StringUtils.java

/*-
 * #%L
 * TwinColGrid add-on
 * %%
 * Copyright (C) 2017 - 2025 Flowing Code
 * %%
 * 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.
 * #L%
 */
package com.flowingcode.vaadin.addons.twincolgrid;
/*
 * 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
 *
 *      https://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.
 */

import lombok.experimental.UtilityClass;

@UtilityClass
class StringUtils {

  public static boolean containsIgnoreCase(String str, String searchStr) {
    if (str == null || searchStr == null) {
      return false;
    }
    final int len = searchStr.length();
    final int max = str.length() - len;
    for (int i = 0; i <= max; i++) {
      if (CharSequenceUtils.regionMatches(str, true, i, searchStr, 0, len)) {
        return true;
      }
    }
    return false;
  }

}