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Adobe Experience Manager - Create an OSGI Configuration

 In this article, let's create an OSGi configuration, configure it and use it in AEM code. So now let's get started with the creation of an OSGi configuration. Technical details and Assumptions: All the following details are tested in AEM version 6.5.8, Java version 11.0.2 Creation of OSGi configuration: To create an OSGi configuration we need to create an ObjectClassDefinition. I have included a sample OCD configuration, which can be used as a reference to create one. The next step would be to create an interface and an implementation that can help fetch the OSGi configurations.  Interface: Implementation: Let's try to use the OSGi configuration created so far in Models/Servlets. For demonstration purposes, I used AEM Models here, but the same can be implemented in Servlets too. Now that we have created the OSGi configuration. Once building the code, we should be able to see the OSGi configuration in the web console (http://localhost:4502/system/console/configMgr) C...

Implementation of Subnetting

This java program helps in identifying the subnet through analyzing some basic details based on the IP Address .

subnet.java:

import java.util.Scanner;
class subnet{
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
System.out.print("Ip address: ");
String ip = sc.nextLine();
String split_ip[] = ip.split("\\."); //SPlit the string after every .
String split_bip[] = new String[4]; //split binary ip
String bip = "";
for(int i=0;i<4;i++){
split_bip[i] = appendZeros(Integer.toBinaryString(Integer.parseInt(split_ip[i])));
bip += split_bip[i];
}
System.out.println("Binary Format "+bip);
System.out.print("Enter the number of addresses in each subnet: ");
int n = sc.nextInt();

//Calculation of mask
int bits = (int)Math.ceil(Math.log(n)/Math.log(2));
int mask = 32-bits;
System.out.println("Subnet mask = "+mask);

//Calculation of first address and last address
int fbip[] = new int[32];
for(int i=0; i<32;i++) fbip[i] = (int)bip.charAt(i)-48; //convert cahracter 0,1 to integer 0,1
for(int i=31;i>31-bits;i--)//Get first address by ANDing last n bits with 0
fbip[i] &= 0;
String fip[] = {"","","",""};
for(int i=0;i<32;i++)
fip[i/8] = new String(fip[i/8]+fbip[i]);
System.out.print("Network address is = ");
for(int i=0;i<4;i++){
System.out.print(Integer.parseInt(fip[i],2));
if(i!=3) System.out.print(".");
}
System.out.println();

int lbip[] = new int[32];
for(int i=0; i<32;i++) lbip[i] = (int)bip.charAt(i)-48; //convert cahracter 0,1 to integer 0,1
for(int i=31;i>31-bits;i--)//Get last address by ORing last n bits with 1
lbip[i] |= 1;
String lip[] = {"","","",""};
for(int i=0;i<32;i++)
lip[i/8] = new String(lip[i/8]+lbip[i]);
System.out.print("Broadcast address is = ");
for(int i=0;i<4;i++){
System.out.print(Integer.parseInt(lip[i],2));
if(i!=3) System.out.print(".");
}
System.out.println();
}
static String appendZeros(String s){
String temp = new String("00000000");
return temp.substring(s.length())+ s;
}
}

Output:

Comments

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