package com.stylefeng.guns.core.config;
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import com.stylefeng.guns.core.base.controller.GunsErrorView;
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import com.stylefeng.guns.core.exception.GunsException;
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import com.stylefeng.guns.core.exception.GunsExceptionEnum;
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import com.stylefeng.guns.core.util.DateUtil;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.convert.converter.Converter;
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import org.springframework.core.convert.support.GenericConversionService;
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import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
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import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
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import javax.annotation.PostConstruct;
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import java.util.Date;
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import java.util.regex.Pattern;
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@Configuration
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public class DefaultWebConfig extends WebMvcConfigurationSupport {
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@Autowired
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private RequestMappingHandlerAdapter handlerAdapter;
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@Bean("error")
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public GunsErrorView error() {
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return new GunsErrorView();
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}
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@PostConstruct
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public void addConversionConfig() {
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ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) handlerAdapter.getWebBindingInitializer();
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GenericConversionService genericConversionService = (GenericConversionService) initializer.getConversionService();
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genericConversionService.addConverter(new StringToDateConverter());
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}
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public class StringToDateConverter implements Converter<String, Date> {
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@Override
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public Date convert(String dateString) {
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String patternDate = "\\d{4}-\\d{1,2}-\\d{1,2}";
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String patternTimeMinutes = "\\d{4}-\\d{1,2}-\\d{1,2} \\d{1,2}:\\d{1,2}";
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String patternTimeSeconds = "\\d{4}-\\d{1,2}-\\d{1,2} \\d{1,2}:\\d{1,2}:\\d{1,2}";
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boolean dateFlag = Pattern.matches(patternDate, dateString);
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boolean timeMinutesFlag = Pattern.matches(patternTimeMinutes, dateString);
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boolean timeSecondsFlag = Pattern.matches(patternTimeSeconds, dateString);
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if (dateFlag) {
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return DateUtil.parseDate(dateString);
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} else if (timeMinutesFlag) {
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return DateUtil.parseTimeMinutes(dateString);
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} else if (timeSecondsFlag) {
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return DateUtil.parseTime(dateString);
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} else {
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throw new GunsException(GunsExceptionEnum.INVLIDE_DATE_STRING);
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}
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}
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}
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}
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