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https://github.com/xquery/dashml

create responsive, lightweight dashboards with MarkLogic 7
https://github.com/xquery/dashml

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create responsive, lightweight dashboards with MarkLogic 7

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README 

        
# dashML v0.1



dashML is built with [RXQ](https://github.com/xquery/rxq) and included in that repo as an example of building RESTful apps with MarkLogic.



I thought it would be fun to cook up a little bauble that leverages new [features](http://docs.marklogic.com/guide/relnotes/chap3) found in MarkLogic 7.



[MarkLogic 7.0](http://developer.marklogic.com) introduces more tools for monitoring the performance of your MarkLogic server. dashML leverages these [tools](http://docs.marklogic.com/guide/monitoring/history) to make it easy to create lightweight, dashboards giving you up-to-date information on the health and performance of your applications.



dashML provides a tabbed interface of MarkLogic server history monitoring metrics.

![dashML](src/xquery/resources/history-screenshot.jpg) 



This provides a snapshot of the health of your server which you can view on your smart phone, tablet or any browser that supports responsive templates.

## Requirements



[MarkLogic 7.0](http://developer.marklogic.com) (latest version)



## To install



First, you need to download and install MarkLogic 7.



Second, create an appserver, providing the following details;



* **root**: provide directory where dashml/src/xquery was copied to your filesystem (ex. /opt/dashml/src/xquery)

* **port**: choose a port ####

* **set database**: set to Meters database

* **set error handler**: /rxq-rewriter.xqy?mode=error

* **set rewrite handler**: /rxq-rewriter.xqy?mode=rewrite



If you are installing on a brand new ML7 instance, you may have to wait a little while to give a chance for some metrics to be collected before building (and viewing) dashboards.



With everything setup, you can now point your web browser to http://localhost:####  (where ### is the port number you choose when setting up appserver) and you should see dashML homepage.



Click onto instructions tab or go direct to building dashboards.



## Using dashML



Just goto http://localhost:####/instructions



then start building simple dashboards.



## To install/run tests



create an appserver, providing the following details;



* **root**: provide directory where dashml/src ison your filesystem

* **port**: choose a port ####

* **set database**: set to Meters database

* amend src/test/dash-model line 59 to point to full path where etc/dash.xsd is



Now point your web browser to http://localhost:####/xray which will run all tests.



## FAQ



* 'X is not working' - make sure you have run long enough for meters to be generated (or switch to last 60 minutes)

* submit an [issue](https://github.com/xquery/dashML/issues)



## TODO



some thoughts on future features



* make widgets and dash standalone (consume json endpoints)

* add resource selection

* different widget types

* add replica to database

* customise everything (colors, etc)

* reordering

* add thresholds for alerting

* add start & end selection



## Caveat Emptor



* time constraints = quick code generate ('though there are some xray unit tests' he says in a hopeful tone ...)

* I made GET do bad things (as in not idempotent)

* no error checking (other then schema validation)

* probably a long list of other things done poorly ...



## License



dashML is released under Apache License, Version 2.0



## More Info on technologies



The following are links on the other technologies used in this application.



* RXQ github [repository](https://github.com/xquery/rxq).

* [purecss](http://purecss.io/) - css templates

* [EXQuery RESTXQ Draft Specification](http://exquery.github.com/exquery/exquery-restxq-specification/restxq-1.0-specification.html#method-annotation).

* Adam Retter's [RESTXQ](http://archive.xmlprague.cz/2012/presentations/RESTful_XQuery.pdf).

* [JSR-311](http://download.oracle.com/otndocs/jcp/jaxrs-1.0-fr-eval-oth-JSpec/).

 

The usage of RESTXQ annotations turns out to be a very concise way of building up flexible RESTFul interfaces, as well as providing the basis from which to create MVC architectures for our XQuery web applications.