Examples of org.apache.accumulo.core.security.ColumnVisibility

Package org.apache.accumulo.core.security

Examples of org.apache.accumulo.core.security.ColumnVisibility

org.apache.accumulo.core.security.ColumnVisibility
Validate the column visibility is a valid expression and set the visibility for a Mutation. See {@link ColumnVisibility#ColumnVisibility(byte[])} for thedefinition of an expression.
The expression is a sequence of characters from the set [A-Za-z0-9_-.] along with the binary operators "&" and "|" indicating that both operands are necessary, or the either is necessary. The following are valid expressions for visibility:
```
 A A|B (A|B)&(C|D) orange|(red&yellow) 
```
The following are not valid expressions for visibility:
```
 A|B&C A=B A|B| A&|B () ) dog|!cat 
```
In addition to the base set of visibilities, any character can be used in the expression if it is quoted. If the quoted term contains '"' or '\', then escape the character with '\'. The {@link #quote(String)} method can be used to properly quote and escape terms automatically. The following is an example of a quoted term:
```
 "A#C"&B 
```

  
  private static List<ColumnVisibility> visibilities;
  
  private static void initVisibilities(Opts opts) throws Exception {
    if (opts.visFile == null) {
      visibilities = Collections.singletonList(new ColumnVisibility());
      return;
    }
    
    visibilities = new ArrayList<ColumnVisibility>();
    
    FileSystem fs = FileSystem.get(new Configuration());
    BufferedReader in = new BufferedReader(new InputStreamReader(fs.open(new Path(opts.visFile)), Constants.UTF8));
    
    String line;
    
    while ((line = in.readLine()) != null) {
      visibilities.add(new ColumnVisibility(line));
    }
    
    in.close();
  }

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    long lastFlushTime = System.currentTimeMillis();
    
    out: while (true) {
      // generate first set of nodes
      ColumnVisibility cv = getVisibility(r);


      for (int index = 0; index < flushInterval; index++) {
        long rowLong = genLong(opts.min, opts.max, r);
        prevRows[index] = rowLong;
        firstRows[index] = rowLong;

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    int maxColF = 32767;
    int maxColQ = 32767;
    long count = 0;
    long totalBytes = 0;
    
    ColumnVisibility cv = new ColumnVisibility();


    // start timer
    startTimer();
    
    // write specified number of entries

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    // append column qualifier
    appendText(sb, key.getColumnQualifier(buffer)).append(" ");
    
    // append visibility expression
    sb.append(new ColumnVisibility(key.getColumnVisibility(buffer)));
    
    // append timestamp
    if (showTimestamps)
      sb.append(" ").append(key.getTimestamp());

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      Iterator<Entry<Key,Value>> iter = super.iterator();
      while (iter.hasNext()) {
        Entry<Key,Value> next = iter.next();
        Key k = next.getKey();
        Mutation m = new Mutation(k.getRow());
        m.putDelete(k.getColumnFamily(), k.getColumnQualifier(), new ColumnVisibility(k.getColumnVisibility()), k.getTimestamp());
        bw.addMutation(m);
      }
    } finally {
      if (bw != null)
        bw.close();

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    ColumnQualifierFilter colFilter = new ColumnQualifierFilter(cfsi, new HashSet<Column>(options.fetchedColumns));


    byte[] defaultSecurityLabel;


    ColumnVisibility cv = new ColumnVisibility(acuTableConf.get(Property.TABLE_DEFAULT_SCANTIME_VISIBILITY));
    defaultSecurityLabel = cv.getExpression();


    VisibilityFilter visFilter = new VisibilityFilter(colFilter, authorizations, defaultSecurityLabel);


    return iterEnv.getTopLevelIterator(IteratorUtil.loadIterators(IteratorScope.scan, visFilter, extent, acuTableConf, options.serverSideIteratorList,
        options.serverSideIteratorOptions, iterEnv, false));

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  public static void insertList(BatchWriter bw, List<Entry<Key,Value>> list) throws Exception {
    for (Entry<Key,Value> e : list) {
      Key k = e.getKey();
      Mutation m = new Mutation(k.getRow());
      m.put(k.getColumnFamily(), k.getColumnQualifier(), new ColumnVisibility(k.getColumnVisibility()), k.getTimestamp(), e.getValue());
      bw.addMutation(m);
    }
  }

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    private int printMutation(Text table, Mutation m) {
      if (log.isTraceEnabled()) {
        log.trace(String.format("Table %s row key: %s", table, hexDump(m.getRow())));
        for (ColumnUpdate cu : m.getUpdates()) {
          log.trace(String.format("Table %s column: %s:%s", table, hexDump(cu.getColumnFamily()), hexDump(cu.getColumnQualifier())));
          log.trace(String.format("Table %s security: %s", table, new ColumnVisibility(cu.getColumnVisibility()).toString()));
          log.trace(String.format("Table %s value: %s", table, hexDump(cu.getValue())));
        }
      }
      return m.getUpdates().size();
    }

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    String instance = args[0];
    String zooKeepers = args[1];
    String user = args[2];
    String pass = args[3];
    String dataTable = args[4];
    ColumnVisibility colvis = new ColumnVisibility(args[5]);
    int chunkSize = Integer.parseInt(args[6]);


    Connector conn = new ZooKeeperInstance(instance, zooKeepers).getConnector(user, pass.getBytes());
    if (!conn.tableOperations().exists(dataTable)) {
      conn.tableOperations().create(dataTable);

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  public void test4() {
    Value dv = new Value();
    TreeMap<Key,Value> tm = new TreeMap<Key,Value>();
    ArrayList<Filter> f = new ArrayList<Filter>();
    
    ColumnVisibility le1 = new ColumnVisibility("L1");
    ColumnVisibility le2 = new ColumnVisibility("L0&OFFICIAL");
    ColumnVisibility le3 = new ColumnVisibility("L1&L2");
    ColumnVisibility le4 = new ColumnVisibility("L1&L2&G1");
    ColumnVisibility[] lea = {le1, le2, le3, le4};
    Authorizations auths = new Authorizations("L1", "L2", "L0", "OFFICIAL");
    VisibilityFilter a = new VisibilityFilter(auths, le2.getExpression());
    f.add(a);

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