/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.blobstore;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.util.Map.Entry;
import org.jclouds.blobstore.util.BlobStoreUtils;
import org.jclouds.domain.Credentials;
import org.jclouds.http.HttpUtils;
import com.google.common.io.ByteStreams;
import com.google.common.io.Closeables;
/**
*
* Usage is: java GetPath blobstore://identity:key@service/container/path destinationPath
*
* @author Adrian Cole
*/
public class GetPath {
public static String INVALID_SYNTAX = "Invalid parameters. Syntax is: blobstore://identity:key@service/container/path destinationPath";
public static void main(String... args) throws IOException {
if (args.length < 2)
throw new IllegalArgumentException(INVALID_SYNTAX);
URI uri;
try {
uri = HttpUtils.createUri(args[0]);
checkArgument(uri.getScheme().equals("blobstore"), "wrong scheme");
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(String.format("%s%n%s", e.getMessage(), INVALID_SYNTAX));
}
checkArgument(args[1] != null, String.format("destination must be specified%n%s",
INVALID_SYNTAX));
File destinationDir = new File(args[1]);
destinationDir.mkdirs();
String provider = uri.getHost();
Credentials creds = Credentials.parse(uri);
BlobStoreContext context = new BlobStoreContextFactory().createContext(provider,
creds.identity, creds.credential);
String path = uri.getPath();
if (path.startsWith("/"))
path = path.substring(1);
String container = BlobStoreUtils.parseContainerFromPath(path);
String directory = BlobStoreUtils.parsePrefixFromPath(path);
copyDirectoryToDestination(context, container, directory, destinationDir);
}
private static void copyDirectoryToDestination(BlobStoreContext context, String container,
String directory, File destinationDir) throws FileNotFoundException, IOException {
InputStream input = null;
try {
checkState(context.getBlobStore().containerExists(container), String.format(
"source container %s does not exist", directory, container));
checkState(context.getBlobStore().directoryExists(container, directory), String.format(
"source directory %s does not exist in container %s", directory, container));
String path = container + "/" + directory;
InputStreamMap map = context.createInputStreamMap(path);
System.out.printf("fetching %d entries from %s %s%n", map.size(), context
.getProviderSpecificContext().getIdentity(), path);
for (Entry<String, InputStream> entry : map.entrySet()) {
System.out.printf("getting file: %s/%s%n", path, entry.getKey());
input = entry.getValue();
File file = new File(destinationDir, entry.getKey());
OutputStream out = new FileOutputStream(file);
ByteStreams.copy(input, out);
out.flush();
out.close();
}
} finally {
// Close connection
Closeables.closeQuietly(input);
}
}
}