org.elasticsearch.action.admin.indices.template.get.GetIndexTemplatesResponse Maven / Gradle / Ivy

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/*
 * 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.
 */
package org.elasticsearch.action.admin.indices.template.get;

import org.elasticsearch.action.ActionResponse;
import org.elasticsearch.cluster.metadata.IndexTemplateMetadata;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.xcontent.ToXContent;
import org.elasticsearch.xcontent.ToXContentObject;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentParser;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import static java.util.Collections.singletonMap;
import static org.elasticsearch.rest.BaseRestHandler.DEFAULT_INCLUDE_TYPE_NAME_POLICY;
import static org.elasticsearch.rest.BaseRestHandler.INCLUDE_TYPE_NAME_PARAMETER;

public class GetIndexTemplatesResponse extends ActionResponse implements ToXContentObject {

    private final List indexTemplates;

    public GetIndexTemplatesResponse(StreamInput in) throws IOException {
        super(in);
        int size = in.readVInt();
        indexTemplates = new ArrayList<>();
        for (int i = 0; i < size; i++) {
            indexTemplates.add(0, IndexTemplateMetadata.readFrom(in));
        }
    }

    public GetIndexTemplatesResponse(List indexTemplates) {
        this.indexTemplates = indexTemplates;
    }

    public List getIndexTemplates() {
        return indexTemplates;
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        out.writeVInt(indexTemplates.size());
        for (IndexTemplateMetadata indexTemplate : indexTemplates) {
            indexTemplate.writeTo(out);
        }
    }

    @Override
    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
        params = new ToXContent.DelegatingMapParams(singletonMap("reduce_mappings", "true"), params);

        boolean includeTypeName = params.paramAsBoolean(INCLUDE_TYPE_NAME_PARAMETER, DEFAULT_INCLUDE_TYPE_NAME_POLICY);

        builder.startObject();
        for (IndexTemplateMetadata indexTemplateMetadata : getIndexTemplates()) {
            if (includeTypeName) {
                IndexTemplateMetadata.Builder.toXContentWithTypes(indexTemplateMetadata, builder, params);
            } else {
                IndexTemplateMetadata.Builder.toXContent(indexTemplateMetadata, builder, params);
            }
        }
        builder.endObject();
        return builder;
    }

    public static GetIndexTemplatesResponse fromXContent(XContentParser parser) throws IOException {
        final List templates = new ArrayList<>();
        for (XContentParser.Token token = parser.nextToken(); token != XContentParser.Token.END_OBJECT; token = parser.nextToken()) {
            if (token == XContentParser.Token.FIELD_NAME) {
                final IndexTemplateMetadata templateMetadata = IndexTemplateMetadata.Builder.fromXContent(parser, parser.currentName());
                templates.add(templateMetadata);
            }
        }
        return new GetIndexTemplatesResponse(templates);
    }
}