#19715

Committed 06 Mar 2025 08:10AM UTC coverage: 88.479% (-0.04%) from 88.515%

Build # #19715

Build Type

push

github

Committed by

web-flow

Commit Message

xds: xDS-based HTTP CONNECT configuration (#11861)

Run Details

34489 of 38980 relevant lines covered (88.48%)

0.88 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

41.54

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

/*
 * Copyright 2020 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 static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableMap;
import com.google.protobuf.Struct;
import io.grpc.Internal;
import io.grpc.LoadBalancer;
import io.grpc.LoadBalancer.Helper;
import io.grpc.LoadBalancerProvider;
import io.grpc.NameResolver.ConfigOrError;
import io.grpc.Status;
import io.grpc.xds.EnvoyServerProtoData.OutlierDetection;
import io.grpc.xds.EnvoyServerProtoData.UpstreamTlsContext;
import io.grpc.xds.client.Bootstrapper.ServerInfo;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import javax.annotation.Nullable;

/**
 * The provider for the cluster_resolver load balancing policy. This class should not be directly
 * referenced in code.  The policy should be accessed through
 * {@link io.grpc.LoadBalancerRegistry#getProvider} with the name "cluster_resolver_experimental".
 */
@Internal
public final class ClusterResolverLoadBalancerProvider extends LoadBalancerProvider {

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

  @Override
  public int getPriority() {
    return 5;
  }

  @Override
  public String getPolicyName() {
    return XdsLbPolicies.CLUSTER_RESOLVER_POLICY_NAME;
  }

  @Override
  public ConfigOrError parseLoadBalancingPolicyConfig(Map<String, ?> rawLoadBalancingPolicyConfig) {
    return ConfigOrError.fromError(
        Status.INTERNAL.withDescription(getPolicyName() + " cannot be used from service config"));
  }

  @Override
  public LoadBalancer newLoadBalancer(Helper helper) {
    return new ClusterResolverLoadBalancer(helper);
  }

  static final class ClusterResolverConfig {
    // Ordered list of clusters to be resolved.
    final List<DiscoveryMechanism> discoveryMechanisms;
    // GracefulSwitch configuration
    final Object lbConfig;
    private final boolean isHttp11ProxyAvailable;

    ClusterResolverConfig(List<DiscoveryMechanism> discoveryMechanisms, Object lbConfig,
        boolean isHttp11ProxyAvailable) {
      this.discoveryMechanisms = checkNotNull(discoveryMechanisms, "discoveryMechanisms");
      this.lbConfig = checkNotNull(lbConfig, "lbConfig");
      this.isHttp11ProxyAvailable = isHttp11ProxyAvailable;
    }

    boolean isHttp11ProxyAvailable() {
      return isHttp11ProxyAvailable;
    }

    @Override
    public int hashCode() {
      return Objects.hash(discoveryMechanisms, lbConfig);
    }

    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      ClusterResolverConfig that = (ClusterResolverConfig) o;
      return discoveryMechanisms.equals(that.discoveryMechanisms)
          && lbConfig.equals(that.lbConfig);
    }

    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("discoveryMechanisms", discoveryMechanisms)
          .add("lbConfig", lbConfig)
          .toString();
    }

    // Describes the mechanism for a specific cluster.
    static final class DiscoveryMechanism {
      // Name of the cluster to resolve.
      final String cluster;
      // Type of the cluster.
      final Type type;
      // Load reporting server info. Null if not enabled.
      @Nullable
      final ServerInfo lrsServerInfo;
      // Cluster-level max concurrent request threshold. Null if not specified.
      @Nullable
      final Long maxConcurrentRequests;
      // TLS context for connections to endpoints in the cluster.
      @Nullable
      final UpstreamTlsContext tlsContext;
      // Resource name for resolving endpoints via EDS. Only valid for EDS clusters.
      @Nullable
      final String edsServiceName;
      // Hostname for resolving endpoints via DNS. Only valid for LOGICAL_DNS clusters.
      @Nullable
      final String dnsHostName;
      @Nullable
      final OutlierDetection outlierDetection;
      final Map<String, Struct> filterMetadata;

      enum Type {
        EDS,
        LOGICAL_DNS,
      }

      private DiscoveryMechanism(String cluster, Type type, @Nullable String edsServiceName,
          @Nullable String dnsHostName, @Nullable ServerInfo lrsServerInfo,
          @Nullable Long maxConcurrentRequests, @Nullable UpstreamTlsContext tlsContext,
          Map<String, Struct> filterMetadata, @Nullable OutlierDetection outlierDetection) {
        this.cluster = checkNotNull(cluster, "cluster");
        this.type = checkNotNull(type, "type");
        this.edsServiceName = edsServiceName;
        this.dnsHostName = dnsHostName;
        this.lrsServerInfo = lrsServerInfo;
        this.maxConcurrentRequests = maxConcurrentRequests;
        this.tlsContext = tlsContext;
        this.filterMetadata = ImmutableMap.copyOf(checkNotNull(filterMetadata, "filterMetadata"));
        this.outlierDetection = outlierDetection;
      }

      static DiscoveryMechanism forEds(String cluster, @Nullable String edsServiceName,
          @Nullable ServerInfo lrsServerInfo, @Nullable Long maxConcurrentRequests,
          @Nullable UpstreamTlsContext tlsContext, Map<String, Struct> filterMetadata,
          OutlierDetection outlierDetection) {
        return new DiscoveryMechanism(cluster, Type.EDS, edsServiceName, null, lrsServerInfo,
            maxConcurrentRequests, tlsContext, filterMetadata, outlierDetection);
      }

      static DiscoveryMechanism forLogicalDns(String cluster, String dnsHostName,
          @Nullable ServerInfo lrsServerInfo, @Nullable Long maxConcurrentRequests,
          @Nullable UpstreamTlsContext tlsContext, Map<String, Struct> filterMetadata) {
        return new DiscoveryMechanism(cluster, Type.LOGICAL_DNS, null, dnsHostName,
            lrsServerInfo, maxConcurrentRequests, tlsContext, filterMetadata, null);
      }

      @Override
      public int hashCode() {
        return Objects.hash(cluster, type, lrsServerInfo, maxConcurrentRequests, tlsContext,
            edsServiceName, dnsHostName, filterMetadata, outlierDetection);
      }

      @Override
      public boolean equals(Object o) {
        if (this == o) {
          return true;
        }
        if (o == null || getClass() != o.getClass()) {
          return false;
        }
        DiscoveryMechanism that = (DiscoveryMechanism) o;
        return cluster.equals(that.cluster)
            && type == that.type
            && Objects.equals(edsServiceName, that.edsServiceName)
            && Objects.equals(dnsHostName, that.dnsHostName)
            && Objects.equals(lrsServerInfo, that.lrsServerInfo)
            && Objects.equals(maxConcurrentRequests, that.maxConcurrentRequests)
            && Objects.equals(tlsContext, that.tlsContext)
            && Objects.equals(filterMetadata, that.filterMetadata)
            && Objects.equals(outlierDetection, that.outlierDetection);
      }

      @Override
      public String toString() {
        MoreObjects.ToStringHelper toStringHelper =
            MoreObjects.toStringHelper(this)
                .add("cluster", cluster)
                .add("type", type)
                .add("edsServiceName", edsServiceName)
                .add("dnsHostName", dnsHostName)
                .add("lrsServerInfo", lrsServerInfo)
                // Exclude tlsContext as its string representation is cumbersome.
                .add("maxConcurrentRequests", maxConcurrentRequests)
                .add("filterMetadata", filterMetadata)
                // Exclude outlierDetection as its string representation is long.
                ;
        return toStringHelper.toString();
      }
    }
  }
}

1	/*
2	* Copyright 2020 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 static com.google.common.base.Preconditions.checkNotNull;
20
21	import com.google.common.base.MoreObjects;
22	import com.google.common.collect.ImmutableMap;
23	import com.google.protobuf.Struct;
24	import io.grpc.Internal;
25	import io.grpc.LoadBalancer;
26	import io.grpc.LoadBalancer.Helper;
27	import io.grpc.LoadBalancerProvider;
28	import io.grpc.NameResolver.ConfigOrError;
29	import io.grpc.Status;
30	import io.grpc.xds.EnvoyServerProtoData.OutlierDetection;
31	import io.grpc.xds.EnvoyServerProtoData.UpstreamTlsContext;
32	import io.grpc.xds.client.Bootstrapper.ServerInfo;
33	import java.util.List;
34	import java.util.Map;
35	import java.util.Objects;
36	import javax.annotation.Nullable;
37
38	/**
39	* The provider for the cluster_resolver load balancing policy. This class should not be directly
40	* referenced in code. The policy should be accessed through
41	* {@link io.grpc.LoadBalancerRegistry#getProvider} with the name "cluster_resolver_experimental".
42	*/
43	@Internal
44	public final class ClusterResolverLoadBalancerProvider extends LoadBalancerProvider {	1✔
45
46	@Override
47	public boolean isAvailable() {
48	return true;	1✔
49	}
50
51	@Override
52	public int getPriority() {
53	return 5;	1✔
54	}
55
56	@Override
57	public String getPolicyName() {
58	return XdsLbPolicies.CLUSTER_RESOLVER_POLICY_NAME;	1✔
59	}
60
61	@Override
62	public ConfigOrError parseLoadBalancingPolicyConfig(Map<String, ?> rawLoadBalancingPolicyConfig) {
63	return ConfigOrError.fromError(	×
64	Status.INTERNAL.withDescription(getPolicyName() + " cannot be used from service config"));	×
65	}
66
67	@Override
68	public LoadBalancer newLoadBalancer(Helper helper) {
69	return new ClusterResolverLoadBalancer(helper);	1✔
70	}
71
72	static final class ClusterResolverConfig {
73	// Ordered list of clusters to be resolved.
74	final List<DiscoveryMechanism> discoveryMechanisms;
75	// GracefulSwitch configuration
76	final Object lbConfig;
77	private final boolean isHttp11ProxyAvailable;
78
79	ClusterResolverConfig(List<DiscoveryMechanism> discoveryMechanisms, Object lbConfig,
80	boolean isHttp11ProxyAvailable) {	1✔
81	this.discoveryMechanisms = checkNotNull(discoveryMechanisms, "discoveryMechanisms");	1✔
82	this.lbConfig = checkNotNull(lbConfig, "lbConfig");	1✔
83	this.isHttp11ProxyAvailable = isHttp11ProxyAvailable;	1✔
84	}	1✔
85
86	boolean isHttp11ProxyAvailable() {
87	return isHttp11ProxyAvailable;	1✔
88	}
89
90	@Override
91	public int hashCode() {
92	return Objects.hash(discoveryMechanisms, lbConfig);	×
93	}
94
95	@Override
96	public boolean equals(Object o) {
97	if (this == o) {	×
98	return true;	×
99	}
100	if (o == null \|\| getClass() != o.getClass()) {	×
101	return false;	×
102	}
103	ClusterResolverConfig that = (ClusterResolverConfig) o;	×
104	return discoveryMechanisms.equals(that.discoveryMechanisms)	×
105	&& lbConfig.equals(that.lbConfig);	×
106	}
107
108	@Override
109	public String toString() {
110	return MoreObjects.toStringHelper(this)	×
111	.add("discoveryMechanisms", discoveryMechanisms)	×
112	.add("lbConfig", lbConfig)	×
113	.toString();	×
114	}
115
116	// Describes the mechanism for a specific cluster.
117	static final class DiscoveryMechanism {
118	// Name of the cluster to resolve.
119	final String cluster;
120	// Type of the cluster.
121	final Type type;
122	// Load reporting server info. Null if not enabled.
123	@Nullable
124	final ServerInfo lrsServerInfo;
125	// Cluster-level max concurrent request threshold. Null if not specified.
126	@Nullable
127	final Long maxConcurrentRequests;
128	// TLS context for connections to endpoints in the cluster.
129	@Nullable
130	final UpstreamTlsContext tlsContext;
131	// Resource name for resolving endpoints via EDS. Only valid for EDS clusters.
132	@Nullable
133	final String edsServiceName;
134	// Hostname for resolving endpoints via DNS. Only valid for LOGICAL_DNS clusters.
135	@Nullable
136	final String dnsHostName;
137	@Nullable
138	final OutlierDetection outlierDetection;
139	final Map<String, Struct> filterMetadata;
140
141	enum Type {	1✔
142	EDS,	1✔
143	LOGICAL_DNS,	1✔
144	}
145
146	private DiscoveryMechanism(String cluster, Type type, @Nullable String edsServiceName,
147	@Nullable String dnsHostName, @Nullable ServerInfo lrsServerInfo,
148	@Nullable Long maxConcurrentRequests, @Nullable UpstreamTlsContext tlsContext,
149	Map<String, Struct> filterMetadata, @Nullable OutlierDetection outlierDetection) {	1✔
150	this.cluster = checkNotNull(cluster, "cluster");	1✔
151	this.type = checkNotNull(type, "type");	1✔
152	this.edsServiceName = edsServiceName;	1✔
153	this.dnsHostName = dnsHostName;	1✔
154	this.lrsServerInfo = lrsServerInfo;	1✔
155	this.maxConcurrentRequests = maxConcurrentRequests;	1✔
156	this.tlsContext = tlsContext;	1✔
157	this.filterMetadata = ImmutableMap.copyOf(checkNotNull(filterMetadata, "filterMetadata"));	1✔
158	this.outlierDetection = outlierDetection;	1✔
159	}	1✔
160
161	static DiscoveryMechanism forEds(String cluster, @Nullable String edsServiceName,
162	@Nullable ServerInfo lrsServerInfo, @Nullable Long maxConcurrentRequests,
163	@Nullable UpstreamTlsContext tlsContext, Map<String, Struct> filterMetadata,
164	OutlierDetection outlierDetection) {
165	return new DiscoveryMechanism(cluster, Type.EDS, edsServiceName, null, lrsServerInfo,	1✔
166	maxConcurrentRequests, tlsContext, filterMetadata, outlierDetection);
167	}
168
169	static DiscoveryMechanism forLogicalDns(String cluster, String dnsHostName,
170	@Nullable ServerInfo lrsServerInfo, @Nullable Long maxConcurrentRequests,
171	@Nullable UpstreamTlsContext tlsContext, Map<String, Struct> filterMetadata) {
172	return new DiscoveryMechanism(cluster, Type.LOGICAL_DNS, null, dnsHostName,	1✔
173	lrsServerInfo, maxConcurrentRequests, tlsContext, filterMetadata, null);
174	}
175
176	@Override
177	public int hashCode() {
178	return Objects.hash(cluster, type, lrsServerInfo, maxConcurrentRequests, tlsContext,	×
179	edsServiceName, dnsHostName, filterMetadata, outlierDetection);
180	}
181
182	@Override
183	public boolean equals(Object o) {
184	if (this == o) {	×
185	return true;	×
186	}
187	if (o == null \|\| getClass() != o.getClass()) {	×
188	return false;	×
189	}
190	DiscoveryMechanism that = (DiscoveryMechanism) o;	×
191	return cluster.equals(that.cluster)	×
192	&& type == that.type
193	&& Objects.equals(edsServiceName, that.edsServiceName)	×
194	&& Objects.equals(dnsHostName, that.dnsHostName)	×
195	&& Objects.equals(lrsServerInfo, that.lrsServerInfo)	×
196	&& Objects.equals(maxConcurrentRequests, that.maxConcurrentRequests)	×
197	&& Objects.equals(tlsContext, that.tlsContext)	×
198	&& Objects.equals(filterMetadata, that.filterMetadata)	×
199	&& Objects.equals(outlierDetection, that.outlierDetection);	×
200	}
201
202	@Override
203	public String toString() {
204	MoreObjects.ToStringHelper toStringHelper =	×
205	MoreObjects.toStringHelper(this)	×
206	.add("cluster", cluster)	×
207	.add("type", type)	×
208	.add("edsServiceName", edsServiceName)	×
209	.add("dnsHostName", dnsHostName)	×
210	.add("lrsServerInfo", lrsServerInfo)	×
211	// Exclude tlsContext as its string representation is cumbersome.
212	.add("maxConcurrentRequests", maxConcurrentRequests)	×
213	.add("filterMetadata", filterMetadata)	×
214	// Exclude outlierDetection as its string representation is long.
215	;
216	return toStringHelper.toString();	×
217	}
218	}
219	}
220	}

grpc / grpc-java / #19715

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous