DELETE bucket operation deletes a bucket from the QueryIO cluster.
Following code is used to delete a bucket from QueryIO server.
HttpURLConnection object is used to create a DELETE request with bucket name appended to the URL. HttpStatus is used to compare the response code to SC_NO_CONTENT i.e. no content found at bucket location.
import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; import org.apache.http.HttpStatus; public class BucketOperations { /* * This program will delete the given bucket * @param serverURL: URL of S3 Compatible REST server(http://<S3 server IP> : <S3 server port> /queryio/). For example: http://192.168.0.1:5667/queryio/ * @param token: authorization token. * @bucketName: Name of the bucket to be deleted. */ public void deleteBucket(String serverURL, String token, String bucketName) throws Exception { URL url = null; HttpURLConnection httpCon = null; try { /* append "/" at end of serverURL */ if (!serverURL.endsWith("/")) { serverURL = serverURL + "/"; } url = new URL(serverURL + bucketName); //creates a URL with appending bucket name at end //Returns a URLConnection object that represents a connection to the remote object referred to by the URL. httpCon = (HttpURLConnection) url.openConnection(); httpCon.setDoOutput(true); // to use the URL connection for output httpCon.setRequestMethod("DELETE"); //DELETE request is used. httpCon.setRequestProperty("authorization", token); //Provides token for authorization httpCon.connect(); //Opens a communications link to the resource reference by the URL if (httpCon.getResponseCode() == HttpStatus.SC_NO_CONTENT) { //Bucket deleted if response code is HttpStatus.SC_NO_CONTENT System.out.println("\nBucket Deleted Succesfully..."); } else { System.out.println("\nBucket not Deleted..!"); } } finally { //close connection if (httpCon != null) { httpCon.disconnect(); } } } }