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87 changes: 87 additions & 0 deletions
87
...ateway/src/main/java/com/jd/live/agent/demo/springcloud/v3/gateway/LiveGatewayFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * Copyright © ${year} ${owner} (${email}) | ||
| * | ||
| * 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.jd.live.agent.demo.springcloud.v3.gateway; | ||
|
|
||
| import org.reactivestreams.Publisher; | ||
| import org.springframework.cloud.gateway.filter.GatewayFilterChain; | ||
| import org.springframework.cloud.gateway.filter.GlobalFilter; | ||
| import org.springframework.core.Ordered; | ||
| import org.springframework.core.io.buffer.DataBuffer; | ||
| import org.springframework.core.io.buffer.DataBufferUtils; | ||
| import org.springframework.http.HttpHeaders; | ||
| import org.springframework.http.server.reactive.ServerHttpRequest; | ||
| import org.springframework.http.server.reactive.ServerHttpResponse; | ||
| import org.springframework.http.server.reactive.ServerHttpResponseDecorator; | ||
| import org.springframework.stereotype.Component; | ||
| import org.springframework.web.server.ServerWebExchange; | ||
| import reactor.core.publisher.Flux; | ||
| import reactor.core.publisher.Mono; | ||
|
|
||
| import java.nio.charset.StandardCharsets; | ||
|
|
||
| @Component | ||
| public class LiveGatewayFilter implements GlobalFilter, Ordered { | ||
|
|
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| @Override | ||
| public int getOrder() { | ||
| return -2; | ||
| } | ||
|
|
||
| @Override | ||
| public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { | ||
| ServerHttpRequest request = exchange.getRequest(); | ||
| ServerHttpResponse response = exchange.getResponse(); | ||
| ServerHttpResponseDecorator decorator = new ServerHttpResponseDecorator(response) { | ||
| @Override | ||
| public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) { | ||
| if (body instanceof Flux) { | ||
| Flux<? extends DataBuffer> fluxBody = (Flux<? extends DataBuffer>) body; | ||
| return super.writeWith(fluxBody.buffer().map(dataBuffers -> { | ||
| HttpHeaders headers = request.getHeaders(); | ||
| StringBuilder builder = new StringBuilder("spring-gateway:\n"). | ||
| append(" header:{"). | ||
| append("x-live-space-id=").append(headers.getFirst("x-live-space-id")). | ||
| append(", x-live-rule-id=").append(headers.getFirst("x-live-rule-id")). | ||
| append(", x-live-uid=").append(headers.getFirst("x-live-uid")). | ||
| append(", x-lane-space-id=").append(headers.getFirst("x-lane-space-id")). | ||
| append(", x-lane-code=").append(headers.getFirst("x-lane-code")). | ||
| append("}\n"). | ||
| append(" location:{"). | ||
| append("liveSpaceId=").append(System.getProperty("x-live-space-id")). | ||
| append(", unit=").append(System.getProperty("x-live-unit")). | ||
| append(", cell=").append(System.getProperty("x-live-cell")). | ||
| append(", laneSpaceId=").append(System.getProperty("x-lane-space-id")). | ||
| append(", lane=").append(System.getProperty("x-lane-code")). | ||
| append("}\n\n"); | ||
| dataBuffers.forEach(dataBuffer -> { | ||
| // probably should reuse buffers | ||
| byte[] content = new byte[dataBuffer.readableByteCount()]; | ||
| dataBuffer.read(content); | ||
| builder.append(new String(content, StandardCharsets.UTF_8)); | ||
| DataBufferUtils.release(dataBuffer); | ||
| }); | ||
| byte[] data = builder.toString().getBytes(StandardCharsets.UTF_8); | ||
| response.getHeaders().setContentLength(data.length); | ||
| return response.bufferFactory().wrap(data); | ||
| })); | ||
| } | ||
| return super.writeWith(body); | ||
| } | ||
| }; | ||
|
|
||
| return chain.filter(exchange.mutate().response(decorator).build()); | ||
| } | ||
| } |
101 changes: 101 additions & 0 deletions
101
...src/main/java/com/jd/live/agent/demo/springcloud/v3/gateway/LiveGatewayFilterFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * Copyright © ${year} ${owner} (${email}) | ||
| * | ||
| * 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.jd.live.agent.demo.springcloud.v3.gateway; | ||
|
|
||
| import org.reactivestreams.Publisher; | ||
| import org.springframework.cloud.gateway.filter.GatewayFilter; | ||
| import org.springframework.cloud.gateway.filter.GatewayFilterChain; | ||
| import org.springframework.cloud.gateway.filter.OrderedGatewayFilter; | ||
| import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory; | ||
| import org.springframework.core.io.buffer.DataBuffer; | ||
| import org.springframework.core.io.buffer.DataBufferUtils; | ||
| import org.springframework.http.HttpHeaders; | ||
| import org.springframework.http.server.reactive.ServerHttpRequest; | ||
| import org.springframework.http.server.reactive.ServerHttpResponse; | ||
| import org.springframework.http.server.reactive.ServerHttpResponseDecorator; | ||
| import org.springframework.stereotype.Component; | ||
| import org.springframework.web.server.ServerWebExchange; | ||
| import reactor.core.publisher.Flux; | ||
| import reactor.core.publisher.Mono; | ||
|
|
||
| import java.nio.charset.StandardCharsets; | ||
|
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| @Component | ||
| public class LiveGatewayFilterFactory extends AbstractGatewayFilterFactory<LiveGatewayFilterFactory.Config> { | ||
|
|
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| public LiveGatewayFilterFactory() { | ||
| super(Config.class); | ||
| } | ||
|
|
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| @Override | ||
| public String name() { | ||
| return "Live"; | ||
| } | ||
|
|
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| @Override | ||
| public GatewayFilter apply(Config config) { | ||
| return new OrderedGatewayFilter(new GatewayFilter() { | ||
| @Override | ||
| public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { | ||
| ServerHttpRequest request = exchange.getRequest(); | ||
| ServerHttpResponse response = exchange.getResponse(); | ||
| ServerHttpResponseDecorator decorator = new ServerHttpResponseDecorator(response) { | ||
| @Override | ||
| public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) { | ||
| if (body instanceof Flux) { | ||
| Flux<? extends DataBuffer> fluxBody = (Flux<? extends DataBuffer>) body; | ||
| return super.writeWith(fluxBody.buffer().map(dataBuffers -> { | ||
| HttpHeaders headers = request.getHeaders(); | ||
| StringBuilder builder = new StringBuilder("spring-gateway:\n"). | ||
| append(" header:{"). | ||
| append("x-live-space-id=").append(headers.getFirst("x-live-space-id")). | ||
| append(", x-live-rule-id=").append(headers.getFirst("x-live-rule-id")). | ||
| append(", x-live-uid=").append(headers.getFirst("x-live-uid")). | ||
| append(", x-lane-space-id=").append(headers.getFirst("x-lane-space-id")). | ||
| append(", x-lane-code=").append(headers.getFirst("x-lane-code")). | ||
| append("}\n"). | ||
| append(" location:{"). | ||
| append("liveSpaceId=").append(System.getProperty("x-live-space-id")). | ||
| append(", unit=").append(System.getProperty("x-live-unit")). | ||
| append(", cell=").append(System.getProperty("x-live-cell")). | ||
| append(", laneSpaceId=").append(System.getProperty("x-lane-space-id")). | ||
| append(", lane=").append(System.getProperty("x-lane-code")). | ||
| append("}\n\n"); | ||
| dataBuffers.forEach(dataBuffer -> { | ||
| // probably should reuse buffers | ||
| byte[] content = new byte[dataBuffer.readableByteCount()]; | ||
| dataBuffer.read(content); | ||
| builder.append(new String(content, StandardCharsets.UTF_8)); | ||
| DataBufferUtils.release(dataBuffer); | ||
| }); | ||
| byte[] data = builder.toString().getBytes(StandardCharsets.UTF_8); | ||
| response.getHeaders().setContentLength(data.length); | ||
| return response.bufferFactory().wrap(data); | ||
| })); | ||
| } | ||
| return super.writeWith(body); | ||
| } | ||
| }; | ||
|
|
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| return chain.filter(exchange.mutate().response(decorator).build()); | ||
| } | ||
| }, -2); | ||
| } | ||
|
|
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| public static class Config { | ||
|
|
||
| } | ||
| } |