Path to project folder?

[Davide D'Angelo]

Hi, as in the object, I would like to know what is the way to point to the project folder or to ./resources ?

I see i.e. that in the text with font example you sent me it looks directly into ./resources and if I copy the project with a different name, the path is automatically updated.

But I have to read a file.csv and I would like the same behaviour.

Is it possible?

I wish it's clear what I mean..

Davide. 

[Neil C Smith]

Yes, you need a PResource property of some sort.

While the simplest thing is just @P(1) PResource file; it's better to
use Property for this and handle the fact it might not be set. eg. in
a core:custom in a data patch -

```
@P(1) @Type(PResource.class)
Property res;
@P(2) @ReadOnly
String loc;

@Override
public void init() {
res.valuesAs(PResource::from).link(r -> {
loc = r.map(PResource::toString).orElse("");
// loc = r.map(rr ->
rr.resolve(getLookup()).get(0).toString()).orElse("");
}
);
}

```

The commented out line is necessary if your project might run across
multiple computers - resolve gives you a list of possible URIs to try
loading from - if it's always a local file it isn't necessary.

You can also look at the attached custom component, to be added to a
generic data patch, which will listen on a file for changes and
automatically load the text and send from the output.

Hope that helps.

Best wishes,

Neil


--
Neil C Smith
Artist & Technologist
www.neilcsmith.net

PraxisLIVE - hybrid visual live programming
for creatives, for programmers, for students, for tinkerers
www.praxislive.org

[Davide D'Angelo]

Il giorno venerdì 5 aprile 2019 16:26:16 UTC+2, Neil C Smith ha scritto:

On Fri, 5 Apr 2019 at 14:55, Davide D'Angelo <77d...@gmail.com> wrote:
> Hi, as in the object, I would like to know what is the way to point to the project folder or to ./resources ?
> I see i.e. that in the text with font example you sent me it looks directly into ./resources and if I copy the project with a different name, the path is automatically updated.
> But I have to read a file.csv and I would like the same behaviour.
> Is it possible?

Yes, you need a PResource property of some sort.

While the simplest thing is just @P(1) PResource file; it's better to
use Property for this and handle the fact it might not be set. eg. in
a core:custom in a data patch -

```
    @P(1) @Type(PResource.class)
    Property res;
    @P(2) @ReadOnly
    String loc;

    @Override
    public void init() {
        res.valuesAs(PResource::from).link(r -> {
            loc = r.map(PResource::toString).orElse("");
            // loc = r.map(rr ->
rr.resolve(getLookup()).get(0).toString()).orElse("");
        }
        );
    }

```

I have two problems here, one is the leading "file:", while the other is with the SPACE char inside the praxis automatic project folder name.

i.e. to solve I've done this:

// Old working address:
//String fileName = "/home/dab/PraxisLIVE Projects/CueCall_v0_91/resources/Show.csv";
// Way to make PResource work:

String[] output = loc.substring(5).split("%20"); // this cut the leading "file:" and change "%20" with " ".

File file = new File(output[0]+" "+output[1]);

[Davide D'Angelo]

Apart from that, I can confirm that if I copy the project folder with another name, that address changes on the new folder as I needed.

Thank you Neil.

Regards, Davide.

[Neil C Smith]

On Tue, 9 Apr 2019, 13:59 Davide D'Angelo, <77d...@gmail.com> wrote:

I have two problems here, one is the leading "file:", while the other is with the SPACE char inside the praxis automatic project folder name.

Yes, it's a URI wrapper. Rather than toString() you can use value(), or the URI list returned from resolving, and pass that into File constructor (or newer Path class) 

Best wishes, 

Neil