io.servicecomb.common.rest.codec.param.HeaderProcessorCreator Maven / Gradle / Ivy
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/*
* Copyright 2017 Huawei Technologies Co., Ltd
*
* 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 io.servicecomb.common.rest.codec.param;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Enumeration;
import javax.servlet.http.HttpServletRequest;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.type.TypeFactory;
import io.servicecomb.common.rest.codec.RestClientRequest;
import io.servicecomb.common.rest.codec.RestObjectMapper;
import io.swagger.models.parameters.Parameter;
public class HeaderProcessorCreator implements ParamValueProcessorCreator {
public static final String PARAMTYPE = "header";
public static class HeaderProcessor extends AbstractParamProcessor {
public HeaderProcessor(String paramPath, JavaType targetType) {
super(paramPath, targetType);
}
@Override
public Object getValue(HttpServletRequest request) throws Exception {
Object value = null;
if (targetType.isContainerType()) {
Enumeration headerValues = request.getHeaders(paramPath);
if (headerValues == null) {
return null;
}
value = Collections.list(headerValues);
} else {
value = request.getHeader(paramPath);
}
return convertValue(value, targetType);
}
@Override
public void setValue(RestClientRequest clientRequest, Object arg) throws Exception {
clientRequest.putHeader(paramPath, RestObjectMapper.INSTANCE.convertToString(arg));
}
@Override
public String getProcessorType() {
return PARAMTYPE;
}
}
public HeaderProcessorCreator() {
ParamValueProcessorCreatorManager.INSTANCE.register(PARAMTYPE, this);
}
@Override
public ParamValueProcessor create(Parameter parameter, Type genericParamType) {
JavaType targetType = TypeFactory.defaultInstance().constructType(genericParamType);
return new HeaderProcessor(parameter.getName(), targetType);
}
}