| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.jclouds.examples.rackspace.cloudfiles; |
| |
| import com.google.common.io.ByteSource; |
| import com.google.common.io.Closeables; |
| import com.google.common.io.Files; |
| import org.jclouds.ContextBuilder; |
| import org.jclouds.blobstore.BlobStore; |
| import org.jclouds.blobstore.BlobStoreContext; |
| import org.jclouds.blobstore.domain.Blob; |
| import org.jclouds.http.HttpRequest; |
| import org.jclouds.http.HttpResponse; |
| import org.jclouds.http.HttpResponseException; |
| import org.jclouds.io.Payload; |
| import org.jclouds.io.Payloads; |
| import org.jclouds.openstack.swift.v1.blobstore.RegionScopedBlobStoreContext; |
| |
| import java.io.Closeable; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import static org.jclouds.examples.rackspace.cloudfiles.Constants.CONTAINER; |
| import static org.jclouds.examples.rackspace.cloudfiles.Constants.PROVIDER; |
| import static org.jclouds.examples.rackspace.cloudfiles.Constants.REGION; |
| |
| /** |
| * The Temporary URL feature (TempURL) allows you to create limited-time Internet addresses which allow you to grant |
| * limited access to your Cloud Files account. Using TempURL, you may allow others to retrieve or place objects in |
| * your Cloud Files account for as long or as short a time as you wish. Access to the TempURL is independent of |
| * whether or not your account is CDN-enabled. And even if you don't CDN-enable a directory, you can still grant |
| * temporary public access through a TempURL. |
| * |
| * This feature is useful if you want to allow a limited audience to download a file from your Cloud Files account or |
| * website. You can give out the TempURL and know that after a specified time, no one will be able to access your |
| * object through the address. Or, if you want to allow your audience to upload objects into your Cloud Files account, |
| * you can give them a TempURL. After the specified time expires, no one will be able to upload to the address. |
| * |
| * Additionally, you need not worry about time running out when someone downloads a large object. If the time expires |
| * while a file is being retrieved, the download will continue until it is finished. Only the link will expire. |
| * |
| */ |
| public class GenerateTempURL implements Closeable { |
| private static final String FILENAME = "object.txt"; |
| private static final int TEN_MINUTES = 10 * 60; |
| |
| private final BlobStore blobStore; |
| private final RegionScopedBlobStoreContext blobStoreContext; |
| |
| /** |
| * To get a username and API key see http://jclouds.apache.org/guides/rackspace/ |
| * |
| * The first argument (args[0]) must be your username |
| * The second argument (args[1]) must be your API key |
| */ |
| public static void main(String[] args) throws IOException { |
| GenerateTempURL generateTempURL = new GenerateTempURL(args[0], args[1]); |
| |
| try { |
| generateTempURL.generatePutTempURL(); |
| generateTempURL.generateGetTempURL(); |
| generateTempURL.generateDeleteTempURL(); |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| } |
| finally { |
| generateTempURL.close(); |
| } |
| } |
| |
| public GenerateTempURL(String username, String apiKey) { |
| blobStoreContext = ContextBuilder.newBuilder(PROVIDER) |
| .credentials(username, apiKey) |
| .buildView(RegionScopedBlobStoreContext.class); |
| blobStore = blobStoreContext.blobStoreInRegion(REGION); |
| } |
| |
| private void generatePutTempURL() throws IOException { |
| System.out.format("Generate PUT Temp URL%n"); |
| |
| // Create the Payload |
| String data = "This object will be public for 10 minutes."; |
| ByteSource source = ByteSource.wrap(data.getBytes()); |
| Payload payload = Payloads.newByteSourcePayload(source); |
| |
| // Create the Blob |
| Blob blob = blobStore.blobBuilder(FILENAME).payload(payload).contentType("text/plain").build(); |
| HttpRequest request = blobStoreContext.getSigner().signPutBlob(CONTAINER, blob, TEN_MINUTES); |
| |
| System.out.format(" %s %s%n", request.getMethod(), request.getEndpoint()); |
| |
| // PUT the file using jclouds |
| HttpResponse response = blobStoreContext.utils().http().invoke(request); |
| int statusCode = response.getStatusCode(); |
| |
| if (statusCode >= 200 && statusCode < 299) { |
| System.out.format(" PUT Success (%s)%n", statusCode); |
| } |
| else { |
| throw new HttpResponseException(null, response); |
| } |
| } |
| |
| private void generateGetTempURL() throws IOException { |
| System.out.format("Generate GET Temp URL%n"); |
| |
| HttpRequest request = blobStoreContext.getSigner().signGetBlob(CONTAINER, FILENAME, TEN_MINUTES); |
| |
| System.out.format(" %s %s%n", request.getMethod(), request.getEndpoint()); |
| |
| // GET the file using jclouds |
| File file = File.createTempFile(FILENAME, ".tmp"); |
| Payload payload = blobStoreContext.utils().http().invoke(request).getPayload(); |
| |
| try { |
| Files.asByteSink(file).writeFrom(payload.openStream()); |
| |
| System.out.format(" GET Success (%s)%n", file.getAbsolutePath()); |
| } finally { |
| payload.release(); |
| file.delete(); |
| } |
| } |
| |
| private void generateDeleteTempURL() throws IOException { |
| System.out.format("Generate DELETE Temp URL%n"); |
| |
| HttpRequest request = blobStoreContext.getSigner().signRemoveBlob(CONTAINER, FILENAME); |
| |
| System.out.format(" %s %s%n", request.getMethod(), request.getEndpoint()); |
| |
| // DELETE the file using jclouds |
| HttpResponse response = blobStoreContext.utils().http().invoke(request); |
| int statusCode = response.getStatusCode(); |
| |
| if (statusCode >= 200 && statusCode < 299) { |
| System.out.format(" DELETE Success (%s)", statusCode); |
| } |
| else { |
| throw new HttpResponseException(null, response); |
| } |
| } |
| |
| /** |
| * Always close your service when you're done with it. |
| */ |
| public void close() throws IOException { |
| Closeables.close(blobStore.getContext(), true); |
| } |
| } |