/*
* Copyright (C) 2012-2015 DataStax Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.datastax.driver.core;
import com.datastax.driver.core.exceptions.InvalidTypeException;
import com.datastax.driver.core.querybuilder.BuiltStatement;
import com.datastax.driver.core.utils.CassandraVersion;
import com.datastax.driver.core.utils.MoreObjects;
import com.google.common.reflect.TypeParameter;
import com.google.common.reflect.TypeToken;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import static com.datastax.driver.core.querybuilder.QueryBuilder.*;
import static org.assertj.core.api.Assertions.assertThat;
public class TypeCodecEncapsulationIntegrationTest extends CCMTestsSupport {
// @formatter:off
private static final TypeToken<NumberBox<Integer>> NUMBERBOX_OF_INTEGER_TOKEN = new TypeToken<NumberBox<Integer>>() {};
private static final TypeToken<NumberBox<Long>> NUMBERBOX_OF_LONG_TOKEN = new TypeToken<NumberBox<Long>>() {};
private static final TypeToken<NumberBox<Float>> NUMBERBOX_OF_FLOAT_TOKEN = new TypeToken<NumberBox<Float>>() {};
private static final TypeToken<NumberBox<Double>> NUMBERBOX_OF_DOUBLE_TOKEN = new TypeToken<NumberBox<Double>>() {};
private static final TypeToken<NumberBox<BigInteger>> NUMBERBOX_OF_BIGINTEGER_TOKEN = new TypeToken<NumberBox<BigInteger>>() {};
private static final TypeToken<NumberBox<BigDecimal>> NUMBERBOX_OF_BIGDECIMAL_TOKEN = new TypeToken<NumberBox<BigDecimal>>() {};
// @formatter:on
private final String insertQuery = "INSERT INTO \"myTable\" (c_int, c_bigint, c_float, c_double, c_varint, c_decimal) VALUES (?, ?, ?, ?, ?, ?)";
private final String selectQuery = "SELECT c_int, c_bigint, c_float, c_double, c_varint, c_decimal FROM \"myTable\" WHERE c_int = ? and c_bigint = ?";
private BuiltStatement insertStmt;
private BuiltStatement selectStmt;
private int n_int = 42;
private long n_bigint = 4242;
private float n_float = 42.42f;
private double n_double = 4242.42d;
private BigInteger n_varint = new BigInteger("424242");
private BigDecimal n_decimal = new BigDecimal("424242.42");
@Override
public void onTestContextInitialized() {
execute(
"CREATE TABLE \"myTable\" ("
+ "c_int int, "
+ "c_bigint bigint, "
+ "c_float float, "
+ "c_double double, "
+ "c_varint varint, "
+ "c_decimal decimal, "
+ "PRIMARY KEY (c_int, c_bigint)"
+ ")"
);
}
@Override
public Cluster.Builder createClusterBuilder() {
return Cluster.builder().withCodecRegistry(
new CodecRegistry()
.register(
new NumberBoxCodec<Integer>(TypeCodec.cint()),
new NumberBoxCodec<Long>(TypeCodec.bigint()),
new NumberBoxCodec<Float>(TypeCodec.cfloat()),
new NumberBoxCodec<Double>(TypeCodec.cdouble()),
new NumberBoxCodec<BigInteger>(TypeCodec.varint()),
new NumberBoxCodec<BigDecimal>(TypeCodec.decimal())
)
);
}
@BeforeMethod(groups = "short")
public void createBuiltStatements() throws Exception {
insertStmt = insertInto("\"myTable\"")
.value("c_int", bindMarker())
.value("c_bigint", bindMarker())
.value("c_float", bindMarker())
.value("c_double", bindMarker())
.value("c_varint", bindMarker())
.value("c_decimal", bindMarker());
selectStmt = select("c_int", "c_bigint", "c_float", "c_double", "c_varint", "c_decimal")
.from("\"myTable\"")
.where(eq("c_int", bindMarker()))
.and(eq("c_bigint", bindMarker()));
}
@Test(groups = "short")
@CassandraVersion("2.0.0")
public void should_use_custom_codecs_with_simple_statements() {
session().execute(insertQuery,
n_int,
new NumberBox<Long>(n_bigint),
new NumberBox<Float>(n_float),
new NumberBox<Double>(n_double),
new NumberBox<BigInteger>(n_varint),
new NumberBox<BigDecimal>(n_decimal));
ResultSet rows = session().execute(selectQuery, n_int, new NumberBox<Long>(n_bigint));
Row row = rows.one();
assertRow(row);
}
@Test(groups = "short")
public void should_use_custom_codecs_with_prepared_statements_1() {
session().execute(session().prepare(insertQuery).bind(
n_int,
new NumberBox<Long>(n_bigint),
new NumberBox<Float>(n_float),
new NumberBox<Double>(n_double),
new NumberBox<BigInteger>(n_varint),
new NumberBox<BigDecimal>(n_decimal)));
PreparedStatement ps = session().prepare(selectQuery);
ResultSet rows = session().execute(ps.bind(n_int, new NumberBox<Long>(n_bigint)));
Row row = rows.one();
assertRow(row);
}
@Test(groups = "short")
public void should_use_custom_codecs_with_prepared_statements_2() {
session().execute(session().prepare(insertQuery).bind()
.set(0, new NumberBox<Integer>(n_int), NUMBERBOX_OF_INTEGER_TOKEN)
.set(1, new NumberBox<Long>(n_bigint), NUMBERBOX_OF_LONG_TOKEN)
.set(2, new NumberBox<Float>(n_float), NUMBERBOX_OF_FLOAT_TOKEN)
.set(3, new NumberBox<Double>(n_double), NUMBERBOX_OF_DOUBLE_TOKEN)
.set(4, new NumberBox<BigInteger>(n_varint), NUMBERBOX_OF_BIGINTEGER_TOKEN)
.set(5, new NumberBox<BigDecimal>(n_decimal), NUMBERBOX_OF_BIGDECIMAL_TOKEN)
);
PreparedStatement ps = session().prepare(selectQuery);
ResultSet rows = session().execute(ps.bind()
.set(0, new NumberBox<Integer>(n_int), NUMBERBOX_OF_INTEGER_TOKEN)
.set(1, new NumberBox<Long>(n_bigint), NUMBERBOX_OF_LONG_TOKEN)
);
Row row = rows.one();
assertRow(row);
}
@Test(groups = "short")
public void should_use_custom_codecs_with_built_statements_1() {
session().execute(session().prepare(insertStmt).bind(
n_int,
new NumberBox<Long>(n_bigint),
new NumberBox<Float>(n_float),
new NumberBox<Double>(n_double),
new NumberBox<BigInteger>(n_varint),
new NumberBox<BigDecimal>(n_decimal)));
PreparedStatement ps = session().prepare(selectStmt);
ResultSet rows = session().execute(ps.bind(n_int, new NumberBox<Long>(n_bigint)));
Row row = rows.one();
assertRow(row);
}
@Test(groups = "short")
public void should_use_custom_codecs_with_built_statements_2() {
session().execute(session().prepare(insertStmt).bind()
.set(0, new NumberBox<Integer>(n_int), NUMBERBOX_OF_INTEGER_TOKEN)
.set(1, new NumberBox<Long>(n_bigint), NUMBERBOX_OF_LONG_TOKEN)
.set(2, new NumberBox<Float>(n_float), NUMBERBOX_OF_FLOAT_TOKEN)
.set(3, new NumberBox<Double>(n_double), NUMBERBOX_OF_DOUBLE_TOKEN)
.set(4, new NumberBox<BigInteger>(n_varint), NUMBERBOX_OF_BIGINTEGER_TOKEN)
.set(5, new NumberBox<BigDecimal>(n_decimal), NUMBERBOX_OF_BIGDECIMAL_TOKEN));
PreparedStatement ps = session().prepare(selectStmt);
ResultSet rows = session().execute(ps.bind()
.set(0, new NumberBox<Integer>(n_int), NUMBERBOX_OF_INTEGER_TOKEN)
.set(1, new NumberBox<Long>(n_bigint), NUMBERBOX_OF_LONG_TOKEN));
Row row = rows.one();
assertRow(row);
}
private void assertRow(Row row) {
// using getInt, etc: the default codecs are used
// and values are deserialized the traditional way
assertThat(row.getInt(0)).isEqualTo(n_int);
assertThat(row.getLong(1)).isEqualTo(n_bigint);
assertThat(row.getFloat(2)).isEqualTo(n_float);
assertThat(row.getDouble(3)).isEqualTo(n_double);
assertThat(row.getVarint(4)).isEqualTo(n_varint);
assertThat(row.getDecimal(5)).isEqualTo(n_decimal);
// with getObject, the first matching codec is the default one
assertThat(row.getObject(0)).isEqualTo(n_int);
assertThat(row.getObject(1)).isEqualTo(n_bigint);
assertThat(row.getObject(2)).isEqualTo(n_float);
assertThat(row.getObject(3)).isEqualTo(n_double);
assertThat(row.getObject(4)).isEqualTo(n_varint);
assertThat(row.getObject(5)).isEqualTo(n_decimal);
// with get + type
// we go back to the default codecs
assertThat(row.get(0, Integer.class)).isEqualTo(n_int);
assertThat(row.get(1, Long.class)).isEqualTo(n_bigint);
assertThat(row.get(2, Float.class)).isEqualTo(n_float);
assertThat(row.get(3, Double.class)).isEqualTo(n_double);
assertThat(row.get(4, BigInteger.class)).isEqualTo(n_varint);
assertThat(row.get(5, BigDecimal.class)).isEqualTo(n_decimal);
// with get + type, but enforcing NumberBox types
// we get the NumberBox codecs instead
assertThat(row.get(0, NUMBERBOX_OF_INTEGER_TOKEN)).isEqualTo(new NumberBox<Integer>(n_int));
assertThat(row.get(1, NUMBERBOX_OF_LONG_TOKEN)).isEqualTo(new NumberBox<Long>(n_bigint));
assertThat(row.get(2, NUMBERBOX_OF_FLOAT_TOKEN)).isEqualTo(new NumberBox<Float>(n_float));
assertThat(row.get(3, NUMBERBOX_OF_DOUBLE_TOKEN)).isEqualTo(new NumberBox<Double>(n_double));
assertThat(row.get(4, NUMBERBOX_OF_BIGINTEGER_TOKEN)).isEqualTo(new NumberBox<BigInteger>(n_varint));
assertThat(row.get(5, NUMBERBOX_OF_BIGDECIMAL_TOKEN)).isEqualTo(new NumberBox<BigDecimal>(n_decimal));
}
private class NumberBoxCodec<T extends Number> extends TypeCodec<NumberBox<T>> {
private final TypeCodec<T> numberCodec;
protected NumberBoxCodec(TypeCodec<T> numberCodec) {
// @formatter:off
super(numberCodec.getCqlType(),
new TypeToken<NumberBox<T>>() {}.where(new TypeParameter<T>() {}, numberCodec.getJavaType()));
// @formatter:on
this.numberCodec = numberCodec;
}
public boolean accepts(Object value) {
return value instanceof NumberBox && numberCodec.accepts(((NumberBox) value).getNumber());
}
@Override
public ByteBuffer serialize(NumberBox<T> value, ProtocolVersion protocolVersion) throws InvalidTypeException {
return numberCodec.serialize(value.getNumber(), protocolVersion);
}
@Override
public NumberBox<T> deserialize(ByteBuffer bytes, ProtocolVersion protocolVersion) throws InvalidTypeException {
return new NumberBox<T>(numberCodec.deserialize(bytes, protocolVersion));
}
@Override
public NumberBox<T> parse(String value) throws InvalidTypeException {
return new NumberBox<T>(numberCodec.parse(value));
}
@Override
public String format(NumberBox<T> value) throws InvalidTypeException {
return numberCodec.format(value.getNumber());
}
}
private class NumberBox<T extends Number> {
private final T number;
private NumberBox(T number) {
this.number = number;
}
public T getNumber() {
return number;
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
NumberBox numberBox = (NumberBox) o;
return MoreObjects.equal(number, numberBox.number);
}
@Override
public int hashCode() {
return MoreObjects.hashCode(number);
}
}
}