Get RSS information -> XML error

Contributed Library Questions

paxpaxx

Get RSS information -> XML error

in Contributed Library Questions • 1 year ago

Hello everyone,

I'm new on processing and scripting to.

I trie to get rss informations with processing and to convert them into osc.

For the moment is my code, but it doesn't work and I don't understand why !

Processing ask me to "define an explicit constructor" but I don't understand what is it...

If you can help me, your welcome :)

I use oscP5 library.

Thanks !

PAx

------------------

// Load RSS feed

String url = "http://rss.liberation.fr/rss/9/"; // Type here the RSS URL

XML rss = new XML(this, url);

import oscP5.*;

import netP5.*;

OscP5 oscP5;

NetAddress myRemoteLocation;

// Get title of each element

// Global setup

void setup() {

oscP5 = new OscP5(this,12000);

myRemoteLocation = new NetAddress("127.0.0.1",9000); //select here the IP address and the port number

}

void draw() {

XMLElement[] titleXMLElements = rss.getChildren("channel/item/title");

for (int i = 0; i < titleXMLElements.length; i++)

{

String title = titleXMLElements[i].getContent();

println(i + ": " + title.length());

OscMessage myMessage = new OscMessage("/rss/title/length");

myMessage.add(title.length()); /* add an int to the osc message */

oscP5.send(myMessage, myRemoteLocation);

delay(1000);

}

Replies(4)

PhiLho

Re: Get RSS information -> XML error

1 year ago

Not having these libraries, I cannot test your code (therefore, I moved the topic here).
You should report the exact error message...

Note: the 'this' isn't defined at the global level (outside any function), so move the new XML(this, url); part to setup().

paxpaxx

Re: Get RSS information -> XML error

1 year ago

Hello,

Sorry for the wrong place!

There is the exact message :

Default constructor cannot handle exception type IOException thrown by implicit super constructor. Must define an explicit constructor

Do you think there is a link with the undefined "this" ?

Thanks !

PAx

PhiLho

Re: Get RSS information -> XML error

1 year ago

I see...
The problem is that new XML() must be in a try/catch statement.
To avoid this, the newest PApplet provides the xml = loadXML(str) method.

paxpaxx

Re: Get RSS information -> XML error

1 year ago

It works !

Thank you !

// Load RSS feed

String url = "http://rss.liberation.fr/rss/9/"; // Type here the RSS URL

XML rss = loadXML(url);

import oscP5.*;

import netP5.*;

OscP5 oscP5;

NetAddress myRemoteLocation;

// Get title of each element

// Global setup

void setup() {

oscP5 = new OscP5(this,12000);

myRemoteLocation = new NetAddress("127.0.0.1",9000); //select here the IP address and the port number

}

void draw() {

XML[] titleXML = rss.getChildren("channel/item/title");

for (int i = 0; i < titleXML.length; i++)

{

String title = titleXML [i].getContent();

println(i + ": " + title.length());

OscMessage myMessage = new OscMessage("/rss/title/length");

myMessage.add(title.length()); /* add an int to the osc message */

oscP5.send(myMessage, myRemoteLocation);

delay(1000);

}

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