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   * 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 com.aliyun.odps.tunnel.util;
  
  import java.lang.management.ManagementFactory;
  import java.util.Iterator;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.concurrent.atomic.AtomicLong;
  
  import com.aliyun.odps.Odps;
  import com.aliyun.odps.OdpsException;
  import com.aliyun.odps.Project;
  import com.aliyun.odps.VolumeFile;
  import com.aliyun.odps.VolumePartition;
  import com.aliyun.odps.commons.transport.OdpsTestUtils;
  import com.aliyun.odps.security.SecurityConfiguration;
  import com.aliyun.odps.security.SecurityManager;
  import com.aliyun.odps.tunnel.VolumeFSTunnel;
  import com.aliyun.odps.tunnel.VolumeTunnel;
  
  public class Utils {
  
    private static AtomicLong counter = new AtomicLong();
    private static Project project = null;
    private static Odps odps = OdpsTestUtils.newDefaultOdps();
    private static String processName = ManagementFactory.getRuntimeMXBean().getName();
    private static String processID = processName.substring(0, processName.indexOf('@'));
  
    public static Project getProject() throws OdpsException {
      if (project == null) {
        Odps odps = OdpsTestUtils.newDefaultOdps();
        project = odps.projects().get();
      }
      return project;
    }
  
    // support multi-sqls: sql1;sql2
    public static String exeSql(String sql) {
      String[] sqlArray = sql.split(";");
      String ret = null;
      for (int i = 0; i < sqlArray.length; ++i) {
        // System.out.println("sqlArray[" + i + "]:" + sqlArray[i]);
        if (null == sqlArray[i] || "" == sqlArray[i]) {
          return null;
        }
        ret = SqlExecutor.exec(getProjectName(), sqlArray[i] + ";");
      }
      return ret;
    }
  
    public static String getVersion() {
      return "tunnel_aliyunsdk_";
    }
  
    public static String getTestUser() {
      String user = OdpsTestUtils.getGrantUser();
      if (user.toLowerCase().indexOf("aliyun") > 0) {
        user = "ALIYUN$" + user;
      } else if (user.toLowerCase().indexOf("taobao") > 0) {
        user = "TAOBAO$" + user;
      }
      return user;
    }
  
    public static void setDefaultSecurity(String projectName) throws OdpsException {
      Project project = odps.projects().get(projectName);
      SecurityManager sm = project.getSecurityManager();
      SecurityConfiguration sc = sm.getSecurityConfiguration();
      sc.disableProjectProtection();
      sc.enableCheckPermissionUsingAcl();
      sc.enableCheckPermissionUsingPolicy();
      //sc.enableLabelSecurity();
      sc.enableObjectCreatorHasAccessPermission();
      sc.enableObjectCreatorHasGrantPermission();
      sm.setSecurityConfiguration(sc);
      sc.reload();
    }
  
    public static String exeSql(String sql, String project) {
      String[] sqlArray = sql.split(";");
      String ret = null;
      for (int i = 0; i < sqlArray.length; ++i) {
        // System.out.println("sqlArray[" + i + "]:" + sqlArray[i]);
        if (null == sqlArray[i] || "" == sqlArray[i]) {
          return null;
        }
        ret = SqlExecutor.exec(project, sqlArray[i] + ";");
      }
      return ret;
  
    }
  
    public static VolumeTunnel getTunnelInstance() {
      VolumeTunnel tunnel = new VolumeTunnel(odps);
      String endpoint = OdpsTestUtils.getProperty("default.tunnel.endpoint");
      if (endpoint != null && !endpoint.isEmpty()) {
        tunnel.setEndpoint(endpoint);
      }
      return tunnel;
    }
  
    public static VolumeFSTunnel getVolumeFSTunnel() {
      VolumeFSTunnel tunnelFS = new VolumeFSTunnel(odps);
      String endpoint = OdpsTestUtils.getProperty("default.tunnel.endpoint");
      if (endpoint != null && !endpoint.isEmpty()) {
        tunnelFS.setEndpoint(endpoint);
      }
      return tunnelFS;
    }
  
    public static VolumeTunnel getTunnelInstanceForSecurity(String project) {
      Odps grantOdps = OdpsTestUtils.newGrantOdps(project);
      VolumeTunnel tunnel = new VolumeTunnel(grantOdps);
      String endpoint = OdpsTestUtils.getProperty("default.tunnel.endpoint");
      if (endpoint != null && !endpoint.isEmpty()) {
        tunnel.setEndpoint(endpoint);
      }
      return tunnel;
    }
  
    public static String getRandomVolumeName() {
      return "volume_" + processID  + "_" + System.currentTimeMillis() + "_" + counter.addAndGet(1);
    }
  
    public static String getRandomPartitionName() {
      return "pt_" + System.currentTimeMillis() + "_" + counter.addAndGet(1);
    }
  
    public static String getRandomFileName() {
      return "file_" + System.currentTimeMillis() + "_" + counter.addAndGet(1);
    }
  
    public static String getProjectName() {
      return OdpsTestUtils.newDefaultOdps().getDefaultProject();
    }
  
    public static void createVolume(String volumeName, String projectName) throws Exception {
      Odps odps = OdpsTestUtils.newDefaultOdps();
      odps.setDefaultProject(projectName);
      odps.volumes().create(projectName, volumeName, "test volumes sdk");
    }
  
    public static void dropVolume(String volumeName, String projectName) throws Exception {
      Odps odps = OdpsTestUtils.newDefaultOdps();
      odps.setDefaultProject(projectName);
      odps.volumes().delete(projectName, volumeName);
    }
  
    public static String invokeAuth(String command, String projectName) throws OdpsException {
      if (command.indexOf(';') == -1) {
        command += ";";
      }
      odps.setDefaultProject(projectName);
      Project project = odps.projects().get();
      SecurityManager security = project.getSecurityManager();
      String result = security.runQuery(command, false);
      return result;
    }
  
    public static List<String> listVolumePartitions(String volumeName, String partitionName,
                                                    String projectName)
            throws Exception {
      Odps odps = OdpsTestUtils.newDefaultOdps();
      odps.setDefaultProject(projectName);
      List<String> result = new LinkedList<String>();
      VolumePartition partiton = odps.volumes().get(volumeName).getVolumePartition(partitionName);
      Iterator<VolumeFile> iter = partiton.getFileIterator();
      while (iter.hasNext()) {
        result.add(iter.next().getName());
      }
      return result;
    }
  }