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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.action.update;

import java.util.Arrays;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.support.ActiveShardCount;
import org.elasticsearch.action.support.WriteRequest;
import org.elasticsearch.action.support.replication.ReplicationRequest;
import org.elasticsearch.action.support.single.instance.InstanceShardOperationRequest;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.lucene.uid.Versions;
import org.elasticsearch.common.xcontent.NamedXContentRegistry;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentHelper;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.VersionType;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;

import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.elasticsearch.action.ValidateActions.addValidationError;

public class UpdateRequest extends InstanceShardOperationRequest
        implements DocWriteRequest, WriteRequest, ToXContentObject {

    private String type;
    private String id;
    @Nullable
    private String routing;

    @Nullable
    private String parent;

    @Nullable
    Script script;

    private String[] fields;
    private FetchSourceContext fetchSourceContext;

    private long version = Versions.MATCH_ANY;
    private VersionType versionType = VersionType.INTERNAL;
    private int retryOnConflict = 0;

    private RefreshPolicy refreshPolicy = RefreshPolicy.NONE;

    private ActiveShardCount waitForActiveShards = ActiveShardCount.DEFAULT;

    private IndexRequest upsertRequest;

    private boolean scriptedUpsert = false;
    private boolean docAsUpsert = false;
    private boolean detectNoop = true;

    @Nullable
    private IndexRequest doc;

    public UpdateRequest() {

    }

    public UpdateRequest(String index, String type, String id) {
        super(index);
        this.type = type;
        this.id = id;
    }

    @Override
    public ActionRequestValidationException validate() {
        ActionRequestValidationException validationException = super.validate();
        if (version != Versions.MATCH_ANY && upsertRequest != null) {
            validationException = addValidationError("can't provide both upsert request and a version", validationException);
        }
        if(upsertRequest != null && upsertRequest.version() != Versions.MATCH_ANY) {
            validationException = addValidationError("can't provide version in upsert request", validationException);
        }
        if (type == null) {
            validationException = addValidationError("type is missing", validationException);
        }
        if (id == null) {
            validationException = addValidationError("id is missing", validationException);
        }

        if (versionType != VersionType.INTERNAL) {
            validationException = addValidationError("version type [" + versionType + "] is not supported by the update API",
                    validationException);
        } else {

            if (version != Versions.MATCH_ANY && retryOnConflict > 0) {
                validationException = addValidationError("can't provide both retry_on_conflict and a specific version", validationException);
            }

            if (!versionType.validateVersionForWrites(version)) {
                validationException = addValidationError("illegal version value [" + version + "] for version type [" + versionType.name() + "]", validationException);
            }
        }

        if (script == null && doc == null) {
            validationException = addValidationError("script or doc is missing", validationException);
        }
        if (script != null && doc != null) {
            validationException = addValidationError("can't provide both script and doc", validationException);
        }
        if (doc == null && docAsUpsert) {
            validationException = addValidationError("doc must be specified if doc_as_upsert is enabled", validationException);
        }
        return validationException;
    }

    /**
     * The type of the indexed document.
     */
    @Override
    public String type() {
        return type;
    }

    /**
     * Sets the type of the indexed document.
     */
    public UpdateRequest type(String type) {
        this.type = type;
        return this;
    }

    /**
     * The id of the indexed document.
     */
    @Override
    public String id() {
        return id;
    }

    /**
     * Sets the id of the indexed document.
     */
    public UpdateRequest id(String id) {
        this.id = id;
        return this;
    }

    /**
     * Controls the shard routing of the request. Using this value to hash the shard
     * and not the id.
     */
    @Override
    public UpdateRequest routing(String routing) {
        if (routing != null && routing.length() == 0) {
            this.routing = null;
        } else {
            this.routing = routing;
        }
        return this;
    }

    /**
     * Controls the shard routing of the request. Using this value to hash the shard
     * and not the id.
     */
    @Override
    public String routing() {
        return this.routing;
    }

    /**
     * The parent id is used for the upsert request.
     */
    public UpdateRequest parent(String parent) {
        this.parent = parent;
        return this;
    }

    public String parent() {
        return parent;
    }

    public ShardId getShardId() {
        return this.shardId;
    }

    public Script script() {
        return this.script;
    }

    /**
     * The script to execute. Note, make sure not to send different script each times and instead
     * use script params if possible with the same (automatically compiled) script.
     */
    public UpdateRequest script(Script script) {
        this.script = script;
        return this;
    }

    /**
     * @deprecated Use {@link #script()} instead
     */
    @Deprecated
    public String scriptString() {
        return this.script == null ? null : this.script.getIdOrCode();
    }

    /**
     * @deprecated Use {@link #script()} instead
     */
    @Deprecated
    public ScriptType scriptType() {
        return this.script == null ? null : this.script.getType();
    }

    /**
     * @deprecated Use {@link #script()} instead
     */
    @Deprecated
    public Map scriptParams() {
        return this.script == null ? null : this.script.getParams();
    }

    /**
     * The script to execute. Note, make sure not to send different script each
     * times and instead use script params if possible with the same
     * (automatically compiled) script.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest script(String script, ScriptType scriptType) {
        updateOrCreateScript(script, scriptType, null, null);
        return this;
    }

    /**
     * The script to execute. Note, make sure not to send different script each
     * times and instead use script params if possible with the same
     * (automatically compiled) script.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest script(String script) {
        updateOrCreateScript(script, ScriptType.INLINE, null, null);
        return this;
    }

    /**
     * The language of the script to execute.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest scriptLang(String scriptLang) {
        updateOrCreateScript(null, null, scriptLang, null);
        return this;
    }

    /**
     * @deprecated Use {@link #script()} instead
     */
    @Deprecated
    public String scriptLang() {
        return script == null ? null : script.getLang();
    }

    /**
     * Add a script parameter.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest addScriptParam(String name, Object value) {
        Script script = script();
        if (script == null) {
            HashMap scriptParams = new HashMap<>();
            scriptParams.put(name, value);
            updateOrCreateScript(null, null, null, scriptParams);
        } else {
            Map scriptParams = script.getParams();
            if (scriptParams == null) {
                scriptParams = new HashMap<>();
                scriptParams.put(name, value);
                updateOrCreateScript(null, null, null, scriptParams);
            } else {
                scriptParams.put(name, value);
            }
        }
        return this;
    }

    /**
     * Sets the script parameters to use with the script.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest scriptParams(Map scriptParams) {
        updateOrCreateScript(null, null, null, scriptParams);
        return this;
    }

    private void updateOrCreateScript(String scriptContent, ScriptType type, String lang, Map params) {
        Script script = script();
        if (script == null) {
            script = new Script(type == null ? ScriptType.INLINE : type, lang, scriptContent == null ? "" : scriptContent, params);
        } else {
            String newScriptContent = scriptContent == null ? script.getIdOrCode() : scriptContent;
            ScriptType newScriptType = type == null ? script.getType() : type;
            String newScriptLang = lang == null ? script.getLang() : lang;
            Map newScriptParams = params == null ? script.getParams() : params;
            script = new Script(newScriptType, newScriptLang, newScriptContent, newScriptParams);
        }
        script(script);
    }

    /**
     * The script to execute. Note, make sure not to send different script each
     * times and instead use script params if possible with the same
     * (automatically compiled) script.
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest script(String script, ScriptType scriptType, @Nullable Map scriptParams) {
        this.script = new Script(scriptType, Script.DEFAULT_SCRIPT_LANG, script, scriptParams);
        return this;
    }

    /**
     * The script to execute. Note, make sure not to send different script each
     * times and instead use script params if possible with the same
     * (automatically compiled) script.
     *
     * @param script
     *            The script to execute
     * @param scriptLang
     *            The script language
     * @param scriptType
     *            The script type
     * @param scriptParams
     *            The script parameters
     *
     * @deprecated Use {@link #script(Script)} instead
     */
    @Deprecated
    public UpdateRequest script(String script, @Nullable String scriptLang, ScriptType scriptType,
            @Nullable Map scriptParams) {
        this.script = new Script(scriptType, scriptLang, script, scriptParams);
        return this;
    }

    /**
     * Explicitly specify the fields that will be returned. By default, nothing is returned.
     * @deprecated Use {@link UpdateRequest#fetchSource(String[], String[])} instead
     */
    @Deprecated
    public UpdateRequest fields(String... fields) {
        this.fields = fields;
        return this;
    }

    /**
     * Indicate that _source should be returned with every hit, with an
     * "include" and/or "exclude" set which can include simple wildcard
     * elements.
     *
     * @param include
     *            An optional include (optionally wildcarded) pattern to filter
     *            the returned _source
     * @param exclude
     *            An optional exclude (optionally wildcarded) pattern to filter
     *            the returned _source
     */
    public UpdateRequest fetchSource(@Nullable String include, @Nullable String exclude) {
        FetchSourceContext context = this.fetchSourceContext == null ? FetchSourceContext.FETCH_SOURCE : this.fetchSourceContext;
        this.fetchSourceContext = new FetchSourceContext(context.fetchSource(), new String[] {include}, new String[]{exclude});
        return this;
    }

    /**
     * Indicate that _source should be returned, with an
     * "include" and/or "exclude" set which can include simple wildcard
     * elements.
     *
     * @param includes
     *            An optional list of include (optionally wildcarded) pattern to
     *            filter the returned _source
     * @param excludes
     *            An optional list of exclude (optionally wildcarded) pattern to
     *            filter the returned _source
     */
    public UpdateRequest fetchSource(@Nullable String[] includes, @Nullable String[] excludes) {
        FetchSourceContext context = this.fetchSourceContext == null ? FetchSourceContext.FETCH_SOURCE : this.fetchSourceContext;
        this.fetchSourceContext = new FetchSourceContext(context.fetchSource(), includes, excludes);
        return this;
    }

    /**
     * Indicates whether the response should contain the updated _source.
     */
    public UpdateRequest fetchSource(boolean fetchSource) {
        FetchSourceContext context = this.fetchSourceContext == null ? FetchSourceContext.FETCH_SOURCE : this.fetchSourceContext;
        this.fetchSourceContext = new FetchSourceContext(fetchSource, context.includes(), context.excludes());
        return this;
    }

    /**
     * Explicitly set the fetch source context for this request
     */
    public UpdateRequest fetchSource(FetchSourceContext context) {
        this.fetchSourceContext = context;
        return this;
    }


    /**
     * Get the fields to be returned.
     * @deprecated Use {@link UpdateRequest#fetchSource()} instead
     */
    @Deprecated
    public String[] fields() {
        return fields;
    }

    /**
     * Gets the {@link FetchSourceContext} which defines how the _source should
     * be fetched.
     */
    public FetchSourceContext fetchSource() {
        return fetchSourceContext;
    }

    /**
     * Sets the number of retries of a version conflict occurs because the document was updated between
     * getting it and updating it. Defaults to 0.
     */
    public UpdateRequest retryOnConflict(int retryOnConflict) {
        this.retryOnConflict = retryOnConflict;
        return this;
    }

    public int retryOnConflict() {
        return this.retryOnConflict;
    }

    @Override
    public UpdateRequest version(long version) {
        this.version = version;
        return this;
    }

    @Override
    public long version() {
        return this.version;
    }

    @Override
    public UpdateRequest versionType(VersionType versionType) {
        this.versionType = versionType;
        return this;
    }

    @Override
    public VersionType versionType() {
        return this.versionType;
    }

    @Override
    public OpType opType() {
        return OpType.UPDATE;
    }

    @Override
    public UpdateRequest setRefreshPolicy(RefreshPolicy refreshPolicy) {
        this.refreshPolicy = refreshPolicy;
        return this;
    }

    @Override
    public RefreshPolicy getRefreshPolicy() {
        return refreshPolicy;
    }

    public ActiveShardCount waitForActiveShards() {
        return this.waitForActiveShards;
    }

    /**
     * Sets the number of shard copies that must be active before proceeding with the write.
     * See {@link ReplicationRequest#waitForActiveShards(ActiveShardCount)} for details.
     */
    public UpdateRequest waitForActiveShards(ActiveShardCount waitForActiveShards) {
        this.waitForActiveShards = waitForActiveShards;
        return this;
    }

    /**
     * A shortcut for {@link #waitForActiveShards(ActiveShardCount)} where the numerical
     * shard count is passed in, instead of having to first call {@link ActiveShardCount#from(int)}
     * to get the ActiveShardCount.
     */
    public UpdateRequest waitForActiveShards(final int waitForActiveShards) {
        return waitForActiveShards(ActiveShardCount.from(waitForActiveShards));
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(IndexRequest doc) {
        this.doc = doc;
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(XContentBuilder source) {
        safeDoc().source(source);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(Map source) {
        safeDoc().source(source);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(Map source, XContentType contentType) {
        safeDoc().source(source, contentType);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(String source, XContentType xContentType) {
        safeDoc().source(source, xContentType);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(byte[] source, XContentType xContentType) {
        safeDoc().source(source, xContentType);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified.
     */
    public UpdateRequest doc(byte[] source, int offset, int length, XContentType xContentType) {
        safeDoc().source(source, offset, length, xContentType);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified, the doc provided
     * is a field and value pairs.
     */
    public UpdateRequest doc(Object... source) {
        safeDoc().source(source);
        return this;
    }

    /**
     * Sets the doc to use for updates when a script is not specified, the doc provided
     * is a field and value pairs.
     */
    public UpdateRequest doc(XContentType xContentType, Object... source) {
        safeDoc().source(xContentType, source);
        return this;
    }

    public IndexRequest doc() {
        return this.doc;
    }

    private IndexRequest safeDoc() {
        if (doc == null) {
            doc = new IndexRequest();
        }
        return doc;
    }

    /**
     * Sets the index request to be used if the document does not exists. Otherwise, a {@link org.elasticsearch.index.engine.DocumentMissingException}
     * is thrown.
     */
    public UpdateRequest upsert(IndexRequest upsertRequest) {
        this.upsertRequest = upsertRequest;
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(XContentBuilder source) {
        safeUpsertRequest().source(source);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(Map source) {
        safeUpsertRequest().source(source);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(Map source, XContentType contentType) {
        safeUpsertRequest().source(source, contentType);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(String source, XContentType xContentType) {
        safeUpsertRequest().source(source, xContentType);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(byte[] source, XContentType xContentType) {
        safeUpsertRequest().source(source, xContentType);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists.
     */
    public UpdateRequest upsert(byte[] source, int offset, int length, XContentType xContentType) {
        safeUpsertRequest().source(source, offset, length, xContentType);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists. The doc
     * includes field and value pairs.
     */
    public UpdateRequest upsert(Object... source) {
        safeUpsertRequest().source(source);
        return this;
    }

    /**
     * Sets the doc source of the update request to be used when the document does not exists. The doc
     * includes field and value pairs.
     */
    public UpdateRequest upsert(XContentType xContentType, Object... source) {
        safeUpsertRequest().source(xContentType, source);
        return this;
    }

    public IndexRequest upsertRequest() {
        return this.upsertRequest;
    }

    private IndexRequest safeUpsertRequest() {
        if (upsertRequest == null) {
            upsertRequest = new IndexRequest();
        }
        return upsertRequest;
    }

    /**
     * Should this update attempt to detect if it is a noop? Defaults to true.
     * @return this for chaining
     */
    public UpdateRequest detectNoop(boolean detectNoop) {
        this.detectNoop = detectNoop;
        return this;
    }

    /**
     * Should this update attempt to detect if it is a noop? Defaults to true.
     */
    public boolean detectNoop() {
        return detectNoop;
    }

    public UpdateRequest fromXContent(XContentParser parser) throws IOException {
        Script script = null;
        XContentParser.Token token = parser.nextToken();
        if (token == null) {
            return this;
        }
        String currentFieldName = null;
        while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
            if (token == XContentParser.Token.FIELD_NAME) {
                currentFieldName = parser.currentName();
            } else if ("script".equals(currentFieldName)) {
                script = Script.parse(parser);
            } else if ("scripted_upsert".equals(currentFieldName)) {
                scriptedUpsert = parser.booleanValue();
            } else if ("upsert".equals(currentFieldName)) {
                XContentBuilder builder = XContentFactory.contentBuilder(parser.contentType());
                builder.copyCurrentStructure(parser);
                safeUpsertRequest().source(builder);
            } else if ("doc".equals(currentFieldName)) {
                XContentBuilder docBuilder = XContentFactory.contentBuilder(parser.contentType());
                docBuilder.copyCurrentStructure(parser);
                safeDoc().source(docBuilder);
            } else if ("doc_as_upsert".equals(currentFieldName)) {
                docAsUpsert(parser.booleanValue());
            } else if ("detect_noop".equals(currentFieldName)) {
                detectNoop(parser.booleanValue());
            } else if ("fields".equals(currentFieldName)) {
                List fields = null;
                if (token == XContentParser.Token.START_ARRAY) {
                    fields = (List) parser.list();
                } else if (token.isValue()) {
                    fields = Collections.singletonList(parser.text());
                }
                if (fields != null) {
                    fields(fields.toArray(new String[fields.size()]));
                }
            } else if ("_source".equals(currentFieldName)) {
                fetchSourceContext = FetchSourceContext.fromXContent(parser);
            }
        }
        if (script != null) {
            this.script = script;
        }
        return this;
    }

    public boolean docAsUpsert() {
        return this.docAsUpsert;
    }

    public UpdateRequest docAsUpsert(boolean shouldUpsertDoc) {
        this.docAsUpsert = shouldUpsertDoc;
        return this;
    }

    public boolean scriptedUpsert(){
        return this.scriptedUpsert;
    }

    public UpdateRequest scriptedUpsert(boolean scriptedUpsert) {
        this.scriptedUpsert = scriptedUpsert;
        return this;
    }

    @Override
    public void readFrom(StreamInput in) throws IOException {
        super.readFrom(in);
        waitForActiveShards = ActiveShardCount.readFrom(in);
        type = in.readString();
        id = in.readString();
        routing = in.readOptionalString();
        parent = in.readOptionalString();
        if (in.readBoolean()) {
            script = new Script(in);
        }
        retryOnConflict = in.readVInt();
        refreshPolicy = RefreshPolicy.readFrom(in);
        if (in.readBoolean()) {
            doc = new IndexRequest();
            doc.readFrom(in);
        }
        fields = in.readOptionalStringArray();
        fetchSourceContext = in.readOptionalWriteable(FetchSourceContext::new);
        if (in.readBoolean()) {
            upsertRequest = new IndexRequest();
            upsertRequest.readFrom(in);
        }
        docAsUpsert = in.readBoolean();
        version = in.readLong();
        versionType = VersionType.fromValue(in.readByte());
        detectNoop = in.readBoolean();
        scriptedUpsert = in.readBoolean();
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        waitForActiveShards.writeTo(out);
        out.writeString(type);
        out.writeString(id);
        out.writeOptionalString(routing);
        out.writeOptionalString(parent);
        boolean hasScript = script != null;
        out.writeBoolean(hasScript);
        if (hasScript) {
            script.writeTo(out);
        }
        out.writeVInt(retryOnConflict);
        refreshPolicy.writeTo(out);
        if (doc == null) {
            out.writeBoolean(false);
        } else {
            out.writeBoolean(true);
            // make sure the basics are set
            doc.index(index);
            doc.type(type);
            doc.id(id);
            doc.writeTo(out);
        }
        out.writeOptionalStringArray(fields);
        out.writeOptionalWriteable(fetchSourceContext);
        if (upsertRequest == null) {
            out.writeBoolean(false);
        } else {
            out.writeBoolean(true);
            // make sure the basics are set
            upsertRequest.index(index);
            upsertRequest.type(type);
            upsertRequest.id(id);
            upsertRequest.writeTo(out);
        }
        out.writeBoolean(docAsUpsert);
        out.writeLong(version);
        out.writeByte(versionType.getValue());
        out.writeBoolean(detectNoop);
        out.writeBoolean(scriptedUpsert);
    }

    @Override
    public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
        builder.startObject();
        if (docAsUpsert) {
            builder.field("doc_as_upsert", docAsUpsert);
        }
        if (doc != null) {
            XContentType xContentType = doc.getContentType();
            try (XContentParser parser = XContentHelper.createParser(NamedXContentRegistry.EMPTY, doc.source(), xContentType)) {
                builder.field("doc");
                builder.copyCurrentStructure(parser);
            }
        }
        if (script != null) {
            builder.field("script", script);
        }
        if (upsertRequest != null) {
            XContentType xContentType = upsertRequest.getContentType();
            try (XContentParser parser = XContentHelper.createParser(NamedXContentRegistry.EMPTY, upsertRequest.source(), xContentType)) {
                builder.field("upsert");
                builder.copyCurrentStructure(parser);
            }
        }
        if (scriptedUpsert) {
            builder.field("scripted_upsert", scriptedUpsert);
        }
        if (detectNoop == false) {
            builder.field("detect_noop", detectNoop);
        }
        if (fields != null) {
            builder.array("fields", fields);
        }
        if (fetchSourceContext != null) {
            builder.field("_source", fetchSourceContext);
        }
        builder.endObject();
        return builder;
    }

    @Override
    public String toString() {
        StringBuilder res = new StringBuilder()
            .append("update {[").append(index)
            .append("][").append(type)
            .append("][").append(id).append("]");
        res.append(", doc_as_upsert[").append(docAsUpsert).append("]");
        if (doc != null) {
            res.append(", doc[").append(doc).append("]");
        }
        if (script != null) {
            res.append(", script[").append(script).append("]");
        }
        if (upsertRequest != null) {
            res.append(", upsert[").append(upsertRequest).append("]");
        }
        res.append(", scripted_upsert[").append(scriptedUpsert).append("]");
        res.append(", detect_noop[").append(detectNoop).append("]");
        if (fields != null) {
            res.append(", fields[").append(Arrays.toString(fields)).append("]");
        }
        return res.append("}").toString();
    }
}
 















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