“Reverting” the auto-fill in emacs

Most of the time I use emacs with auto-fill mode breaking any line at 70. Sometimes though I’d like a paragraph to be reverted to a single line; for example for copy-pasting into other editors where it could breaks the formatting. Here’s how

M-x set-variable RET fill-column RET 100000
M-q (on the desired paragraphs)
M-x set-variable RET fill-column RET 70

First line set the fill-column to a large amount, the second will re-run the fill-paragraph and the third will reset the fill-column to my usual value

WiFi disconnect while sleeping on Mavericks

Was just provided of a new laptop with Mac OS X Mavericks on it. Other than I think it’s a very bad product and made me seriously think about moving back to windows, I tried at all costs to solve the main issue I had: if the laptop goes to sleep the WiFi disconnects.

I can understand that for the majority of users this can be awesome but I simply hate it. I can have long-running process that want to have it running for the whole night.

Searched around the web here and there and tried many things. Reached the point where I think it’s not possible to disable this feature, therefore I went in disabling the Sleep completely. This made the trick in my situation.

Issue the following command on terminal:

$ sudo pmset -a sleep 0

Here’s my complete pmset settings:

$ pmset -g
Active Profiles:
Battery Power        -1*
AC Power        -1
Currently in use:
 standbydelay         10800
 standby              1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            0
 gpuswitch            2
 disksleep            0
 sleep                0
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         2
 acwake               0
 lidwake              1


What’s my CQ WCM mode?

CQ offers you 4 different type of WCM modes: edit, preview, design and disabled. The first three are actually different modes while the forth is when none of them is available and, at the end, always represent the situation on the publish site.

Differentiate on the Java side is very easy as it provides java API and it provides Javascript API for doing it as well. Nevertheless the same object that gives you the mode is not (and should not be) available on the publish which will always end in ifs here and there.

This script should help you and it should be possible to drop it as part of your clientlibs and ready to be used for he use case.

Something very simple that hopefully will help your daily life. 🙂


How many CQ5 concurrent users?

Defining the concept of concurrent user in the web world is difficult and it’s even more difficult to do it in CQ as it doesn’t keep any session informantion. Technically speaking I define two users as concurrent when a request from user A has not finished yet that the one from B starts.

Don’t know if it’s possible to achieve such information just by looking at CQ logs but the analyse-access tool help you in the analysis of the access.log files that CQ produces giving you some numbers in a very handy markdown format that can be then converted to PDF for presenting it to the business.


CQ5/OSGi reference a unique service implementation

You should never ever do it. If you find yourself in the need of this; there’s something extremely wrong in your code. Nevertheless I found myself in needing it for some old legacy code that was almost impossible to fix in a reasonable time.

The question is: how can I reference a specific implementation of a service/component in an OSGi (therefore CQ5 as well) environment?

In the component, where you need to reference the implementation you can specify something like the following

Bar bar;

In the component implementing the service you’ll have something like

@Component(immediate=true, metatype=false, name="com.foo.BarImpl")
class BarImpl implements Bar{

By default the framework will assign the fully qualified class name as component name. I prefer to specify it for making the code more readable and no one prohibit you to specify any arbitrary string like mickey mouse or goofy as component name.


Customising CQ5’s SiteAdmin actions

You could have the need to customise the actions available via the siteadmin interface in CQ

For better understaing the one highlighted in the below screenshot

Screen shot 2013-02-28 at 16.04.10

to do so you simply have to copy the




having care of recreating the correct folder structure and node types.

here a json extract


    "jcr:createdBy": "admin",
    "jcr:created": "Thu Oct 18 2012 16:55:43 GMT+0100",
    "jcr:primaryType": "nt:folder",
    "core": {
        "jcr:createdBy": "admin",
        "jcr:created": "Thu Oct 18 2012 16:55:43 GMT+0100",
        "jcr:primaryType": "nt:folder",
        "content": {
            "jcr:mixinTypes": [
             "jcr:createdBy": "admin",
             "jcr:created": "Thu Oct 18 2012 16:55:43 GMT+0100",
             "jcr:primaryType": "sling:Folder",
             "siteadmin": {
                "xtype": "siteadmin",
                "sling:redirect": false,
                "sling:resourceType": "cq/ui/components/widget",
                "jcr:mixinTypes": [
                "jcr:title": "CQ5 WCM",
                "consoleDescription": "Create and manage multiple websites.",
                "iconClass": "siteadmin",
                "jsLibs": [
                "sling:vanityPath": "/siteadmin",
                "consoleTitle": "Websites",
                "jcr:primaryType": "cq:Widget",
                "sling:vanityOrder": 300,
                "actions": {
                   "jcr:primaryType": "nt:unstructured"
                   // here all the actions as subnodes

Then you can simply customise the action you want: for example you could change the target, the conditions, the text or even the handler if you implement your own one.

Following an extract of the “Activate” menu (the OOTB one). I find each attribute self-explainatory.

"activate": {
    "iconCls": "cq-siteadmin-activate-icon",
    "cls": "cq-siteadmin-activate",
    "context": [
    "jcr:primaryType": "nt:unstructured",
    "split": true,
    "text": "Activate",
    "menu": {
      "jcr:primaryType": "nt:unstructured",
      "activateNow": {
        "isDefaultAction": true,
        "handler": "CQ.wcm.SiteAdmin.activatePage",
        "cls": "cq-siteadmin-activate-now",
        "conditions": [
        "context": [
        "target": "CQ.wcm.SiteAdmin.getAnyTarget",
        "jcr:primaryType": "nt:unstructured",
        "text": "Activate"
      "activateLater": {
        "privileges": [
        "handler": "CQ.wcm.SiteAdmin.scheduleForActivation",
        "cls": "cq-siteadmin-activate-later",
        "context": [
        "conditions": [
        "target": "CQ.wcm.SiteAdmin.getTargetFromList",
        "jcr:primaryType": "nt:unstructured",
        "text": "Activate Later..."

if you instead just need to hide/show some commands on certain groups of users, you won’t need to custimise anything, just play with ACL! (See reference).

Once you overlayed you could realise that your changes are not reflected by the UI. This is done by the sling:vanityOrder. As
/siteadmin is a vanity path pointing to wcm/core/content/siteadmin. The /libs one are picked up. The default value (as of 5.5) is 300. Just update the one under /apps to a greater value. 301 is enough. As practice I like to have my vanitypath order as 400+ though.