spring-data-elasticsearch DatePropertyValueConverter 源码
spring-data-elasticsearch DatePropertyValueConverter 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/core/convert/DatePropertyValueConverter.java
/*
* Copyright 2021-2022 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.data.elasticsearch.core.convert;
import java.util.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.data.mapping.PersistentProperty;
/**
* @author Sascha Woo
* @since 4.3
*/
public class DatePropertyValueConverter extends AbstractPropertyValueConverter {
private static final Log LOGGER = LogFactory.getLog(DatePropertyValueConverter.class);
private final List<ElasticsearchDateConverter> dateConverters;
public DatePropertyValueConverter(PersistentProperty<?> property, List<ElasticsearchDateConverter> dateConverters) {
super(property);
this.dateConverters = dateConverters;
}
@Override
public Object read(Object value) {
String s = value.toString();
for (ElasticsearchDateConverter dateConverter : dateConverters) {
try {
return dateConverter.parse(s);
} catch (Exception e) {
if (LOGGER.isTraceEnabled()) {
LOGGER.trace(e.getMessage(), e);
}
}
}
throw new ConversionException(String.format("Unable to convert value '%s' to %s for property '%s'", s,
getProperty().getActualType().getTypeName(), getProperty().getName()));
}
@Override
public Object write(Object value) {
if (!Date.class.isAssignableFrom(value.getClass())) {
return value.toString();
}
try {
return dateConverters.get(0).format((Date) value);
} catch (Exception e) {
throw new ConversionException(
String.format("Unable to convert value '%s' of property '%s'", value, getProperty().getName()), e);
}
}
}
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