Groovy Tips and Tricks

 
// import the logicmonitor http and jsonslurper classes
import com.santaba.agent.groovyapi.http.*;
import groovy.json.JsonSlurper;

// get the host, credentials, and mgmt station baseurl from the device property table
hostname = hostProps.get("system.hostname");
userid = hostProps.get("netapp.rest.user");
passwd = hostProps.get("netapp.rest.pass");
base_url = hostProps.get("netapp.rest.url");

// construct the full endpoint url
endpoint_url = base_url + "/devmgr/v2/storage-systems/" + hostname + "/flash-cache";

// fetch data from the API
http_body = HTTP.body(endpoint_url, userid, passwd);

// in this case, the http body is a json data structure
// let's use jsonslurper to turn the json text into an groovy object
json_slurper = new JsonSlurper();
response_obj = json_slurper.parseText(http_body);

// iterate over the response object, assigning key-value pairs
response_obj.each()
{ key, value ->
    // print each key-value pair
    println key + "=" + value;
}

// return with a response code that indicates we ran successfully
return (0);

// get the device hostname and cli credentials
hostname = hostProps.get("system.hostname");
cli_user = hostProps.get("cli.user");
cli_pass = hostProps.get("cli.pass");

// define the external commmand you want to run
command = "/usr/local/bin/ipmiutil sensor -c -N " + hostname + " -U " + cli_user + " -P " + cli_pass;

// setup some buffers to hold process stdout & stderr
process_output = new StringBuffer();
process_errors = new StringBuffer();

// execute the command
process = command.execute();
// collect the stdout & stderr from the process
process.waitForProcessOutput(process_output, process_errors);

// kill the process if it runs for longer than we expect (30 seconds)
process.waitForOrKill(30000);

// did the process exit with a successful return code?
if (process.exitValue() == 0)
{
    // yes, the process ran successfully -- process the output as necessary and print it out 
    println process_output;

    // return with a response code that indicates we ran successfully
    return(0);
}
else
{
    // no, the process failed -- print some diagnostics and stderr
    println 'Execution of Process: "' + command + '" failed with an exit code of "' + process.exitValue() + '"';
    println process_errors;

    // return with a response code that indicates some failure
    return(1);
}

 
// import the xbill dns helper class
import org.xbill.DNS.*;

// do a DNS lookup, 
records = new Lookup("gmail.com", Type.MX).run()

// iterate through the records list
records.each() 
{ address ->
    // print the address record    
    println address;
}
// return with a response code that indicates we ran successfully
return(0);