org.trustedanalytics.servicebroker.yarn.utils.YarnTestUtils.java Source code

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Here is the source code for org.trustedanalytics.servicebroker.yarn.utils.YarnTestUtils.java

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/**
 * Copyright (c) 2015 Intel Corporation
 *
 * Licensed 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.trustedanalytics.servicebroker.yarn.utils;

import com.google.common.collect.ImmutableList;

import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.RetryOneTime;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.data.ACL;
import org.apache.zookeeper.data.Id;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.crypto.codec.Base64;

import java.security.MessageDigest;

public class YarnTestUtils {

    private static final Logger LOGGER = LoggerFactory.getLogger(ZookeeperCredentials.class);

    private YarnTestUtils() {
    }

    private static CuratorFramework getNewTempClient(String connectionString) {
        CuratorFramework tempClient = CuratorFrameworkFactory.builder().connectString(connectionString)
                .retryPolicy(new RetryOneTime(100)).build();
        tempClient.start();
        return tempClient;
    }

    private static CuratorFramework getNewTempClient(ZookeeperCredentials credentials) {

        CuratorFramework tempClient = CuratorFrameworkFactory.builder()
                .connectString(credentials.getConnectionString()).retryPolicy(new RetryOneTime(100))
                .authorization("digest",
                        String.format("%s:%s", credentials.getUsername(), credentials.getPassword()).getBytes())
                .build();
        tempClient.start();
        return tempClient;
    }

    public static void createDir(ZookeeperCredentials credentials, String path) throws Exception {

        LOGGER.info("Attempt to create znode: " + path);

        CuratorFramework tempClient = getNewTempClient(credentials.getConnectionString());

        MessageDigest md = MessageDigest.getInstance("SHA-1");
        byte[] authDigest = md
                .digest(String.format("%s:%s", credentials.getUsername(), credentials.getPassword()).getBytes());
        String authEncoded = new String(Base64.encode(authDigest));
        ImmutableList<ACL> acl = ImmutableList.of(new ACL(ZooDefs.Perms.ALL,
                new Id("digest", String.format("%s:%s", credentials.getUsername(), authEncoded))));

        tempClient.create().creatingParentsIfNeeded()
                //.withACL(acl)
                .forPath(path);

        tempClient.close();
    }

    public static class ZookeeperCredentials {
        private String connectionString;
        private String username;
        private String password;

        public ZookeeperCredentials(String connectionString, String username, String password) {
            this.connectionString = connectionString;
            this.username = username;
            this.password = password;
        }

        public String getConnectionString() {
            return connectionString;
        }

        public String getUsername() {
            return username;
        }

        public String getPassword() {
            return password;
        }
    }
}