#20337

Committed 26 Jun 2026 11:37AM UTC coverage: 89.06% (+0.2%) from 88.876%

Build # #20337

Build Type

push

github

Committed by

web-flow

Commit Message

Ext_proc filter and client interceptor (#12792)

Implements ext_proc filter from [grfc A93](https://github.com/grpc/proposal/pull/484)  (internal [design doc](http://go/ext-proc-design-java)).

Coverage Stats

37585 of 42202 relevant lines covered (89.06%)

0.89 hits per line

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90.91

/../xds/src/main/java/io/grpc/xds/RouterFilter.java

/*
 * Copyright 2021 The gRPC Authors
 *
 * 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.grpc.xds;

import com.google.protobuf.Message;
import io.grpc.xds.Filter.FilterConfigParseContext;
import io.grpc.xds.Filter.FilterContext;

/**
 * Router filter implementation. Currently this filter does not parse any field in the config.
 */
final class RouterFilter implements Filter {
  private static final RouterFilter INSTANCE = new RouterFilter();

  static final String TYPE_URL =
      "type.googleapis.com/envoy.extensions.filters.http.router.v3.Router";

  static final FilterConfig ROUTER_CONFIG = new FilterConfig() {
    @Override
    public String typeUrl() {
      return TYPE_URL;
    }

    @Override
    public String toString() {
      return "ROUTER_CONFIG";
    }
  };

  static final class Provider implements Filter.Provider {
    @Override
    public String[] typeUrls() {
      return new String[]{TYPE_URL};
    }

    @Override
    public boolean isClientFilter() {
      return true;
    }

    @Override
    public boolean isServerFilter() {
      return true;
    }

    @Override
    public RouterFilter newInstance(FilterContext context) {
      return INSTANCE;
    }

    @Override
    public ConfigOrError<? extends FilterConfig> parseFilterConfig(
        Message rawProtoMessage, FilterConfigParseContext context) {
      return ConfigOrError.fromConfig(ROUTER_CONFIG);
    }

    @Override
    public ConfigOrError<? extends FilterConfig> parseFilterConfigOverride(
        Message rawProtoMessage, FilterConfigParseContext context) {
      return ConfigOrError.fromError("Router Filter should not have override config");
    }
  }

  private RouterFilter() {}
}

1	/*
2	* Copyright 2021 The gRPC Authors
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16
17	package io.grpc.xds;
18
19	import com.google.protobuf.Message;
20	import io.grpc.xds.Filter.FilterConfigParseContext;
21	import io.grpc.xds.Filter.FilterContext;
22
23	/**
24	* Router filter implementation. Currently this filter does not parse any field in the config.
25	*/
26	final class RouterFilter implements Filter {
27	private static final RouterFilter INSTANCE = new RouterFilter();	1✔
28
29	static final String TYPE_URL =
30	"type.googleapis.com/envoy.extensions.filters.http.router.v3.Router";
31
32	static final FilterConfig ROUTER_CONFIG = new FilterConfig() {	1✔
33	@Override
34	public String typeUrl() {
35	return TYPE_URL;	1✔
36	}
37
38	@Override
39	public String toString() {
40	return "ROUTER_CONFIG";	1✔
41	}
42	};
43
44	static final class Provider implements Filter.Provider {	1✔
45	@Override
46	public String[] typeUrls() {
47	return new String[]{TYPE_URL};	1✔
48	}
49
50	@Override
51	public boolean isClientFilter() {
52	return true;	1✔
53	}
54
55	@Override
56	public boolean isServerFilter() {
57	return true;	1✔
58	}
59
60	@Override
61	public RouterFilter newInstance(FilterContext context) {
62	return INSTANCE;	1✔
63	}
64
65	@Override
66	public ConfigOrError<? extends FilterConfig> parseFilterConfig(
67	Message rawProtoMessage, FilterConfigParseContext context) {
68	return ConfigOrError.fromConfig(ROUTER_CONFIG);	1✔
69	}
70
71	@Override
72	public ConfigOrError<? extends FilterConfig> parseFilterConfigOverride(
73	Message rawProtoMessage, FilterConfigParseContext context) {
74	return ConfigOrError.fromError("Router Filter should not have override config");	×
75	}
76	}
77
78	private RouterFilter() {}
79	}

grpc / grpc-java / #20337

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