Tboy
5 years ago
committed by
qiaozhanwei
20 changed files with 170 additions and 31 deletions
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.dolphinscheduler.common.utils; |
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public class EnumUtils { |
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public static <E extends Enum<E>> E getEnum(final Class<E> enumClass, final String enumName) { |
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if (enumName == null) { |
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return null; |
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} |
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try { |
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return Enum.valueOf(enumClass, enumName); |
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} catch (final IllegalArgumentException ex) { |
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return null; |
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} |
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} |
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} |
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@ -0,0 +1,125 @@
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.dolphinscheduler.common.utils; |
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import java.nio.charset.StandardCharsets; |
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import java.util.regex.Pattern; |
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public class StringUtils { |
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public static final int INDEX_NOT_FOUND = -1; |
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public static final String EMPTY = ""; |
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public static boolean isEmpty(final CharSequence cs) { |
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return cs == null || cs.length() == 0; |
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} |
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public static boolean isNotEmpty(final CharSequence cs) { |
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return !isEmpty(cs); |
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} |
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public static boolean isBlank(CharSequence cs){ |
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int strLen; |
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if (cs == null || (strLen = cs.length()) == 0) { |
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return true; |
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} |
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for (int i = 0; i < strLen; i++) { |
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if (Character.isWhitespace(cs.charAt(i)) == false) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public static boolean isNotBlank(CharSequence str){ |
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return !isBlank(str); |
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} |
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public static String substringBefore(final String str, final String separator) { |
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if (isBlank(str) || separator == null) { |
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return str; |
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} |
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if (separator.isEmpty()) { |
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return EMPTY; |
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} |
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final int pos = str.indexOf(separator); |
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if (pos == INDEX_NOT_FOUND) { |
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return str; |
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} |
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return str.substring(0, pos); |
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} |
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public static String substringAfter(final String str, final String separator) { |
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if (isBlank(str)) { |
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return str; |
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} |
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if (separator == null) { |
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return EMPTY; |
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} |
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final int pos = str.indexOf(separator); |
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if (pos == INDEX_NOT_FOUND) { |
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return EMPTY; |
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} |
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return str.substring(pos + separator.length()); |
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} |
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public static String substringAfterLast(final String str, final String separator) { |
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if (isEmpty(str)) { |
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return str; |
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} |
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if (isEmpty(separator)) { |
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return EMPTY; |
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} |
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final int pos = str.lastIndexOf(separator); |
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if (pos == INDEX_NOT_FOUND || pos == str.length() - separator.length()) { |
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return EMPTY; |
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} |
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return str.substring(pos + separator.length()); |
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} |
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public static String getUtf8String(byte[] bytes){ |
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return new String(bytes, StandardCharsets.UTF_8); |
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} |
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public static byte[] getUtf8Bytes(String str){ |
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return str.getBytes(StandardCharsets.UTF_8); |
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} |
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public static boolean hasChinese(String str) { |
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if (str == null) { |
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return false; |
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} |
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Pattern pattern = Pattern.compile("[\\u4E00-\\u9FBF]+"); |
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return pattern.matcher(str).find(); |
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} |
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public static boolean hasSpace(String str) { |
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if (str == null) { |
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return false; |
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} |
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int len = str.length(); |
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for (int i = 0; i < len; i++) { |
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if (str.charAt(i) == ' ') { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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