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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| /* | ||
| * Copyright 2017 HugeGraph Authors | ||
| * | ||
| * 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 com.baidu.hugegraph.util; | ||
|
|
||
| import java.text.ParseException; | ||
| import java.util.Date; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
|
|
||
| import com.baidu.hugegraph.date.SafeDateFormat; | ||
| import com.google.common.collect.ImmutableMap; | ||
|
|
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| public final class DateUtil { | ||
|
|
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| public static final Date DATE_ZERO = new Date(0L); | ||
|
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| private static final Map<String, String> VALID_DFS = ImmutableMap.of( | ||
| "^\\d{4}-\\d{1,2}-\\d{1,2}", | ||
| "yyyy-MM-dd", | ||
| "^\\d{4}-\\d{1,2}-\\d{1,2}\\s\\d{2}:\\d{2}:\\d{2}", | ||
| "yyyy-MM-dd HH:mm:ss", | ||
| "^\\d{4}-\\d{1,2}-\\d{1,2}\\s\\d{2}:\\d{2}:\\d{2}\\.\\d{1,3}", | ||
| "yyyy-MM-dd HH:mm:ss.SSS" | ||
| ); | ||
|
|
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| private static final Map<String, SafeDateFormat> DATE_FORMATS = | ||
| new ConcurrentHashMap<>(); | ||
|
|
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| public static Date parse(String value) { | ||
| for (Map.Entry<String, String> entry : VALID_DFS.entrySet()) { | ||
| if (value.matches(entry.getKey())) { | ||
| try { | ||
| return parse(value, entry.getValue()); | ||
| } catch (ParseException e) { | ||
| throw new IllegalArgumentException(String.format( | ||
| "%s, expect format: %s", | ||
| e.getMessage(), entry.getValue())); | ||
| } | ||
| } | ||
| } | ||
| throw new IllegalArgumentException(String.format( | ||
| "Expected date format is: %s, but got '%s'", | ||
| VALID_DFS.values(), value)); | ||
| } | ||
|
|
||
| public static Date parse(String value, String df) throws ParseException { | ||
| SafeDateFormat dateFormat = getDateFormat(df); | ||
| return dateFormat.parse(value); | ||
| } | ||
|
|
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| public static Date now() { | ||
| return new Date(); | ||
| } | ||
|
|
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| private static SafeDateFormat getDateFormat(String df) { | ||
| SafeDateFormat dateFormat = DATE_FORMATS.get(df); | ||
| if (dateFormat == null) { | ||
| dateFormat = new SafeDateFormat(df); | ||
| /* | ||
| * Specify whether or not date/time parsing is to be lenient. | ||
| * With lenient parsing, the parser may use heuristics to interpret | ||
| * inputs that do not precisely match this object's format. | ||
| * With strict parsing, inputs must match this object's format. | ||
| */ | ||
| dateFormat.setLenient(false); | ||
| SafeDateFormat previous = DATE_FORMATS.putIfAbsent(df, dateFormat); | ||
| if (previous != null) { | ||
| dateFormat = previous; | ||
| } | ||
| } | ||
| return dateFormat; | ||
| } | ||
|
|
||
| public static Object toPattern(String df) { | ||
| SafeDateFormat dateFormat = getDateFormat(df); | ||
| return dateFormat.toPattern(); | ||
| } | ||
| } |
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75 changes: 75 additions & 0 deletions
75
src/test/java/com/baidu/hugegraph/unit/util/DateUtilTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| /* | ||
| * Copyright 2017 HugeGraph Authors | ||
| * | ||
| * 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 com.baidu.hugegraph.unit.util; | ||
|
|
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| import java.util.Date; | ||
|
|
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| import org.junit.Test; | ||
|
|
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| import com.baidu.hugegraph.testutil.Assert; | ||
| import com.baidu.hugegraph.unit.BaseUnitTest; | ||
| import com.baidu.hugegraph.util.DateUtil; | ||
|
|
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| public class DateUtilTest extends BaseUnitTest { | ||
|
|
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| @Test | ||
| public void testParse() { | ||
| Date date1 = DateUtil.parse("2020-06-12 12:00:00"); | ||
| Date date2 = DateUtil.parse("2020-06-13"); | ||
| Assert.assertTrue(date1.before(date2)); | ||
|
|
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| Assert.assertThrows(IllegalArgumentException.class, () -> { | ||
| DateUtil.parse("2018-"); | ||
| }, e -> { | ||
| Assert.assertContains("Expected date format is:", | ||
| e.getMessage()); | ||
| }); | ||
|
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| Assert.assertThrows(IllegalArgumentException.class, () -> { | ||
| DateUtil.parse("2018-15-07 12:00:00"); | ||
| }, e -> { | ||
| Assert.assertContains(", expect format: ", e.getMessage()); | ||
| }); | ||
| } | ||
|
|
||
| @Test | ||
| public void testNow() { | ||
| Date date1 = DateUtil.now(); | ||
| try { | ||
| Thread.sleep(100); | ||
| } catch (InterruptedException e) { | ||
| // ignore | ||
| } | ||
| Date date2 = DateUtil.now(); | ||
| Assert.assertTrue(date1.before(date2)); | ||
| } | ||
|
|
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| @Test | ||
| public void testToPattern() { | ||
| Object pattern = DateUtil.toPattern("yyyyMMdd HH:mm:ss.SSS"); | ||
| Assert.assertEquals("yyyyMMdd HH:mm:ss.SSS", pattern); | ||
|
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| Assert.assertThrows(IllegalArgumentException.class, () -> { | ||
| DateUtil.toPattern("iyyyyMMdd"); | ||
| }, e -> { | ||
| Assert.assertContains("Illegal pattern character 'i'", e.getMessage()); | ||
| }); | ||
| } | ||
| } |
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