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/*******************************************************************************
* Copyright 2017 ZTE, Inc. and others.
*
* 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 org.onap.msb.sdk.httpclient.handler.impl;
import org.onap.msb.sdk.httpclient.annotaion.LoadBalance;
import org.onap.msb.sdk.httpclient.annotaion.LoadBalance.LBSTYLE;
import org.onap.msb.sdk.httpclient.exception.RetrofitServiceRuntimeException;
import org.onap.msb.sdk.httpclient.handler.HandlerContextBuilder;
import org.onap.msb.sdk.httpclient.handler.RetrofitServiceHandlerContext;
import org.onap.msb.sdk.httpclient.lb.ILoadBalanceStrategy;
import org.onap.msb.sdk.httpclient.lb.RoundRobinLBStrategy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author 10071214
*
*/
public class LBBuilder implements HandlerContextBuilder {
private final static Logger logger = LoggerFactory.getLogger(LBBuilder.class);
/*
* (non-Javadoc)
*
* @see
* com.zte.ums.zenap.versey.rpc.retrofit2.service.impl.handler.HandlerContextBuilder#build(com.zte
* .ums.zenap.versey.rpc.retrofit2.service.impl.handler.RetrofitServiceHandlerContext)
*/
@Override
public void build(RetrofitServiceHandlerContext ctx) throws RetrofitServiceRuntimeException {
initlb(ctx);
}
private void initlb(RetrofitServiceHandlerContext ctx) throws RetrofitServiceRuntimeException {
LoadBalance lb = ctx.getRetrofitSrvInterfaceClazz().getAnnotation(LoadBalance.class);
LBSTYLE lbStyle = null;
ILoadBalanceStrategy lbStrategy;
if (lb != null) {
lbStyle = lb.lbStyle();
try {
lbStrategy = (ILoadBalanceStrategy) Class.forName(lb.lbClassName()).newInstance();
} catch (Exception e) {
logger.error("init lb strategy error", e);
throw new RetrofitServiceRuntimeException("init lb strategy error", e);
}
} else {
lbStyle = LBSTYLE.CLIENT;
lbStrategy = new RoundRobinLBStrategy();
}
ctx.setLbStyle(lbStyle);
ctx.setLbStrategy(lbStrategy);
}
}
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