
com.dangdang.ddframe.reg.spring.placeholder.RegistryPropertySource Maven / Gradle / Ivy
/*
* Copyright 1999-2015 dangdang.com.
*
* 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
*
* 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.dangdang.ddframe.reg.spring.placeholder;
import java.util.UUID;
import org.springframework.core.env.PropertySource;
import com.dangdang.ddframe.reg.base.RegistryCenter;
import com.dangdang.ddframe.reg.exception.RegException;
/**
* 将注册中心的配置数据转化为Spring的属性源.
*
* @author zhangliang
*/
public class RegistryPropertySource extends PropertySource {
private final RegistryCenter source;
public RegistryPropertySource(final RegistryCenter source) {
super(UUID.randomUUID().toString(), source);
this.source = source;
}
@Override
public Object getProperty(final String name) {
try {
return source.get(name);
} catch (final RegException ex) {
return null;
}
}
}
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