baybatu

Couchbase view'larında arama yapılacak alan string türünde fakat arama sorgusu(key) sayı formatında ise bu durumda Couchbase'in 1.4.9'a kadar olan java client'ları bu key'i sayı formatında sorguya gönderir ve boş sonuç döner.

Örneğin şöyle bir Couchbase dokümanımız olsun:

{
	"isim": "Batuhan",
	"numara": "1234"
}

baybatu

import groovy.xml.MarkupBuilder

/**
 * Produces xml file that has no whitespace character.
 * 
 * new IndentPrinter(out, "", false) section does all things we need to do.
 * 
 * Example output:
 * <products><product><title>product title</title><price>100</price></product></products>
 *

baybatu

def foo(arg) { 
    println(arg)
}

def Bar(arg) {
    println(arg)
}

foo "berbat"
foo("berbat")

baybatu

I encountered with a problem in WebLogic about to find full path of .p12(private key file) that needs to be specified for Google Analytics API authentication.

My private key file (google_analytics_private_key.p12) was in path '<PROJECT_PATH>/src/main/resources/keys/google_analytics_private_key.p12' in project source. Key loader method was such below and it worked in Tomcat flawlessly but not in WebLogic.

public String getGoogleAccountPrivateKeyFile() {
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL resource = loader.getResource("/keys/google_analytics_private_key.p12");
    return resource.getFile();
}

baybatu

Shell command that gives running processes associated with each open port.

netstat -tulpn

baybatu

I ran into similar problem, where I was trying to save an object where his id was a primitive field (long), and at the time of create the object, the id was set to 0 by default, and Hibernate assumed I wanted to update the row with id = 0 (which obviously doesn't exist). My solution was change the id field to Long (wrapper), and that way, when I create a new instance the id is set to null, and Hibernate understands I am inserting a new element to the database. I hope it helps. Thanks.

Source: http://stackoverflow.com/a/30492460

baybatu

-- Insert entity into MY_TABLE table using 'entity_id' and 'name' fields if not exists.
-- Otherwise, update row's 'name' field.
MERGE INTO MY_TABLE TBL USING dual ON (TBL.entity_id = ?) 
WHEN NOT MATCHED THEN INSERT (entitiy_id, name) VALUES (?, ?) 
WHEN MATCHED THEN UPDATE SET TBL.name = ?

baybatu

jar tf my-jar-file.jar

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// 'delete' is a process example
public void deleteOldFiles(File path) {
  long startOfDay = new Date().clearTime().time
  path.eachFile { file ->
    if (file.lastModified() < startOfDay) {
      file.delete()
    }
  }
}

baybatu

Grails'de render metoduna (1) adresindeki file ve fileName parametrelerini vererek kullanıcının istediğimiz dosyayı indirmesini sağlayabiliriz. Fakat eğer tarayıcı "dosya bulunamadı" hatası veriyorsa bu durumda Grails'deki Config.groovy dosyasında bulunan grails.mime.types listesini kontrol etmek gerekir. Eğer indirmek istediğimiz dosya türü için gerekli mime türü bu listede yoksa hata alırız. Örneğin zip dosyası indirtmek istiyorsak bu durumda listeye zip:'application/zip' kaydını girmek gerekir.

(1): http://docs.grails.org/2.4.4/ref/Controllers/render.html

Kaynak: http://mrhaki.blogspot.com.tr/2013/09/grails-goodness-render-binary-output.html