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Example 1 with CQLLiteral

use of com.datastax.oss.dsbulk.mapping.CQLLiteral 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();
}
Also used : LinkedHashSet(java.util.LinkedHashSet) CQLLiteral(com.datastax.oss.dsbulk.mapping.CQLLiteral) TypedCQLLiteral(com.datastax.oss.dsbulk.mapping.TypedCQLLiteral) MAPPED_OR_INDEXED(com.datastax.oss.dsbulk.mapping.MappingPreference.MAPPED_OR_INDEXED) CqlIdentifier(com.datastax.oss.driver.api.core.CqlIdentifier) MAPPED_ONLY(com.datastax.oss.dsbulk.mapping.MappingPreference.MAPPED_ONLY) DefaultMapping(com.datastax.oss.dsbulk.mapping.DefaultMapping) GenericType(com.datastax.oss.driver.api.core.type.reflect.GenericType) TokenRangeReadStatementGenerator(com.datastax.oss.dsbulk.partitioner.TokenRangeReadStatementGenerator) ConfigUtils(com.datastax.oss.dsbulk.config.ConfigUtils) ALIASED_SELECTOR(com.datastax.oss.dsbulk.mapping.CQLRenderMode.ALIASED_SELECTOR) BatchType(com.datastax.oss.driver.api.core.cql.BatchType) Map(java.util.Map) VisibleForTesting(com.datastax.oss.driver.shaded.guava.common.annotations.VisibleForTesting) 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Example 2 with CQLLiteral

use of com.datastax.oss.dsbulk.mapping.CQLLiteral 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();
}
Also used : CQLLiteral(com.datastax.oss.dsbulk.mapping.CQLLiteral) TypedCQLLiteral(com.datastax.oss.dsbulk.mapping.TypedCQLLiteral) CQLWord(com.datastax.oss.dsbulk.mapping.CQLWord) CQLFragment(com.datastax.oss.dsbulk.mapping.CQLFragment) FunctionCall(com.datastax.oss.dsbulk.mapping.FunctionCall) IndexedMappingField(com.datastax.oss.dsbulk.mapping.IndexedMappingField) MappingField(com.datastax.oss.dsbulk.mapping.MappingField) MappedMappingField(com.datastax.oss.dsbulk.mapping.MappedMappingField)

Example 3 with CQLLiteral

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

the class SchemaSettings method inferInsertQuery.

private String inferInsertQuery(ImmutableMultimap<MappingField, CQLFragment> fieldsToVariables) {
    ImmutableMultimap.Builder<MappingField, CQLFragment> regularFieldsToVariablesBuilder = ImmutableMultimap.builder();
    CQLFragment writetime = null;
    CQLFragment ttl = null;
    for (Entry<MappingField, CQLFragment> entry : fieldsToVariables.entries()) {
        if (entry.getValue() instanceof FunctionCall) {
            FunctionCall functionCall = (FunctionCall) entry.getValue();
            if (functionCall.getFunctionName().equals(WRITETIME)) {
                assert writetime == null;
                if (entry.getKey() instanceof CQLLiteral) {
                    writetime = (CQLLiteral) entry.getKey();
                } else {
                    writetime = CQLWord.fromInternal(functionCall.render(INTERNAL));
                }
            } else if (functionCall.getFunctionName().equals(TTL)) {
                assert ttl == null;
                if (entry.getKey() instanceof CQLLiteral) {
                    ttl = (CQLLiteral) entry.getKey();
                } else {
                    ttl = CQLWord.fromInternal(functionCall.render(INTERNAL));
                }
            }
        } else {
            regularFieldsToVariablesBuilder.put(entry);
        }
    }
    ImmutableMultimap<MappingField, CQLFragment> regularFieldsToVariables = regularFieldsToVariablesBuilder.build();
    StringBuilder sb = new StringBuilder("INSERT INTO ");
    sb.append(keyspaceName.render(VARIABLE)).append('.').append(tableName.render(VARIABLE)).append(" (");
    appendColumnNames(regularFieldsToVariables, sb, VARIABLE);
    sb.append(") VALUES (");
    Set<CQLFragment> cols = maybeSortCols(regularFieldsToVariables);
    Iterator<CQLFragment> it = cols.iterator();
    while (it.hasNext()) {
        CQLFragment col = it.next();
        // for insert queries there can be only one field mapped to a given column
        MappingField field = fieldsToVariables.inverse().get(col).iterator().next();
        if (field instanceof CQLFragment) {
            sb.append(((CQLFragment) field).render(NAMED_ASSIGNMENT));
        } else {
            sb.append(col.render(NAMED_ASSIGNMENT));
        }
        if (it.hasNext()) {
            sb.append(", ");
        }
    }
    sb.append(')');
    appendWriteTimeAndTTL(sb, writetime, ttl);
    return sb.toString();
}
Also used : CQLLiteral(com.datastax.oss.dsbulk.mapping.CQLLiteral) TypedCQLLiteral(com.datastax.oss.dsbulk.mapping.TypedCQLLiteral) ImmutableMultimap(com.datastax.oss.driver.shaded.guava.common.collect.ImmutableMultimap) CQLFragment(com.datastax.oss.dsbulk.mapping.CQLFragment) FunctionCall(com.datastax.oss.dsbulk.mapping.FunctionCall) IndexedMappingField(com.datastax.oss.dsbulk.mapping.IndexedMappingField) MappingField(com.datastax.oss.dsbulk.mapping.MappingField) MappedMappingField(com.datastax.oss.dsbulk.mapping.MappedMappingField)

Example 4 with CQLLiteral

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

the class SchemaSettings method appendWriteTimeAndTTL.

private void appendWriteTimeAndTTL(StringBuilder sb, @Nullable CQLFragment writetime, @Nullable CQLFragment ttl) {
    boolean hasTtl = ttlSeconds != -1 || ttl != null;
    boolean hasTimestamp = timestampMicros != -1 || writetime != null;
    if (hasTtl || hasTimestamp) {
        if (isCounterTable()) {
            throw new IllegalArgumentException("Cannot set TTL or timestamp when updating a counter table.");
        }
        sb.append(" USING ");
        if (hasTtl) {
            sb.append("TTL ");
            if (ttlSeconds != -1) {
                sb.append(ttlSeconds);
            } else {
                assert ttl != null;
                sb.append(ttl.render(NAMED_ASSIGNMENT));
            }
            if (hasTimestamp) {
                sb.append(" AND ");
            }
        }
        if (hasTimestamp) {
            sb.append("TIMESTAMP ");
            if (timestampMicros != -1) {
                sb.append(timestampMicros);
            } else {
                assert writetime != null;
                if (writetime instanceof TypedCQLLiteral) {
                    DataType dataType = ((TypedCQLLiteral) writetime).getDataType();
                    if (dataType == DataTypes.TIMESTAMP) {
                        ConvertingCodec<String, Instant> codec = codecFactory.createConvertingCodec(DataTypes.TIMESTAMP, GenericType.STRING, true);
                        String literal = ((CQLLiteral) writetime).getLiteral();
                        Instant i = codec.externalToInternal(codec.parse(literal));
                        long micros = instantToNumber(i, MICROSECONDS, EPOCH);
                        writetime = new TypedCQLLiteral(Long.toString(micros), DataTypes.BIGINT);
                    }
                }
                sb.append(writetime.render(NAMED_ASSIGNMENT));
            }
        }
    }
}
Also used : CQLLiteral(com.datastax.oss.dsbulk.mapping.CQLLiteral) TypedCQLLiteral(com.datastax.oss.dsbulk.mapping.TypedCQLLiteral) Instant(java.time.Instant) TypedCQLLiteral(com.datastax.oss.dsbulk.mapping.TypedCQLLiteral) DataType(com.datastax.oss.driver.api.core.type.DataType)

Aggregations

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