/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.
*/
package org.apache.drill.common.expression;
import java.util.Arrays;
import java.util.List;
import org.apache.drill.common.expression.visitors.ExpressionValidationError;
import org.apache.drill.common.types.TypeProtos.MajorType;
import com.google.common.base.Joiner;
import com.google.common.collect.Lists;
import com.google.common.collect.Range;
public class ErrorCollectorImpl implements ErrorCollector {
List<ExpressionValidationError> errors;
public ErrorCollectorImpl() {
errors = Lists.newArrayList();
}
private String addExpr(ExpressionPosition expr, String message) {
return String.format("Error in expression at index %d. Error: %s. Full expression: %s.", expr.getCharIndex(), message, expr.getExpression());
}
@Override
public void addGeneralError(ExpressionPosition expr, String s) {
errors.add(new ExpressionValidationError(addExpr(expr, s)));
}
@Override
public void addUnexpectedArgumentType(ExpressionPosition expr, String name, MajorType actual, MajorType[] expected, int argumentIndex) {
errors.add(
new ExpressionValidationError(
addExpr(expr, String.format(
"Unexpected argument type. Index :%d Name: %s, Type: %s, Expected type(s): %s",
argumentIndex, name, actual, Arrays.toString(expected)
))
)
);
}
@Override
public void addUnexpectedArgumentCount(ExpressionPosition expr, int actual, Range<Integer> expected) {
errors.add(new ExpressionValidationError(
addExpr(expr, String.format("Unexpected argument count. Actual argument count: %d, Expected range: %s", actual, expected))
));
}
@Override
public void addUnexpectedArgumentCount(ExpressionPosition expr, int actual, int expected) {
errors.add(new ExpressionValidationError(
addExpr(expr, String.format("Unexpected argument count. Actual argument count: %d, Expected count: %d", actual, expected))
));
}
@Override
public void addNonNumericType(ExpressionPosition expr, MajorType actual) {
errors.add(new ExpressionValidationError(
addExpr(expr, String.format("Unexpected numeric type. Actual type: %s", actual))
));
}
@Override
public void addUnexpectedType(ExpressionPosition expr, int index, MajorType actual) {
errors.add(new ExpressionValidationError(
addExpr(expr, String.format("Unexpected argument type. Actual type: %s, Index: %d", actual, index))
));
}
@Override
public void addExpectedConstantValue(ExpressionPosition expr, int actual, String s) {
errors.add(new ExpressionValidationError(
addExpr(expr, String.format("Unexpected constant value. Name: %s, Actual: %s", s, actual))
));
}
@Override
public boolean hasErrors() {
return !errors.isEmpty();
}
@Override
public int getErrorCount() {
return errors.size();
}
@Override
public String toErrorString() {
return "\n" + Joiner.on("\n").join(errors);
}
@Override
public String toString() {
return toErrorString();
}
}