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I have a big code written in JSP and ADF which is related to a big database.
The client wants to make a report generator for him, So he can create reports with the columns he wants..
What's the best choice of an open source Library I can use ?
Oracle Apex' Interactive Reports offer quite a lot for end users - your (I mean, developer's) query might look likeselect * from ..., and end user can then select columns he wants, group them, perform filters, aggregates, draw charts ... Really nice. Best of all: it is Oracle, and it is free.
Printing, though, isn't that simple, but - from my experience, users (for some reason) adore Excel. Regarding the fact that you can easily download report into Excel, that might suit their needs.
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The company I work for wants to have the PDFs they are releasing to clients automatically reviewed, other than verifying some parts of the text, are there any good tools or opensource to allow you to be certain that a PDF that a client receives is what you expect it to be?
A lot of PDFs are generated dynamically so I don't have a clear baseline for exactly 1 for 1 how the files should look like.
I'm looking for solutions that grant me security in terms of sheet structure rather than text
using iText (in particular pdf2Data) you can extract all the information from a PDF file, and match it against a given template.
Going for this approach, you can easily verify whether a PDF contains all the information that you would expect to have in it.
Check out pdf2Data here:
http://pdf2data.online/
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I am looking for a interactive reporting framework / tool / engine in java similar to Saiku - http://demo.analytical-labs.com/. However, some thing that doesn't work on Cubes but rather 2-dimensional "datasets".
The reporting tool should provide basic features such as filter, sort, aggregate, export, annotate, etc.
Is there any such open source reporting tool?
Jaspersoft has come up with Ad Hoc reporting which is exactly what I want.
It allows to create domains from RDBMS, avoiding MDX hussle and you can still view your data in multiple dimensions using Ad Hoc reporting.
Jaspersoft and SpagoBI provide domains where you can specify your dataset and build reports over them. Both interactive and scheduled.
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i am wondering if there is any opensource and freeware solution to extract roads from an image, like google map images?
i think it maybe possible to code something like that with AI solutions, but i dont know where to start
thnx
If you're mainly interested in the results, instead of an algorithm, you may want to check out OpenStreetMaps.
Otherwise, you should focus on computer vision solutions and a framework such as OpenCV in order to process raw imagery and filter out streets based on their features – which is not trivial.
This sounds like it would be a valuable resource to cartographers ranging from 'street directory' publishers to the military.
I'm sure proprietary commercial software exists, but open source and freeware — probably not.
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I need a tool for generating control flow in java, but not a visual draw, something that I can work with like with path conditions or so.
Anyone ?
To future record, what I´ve found that best suits to my needs is Soot.
http://www.sable.mcgill.ca/soot/
The ASM library can do that, at the JVM-bytecode level. See Method Analysis and Control flow analyses in http://download.forge.objectweb.org/asm/asm4-guide.pdf (page 121).
Atlas is an Eclipse plugin that enables program analysis. It has a querable graph database that includes the control flow graph (as well as data flow and other relationships).
Maybe this is what you were looking for http://www.jboss.org/jbpm
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I would like to get your opinion on this topic : I'd like to build some social/collaborative app : not much media sharing, but mainly tagging, collaborative text content (as wikis), user profile, tagging and some points system (digg/hackernews-like ?)
The choice of webapp framework is generally not influenced by the problem domain of webapp that you'll be building. Some frameworks are better at certain processes, like page-flow wizards, but you couldn't really pick one on the basis of your described type of application.
The general advice holds here:
pick the framework you're already familiar with, or
pick one you think looks easiest, or
pick one you want to learn.