Formatting a URL link in Drupal using function l

Another nice function in Drupal. It's called function l.
It formats a URL link as an HTML anchor tag.
I know it looks really easy and simple, it's just nice to use it after doing that manually many times.

$option = array();
$option['attributes'] = array('title' => $label);
l($label_trimmed, $uri['path'], $option));// will output [a href="$uri-path" title="$label">[/a]

Truncating a string on a word boundary in Drupal

Typical task: "truncate a string only on a word boundary and add a some postfix to resulting string". Every developer did it many times, I'm sure. Here is a how Drupal solves it with it's api: function views_trim_text

define(MAX_LENGTH, 30);

$alter = array(
    'max_length' => MAX_LENGTH,
    'word_boundary' => TRUE,
    'ellipsis' => TRUE
);

$mystring = "truncate a string only on a word boundary and add a some postfix to resulting string";
$mystring = views_trim_text($alter, $mystring); //result is 'truncate a string only on a...'

Issues when importing WSDL files into Web Service Consumer

Recently I faced up with WSDL which I couldn't import into Web Service Consumer. Our consumer worked well from last 5 years but it is a long period and during that time our Service Provider was updated a lot so we decided to update our Consumer as well. Guess everything went fine?

No WSDL was returned from the URL

I simply created new Consumer in Domino Designer, set URL to our WSDL, picked Java and clicked OK. Oops...

---------------------------
Domino Designer
---------------------------
No WSDL was returned from the URL:
https://api.ourserver.com/secure/api1/WebService?WSDL
---------------------------
OK
---------------------------

The requested operation failed: no import files

Wow, thought I :) let's try to import WSDL as Lotus Script then (just to see if it is not related to Java)

---------------------------
IBM Domino Designer
---------------------------
The requested operation failed: no import files
---------------------------
OK   
---------------------------

Name too long

Hey, what? This WSDL is used by many another applications without any issues, what is going on!? I downloaded WSDL as file to my local PC and tried to import it as Lotus Script again. This time it went fine (except issues with Name too long). Well, great news anyway, at least everything works when WSDL is a local file.

The Web Service implementation code generated from the provided WSDL could not be compiled, so no design element was created

Ok, it worked for Lotus Script, let's set now Java...

---------------------------
IBM Domino Designer
---------------------------
The Web Service implementation code generated from the provided WSDL could not be compiled, so no design element was created.  Please correct the WSDL and try again.  The errors are located in the following file:: C:\Users\dpa\AppData\Local\Temp\notes90C43B\47238811.err
---------------------------
OK   
---------------------------

OK, it's time to blame Designer and IBM! Why it is so difficult just to import WSDL? All another application that use WSDL from our server did not have such issues. It's just not fair :). Found a file with error and quite typical line: java.lang.OutOfMemoryError: Java heap space. I knew what to do, I increased HTTPJVMMaxHeapSize and JavaMaxHeapSize to 512M, restarted Designer/Notes and tried again. Worked well! I restored original values to HTTPJVMMaxHeapSize and JavaMaxHeapSize after that.

The system is out of resources.
Consult the following stack trace for details.
java.lang.OutOfMemoryError: Java heap space
at com.sun.tools.javac.util.Position$LineMapImpl.build(Position.java:151)
at com.sun.tools.javac.util.Position.makeLineMap(Position.java:75)
at com.sun.tools.javac.parser.Scanner.getLineMap(Scanner.java:1117)
at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:524)
at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:562)
at com.sun.tools.javac.main.JavaCompiler.parseFiles(JavaCompiler.java:816)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:739)
at com.sun.tools.javac.main.Main.compile(Main.java:365)
at com.sun.tools.javac.main.Main.compile(Main.java:291)
at com.sun.tools.javac.main.Main.compile(Main.java:282)
at com.sun.tools.javac.Main.compile(Main.java:99)
at lotus.notes.internal.IDEHelper.compile(Unknown Source)

Simple thing however it costed few hours for me. Hope it will save some time for other people.

Track events using google analytics via hitCallback

If you are using google analytics to track clicks/events then at some point you may want to track submits of forms. The only one way to do that is to use hitCallback function. It is easy to do it, however many people forget to verify cases when google analytics library is blocked, f.x. by extensions AdBlock or Ghostery) and it means hitCallback will not be defined and simply will not work.

Google analytics classic

jQuery(".form").on("submit", function(f) {
  var _this = this;
  _gaq.push(['_set','hitCallback',function() {
    $(_this).parents('form').first().submit();
  }]);
  _gaq.push(['_trackEvent', '/signup']);
  // here is check if google-analytics.js is loaded and if not - return true, otherwise false
  return !window._gat;
})

Google analytics universal

jQuery(".form").on("submit", function(f) {
  var _this = this;
  ga('send', 'pageview', '/signup', {
    'hitCallback': function() {
      $(_this).parents('form').first().submit();
    }
  })
  // here is check if google-analytics.js is loaded and if not - return true, otherwise false
  return !(ga.hasOwnProperty('loaded') && ga.loaded === true);
})

Disabling certificate validation in Java

In case you need to disable validation of certificate here is Java snippet.

 import javax.net.ssl.*;  
 import java.security.SecureRandom;  
 import java.security.cert.X509Certificate;  
 public static void disableCertificateValidation() {  
  // Create a trust manager that does not validate certificate chains  
  TrustManager[] trustAllCerts = new TrustManager[] {   
  new X509TrustManager() {  
   public X509Certificate[] getAcceptedIssuers() {   
   return new X509Certificate[0];   
   }  
   public void checkClientTrusted(X509Certificate[] certs, String authType) {}  
   public void checkServerTrusted(X509Certificate[] certs, String authType) {}  
  }};  
  // Ignore differences between given hostname and certificate hostname  
  HostnameVerifier hv = new HostnameVerifier() {  
  public boolean verify(String hostname, SSLSession session) { return true; }  
  };  
  // Install the all-trusting trust manager  
  try {  
  SSLContext sc = SSLContext.getInstance("SSL");  
  sc.init(null, trustAllCerts, new SecureRandom());  
  HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());  
  HttpsURLConnection.setDefaultHostnameVerifier(hv);  
  } catch (Exception e) {}  
 }  

I took code from here: Java client certificates over HTTPS/SSL

Related topics:
IBM Domino Java: No trusted certificate found. Fail?
Domino and No trusted certificate found
Disabling certificate validation in Java