1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.federation.sourceref;
import com.yahoo.component.ComponentSpecification;
import com.yahoo.processing.request.Properties;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Maps a source reference to search chain invocation specs.
*
* @author Tony Vaagenes
*/
public class SourceRefResolver {
private final SearchChainResolver searchChainResolver;
private final Map<String, List<String>> schema2Clusters;
public SourceRefResolver(SearchChainResolver searchChainResolver, Map<String, List<String>> schema2Clusters) {
this.searchChainResolver = searchChainResolver;
this.schema2Clusters = schema2Clusters;
}
public List<ResolveResult> resolve(ComponentSpecification sourceRef, Properties sourceToProviderMap) {
ResolveResult searchChainResolveResult = searchChainResolver.resolve(sourceRef, sourceToProviderMap);
if (searchChainResolveResult.invocationSpec() == null) {
return resolveClustersWithDocument(sourceRef, sourceToProviderMap);
}
return List.of(searchChainResolveResult);
}
private List<ResolveResult> resolveClustersWithDocument(ComponentSpecification sourceRef, Properties sourceToProviderMap) {
if (hasOnlyName(sourceRef)) {
List<ResolveResult> clusterSearchChains = new ArrayList<>();
List<String> clusters = schema2Clusters.getOrDefault(sourceRef.getName(), List.of());
for (String cluster : clusters) {
clusterSearchChains.add(resolveClusterSearchChain(cluster, sourceRef, sourceToProviderMap));
}
if ( ! clusterSearchChains.isEmpty())
return clusterSearchChains;
}
return List.of(new ResolveResult(createForMissingSourceRef(sourceRef)));
}
static String createForMissingSourceRef(ComponentSpecification source) {
return "Could not resolve source ref '" + source + "'.";
}
private ResolveResult resolveClusterSearchChain(String cluster,
ComponentSpecification sourceRef,
Properties sourceToProviderMap) {
var resolveResult = searchChainResolver.resolve(new ComponentSpecification(cluster), sourceToProviderMap);
if (resolveResult.invocationSpec() == null) {
return new ResolveResult("Failed to resolve cluster search chain '" + cluster +
"' when using source ref '" + sourceRef + "' as a document name.");
}
return resolveResult;
}
private boolean hasOnlyName(ComponentSpecification sourceSpec) {
return new ComponentSpecification(sourceSpec.getName()).equals(sourceSpec);
}
}
|
