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122 changes: 122 additions & 0 deletions
122
server/src/main/java/org/elasticsearch/cluster/metadata/ItemUsage.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| /* | ||
| * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| * or more contributor license agreements. Licensed under the Elastic License | ||
| * 2.0 and the Server Side Public License, v 1; you may not use this file except | ||
| * in compliance with, at your election, the Elastic License 2.0 or the Server | ||
| * Side Public License, v 1. | ||
| */ | ||
|
|
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| package org.elasticsearch.cluster.metadata; | ||
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| import org.elasticsearch.common.Strings; | ||
| import org.elasticsearch.common.io.stream.StreamInput; | ||
| import org.elasticsearch.common.io.stream.StreamOutput; | ||
| import org.elasticsearch.common.io.stream.Writeable; | ||
| import org.elasticsearch.common.xcontent.ToXContentObject; | ||
| import org.elasticsearch.common.xcontent.XContentBuilder; | ||
| import org.elasticsearch.core.Nullable; | ||
|
|
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| import java.io.IOException; | ||
| import java.util.Collection; | ||
| import java.util.HashSet; | ||
| import java.util.Objects; | ||
| import java.util.Set; | ||
|
|
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| /** | ||
| * A class encapsulating the usage of a particular "thing" by something else | ||
| */ | ||
| public class ItemUsage implements Writeable, ToXContentObject { | ||
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| private final Set<String> indices; | ||
| private final Set<String> dataStreams; | ||
| private final Set<String> composableTemplates; | ||
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| /** | ||
| * Create a new usage, a {@code null} value indicates that the item *cannot* be used by the | ||
| * thing, otherwise use an empty collection to indicate no usage. | ||
| */ | ||
| public ItemUsage(@Nullable Collection<String> indices, | ||
| @Nullable Collection<String> dataStreams, | ||
| @Nullable Collection<String> composableTemplates) { | ||
| this.indices = indices == null ? null : new HashSet<>(indices); | ||
| this.dataStreams = dataStreams == null ? null : new HashSet<>(dataStreams); | ||
| this.composableTemplates = composableTemplates == null ? null : new HashSet<>(composableTemplates); | ||
| } | ||
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| public ItemUsage(StreamInput in) throws IOException { | ||
| if (in.readBoolean()) { | ||
| this.indices = in.readSet(StreamInput::readString); | ||
| } else { | ||
| this.indices = null; | ||
| } | ||
| if (in.readBoolean()) { | ||
| this.dataStreams = in.readSet(StreamInput::readString); | ||
| } else { | ||
| this.dataStreams = null; | ||
| } | ||
| if (in.readBoolean()) { | ||
| this.composableTemplates = in.readSet(StreamInput::readString); | ||
| } else { | ||
| this.composableTemplates = null; | ||
| } | ||
| } | ||
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| public Set<String> getIndices() { | ||
| return indices; | ||
| } | ||
|
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| public Set<String> getDataStreams() { | ||
| return dataStreams; | ||
| } | ||
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| public Set<String> getComposableTemplates() { | ||
| return composableTemplates; | ||
| } | ||
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| builder.startObject(); | ||
| if (this.indices != null) { | ||
| builder.field("indices", this.indices); | ||
| } | ||
| if (this.dataStreams != null) { | ||
| builder.field("data_streams", this.dataStreams); | ||
| } | ||
| if (this.composableTemplates != null) { | ||
| builder.field("composable_templates", this.composableTemplates); | ||
| } | ||
| builder.endObject(); | ||
| return builder; | ||
| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeOptionalStringCollection(this.indices); | ||
| out.writeOptionalStringCollection(this.dataStreams); | ||
| out.writeOptionalStringCollection(this.composableTemplates); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(this.indices, this.dataStreams, this.composableTemplates); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| if (obj == null) { | ||
| return false; | ||
| } | ||
| if (getClass() != obj.getClass()) { | ||
| return false; | ||
| } | ||
| ItemUsage other = (ItemUsage) obj; | ||
| return Objects.equals(indices, other.indices) && | ||
| Objects.equals(dataStreams, other.dataStreams) && | ||
| Objects.equals(composableTemplates, other.composableTemplates); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return Strings.toString(this); | ||
| } | ||
| } |
47 changes: 47 additions & 0 deletions
47
server/src/test/java/org/elasticsearch/cluster/metadata/ItemUsageTests.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| /* | ||
| * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| * or more contributor license agreements. Licensed under the Elastic License | ||
| * 2.0 and the Server Side Public License, v 1; you may not use this file except | ||
| * in compliance with, at your election, the Elastic License 2.0 or the Server | ||
| * Side Public License, v 1. | ||
| */ | ||
|
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| package org.elasticsearch.cluster.metadata; | ||
|
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| import org.elasticsearch.Version; | ||
| import org.elasticsearch.core.Nullable; | ||
| import org.elasticsearch.test.AbstractWireTestCase; | ||
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| import java.io.IOException; | ||
| import java.util.List; | ||
|
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| public class ItemUsageTests extends AbstractWireTestCase<ItemUsage> { | ||
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| public static ItemUsage randomUsage() { | ||
| return new ItemUsage(randomStringList(), randomStringList(), randomStringList()); | ||
| } | ||
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| @Nullable | ||
| private static List<String> randomStringList() { | ||
| if (randomBoolean()) { | ||
| return null; | ||
| } else { | ||
| return randomList(0, 1, () -> randomAlphaOfLengthBetween(2, 10)); | ||
| } | ||
| } | ||
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| @Override | ||
| protected ItemUsage createTestInstance() { | ||
| return randomUsage(); | ||
| } | ||
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| @Override | ||
| protected ItemUsage copyInstance(ItemUsage instance, Version version) throws IOException { | ||
| return new ItemUsage(instance.getIndices(), instance.getDataStreams(), instance.getComposableTemplates()); | ||
| } | ||
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| @Override | ||
| protected ItemUsage mutateInstance(ItemUsage instance) throws IOException { | ||
| return super.mutateInstance(instance); | ||
| } | ||
| } |
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