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Split the cluster state remote global metadata file to metadata attri…
…bute files Signed-off-by: Shivansh Arora <hishiv@amazon.com>
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147 changes: 147 additions & 0 deletions
147
server/src/main/java/org/opensearch/cluster/metadata/TemplatesMetadata.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,147 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.cluster.metadata; | ||
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| import org.opensearch.cluster.AbstractDiffable; | ||
| import org.opensearch.cluster.coordination.CoordinationMetadata; | ||
| import org.opensearch.common.annotation.PublicApi; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.core.common.io.stream.StreamOutput; | ||
| import org.opensearch.core.xcontent.ToXContentFragment; | ||
| import org.opensearch.core.xcontent.XContentBuilder; | ||
| import org.opensearch.core.xcontent.XContentParser; | ||
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| import java.io.IOException; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
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| public class TemplatesMetadata extends AbstractDiffable<TemplatesMetadata> implements ToXContentFragment { | ||
| public static TemplatesMetadata EMPTY_METADATA = builder().build(); | ||
| private final Map<String, IndexTemplateMetadata> templates; | ||
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| public TemplatesMetadata() { | ||
| this(Collections.emptyMap()); | ||
| } | ||
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| public TemplatesMetadata(Map<String, IndexTemplateMetadata> templates) { | ||
| this.templates = Collections.unmodifiableMap(templates); | ||
| } | ||
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| public static Builder builder() { | ||
| return new Builder(); | ||
| } | ||
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| public Map<String, IndexTemplateMetadata> getTemplates() { | ||
| return this.templates; | ||
| } | ||
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| public static TemplatesMetadata fromXContent(XContentParser parser) throws IOException { | ||
| return Builder.fromXContent(parser); | ||
| } | ||
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| Builder.toXContent(this, builder, params); | ||
| return builder; | ||
| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeVInt(templates.size()); | ||
| for (final IndexTemplateMetadata cursor : templates.values()) { | ||
| cursor.writeTo(out); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) return true; | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
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| TemplatesMetadata that = (TemplatesMetadata) o; | ||
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| return Objects.equals(templates, that.templates); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return templates != null ? templates.hashCode() : 0; | ||
| } | ||
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| public static class Builder { | ||
| private final Map<String, IndexTemplateMetadata> templates; | ||
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| public Builder() { | ||
| this.templates = new HashMap<String, IndexTemplateMetadata>(); | ||
| } | ||
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| public Builder(Map<String, IndexTemplateMetadata> templates) { | ||
| this.templates = templates; | ||
| } | ||
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| public Builder put(IndexTemplateMetadata.Builder template) { | ||
| return put(template.build()); | ||
| } | ||
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| public Builder put(IndexTemplateMetadata template) { | ||
| templates.put(template.name(), template); | ||
| return this; | ||
| } | ||
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| public Builder removeTemplate(String templateName) { | ||
| templates.remove(templateName); | ||
| return this; | ||
| } | ||
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| public Builder templates(Map<String, IndexTemplateMetadata> templates) { | ||
| this.templates.putAll(templates); | ||
| return this; | ||
| } | ||
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| public TemplatesMetadata build() { | ||
| return new TemplatesMetadata(templates); | ||
| } | ||
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| public static void toXContent(TemplatesMetadata templates, XContentBuilder builder, Params params) throws IOException { | ||
| // builder.startObject("templates-metadata"); | ||
| for(IndexTemplateMetadata cursor : templates.getTemplates().values()) { | ||
| IndexTemplateMetadata.Builder.toXContentWithTypes(cursor, builder, params); | ||
| } | ||
| // builder.endObject(); | ||
| } | ||
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| public static TemplatesMetadata fromXContent(XContentParser parser) throws IOException { | ||
| Builder builder = new Builder(); | ||
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| // we might get here after the templates-metadata element, or on a fresh parser | ||
| XContentParser.Token token = parser.currentToken(); | ||
| String currentFieldName = parser.currentName(); | ||
| if (currentFieldName == null) { | ||
| token = parser.nextToken(); | ||
| if (token == XContentParser.Token.START_OBJECT) { | ||
| // move to the field name | ||
| token = parser.nextToken(); | ||
| if (token == XContentParser.Token.FIELD_NAME) { | ||
| // move to the next object | ||
| token = parser.nextToken(); | ||
| } | ||
| } | ||
| currentFieldName = parser.currentName(); | ||
| } | ||
| if (currentFieldName != null && token == XContentParser.Token.START_OBJECT) { | ||
| while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) { | ||
| builder.put(IndexTemplateMetadata.Builder.fromXContent(parser, parser.currentName())); | ||
| } | ||
| } | ||
| return builder.build(); | ||
| } | ||
| } | ||
| } |
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