CouchDB connection
1. Log into the platform.
2. Create environment with CouchDB database:
3. Check your email box for getting credentials to access CouchDB node:
4. Then create a file mydb.cfg in Config Manager (folder HOME). This file contains information on connecting to CouchDB. This info will be read by your application:
5. In this step you have to prepare part of java code that creates connection to your DB:
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| import com.fourspaces.couchdb.*;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
public class CouchdbConnector {
public boolean createDatabase(String name) {
try {
//Read file mydb.cfg
Properties prop = new Properties();
prop.load(new FileInputStream(System.getProperty("user.home") + "/mydb.cfg"));
//Getting info we need: host, port, username, password
String host = prop.getProperty("host").toString();
int port = Integer.parseInt(prop.getProperty("port").toString());
String username = prop.getProperty("username").toString();
String password = prop.getProperty("password").toString();
Session dbSession = new Session(host, port, username, password);
dbSession.createDatabase(name);
try {
dbSession.getDatabase(name);
} catch (Exception e) {
return false;
}
} catch (IOException ex) {
Logger.getLogger(CouchdbConnector.class.getName()).log(Level.SEVERE, null, ex);
}
return true;
}
}
|
NOTE: you have to upload all libraries that CouchDB connection needs!
6. Deploy application: couchdb.war
7. Run deployed application and input database name you want to create:
Input database name:
8. Check CouchDB server if it contains “new” database:
What’s next?
