com.github.edgar615.util.validation.ISO8601DateRule Maven / Gradle / Ivy
package com.github.edgar615.util.validation;
import com.google.common.base.MoreObjects;
import com.google.common.collect.Lists;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* ISO 8601的日期格式.
*
* 只校验String类型的值，其他类型默认为非法.
*
* @author Edgar Date 2016/1/6
*/
class ISO8601DateRule implements Rule {
/**
* 正则表达式
*/
private static final Pattern PATTERN = Pattern.compile("\\d{4}-\\d{1,2}-\\d{1,2}");
private static final String KEY = "ISO8601Date";
private static final String TRUE = "true";
private ISO8601DateRule() {
}
static Rule create() {
return new ISO8601DateRule();
}
@Override
public String message() {
return "Must match pattern: 'yyyy-MM-dd'";
}
@Override
public boolean isValid(Object property) {
if (property != null && (property instanceof String)) {
String str = String.class.cast(property);
Matcher matcher = PATTERN.matcher(str);
return matcher.matches();
}
return true;
}
@Override
public String toString() {
return MoreObjects.toStringHelper("ISO8601DateRule")
.toString();
}
static class Parser implements RuleParser {
@Override
public Rule parse(List keyAndValue) {
String key = keyAndValue.get(0);
if (!KEY.equals(key)) {
return null;
}
if (keyAndValue.size() == 1) {
return new ISO8601DateRule();
}
if (TRUE.equalsIgnoreCase(keyAndValue.get(1))) {
return new ISO8601DateRule();
}
return null;
}
@Override
public List toParsableString(Rule rule) {
if (rule instanceof ISO8601DateRule) {
return Lists.newArrayList(KEY);
}
return Lists.newArrayList();
}
}
}