blade-tool/blade-core-cloud/src/main/java/org/springblade/core/cloud/header/BladeHttpHeadersCallable.java

57 lines
1.7 KiB
Java

/**
* Copyright (c) 2018-2028, DreamLu 卢春梦 (qq596392912@gmail.com).
* <p>
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.gnu.org/licenses/lgpl.html
* <p>
* 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.springblade.core.cloud.header;
import org.springblade.core.cloud.props.BladeFeignHeadersProperties;
import org.springframework.http.HttpHeaders;
import org.springframework.lang.Nullable;
import java.util.concurrent.Callable;
/**
* HttpHeaders hystrix Callable
*
* @param <V> 泛型标记
* @author L.cm
*/
public class BladeHttpHeadersCallable<V> implements Callable<V> {
private final Callable<V> delegate;
@Nullable
private HttpHeaders httpHeaders;
public BladeHttpHeadersCallable(Callable<V> delegate,
@Nullable BladeFeignAccountGetter accountGetter,
BladeFeignHeadersProperties properties) {
this.delegate = delegate;
this.httpHeaders = BladeHttpHeadersContextHolder.toHeaders(accountGetter, properties);
}
@Override
public V call() throws Exception {
if (httpHeaders == null) {
return delegate.call();
}
try {
BladeHttpHeadersContextHolder.set(httpHeaders);
return delegate.call();
} finally {
BladeHttpHeadersContextHolder.remove();
httpHeaders.clear();
httpHeaders = null;
}
}
}