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/*
* 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 org.apache.dubbo.config.spring.context.properties;
import org.apache.dubbo.config.AbstractConfig;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.validation.BindingResult;
import org.springframework.validation.DataBinder;
import org.springframework.validation.FieldError;
import java.util.List;
import java.util.Map;
import java.util.stream.IntStream;
import static com.alibaba.spring.util.PropertySourcesUtils.getSubProperties;
/**
* Default {@link DubboConfigBinder} implementation based on Spring {@link DataBinder}
*/
public class DefaultDubboConfigBinder extends AbstractDubboConfigBinder {
@Override
public void bind(String prefix, C dubboConfig) {
DataBinder dataBinder = new DataBinder(dubboConfig);
// Set ignored*
dataBinder.setIgnoreInvalidFields(isIgnoreInvalidFields());
dataBinder.setIgnoreUnknownFields(isIgnoreUnknownFields());
// Get properties under specified prefix from PropertySources
Map properties = getSubProperties(getPropertySources(), prefix);
// Convert Map to MutablePropertyValues
MutablePropertyValues propertyValues = new MutablePropertyValues(properties);
// Bind
dataBinder.bind(propertyValues);
BindingResult bindingResult = dataBinder.getBindingResult();
if (bindingResult.hasGlobalErrors()) {
throw new RuntimeException("Data bind global error, please check config. config: " + bindingResult.getGlobalError() + "");
}
if (bindingResult.hasFieldErrors()) {
throw new RuntimeException(buildErrorMsg(bindingResult.getFieldErrors(), prefix, dubboConfig.getClass().getSimpleName()));
}
}
private String buildErrorMsg(List errors, String prefix, String config) {
StringBuilder builder = new StringBuilder("Data bind error, please check config. config: " + config + ", prefix: " + prefix
+ " , error fields: [" + errors.get(0).getField());
if (errors.size() > 1) {
IntStream.range(1, errors.size()).forEach(i -> {
builder.append(", " + errors.get(i).getField());
});
}
builder.append(']');
return builder.toString();
}
}