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/**
* Copyright (C) 2016 - 2030 youtongluan.
*
* 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.yx.rpc.codec.encoders;
import java.nio.charset.CharacterCodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoderException;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
import org.slf4j.Logger;
import org.yx.annotation.Bean;
import org.yx.conf.AppInfo;
import org.yx.exception.SumkException;
import org.yx.log.Log;
import org.yx.log.Logs;
import org.yx.rpc.Profile;
import org.yx.rpc.RpcJson;
import org.yx.rpc.client.Req;
import org.yx.rpc.codec.Protocols;
import org.yx.rpc.codec.ReqParamType;
import org.yx.rpc.codec.SumkProtocolEncoder;
@Bean
public class ReqEncoder implements SumkMinaEncoder {
private Logger log = Logs.rpc();
private String NULL = "null";
@Override
public boolean accept(Class> messageClz) {
return messageClz == Req.class;
}
@Override
public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
Req req = (Req) message;
String jsonedArg = req.getJsonedParam();
String[] params = req.getParamArray();
if (req.hasFeature(ReqParamType.REQ_PARAM_JSON)) {
this.encodeRequestString(ReqParamType.REQ_PARAM_JSON, out, new String[] { RpcJson.operator().toJson(req),
Protocols.LINE_SPLIT + Protocols.LINE_SPLIT, jsonedArg });
return;
}
if (params == null) {
params = new String[0];
}
int paramLength = params.length;
List order_req = new ArrayList<>(paramLength * 2 + 3);
if (paramLength > 99) {
throw new SumkException(456543, "微服务参数太多,最多只有99个");
}
order_req.add(RpcJson.operator().toJson(req));
order_req.add(Protocols.LINE_SPLIT + Protocols.LINE_SPLIT);
String strParamLength = new String(new byte[] { (byte) paramLength }, AppInfo.UTF8);
order_req.add(strParamLength);
for (int i = 0; i < paramLength; i++) {
order_req.add(params[i]);
if (i != paramLength - 1) {
order_req.add(Protocols.LINE_SPLIT);
}
}
if (Log.isON(log)) {
log.trace("req in array: {}", order_req);
}
this.encodeRequestString(ReqParamType.REQ_PARAM_ORDER, out, order_req.toArray(new String[order_req.size()]));
}
protected void encodeRequestString(int code, ProtocolEncoderOutput out, CharSequence[] message)
throws CharacterCodingException, ProtocolEncoderException {
int strLength = 0;
for (CharSequence m : message) {
strLength += m == null ? NULL.length() : m.length();
}
IoBuffer buffer = SumkProtocolEncoder.createIoBuffer(strLength);
SumkProtocolEncoder.putRequestProtocol(code, buffer);
buffer.position(8);
for (CharSequence m : message) {
if (m == null) {
buffer.putString(NULL, Profile.UTF8.newEncoder());
continue;
}
buffer.putString(m, Profile.UTF8.newEncoder());
}
int pos = buffer.position();
buffer.position(4);
buffer.putInt(pos - 8);
buffer.position(pos);
buffer.flip();
out.write(buffer);
}
}
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