Package org.apache.hadoop.hbase.coprocessor

Examples of org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment

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  /* ---- RegionObserver implementation ---- */

  @Override
  public void preOpen(ObserverContext<RegionCoprocessorEnvironment> e)
      throws IOException {
    RegionCoprocessorEnvironment env = e.getEnvironment();
    final HRegion region = env.getRegion();
    if (region == null) {
      LOG.error("NULL region from RegionCoprocessorEnvironment in preOpen()");
    } else {
      HRegionInfo regionInfo = region.getRegionInfo();
      if (regionInfo.getTable().isSystemTable()) {
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    }
  }

  @Override
  public void postOpen(ObserverContext<RegionCoprocessorEnvironment> c) {
    RegionCoprocessorEnvironment env = c.getEnvironment();
    final HRegion region = env.getRegion();
    if (region == null) {
      LOG.error("NULL region from RegionCoprocessorEnvironment in postOpen()");
      return;
    }
    if (AccessControlLists.isAclRegion(region)) {
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  @Override
  public void preGetClosestRowBefore(final ObserverContext<RegionCoprocessorEnvironment> c,
      final byte [] row, final byte [] family, final Result result)
      throws IOException {
    assert family != null;
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<byte[]>> families = makeFamilyMap(family, null);
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.GET_CLOSEST_ROW_BEFORE, user, env, families,
      Action.READ);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
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    // Don't wrap an AccessControlFilter
    if (filter != null && filter instanceof AccessControlFilter) {
      return;
    }
    User user = getActiveUser();
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<byte[]>> families = null;
    switch (opType) {
    case GET:
    case EXISTS:
      families = ((Get)query).getFamilyMap();
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    // NOTE: We don't need to check the permissions for any earlier Puts
    // because we treat the ACLs in each Put as timestamped like any other
    // HBase value. A new ACL in a new Put applies to that Put. It doesn't
    // change the ACL of any previous Put. This allows simple evolution of
    // security policy over time without requiring expensive updates.
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<Cell>> families = put.getFamilyCellMap();
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.PUT, user, env, families, Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
      authResult.setAllowed(checkCoveringPermission(OpType.PUT, env, put.getRow(), families,
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    // Require WRITE permissions on all cells covered by the delete. Unlike
    // for Puts we need to check all visible prior versions, because a major
    // compaction could remove them. If the user doesn't have permission to
    // overwrite any of the visible versions ('visible' defined as not covered
    // by a tombstone already) then we have to disallow this operation.
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<Cell>> families = delete.getFamilyCellMap();
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.DELETE, user, env, families, Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
      authResult.setAllowed(checkCoveringPermission(OpType.DELETE, env, delete.getRow(), families,
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      final byte [] row, final byte [] family, final byte [] qualifier,
      final CompareFilter.CompareOp compareOp,
      final ByteArrayComparable comparator, final Put put,
      final boolean result) throws IOException {
    // Require READ and WRITE permissions on the table, CF, and KV to update
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<byte[]>> families = makeFamilyMap(family, qualifier);
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.CHECK_AND_PUT, user, env, families,
      Action.READ, Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
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      throw new DoNotRetryIOException("ACL on checkAndDelete has no effect: " +
          delete.toString());
    }
    // Require READ and WRITE permissions on the table, CF, and the KV covered
    // by the delete
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<byte[]>> families = makeFamilyMap(family, qualifier);
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.CHECK_AND_DELETE, user, env, families,
      Action.READ, Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
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      final byte [] row, final byte [] family, final byte [] qualifier,
      final long amount, final boolean writeToWAL)
      throws IOException {
    // Require WRITE permission to the table, CF, and the KV to be replaced by the
    // incremented value
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<byte[]>> families = makeFamilyMap(family, qualifier);
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.INCREMENT_COLUMN_VALUE, user, env, families,
      Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
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  @Override
  public Result preAppend(ObserverContext<RegionCoprocessorEnvironment> c, Append append)
      throws IOException {
    // Require WRITE permission to the table, CF, and the KV to be appended
    RegionCoprocessorEnvironment env = c.getEnvironment();
    Map<byte[],? extends Collection<Cell>> families = append.getFamilyCellMap();
    User user = getActiveUser();
    AuthResult authResult = permissionGranted(OpType.APPEND, user, env, families, Action.WRITE);
    if (!authResult.isAllowed() && cellFeaturesEnabled && !compatibleEarlyTermination) {
      authResult.setAllowed(checkCoveringPermission(OpType.APPEND, env, append.getRow(),
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