/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate licenses
* this file to you 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.operation.scalar.regex;
import io.crate.action.sql.SQLActionException;
import io.crate.metadata.Functions;
import io.crate.operation.Input;
import io.crate.operation.scalar.ScalarFunctionModule;
import io.crate.planner.symbol.Function;
import io.crate.planner.symbol.Literal;
import io.crate.planner.symbol.Symbol;
import io.crate.types.ArrayType;
import io.crate.types.DataTypes;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.inject.ModulesBuilder;
import org.junit.Rule;
import org.junit.rules.ExpectedException;
import org.junit.Before;
import org.junit.Test;
import java.util.Arrays;
import java.util.List;
import static io.crate.testing.TestingHelpers.*;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
public class MatchesFunctionTest {
private Functions functions;
@Rule
public ExpectedException expectedException = ExpectedException.none();
@Before
public void setUp() {
functions = new ModulesBuilder()
.add(new ScalarFunctionModule()).createInjector().getInstance(Functions.class);
}
@Test
public void testCompile() throws Exception {
final Literal<BytesRef> pattern = Literal.newLiteral(".*(ba).*");
List<Symbol> arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
pattern
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
regexpImpl.compile(arguments);
assertThat(regexpImpl.regexMatcher(), instanceOf(RegexMatcher.class));
assertEquals(true, regexpImpl.regexMatcher().match(new BytesRef("foobarbequebaz bar")));
assertThat(regexpImpl.regexMatcher().groups(), arrayContaining(new BytesRef("ba")));
arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
pattern,
Literal.newLiteral("usn")
);
regexpImpl.compile(arguments);
assertThat(regexpImpl.regexMatcher(), instanceOf(RegexMatcher.class));
assertEquals(true, regexpImpl.regexMatcher().match(new BytesRef("foobarbequebaz bar")));
assertThat(regexpImpl.regexMatcher().groups(), arrayContaining(new BytesRef("ba")));
}
@Test
public void testEvaluateWithCompile() throws Exception {
final Literal<BytesRef> pattern = Literal.newLiteral(".*(ba).*");
List<Symbol> arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
pattern
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
regexpImpl.compile(arguments);
Input[] args = new Input[2];
args[0] = new Input<Object>() {
@Override
public Object value() {
return new BytesRef("foobarbequebaz bar");
}
};
args[1] = new Input<Object>() {
@Override
public Object value() {
return pattern.value();
}
};
BytesRef[] result = regexpImpl.evaluate(args);
assertThat(result, arrayContaining(new BytesRef( "ba")));
}
@Test
public void testEvaluate() throws Exception {
List<Symbol> arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
createReference("pattern", DataTypes.STRING)
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
regexpImpl.compile(arguments);
Input[] args = new Input[2];
args[0] = new Input<Object>() {
@Override
public Object value() {
return new BytesRef("foobarbequebaz bar");
}
};
args[1] = new Input<Object>() {
@Override
public Object value() {
return new BytesRef(".*(ba).*");
}
};
BytesRef[] result = regexpImpl.evaluate(args);
assertThat(result, arrayContaining(new BytesRef("ba")));
}
@Test
public void testEvaluateWithFlags() throws Exception {
final Literal<BytesRef> flags = Literal.newLiteral("usn");
List<Symbol> arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
createReference("pattern", DataTypes.STRING)
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
regexpImpl.compile(arguments);
Input[] args = new Input[3];
args[0] = new Input<Object>() {
@Override
public Object value() {
return new BytesRef("foobarbequebaz bar");
}
};
args[1] = new Input<Object>() {
@Override
public Object value() {
return new BytesRef(".*(ba).*");
}
};
args[2] = new Input<Object>() {
@Override
public Object value() {
return flags.value();
}
};
BytesRef[] result = regexpImpl.evaluate(args);
assertThat(result, arrayContaining(new BytesRef("ba")));
}
@Test
public void testNormalizeSymbol() throws Exception {
List<Symbol> arguments = Arrays.<Symbol>asList(
Literal.newLiteral("foobarbequebaz bar"),
Literal.newLiteral(".*(ba).*")
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
Symbol result = regexpImpl.normalizeSymbol(function);
BytesRef[] expected = new BytesRef[]{ new BytesRef("ba") };
assertLiteralSymbol(result, expected, new ArrayType(DataTypes.STRING));
arguments = Arrays.<Symbol>asList(
createReference("text", DataTypes.STRING),
Literal.newLiteral(".*(ba).*")
);
function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
regexpImpl = (MatchesFunction) functions.get(function.info().ident());
result = regexpImpl.normalizeSymbol(function);
assertThat(result, instanceOf(Function.class));
assertThat((Function)result, is(function));
}
@Test
public void testNormalizeSymbolWithFlags() throws Exception {
List<Symbol> arguments = Arrays.<Symbol>asList(
Literal.newLiteral("foobarbequebaz bar"),
Literal.newLiteral(".*(ba).*"),
Literal.newLiteral("us n")
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
MatchesFunction regexpImpl = (MatchesFunction) functions.get(function.info().ident());
Symbol result = regexpImpl.normalizeSymbol(function);
BytesRef[] expected = new BytesRef[]{ new BytesRef("ba") };
assertLiteralSymbol(result, expected, new ArrayType(DataTypes.STRING));
}
@Test
public void testNormalizeSymbolWithInvalidFlags() throws Exception {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("flags must be of type string");
List<Symbol> arguments = Arrays.<Symbol>asList(
Literal.newLiteral("foobar"),
Literal.newLiteral("foo"),
Literal.newLiteral(1)
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
functions.get(function.info().ident());
}
@Test
public void testNormalizeSymbolWithInvalidNumberOfArguments() throws Exception {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("[regexp_matches] Function implementation not found for argument types [string]");
List<Symbol> arguments = Arrays.<Symbol>asList(
Literal.newLiteral("foobar")
);
Function function = createFunction(MatchesFunction.NAME, DataTypes.STRING, arguments);
functions.get(function.info().ident());
}
}