/*
* 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.deltaspike.data.impl.util;
import java.text.MessageFormat;
import org.apache.deltaspike.core.util.StringUtils;
public final class QueryUtils
{
private static final String KEYWORD_SPLITTER = "({0})(?=[A-Z])";
private QueryUtils()
{
}
public static String[] splitByKeyword(String query, String keyword)
{
return query.split(MessageFormat.format(KEYWORD_SPLITTER, keyword));
}
public static String uncapitalize(String value)
{
if (StringUtils.isEmpty(value))
{
return null;
}
if (value.length() == 1)
{
return value.toLowerCase();
}
return value.substring(0, 1).toLowerCase() + value.substring(1);
}
public static boolean isString(Object value)
{
return value != null && value instanceof String;
}
public static String nullSafeValue(String value)
{
return nullSafeValue(value, null);
}
public static String nullSafeValue(String value, String fallback)
{
return value != null ? value : (fallback != null ? fallback : "");
}
}