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Java wrappers are available: URL_http://ubaa.net/shared/processing/opencv/ [OpenCV-Java-and-Processing-library] URL_http://code.google.com/p/javacv/ [JavaCV] I believe you will want to look into Hough transforms for circles.
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URL_http://www.seas.upenn.edu/~bensapp/opencvdocs/ref/opencvref_cv.htm [This- page] mentions them .
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IEEE material available , but it needs subscriptions.
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URL_http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4579428 [ URL_http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4579428 ] .
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I tried the project iris tool.
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It has the foundation blocks for IRIS Matching SYstem.It has the following features:* Basic QT UI - Needs qt-make and qt-sdk on top of gc++ and make to build* Iris Detection from Image file.
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- The Image should be 320x280 windows bmp greyscale 8 bit indexed image.
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- You can take an iris snap from you camera phone.
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It took a 12M regular jpeg image and converted it to required format using gimp.
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Iris Image database: Text file db to store Iris Images.
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- Means you could extend the tool to create a Iris Search database - I could take another iris image and try to match with existing image Image acquisition is not available.
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Web Application - Authentication / Login Framework.
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This is a very simple, probably a most asked question and frequently developed as part of any web application.
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Say I'm planning to build a web application and some of the functional requirements include (apart from the usual hard hitting security reqs),- Need to have users sign up for a new account profile- Authenticate user using the native app authentication / Facebook or Google or Yahoo or OpenId login- Allow lost password r...
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) that I can use to wrap my application which can be a bunch of JSP's or HTML's with JS?
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I know I'm asking a very simple and maybe a naive question.
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But this is a topic every web developer guru will go thru.
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Any help, advise and pointers much appreciated.
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I'd recommend taking a look at Apache Shiro: URL_http://shiro.apache.org/ [ URL_http://shiro.apache.org/ ] It handles the security portion of your application and gives you a great deal of flexibility in how to secure things.
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For example, you can add an annotation to secure individual methods (for example: you can't run this method unless you are an admin), individual pages (for example: you can't load this page unless you are an admin), and URL patterns (you must be admin to access anything containing /admin/* in the url).
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Give how complex it can be do to security right, Shiro is very simple to use.
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It may take just a bit to get your head around some of the concepts initially, but Shiro does a very good job of hiding as much of the complexity as possible.
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Also the user list is very responsive and extremely helpful.
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If you use Tapestry, you might look at URL_http://tynamo.org/tapestry- security+guide [ URL_http://tynamo.org/tapestry-security+guide ] It makes it very easy to get Shiro up and running in a Tapestry application and gives you some easy to use tags to use in your templates.
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Shiro isn't going to give you OpenID, OAuth or Facebook integration out of the box, but chances are high you will need to customize that part to your application.
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I believe there is some work being done to help integrate functions that will help enable these types of authentication into the framework.
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Some of the frameworks that build on Shiro may offer more of what you are looking for.
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For example, URL_http://tynamo.org/tynamo-federatedaccounts+guide [ URL_http://tynamo.org/tynamo-federatedaccounts+guide ] will give you more support for federated logins in a tapestry application.
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It is still in the early stages, but might be working looking at if you are using Tapestry.
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Even if it doesn't do exactly what you need, it might provide some good examples to look at.
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You also might be interested in: URL_http://static.springsource.org/spring- security/site/ [ URL_http://static.springsource.org/spring-security/site/ ] As a side note: In addition to security there are probably a bunch of other technologies that you will need in a typical web project.
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You may need security, persistence, basic user management, etc.
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If you create many web applications, it might be worth creating a maven archetype that lets you quickly get a new basic application up and running so you can start coding with all the initial structure already in place.
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AppFuse tries to do this, but it aims more at allowing you many different choices when it comes to web frameworks.
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If you know what technology you are going to use, having a startup app that is customized for your needs can be a huge timesaver.
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I'd look at Apache Shiro or Spring Security.
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Java library to visualize database table relationships.
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Does anyone know of a Java library that would assist in creating a GUI component to visualize the relationships between tables in an SQL database, similar to the Relationships pane in Access, or the Diagrams function in SQL Server Enterprise Manager.
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The closest I have been able to discover is the Prefuse library, however I would need to extract the database structure and build the graph manually - is there a simpler way to do this?
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Cheers.
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I would probably use URL_http://platform.netbeans.org/graph/ [Visual-Library] .
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I like Prefuse as well, but Visual Library's api is more Swing like if you are a Swing developer.
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Another option is URL_http://www.graphviz.org [GraphViz] which some people like.
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You would still have to extract the database structure yourself though this is fairly straight forward using URL_http://www.roseindia.net/jdbc/Jdbc-meta-data-get-tables.shtml [jdbc] .
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Thanks Jay, this looks promising, I'll check it out.
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yFiles is a commercial graph and visualization library for Java / .NET / Ajax / Flex / Android that has been used for the exact same use in the DBVisualizer (JDBC) SQL client (free & commercial version).
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GraphXML files exported from yFiles (and yFiles based windows in DBVisualizer) can be edited / (re)formatted in the (free) yEd Graph editor.
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Extracting the database structure through the JDBC metadata programmatically might look straightforward, but from experience I can say that there's a fair bit of difference between JDBC drivers/database platforms.
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Also, depending on database platform, details needed and authorization levels used the results yielded might differ.
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(N.B.
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I have no affiliation to either product other than being a user of the free editions of yEd and DBVisualizer, and include them in this answer because using the combination of these programs can give a good preview on the library features needed for such a project, and can be used as comparison check for its results).
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Looking for an embeddable SQL beautifier or reformatter.
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I am looking for a Java open source beautifier or reformatter for SQL that I can use to clean up DDL statements that I am generating with URL_http://www.openarchitectureware.org [openArchitectureWare] .
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Nothing in the answer to " URL_http://stackoverflow.com/questions/206441 /online-code-beautifier-and-formatter [Online-Code-Beautifier-And-Formatter] " is of use to me and I have not been able to get URL_http://www.ohloh.net/projects/simplesqlformatter [Simple-SQL-Formatter] to work for me.
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2:** org.hibernate.jdbc.util.BasicFormatterImpl got moved in release 4.0.
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It is now located at: org.hibernate.engine.jdbc.internal.BasicFormatterImpl.
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Technology marches on.
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As noted by Alex, org.hibernate.pretty.Formatter no longer exists as of version 3.3.2.GA.
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The replacement is org.hibernate.jdbc.util.BasicFormatterImpl: CODESNIPPET_JAVA1 .
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At this writing, this answer has the most upvotes, and ought to have the current correct answer in it, so I have updated it accordingly.
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Props to Alex for bringing it up.
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... ANSWER:** If you're using Hibernate, they've got one built-in: org.hibernate.pretty.Formatter CODESNIPPET_JAVA2 .
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Or DDLFormatter, which will a) Insert newline after each comma; b) Indent three spaces after each inserted newline;.
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This would appear to be exactly what I am looking for.
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Hibernate is already a core component of my solution so its not introducing a new dependency.
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FYI, BasicFormatterImpl does not handle comments '--' and DDLFormatter is even more primitive see URL_http://www.dil.univ-mrs.fr /~massat/docs/hibernate-3.1/api/o rg/hibernate/pretty/DDLFormatter.html#format().
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With Hibernate v3.3.2.GA, _org.hibernate.pretty.Formatter_ doesn't exist anymore.You can use its replacement : _org.hibernate.jdbc.util.BasicFormatterImpl_ CODESNIPPET_JAVA1 .
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Part of the eclipse URL_http://www.eclipse.org/datatools/ [Data-Tools- Platform] is the URL_http://www.eclipse.org/datatools/project_sqldevtools/ [SQL-Development-Tools-Project] .
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The page describing how to use the URL_http://www.eclipse.org/datatools/projec t_sqldevtools/sqltools_doc/SQL%20Query%20Parser%20User%20documentation.htm [SQL-Query-Parser] has an extremely brief use of URL_http://help.eclipse.org/h elp33/index.jsp?topic=/org.eclipse.datatools.doc.isv/html/reference/api/org/ec lipse/da...
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This solution would definitely work for me but I prefer the simplicity of the Hibernate solution.
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A pity I could only give you a +1.
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Have you considered: URL_http://www.sqlinform.com [ URL_http://www.sqlinform.com ] They provide both an API version and a command line version (as well as an online version).
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No knowledge of costs though.
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You could just use a URL_http://antlr.org/grammar/list [SQL-grammar] and build the AST with URL_http://antlr.org [antlr] .
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Then you can output the tree in any format you like.
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Thanks.
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That will be my plan of last resort.
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Fortunately I am too busy with a new job to look at this now and hopefully I'll get an answer before I have to roll up my sleeves.
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Perhaps URL_http://jsqlparser.sourceforge.net/ [jsqlparser] will work for you.
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Not as easy to find as you might think, as there are a fair few defunct projects out there.
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In fact i failed to find it so ended up doing my own thing (based on the h2 parser - you can contact me if all else fails).
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As a consequence i do not know if it has a beautifier, but writing one on top should be straight forward enough.
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Its based on a grammar and JavaCC, so probably a better option than reinventing this wheel with antlr in any event.
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You may find if you need to support various dialects of sql in complex statements that any approach based on a grammar will fail you.
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Would this work - URL_http://www.wangz.net/cgi- bin/pp/gsqlparser/sqlpp/sqlformat.tpl [SQL-Formatter] .
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I need to be able to do this off-line as after code generation step in my build process.
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So SQL Formatter is not an option for me.
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So this is definitely what you are looking for: URL_http://www.sqlparser.com/features/sql-formatter.php [A-SQL-formatter- library] that support Oracle, SQL Server, DB2, MySQL, Teradata and PostgreSQL.
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Is there any good dynamic SQL builder library in Java?
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Anyone knows some good SQL builder library for Java like URL_http://code.google.com/p/squiggle-sql/ [Squiggle] (not maintained anymore it seems).
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Preferably, a project in active development.
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Preferably with syntax like URL_http://framework.zend.com/manual/en/zend.db.select.html [Zend_Db_Select] , something that will allow to make a query like CODESNIPPET_JAVA1 .
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May I ask what is the advantage of the syntax above against "SELECT f1..fn FROM products ORDER BY product_id" ?
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@ItayMoav-Malimovka, Well, at least the syntax of SQL query in my case (if we take JOOQ as an example) is checked at the time you write code.
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You have full syntax autocomplete which speeds up your query-writing and makes it more error-prone.
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I agree this is something IDEs should improve upon.
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@ItayMoav-Malimovka, well... in the case of JOOQ, if I change something in my DB structure, my code will just stop compiling until I fix it according to new DB structure.
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If you have queries as a text, they will leave broken.
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As an example: I am currently working on an application that needs to create statements to work on a massive legacy database.
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Many statements share custom constraints which we build by a SQL DSL.
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