIs for getting starting with parsing and transforming XML. Chock-full of examples and useful advice, the latest edition of <em>Core Java 2--Volume II</em> is a worthy update to an already successful Java tutorial. <em>--Richard Dragan</em></p><p><strong>Topics covered:</strong> Programming with multiple threads (states and priorities, daemon threads); thread synchronization; avoiding deadlocks; using threads with Swing (dos and don'ts); introduction to collections (including lists, sets, trees, and maps); the collections framework; algorithms (sorting and searching); legacy collections; Java network programming (sending e-mail, using sockets and URLs, basic Web programming); JDBC and databases (quick SQL tutorial, connecting and querying data, metadata, and transactions); new JDBC 3.0 features; remote method invocation (RMI); Java and CORBA; advanced Swing tutorial (JList, JTree, and JTable, including custom rendering options); advanced AWT and Java 2-D graphics (including image manipulation and graphics filters); clipboard and drag-and-drop support; JavaBeans (properties and events, property editors and customizers); Java security (class loaders and bytecode verification, digital signatures, signing JAR files, encryption); internationalization (including date and time and multiple character sets); the Java Native Interface (JNI); Java and C interoperability; and a quick tutorial to XML (SAX and XSL in Java). </p><h3>From the Publisher</h3><p>The #1 advanced guide for serious programmers is fully updated for JDK 1.3 release and JDK 1.4 release. An indispensable companion to the best-selling <em>Core Java 2, Vol. I--Fundamentals</em>, <em>Core Java 2, Volume II: Advanced Features</em> is now available in a revised and expanded fifth edition. It delivers the same real-world guidance you need to solve even the most challenging programming problems and offers an all-new chapter on XML and Java, plus thoroughly revamped coverage of many advanced features--from collections to native methods, security to Swing. </p><p>Cay Horstmann identifies the problems experienced Java platform developers encounter most often, and delivers insightful, expert-level guidance for addressing them--together with even more of the robust, sample code that have made <em>Core Java</em> an international bestseller for five straight years. You'll gain new insights into networking, remote objects, JDBC API, internationalization, and a whole lot more. </p><p>For experienced programmers, this book provides the answers that they need to take full advantage of the power of Java technology and to get the job done as efficiently as possible. </p>
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The identify phase took 3.84 seconds
The longest time (3.715000) was taken by: Amazon.com
Merging results from different sources and finding earliest publication dates
We have 1 merged results, merging took: 0.00 seconds
Where is the date of
2001 coming from and why isn't it finding the correct date of
2005?
Thanks.