org.mybatis.dynamic.sql.util.StringUtilities Maven / Gradle / Ivy
/**
* Copyright 2016-2018 the original author or authors.
*
* 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 org.mybatis.dynamic.sql.util;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.stream.Stream;
public interface StringUtilities {
static String spaceAfter(Optional in) {
return in.map(s -> s + " ") //$NON-NLS-1$
.orElse(""); //$NON-NLS-1$
}
static String spaceAfter(String in) {
return in + " "; //$NON-NLS-1$
}
static String spaceBefore(Optional in) {
return in.map(s -> " " + s) //$NON-NLS-1$
.orElse(""); //$NON-NLS-1$
}
static String spaceBefore(String in) {
return " " + in; //$NON-NLS-1$
}
static String safelyUpperCase(String s) {
return s == null ? null : s.toUpperCase();
}
static UnaryOperator> upperCaseAfter(UnaryOperator> valueModifier) {
UnaryOperator> ua = s -> s.map(StringUtilities::safelyUpperCase);
return t -> ua.apply(valueModifier.apply(t));
}
}