Examples with FunctionCall com.datastax.oss.dsbulk.mapping.FunctionCall used on opensource projects

Example 1 with FunctionCall

use of com.datastax.oss.dsbulk.mapping.FunctionCall in project dsbulk by datastax.

the class QueryInspectorTest method should_detect_ttl_select.

@Test
void should_detect_ttl_select() {
    QueryInspector inspector = new QueryInspector("SELECT TTL(col1) as t1, ttl(\"My Col 2\") FROM ks.table1");
    FunctionCall ttl1 = new FunctionCall(null, TTL, COL_1);
    FunctionCall ttl2 = new FunctionCall(null, TTL, MY_COL_2);
    assertThat(inspector.getResultSetVariables()).hasSize(2).containsKeys(ttl1, ttl2).containsValues(T_1, ttl2);
}

Example 2 with FunctionCall

use of com.datastax.oss.dsbulk.mapping.FunctionCall in project dsbulk by datastax.

the class SchemaSettings method inferBatchInsertQuery.

private String inferBatchInsertQuery(ImmutableMultimap<MappingField, CQLFragment> fieldsToVariables) {
    List<CQLWord> pks = primaryKeyColumns();
    Set<CQLFragment> allSpecificVariables = new LinkedHashSet<>();
    Map<CQLWord, WriteTimeAndTTL> specificWriteTimesAndTTLs = new LinkedHashMap<>();
    boolean hasGlobalWritetime = false;
    boolean hasGlobalTTL = false;
    for (CQLFragment variable : fieldsToVariables.values()) {
        if (variable instanceof FunctionCall) {
            FunctionCall functionCall = (FunctionCall) variable;
            if (functionCall.getFunctionName().equals(WRITETIME)) {
                for (CQLFragment arg : functionCall.getArgs()) {
                    if (arg.equals(STAR)) {
                        if (preserveTimestamp) {
                            throw new IllegalStateException("Invalid mapping: writetime(*) is not allowed when schema.preserveTimestamp is true.");
                        }
                        hasGlobalWritetime = true;
                    } else {
                        CQLWord col = (CQLWord) arg;
                        if (pks.contains(col)) {
                            throw new IllegalStateException("Invalid mapping: writetime() function arg must be either '*' or a non-primary key column name.");
                        }
                        if (fieldsToVariables.containsValue(col)) {
                            allSpecificVariables.add(col);
                            allSpecificVariables.add(functionCall);
                            specificWriteTimesAndTTLs.compute(col, (k, v) -> {
                                if (v == null) {
                                    v = new WriteTimeAndTTL();
                                    MappingField colField = fieldsToVariables.inverse().get(col).iterator().next();
                                    v.value = colField instanceof CQLFragment ? (CQLFragment) colField : col;
                                }
                                MappingField writetimeField = fieldsToVariables.inverse().get(functionCall).iterator().next();
                                v.writetime = writetimeField instanceof CQLLiteral ? (CQLLiteral) writetimeField : CQLWord.fromInternal(functionCall.render(INTERNAL));
                                return v;
                            });
                        } else {
                            throw new IllegalStateException(String.format("Invalid mapping: target column %s must be present if %s is also present.", col.render(VARIABLE), functionCall.render(INTERNAL)));
                        }
                    }
                }
            } else if (functionCall.getFunctionName().equals(TTL)) {
                for (CQLFragment arg : functionCall.getArgs()) {
                    if (arg.equals(STAR)) {
                        if (preserveTtl) {
                            throw new IllegalStateException("Invalid mapping: ttl(*) is not allowed when schema.preserveTtl is true.");
                        }
                        hasGlobalTTL = true;
                    } else {
                        CQLWord col = (CQLWord) arg;
                        if (pks.contains(col)) {
                            throw new IllegalStateException("Invalid mapping: ttl() function arg must be either '*' or a non-primary key column name.");
                        }
                        if (fieldsToVariables.containsValue(col)) {
                            allSpecificVariables.add(col);
                            allSpecificVariables.add(functionCall);
                            specificWriteTimesAndTTLs.compute((CQLWord) arg, (k, v) -> {
                                if (v == null) {
                                    v = new WriteTimeAndTTL();
                                    MappingField colField = fieldsToVariables.inverse().get(col).iterator().next();
                                    v.value = colField instanceof CQLFragment ? (CQLFragment) colField : col;
                                }
                                MappingField ttlField = fieldsToVariables.inverse().get(functionCall).iterator().next();
                                v.ttl = ttlField instanceof CQLLiteral ? (CQLLiteral) ttlField : CQLWord.fromInternal(functionCall.render(INTERNAL));
                                return v;
                            });
                        } else {
                            throw new IllegalStateException(String.format("Invalid mapping: target column %s must be present if %s is also present.", col.render(VARIABLE), functionCall.render(INTERNAL)));
                        }
                    }
                }
            }
        }
    }
    ImmutableMultimap.Builder<MappingField, CQLFragment> defaultFieldsToVariablesBuilder = ImmutableMultimap.builder();
    for (Entry<MappingField, CQLFragment> entry : fieldsToVariables.entries()) {
        CQLFragment variable = entry.getValue();
        if (!allSpecificVariables.contains(variable)) {
            defaultFieldsToVariablesBuilder.put(entry);
        }
    }
    ImmutableMultimap<MappingField, CQLFragment> defaultFieldsToVariables = defaultFieldsToVariablesBuilder.build();
    boolean hasRegularColumnsWithoutSpecificWritetimeAndTTL = defaultFieldsToVariables.values().stream().filter(CQLWord.class::isInstance).map(CQLWord.class::cast).anyMatch(variable -> !pks.contains(variable));
    if (!hasRegularColumnsWithoutSpecificWritetimeAndTTL) {
        if (hasGlobalWritetime) {
            throw new IllegalStateException("Invalid mapping: writetime(*) function has no target column.");
        }
        if (hasGlobalTTL) {
            throw new IllegalStateException("Invalid mapping: ttl(*) function has no target column.");
        }
    }
    StringBuilder sb = new StringBuilder();
    if (!hasRegularColumnsWithoutSpecificWritetimeAndTTL && specificWriteTimesAndTTLs.size() == 1) {
        // edge case: there is only one regular column in the table,
        // and it has specific writetime or tll: no need for a BATCH as there is only one child
        // statement.
        Entry<CQLWord, WriteTimeAndTTL> entry = specificWriteTimesAndTTLs.entrySet().iterator().next();
        appendBatchChildQuery(sb, entry.getKey(), entry.getValue().value, entry.getValue().writetime, entry.getValue().ttl, pks);
    } else {
        sb.append("BEGIN UNLOGGED BATCH ");
        // generate a first INSERT INTO child query similar to the ones generated for simple INSERTs.
        if (hasRegularColumnsWithoutSpecificWritetimeAndTTL) {
            sb.append(inferInsertQuery(defaultFieldsToVariables)).append("; ");
        }
        // generate a specific INSERT INTO query for that variable only + its TTL and/or writetime.
        for (Entry<CQLWord, WriteTimeAndTTL> entry : specificWriteTimesAndTTLs.entrySet()) {
            appendBatchChildQuery(sb, entry.getKey(), entry.getValue().value, entry.getValue().writetime, entry.getValue().ttl, pks);
            sb.append("; ");
        }
        sb.append("APPLY BATCH");
    }
    return sb.toString();
}

Example 3 with FunctionCall

use of com.datastax.oss.dsbulk.mapping.FunctionCall in project dsbulk by datastax.

the class SchemaSettings method inferUpdateCounterQuery.

private String inferUpdateCounterQuery(ImmutableMultimap<MappingField, CQLFragment> fieldsToVariables) {
    StringBuilder sb = new StringBuilder("UPDATE ");
    sb.append(keyspaceName.render(VARIABLE)).append('.').append(tableName.render(VARIABLE));
    // Note: TTL and timestamp are not allowed in counter queries;
    // a test is made inside the following method for fixed TTL and timestamps;
    // function-style TTL and timestamps will be tested below and forbidden as well
    appendWriteTimeAndTTL(sb, null, null);
    sb.append(" SET ");
    Set<CQLFragment> cols = maybeSortCols(fieldsToVariables);
    Iterator<CQLFragment> colsIterator = cols.iterator();
    boolean isFirst = true;
    List<CQLWord> pks = primaryKeyColumns();
    while (colsIterator.hasNext()) {
        CQLFragment col = colsIterator.next();
        if (col instanceof CQLWord && pks.contains(col)) {
            continue;
        }
        // forbid writetime and TTL right-hand function calls when updating a counter table
        if (col instanceof FunctionCall) {
            throw new IllegalArgumentException("Invalid mapping: function calls are not allowed when updating a counter table.");
        }
        // for update queries there can be only one field mapped to a given column
        MappingField field = fieldsToVariables.inverse().get(col).iterator().next();
        if (field instanceof FunctionCall) {
            throw new IllegalArgumentException("Invalid mapping: function calls are not allowed when updating a counter table.");
        } else if (field instanceof CQLLiteral) {
            throw new IllegalArgumentException("Invalid mapping: constant expressions are not allowed when updating a counter table.");
        }
        if (!isFirst) {
            sb.append(", ");
        }
        isFirst = false;
        sb.append(col.render(VARIABLE)).append(" = ").append(col.render(VARIABLE)).append(" + ").append(col.render(NAMED_ASSIGNMENT));
    }
    sb.append(" WHERE ");
    Iterator<CQLWord> pksIterator = pks.iterator();
    while (pksIterator.hasNext()) {
        CQLFragment col = pksIterator.next();
        sb.append(col.render(VARIABLE)).append(" = ").append(col.render(NAMED_ASSIGNMENT));
        if (pksIterator.hasNext()) {
            sb.append(" AND ");
        }
    }
    return sb.toString();
}

Example 4 with FunctionCall

use of com.datastax.oss.dsbulk.mapping.FunctionCall in project dsbulk by datastax.

the class QueryInspector method visitSelector.

@Override
@Nullable
public CQLFragment visitSelector(SelectorContext ctx) {
    CQLFragment unaliased = visitUnaliasedSelector(ctx.unaliasedSelector());
    if (unaliased != null) {
        boolean hasAlias = ctx.noncolIdent() != null;
        CQLFragment alias = hasAlias ? visitNoncolIdent(ctx.noncolIdent()) : unaliased;
        resultSetVariablesBuilder.put(unaliased, alias);
        if (unaliased instanceof FunctionCall) {
            FunctionCall function = (FunctionCall) unaliased;
            if (function.getFunctionName().equals(WRITETIME)) {
                // store the alias since it's the alias that will be returned in the result set
                writeTimeVariablesBuilder.add(alias);
            }
        }
    } else {
        hasUnsupportedSelectors = true;
    }
    return unaliased;
}

Example 5 with FunctionCall

use of com.datastax.oss.dsbulk.mapping.FunctionCall in project dsbulk by datastax.

the class QueryInspector method visitFunction.

@Override
@NonNull
public FunctionCall visitFunction(FunctionContext ctx) {
    CQLWord keyspaceName = null;
    if (ctx.functionName().keyspaceName() != null) {
        keyspaceName = visitKeyspaceName(ctx.functionName().keyspaceName());
    }
    CQLWord functionName = visitAllowedFunctionName(ctx.functionName().allowedFunctionName());
    List<CQLFragment> args = new ArrayList<>();
    if (ctx.functionArgs() != null) {
        for (TermContext arg : ctx.functionArgs().term()) {
            CQLFragment term = visitTerm(arg);
            if (term == QUESTION_MARK) {
                throw new IllegalArgumentException(String.format("Invalid query: positional variables are not allowed as function parameters: %s.", query));
            }
            args.add(term);
        }
    }
    return new FunctionCall(keyspaceName, functionName, args);
}