Examples of org.apache.accumulo.core.data.Condition

org.apache.accumulo.core.data.Condition
Conditions that must be met on a particular column in a row. @since 1.6.0

      sum += value;
      data[index] = value;
    }


    ConditionalMutation toMutation() {
      Condition cond = new Condition("meta", "seq");
      if (seq >= 0)
        cond.setValue(seq + "");


      ConditionalMutation cm = new ConditionalMutation(row, cond);


      cm.put("meta", "seq", (seq + 1) + "");
      cm.put("meta", "sum", (sum) + "");

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    conn.tableOperations().create(tableName);


    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig());
    
    // mutation conditional on column tx:seq not existing
    ConditionalMutation cm0 = new ConditionalMutation("99006", new Condition("tx", "seq"));
    cm0.put("name", "last", "doe");
    cm0.put("name", "first", "john");
    cm0.put("tx", "seq", "1");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm0).getStatus());
    Assert.assertEquals(Status.REJECTED, cw.write(cm0).getStatus());


    // mutation conditional on column tx:seq being 1
    ConditionalMutation cm1 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("1"));
    cm1.put("name", "last", "Doe");
    cm1.put("tx", "seq", "2");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm1).getStatus());


    // test condition where value differs
    ConditionalMutation cm2 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("1"));
    cm2.put("name", "last", "DOE");
    cm2.put("tx", "seq", "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm2).getStatus());


    // test condition where column does not exists
    ConditionalMutation cm3 = new ConditionalMutation("99006", new Condition("txtypo", "seq").setValue("1"));
    cm3.put("name", "last", "deo");
    cm3.put("tx", "seq", "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm3).getStatus());


    // test two conditions, where one should fail
    ConditionalMutation cm4 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("2"), new Condition("name", "last").setValue("doe"));
    cm4.put("name", "last", "deo");
    cm4.put("tx", "seq", "3");
    Assert.assertEquals(Status.REJECTED, cw.write(cm4).getStatus());


    // test two conditions, where one should fail
    ConditionalMutation cm5 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("1"), new Condition("name", "last").setValue("Doe"));
    cm5.put("name", "last", "deo");
    cm5.put("tx", "seq", "3");
    Assert.assertEquals(Status.REJECTED, cw.write(cm5).getStatus());


    // ensure rejected mutations did not write
    Scanner scanner = conn.createScanner(tableName, Authorizations.EMPTY);
    scanner.fetchColumn(new Text("name"), new Text("last"));
    scanner.setRange(new Range("99006"));
    Assert.assertEquals("Doe", scanner.iterator().next().getValue().toString());


    // test w/ two conditions that are met
    ConditionalMutation cm6 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("2"), new Condition("name", "last").setValue("Doe"));
    cm6.put("name", "last", "DOE");
    cm6.put("tx", "seq", "3");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm6).getStatus());


    Assert.assertEquals("DOE", scanner.iterator().next().getValue().toString());


    // test a conditional mutation that deletes
    ConditionalMutation cm7 = new ConditionalMutation("99006", new Condition("tx", "seq").setValue("3"));
    cm7.putDelete("name", "last");
    cm7.putDelete("name", "first");
    cm7.putDelete("tx", "seq");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm7).getStatus());

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    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig().setAuthorizations(auths));


    ColumnVisibility cva = new ColumnVisibility("A");
    ColumnVisibility cvb = new ColumnVisibility("B");


    ConditionalMutation cm0 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cva));
    cm0.put("name", "last", cva, "doe");
    cm0.put("name", "first", cva, "john");
    cm0.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm0).getStatus());


    Scanner scanner = conn.createScanner(tableName, auths);
    scanner.setRange(new Range("99006"));
    // TODO verify all columns
    scanner.fetchColumn(new Text("tx"), new Text("seq"));
    Entry<Key,Value> entry = scanner.iterator().next();
    Assert.assertEquals("1", entry.getValue().toString());
    long ts = entry.getKey().getTimestamp();


    // test wrong colf
    ConditionalMutation cm1 = new ConditionalMutation("99006", new Condition("txA", "seq").setVisibility(cva).setValue("1"));
    cm1.put("name", "last", cva, "Doe");
    cm1.put("name", "first", cva, "John");
    cm1.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm1).getStatus());


    // test wrong colq
    ConditionalMutation cm2 = new ConditionalMutation("99006", new Condition("tx", "seqA").setVisibility(cva).setValue("1"));
    cm2.put("name", "last", cva, "Doe");
    cm2.put("name", "first", cva, "John");
    cm2.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm2).getStatus());


    // test wrong colv
    ConditionalMutation cm3 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb).setValue("1"));
    cm3.put("name", "last", cva, "Doe");
    cm3.put("name", "first", cva, "John");
    cm3.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm3).getStatus());


    // test wrong timestamp
    ConditionalMutation cm4 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cva).setTimestamp(ts + 1).setValue("1"));
    cm4.put("name", "last", cva, "Doe");
    cm4.put("name", "first", cva, "John");
    cm4.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm4).getStatus());


    // test wrong timestamp
    ConditionalMutation cm5 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cva).setTimestamp(ts - 1).setValue("1"));
    cm5.put("name", "last", cva, "Doe");
    cm5.put("name", "first", cva, "John");
    cm5.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.REJECTED, cw.write(cm5).getStatus());


    // ensure no updates were made
    entry = scanner.iterator().next();
    Assert.assertEquals("1", entry.getValue().toString());


    // set all columns correctly
    ConditionalMutation cm6 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cva).setTimestamp(ts).setValue("1"));
    cm6.put("name", "last", cva, "Doe");
    cm6.put("name", "first", cva, "John");
    cm6.put("tx", "seq", cva, "2");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm6).getStatus());

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    ColumnVisibility cva = new ColumnVisibility("A");
    ColumnVisibility cvb = new ColumnVisibility("B");
    ColumnVisibility cvc = new ColumnVisibility("C");


    // User has authorization, but didn't include it in the writer
    ConditionalMutation cm0 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb));
    cm0.put("name", "last", cva, "doe");
    cm0.put("name", "first", cva, "john");
    cm0.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm0).getStatus());


    ConditionalMutation cm1 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb).setValue("1"));
    cm1.put("name", "last", cva, "doe");
    cm1.put("name", "first", cva, "john");
    cm1.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm1).getStatus());


    // User does not have the authorization
    ConditionalMutation cm2 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvc));
    cm2.put("name", "last", cva, "doe");
    cm2.put("name", "first", cva, "john");
    cm2.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm2).getStatus());


    ConditionalMutation cm3 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvc).setValue("1"));
    cm3.put("name", "last", cva, "doe");
    cm3.put("name", "first", cva, "john");
    cm3.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm3).getStatus());


    // if any visibility is bad, good visibilities don't override
    ConditionalMutation cm4 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb), new Condition("tx", "seq").setVisibility(cva));


    cm4.put("name", "last", cva, "doe");
    cm4.put("name", "first", cva, "john");
    cm4.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm4).getStatus());


    ConditionalMutation cm5 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb).setValue("1"), new Condition("tx", "seq")
        .setVisibility(cva).setValue("1"));
    cm5.put("name", "last", cva, "doe");
    cm5.put("name", "first", cva, "john");
    cm5.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm5).getStatus());


    ConditionalMutation cm6 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb).setValue("1"),
        new Condition("tx", "seq").setVisibility(cva));
    cm6.put("name", "last", cva, "doe");
    cm6.put("name", "first", cva, "john");
    cm6.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm6).getStatus());


    ConditionalMutation cm7 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb), new Condition("tx", "seq").setVisibility(cva)
        .setValue("1"));
    cm7.put("name", "last", cva, "doe");
    cm7.put("name", "first", cva, "john");
    cm7.put("tx", "seq", cva, "1");
    Assert.assertEquals(Status.INVISIBLE_VISIBILITY, cw.write(cm7).getStatus());


    cw.close();


    // test passing auths that exceed users configured auths


    Authorizations exceedingAuths = new Authorizations("A", "B", "D");
    ConditionalWriter cw2 = conn.createConditionalWriter(tableName, new ConditionalWriterConfig().setAuthorizations(exceedingAuths));


    ConditionalMutation cm8 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvb), new Condition("tx", "seq").setVisibility(cva)
        .setValue("1"));
    cm8.put("name", "last", cva, "doe");
    cm8.put("name", "first", cva, "john");
    cm8.put("tx", "seq", cva, "1");

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    Scanner scanner = conn.createScanner(tableName + "_clone", new Authorizations());


    ConditionalWriter cw = conn.createConditionalWriter(tableName + "_clone", new ConditionalWriterConfig());


    ConditionalMutation cm0 = new ConditionalMutation("99006+", new Condition("tx", "seq"));
    cm0.put("tx", "seq", "1");


    Assert.assertEquals(Status.VIOLATED, cw.write(cm0).getStatus());
    Assert.assertFalse(scanner.iterator().hasNext());


    ConditionalMutation cm1 = new ConditionalMutation("99006", new Condition("tx", "seq"));
    cm1.put("tx", "seq", "1");


    Assert.assertEquals(Status.ACCEPTED, cw.write(cm1).getStatus());
    Assert.assertTrue(scanner.iterator().hasNext());

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    Assert.assertEquals("3", scanner.iterator().next().getValue().toString());


    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig());


    ConditionalMutation cm0 = new ConditionalMutation("ACCUMULO-1000", new Condition("count", "comments").setValue("3"));
    cm0.put("count", "comments", "1");
    Assert.assertEquals(Status.REJECTED, cw.write(cm0).getStatus());
    Assert.assertEquals("3", scanner.iterator().next().getValue().toString());


    ConditionalMutation cm1 = new ConditionalMutation("ACCUMULO-1000", new Condition("count", "comments").setIterators(iterConfig).setValue("3"));
    cm1.put("count", "comments", "1");
    Assert.assertEquals(Status.ACCEPTED, cw.write(cm1).getStatus());
    Assert.assertEquals("4", scanner.iterator().next().getValue().toString());


    ConditionalMutation cm2 = new ConditionalMutation("ACCUMULO-1000", new Condition("count", "comments").setValue("4"));
    cm2.put("count", "comments", "1");
    Assert.assertEquals(Status.REJECTED, cw.write(cm1).getStatus());
    Assert.assertEquals("4", scanner.iterator().next().getValue().toString());


    // run test with multiple iterators passed in same batch and condition with two iterators


    ConditionalMutation cm3 = new ConditionalMutation("ACCUMULO-1000", new Condition("count", "comments").setIterators(iterConfig).setValue("4"));
    cm3.put("count", "comments", "1");


    ConditionalMutation cm4 = new ConditionalMutation("ACCUMULO-1001", new Condition("count2", "comments").setIterators(iterConfig2).setValue("2"));
    cm4.put("count2", "comments", "1");


    ConditionalMutation cm5 = new ConditionalMutation("ACCUMULO-1002", new Condition("count2", "comments").setIterators(iterConfig2, iterConfig3).setValue("2"));
    cm5.put("count2", "comments", "1");


    Iterator<Result> results = cw.write(Arrays.asList(cm3, cm4, cm5).iterator());
    Map<String,Status> actual = new HashMap<String,Status>();

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    ColumnVisibility cvab = new ColumnVisibility("A|B");


    ArrayList<ConditionalMutation> mutations = new ArrayList<ConditionalMutation>();


    ConditionalMutation cm0 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvab));
    cm0.put("name", "last", cvab, "doe");
    cm0.put("name", "first", cvab, "john");
    cm0.put("tx", "seq", cvab, "1");
    mutations.add(cm0);


    ConditionalMutation cm1 = new ConditionalMutation("59056", new Condition("tx", "seq").setVisibility(cvab));
    cm1.put("name", "last", cvab, "doe");
    cm1.put("name", "first", cvab, "jane");
    cm1.put("tx", "seq", cvab, "1");
    mutations.add(cm1);


    ConditionalMutation cm2 = new ConditionalMutation("19059", new Condition("tx", "seq").setVisibility(cvab));
    cm2.put("name", "last", cvab, "doe");
    cm2.put("name", "first", cvab, "jack");
    cm2.put("tx", "seq", cvab, "1");
    mutations.add(cm2);


    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig().setAuthorizations(new Authorizations("A")));
    Iterator<Result> results = cw.write(mutations.iterator());
    int count = 0;
    while (results.hasNext()) {
      Result result = results.next();
      Assert.assertEquals(Status.ACCEPTED, result.getStatus());
      count++;
    }


    Assert.assertEquals(3, count);


    Scanner scanner = conn.createScanner(tableName, new Authorizations("A"));
    scanner.fetchColumn(new Text("tx"), new Text("seq"));


    for (String row : new String[] {"99006", "59056", "19059"}) {
      scanner.setRange(new Range(row));
      Assert.assertEquals("1", scanner.iterator().next().getValue().toString());
    }


    TreeSet<Text> splits = new TreeSet<Text>();
    splits.add(new Text("7"));
    splits.add(new Text("3"));
    conn.tableOperations().addSplits(tableName, splits);


    mutations.clear();


    ConditionalMutation cm3 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvab).setValue("1"));
    cm3.put("name", "last", cvab, "Doe");
    cm3.put("tx", "seq", cvab, "2");
    mutations.add(cm3);


    ConditionalMutation cm4 = new ConditionalMutation("59056", new Condition("tx", "seq").setVisibility(cvab));
    cm4.put("name", "last", cvab, "Doe");
    cm4.put("tx", "seq", cvab, "1");
    mutations.add(cm4);


    ConditionalMutation cm5 = new ConditionalMutation("19059", new Condition("tx", "seq").setVisibility(cvab).setValue("2"));
    cm5.put("name", "last", cvab, "Doe");
    cm5.put("tx", "seq", cvab, "3");
    mutations.add(cm5);


    results = cw.write(mutations.iterator());

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    for (int i = 0; i < num; i++) {
      rows.add(FastFormat.toZeroPaddedString(abs(r.nextLong()), 16, 16, e));
    }


    for (int i = 0; i < num; i++) {
      ConditionalMutation cm = new ConditionalMutation(rows.get(i), new Condition("meta", "seq"));


      cm.put("meta", "seq", "1");
      cm.put("meta", "tx", UUID.randomUUID().toString());


      cml.add(cm);
    }


    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig());


    Iterator<Result> results = cw.write(cml.iterator());


    int count = 0;


    // TODO check got each row back
    while (results.hasNext()) {
      Result result = results.next();
      Assert.assertEquals(Status.ACCEPTED, result.getStatus());
      count++;
    }


    Assert.assertEquals(num, count);


    ArrayList<ConditionalMutation> cml2 = new ArrayList<ConditionalMutation>(num);


    for (int i = 0; i < num; i++) {
      ConditionalMutation cm = new ConditionalMutation(rows.get(i), new Condition("meta", "seq").setValue("1"));


      cm.put("meta", "seq", "2");
      cm.put("meta", "tx", UUID.randomUUID().toString());


      cml2.add(cm);

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        break;
    }


    ArrayList<ConditionalMutation> mutations = new ArrayList<ConditionalMutation>();


    ConditionalMutation cm0 = new ConditionalMutation("99006", new Condition("tx", "seq").setVisibility(cvaob));
    cm0.put("name+", "last", cvaob, "doe");
    cm0.put("name", "first", cvaob, "john");
    cm0.put("tx", "seq", cvaob, "1");
    mutations.add(cm0);


    ConditionalMutation cm1 = new ConditionalMutation("59056", new Condition("tx", "seq").setVisibility(cvaab));
    cm1.put("name", "last", cvaab, "doe");
    cm1.put("name", "first", cvaab, "jane");
    cm1.put("tx", "seq", cvaab, "1");
    mutations.add(cm1);


    ConditionalMutation cm2 = new ConditionalMutation("19059", new Condition("tx", "seq").setVisibility(cvaob));
    cm2.put("name", "last", cvaob, "doe");
    cm2.put("name", "first", cvaob, "jack");
    cm2.put("tx", "seq", cvaob, "1");
    mutations.add(cm2);


    ConditionalMutation cm3 = new ConditionalMutation("90909", new Condition("tx", "seq").setVisibility(cvaob).setValue("1"));
    cm3.put("name", "last", cvaob, "doe");
    cm3.put("name", "first", cvaob, "john");
    cm3.put("tx", "seq", cvaob, "2");
    mutations.add(cm3);

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    conn.tableOperations().create(tableName);


    ConditionalWriter cw = conn.createConditionalWriter(tableName, new ConditionalWriterConfig());


    ConditionalMutation cm1 = new ConditionalMutation("r1", new Condition("tx", "seq"));
    cm1.put("tx", "seq", "1");
    cm1.put("data", "x", "a");


    Assert.assertEquals(Status.ACCEPTED, cw.write(cm1).getStatus());


    ConditionalMutation cm2 = new ConditionalMutation("r1", new Condition("tx", "seq").setValue("1"));
    cm2.put("tx", "seq", "2");
    cm2.put("data", "x", "b");


    ConditionalMutation cm3 = new ConditionalMutation("r1", new Condition("tx", "seq").setValue("1"));
    cm3.put("tx", "seq", "2");
    cm3.put("data", "x", "c");


    ConditionalMutation cm4 = new ConditionalMutation("r1", new Condition("tx", "seq").setValue("1"));
    cm4.put("tx", "seq", "2");
    cm4.put("data", "x", "d");


    Iterator<Result> results = cw.write(Arrays.asList(cm2, cm3, cm4).iterator());

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