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Java Admin.tableExists方法代碼示例

本文整理匯總了Java中org.apache.hadoop.hbase.client.Admin.tableExists方法的典型用法代碼示例。如果您正苦於以下問題：Java Admin.tableExists方法的具體用法？Java Admin.tableExists怎麽用？Java Admin.tableExists使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.hbase.client.Admin的用法示例。


在下文中一共展示了Admin.tableExists方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: createTable

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
/**
 * 創建表
 *
 * @param tableName 表名稱
 * @param columns   列族名稱
 */
public void createTable(String tableName, String... columns) {
    HBaseConfiguration hBaseConfiguration = new HBaseConfiguration();
    Admin admin = hBaseConfiguration.admin();
    try {
        TableName tn = TableName.valueOf(tableName);
        if (admin.tableExists(tn)) {
            log.info("表名【" + tableName + "】已存在");
            return;
        }
        HTableDescriptor hTableDescriptor = new HTableDescriptor(tn);
        for (String column : columns) {
            HColumnDescriptor hColumnDescriptor = new HColumnDescriptor(column);
            hTableDescriptor.addFamily(hColumnDescriptor);
        }
        admin.createTable(hTableDescriptor);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        hBaseConfiguration.close();
    }
}
開發者ID:mumuhadoop，項目名稱:mumu-hbase，代碼行數:28，代碼來源:HBaseTableOperation.java

示例2: deleteTable

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
/**
 * 刪除表
 *
 * @param tableName
 */
public void deleteTable(String tableName) {
    HBaseConfiguration hBaseConfiguration = new HBaseConfiguration();
    Admin admin = hBaseConfiguration.admin();
    TableName tn = TableName.valueOf(tableName);
    try {
        if (admin.tableExists(tn)) {
            admin.disableTable(tn);//先禁用表 才能刪除
            admin.deleteTable(tn);
        } else {
            log.info("表名【" + tableName + "】不存在");
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        hBaseConfiguration.close();
    }
}
開發者ID:mumuhadoop，項目名稱:mumu-hbase，代碼行數:23，代碼來源:HBaseTableOperation.java

示例3: setUp

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
@Before
public void setUp() throws Exception {
  LOG.info(String.format("Initializing cluster with %d region servers.",
    REGION_SERVER_COUNT));
  util.initializeCluster(REGION_SERVER_COUNT);
  LOG.info("Cluster initialized");

  Admin admin = util.getHBaseAdmin();
  if (admin.tableExists(TABLE_NAME)) {
    LOG.info(String.format("Deleting existing table %s.", TABLE_NAME));
    if (admin.isTableEnabled(TABLE_NAME)) admin.disableTable(TABLE_NAME);
    admin.deleteTable(TABLE_NAME);
    LOG.info(String.format("Existing table %s deleted.", TABLE_NAME));
  }
  LOG.info("Cluster ready");
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:17，代碼來源:IntegrationTestManyRegions.java

示例4: generateHBaseDatasetNullStr

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetNullStr(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor("f"));
  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);

  Put p = new Put("a1".getBytes());
  p.addColumn("f".getBytes(), "c1".getBytes(), "".getBytes());
  p.addColumn("f".getBytes(), "c2".getBytes(), "".getBytes());
  p.addColumn("f".getBytes(), "c3".getBytes(), "5".getBytes());
  p.addColumn("f".getBytes(), "c4".getBytes(), "".getBytes());
  table.mutate(p);

  table.close();
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:26，代碼來源:TestTableGenerator.java

示例5: setUpBeforeClass

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
@BeforeClass
public static void setUpBeforeClass() throws Exception {
  conf = TEST_UTIL.getConfiguration();
  TEST_UTIL.startMiniCluster();
  REST_TEST_UTIL.startServletContainer(conf);
  context = JAXBContext.newInstance(
          CellModel.class,
          CellSetModel.class,
          RowModel.class);
  marshaller = context.createMarshaller();
  unmarshaller = context.createUnmarshaller();
  client = new Client(new Cluster().add("localhost", REST_TEST_UTIL.getServletPort()));
  Admin admin = TEST_UTIL.getHBaseAdmin();
  if (admin.tableExists(TABLE)) {
    return;
  }
  HTableDescriptor htd = new HTableDescriptor(TABLE);
  htd.addFamily(new HColumnDescriptor(CFA));
  htd.addFamily(new HColumnDescriptor(CFB));
  admin.createTable(htd);
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:22，代碼來源:TestMultiRowResource.java

示例6: setUp

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
@Before
public void setUp() throws Exception {
  Admin admin = util.getHBaseAdmin();
  if (admin.tableExists(tableName)) {
    if (admin.isTableEnabled(tableName)) {
      admin.disableTable(tableName);
    }
    admin.deleteTable(tableName);
  }
  util.createTable(tableName, new byte[][] {dummy, test});
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:12，代碼來源:TestRegionObserverBypass.java

示例7: beforeMethod

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
@Before
public void beforeMethod() throws Exception {
  Admin admin = TEST_UTIL.getHBaseAdmin();
  if (admin.tableExists(TableName.valueOf(TABLE))) {
    TEST_UTIL.deleteTable(Bytes.toBytes(TABLE));
  }
  HTableDescriptor htd = new HTableDescriptor(TableName.valueOf(TABLE));
  htd.addFamily(new HColumnDescriptor(CFA));
  htd.addFamily(new HColumnDescriptor(CFB));
  admin.createTable(htd);
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:12，代碼來源:RowResourceBase.java

示例8: generateHBaseDatasetDoubleOB

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetDoubleOB(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);

  for (double i = 0.5; i <= 100.00; i += 0.75) {
    byte[] bytes = new byte[9];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 9);
    OrderedBytes.encodeFloat64(br, i, Order.ASCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %03f", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例9: generateHBaseDatasetFloatOB

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetFloatOB(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);

  for (float i = (float)0.5; i <= 100.00; i += 0.75) {
    byte[] bytes = new byte[5];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 5);
    OrderedBytes.encodeFloat32(br, i,Order.ASCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %03f", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例10: generateHBaseDatasetBigIntOB

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetBigIntOB(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);
  long startTime = (long)1438034423 * 1000;
  for (long i = startTime; i <= startTime + 100; i ++) {
    byte[] bytes = new byte[9];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 9);
    OrderedBytes.encodeInt64(br, i, Order.ASCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %d", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例11: generateHBaseDatasetDoubleOBDesc

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetDoubleOBDesc(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);

  for (double i = 0.5; i <= 100.00; i += 0.75) {
    byte[] bytes = new byte[9];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 9);
    OrderedBytes.encodeFloat64(br, i, Order.DESCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %03f", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例12: afterMethod

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
@After
public void afterMethod() throws Exception {
  Admin admin = TEST_UTIL.getHBaseAdmin();
  if (admin.tableExists(TableName.valueOf(TABLE))) {
    TEST_UTIL.deleteTable(Bytes.toBytes(TABLE));
  }
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:8，代碼來源:RowResourceBase.java

示例13: generateHBaseDatasetBigIntOBDesc

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetBigIntOBDesc(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);
  long startTime = (long)1438034423 * 1000;
  for (long i = startTime; i <= startTime + 100; i ++) {
    byte[] bytes = new byte[9];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 9);
    OrderedBytes.encodeInt64(br, i, Order.DESCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %d", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例14: generateHBaseDatasetIntOBDesc

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
public static void generateHBaseDatasetIntOBDesc(Connection conn, Admin admin, TableName tableName, int numberRegions) throws Exception {
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }

  HTableDescriptor desc = new HTableDescriptor(tableName);
  desc.addFamily(new HColumnDescriptor(FAMILY_F));

  if (numberRegions > 1) {
    admin.createTable(desc, Arrays.copyOfRange(SPLIT_KEYS, 0, numberRegions-1));
  } else {
    admin.createTable(desc);
  }

  BufferedMutator table = conn.getBufferedMutator(tableName);

  for (int i = -49; i <= 100; i ++) {
    byte[] bytes = new byte[5];
    PositionedByteRange br = new SimplePositionedMutableByteRange(bytes, 0, 5);
    OrderedBytes.encodeInt32(br, i, Order.DESCENDING);
    Put p = new Put(bytes);
    p.addColumn(FAMILY_F, COLUMN_C, String.format("value %d", i).getBytes());
    table.mutate(p);
  }

  table.close();

  admin.flush(tableName);
}
開發者ID:dremio，項目名稱:dremio-oss，代碼行數:31，代碼來源:TestTableGenerator.java

示例15: checkTable

import org.apache.hadoop.hbase.client.Admin; //導入方法依賴的package包/類
static boolean checkTable(Admin admin, TestOptions opts) throws IOException {
  TableName tableName = TableName.valueOf(opts.tableName);
  boolean needsDelete = false, exists = admin.tableExists(tableName);
  boolean isReadCmd = opts.cmdName.toLowerCase().contains("read")
    || opts.cmdName.toLowerCase().contains("scan");
  if (!exists && isReadCmd) {
    throw new IllegalStateException(
      "Must specify an existing table for read commands. Run a write command first.");
  }
  HTableDescriptor desc =
    exists ? admin.getTableDescriptor(TableName.valueOf(opts.tableName)) : null;
  byte[][] splits = getSplits(opts);

  // recreate the table when user has requested presplit or when existing
  // {RegionSplitPolicy,replica count} does not match requested.
  if ((exists && opts.presplitRegions != DEFAULT_OPTS.presplitRegions)
    || (!isReadCmd && desc != null && desc.getRegionSplitPolicyClassName() != opts.splitPolicy)
    || (!isReadCmd && desc != null && desc.getRegionReplication() != opts.replicas)) {
    needsDelete = true;
    // wait, why did it delete my table?!?
    LOG.debug(Objects.toStringHelper("needsDelete")
      .add("needsDelete", needsDelete)
      .add("isReadCmd", isReadCmd)
      .add("exists", exists)
      .add("desc", desc)
      .add("presplit", opts.presplitRegions)
      .add("splitPolicy", opts.splitPolicy)
      .add("replicas", opts.replicas));
  }

  // remove an existing table
  if (needsDelete) {
    if (admin.isTableEnabled(tableName)) {
      admin.disableTable(tableName);
    }
    admin.deleteTable(tableName);
  }

  // table creation is necessary
  if (!exists || needsDelete) {
    desc = getTableDescriptor(opts);
    if (splits != null) {
      if (LOG.isDebugEnabled()) {
        for (int i = 0; i < splits.length; i++) {
          LOG.debug(" split " + i + ": " + Bytes.toStringBinary(splits[i]));
        }
      }
    }
    admin.createTable(desc, splits);
    LOG.info("Table " + desc + " created");
  }
  return admin.tableExists(tableName);
}
開發者ID:fengchen8086，項目名稱:ditb，代碼行數:54，代碼來源:PerformanceEvaluation.java


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