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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.tinkerpop.gremlin.driver;

import org.apache.tinkerpop.gremlin.driver.message.ResponseMessage;
import org.apache.tinkerpop.gremlin.process.traversal.TraversalSource;
import org.apache.tinkerpop.gremlin.structure.Graph;

/**
 * String constants used in gremlin-driver and gremlin-server.
 *
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public final class Tokens {
    private Tokens() {}

    public static final String OPS_AUTHENTICATION = "authentication";
    public static final String OPS_BYTECODE = "bytecode";
    public static final String OPS_EVAL = "eval";
    public static final String OPS_INVALID = "invalid";
    public static final String OPS_CLOSE = "close";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String OPS_GATHER = "gather";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String OPS_KEYS = "keys";

    /**
     * The key for the unique identifier of the request.
     */
    public static final String REQUEST_ID = "requestId";

    /**
     * Argument name that allows definition of the number of iterations each {@link ResponseMessage} should contain -
     * overrides the @{code resultIterationBatchSize} server setting.
     */
    public static final String ARGS_BATCH_SIZE = "batchSize";

    /**
     * Argument name that allows to provide a map of key/value pairs to apply as variables in the context of
     * the Gremlin request sent to the server.
     */
    public static final String ARGS_BINDINGS = "bindings";

    /**
     * Argument name that allows definition of alias names for {@link Graph} and {@link TraversalSource} objects on
     * the remote system.
     */
    public static final String ARGS_ALIASES = "aliases";
    public static final String ARGS_FORCE = "force";

    /**
     * Argument name that corresponds to the Gremlin to evaluate.
     */
    public static final String ARGS_GREMLIN = "gremlin";

    /**
     * Argument name that allows definition of the flavor of Gremlin used (e.g. gremlin-groovy) to process the request.
     */
    public static final String ARGS_LANGUAGE = "language";

    /**
     * @deprecated As of release 3.3.9, replaced by {@link #ARGS_EVAL_TIMEOUT}.
     */
    @Deprecated
    public static final String ARGS_SCRIPT_EVAL_TIMEOUT = "scriptEvaluationTimeout";

    /**
     * Argument name that allows the override of the server setting that determines the maximum time to wait for a
     * request to execute on the server.
     */
    public static final String ARGS_EVAL_TIMEOUT = "evaluationTimeout";
    public static final String ARGS_HOST = "host";
    public static final String ARGS_SESSION = "session";
    public static final String ARGS_MANAGE_TRANSACTION = "manageTransaction";
    public static final String ARGS_SASL = "sasl";
    public static final String ARGS_SASL_MECHANISM = "saslMechanism";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String ARGS_SIDE_EFFECT = "sideEffect";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String ARGS_AGGREGATE_TO = "aggregateTo";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String ARGS_SIDE_EFFECT_KEY = "sideEffectKey";

    /**
     * A value that is a custom string that the user can pass to a server that might accept it for purpose of
     * identifying the kind of client it came from.
     */
    public static final String ARGS_USER_AGENT = "userAgent";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String VAL_AGGREGATE_TO_BULKSET = "bulkset";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String VAL_AGGREGATE_TO_LIST = "list";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String VAL_AGGREGATE_TO_MAP = "map";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String VAL_AGGREGATE_TO_NONE = "none";

    /**
     * @deprecated As of release 3.3.8, not directly replaced in the protocol as side-effect retrieval after
     * traversal iteration is not being promoted anymore as a feature.
     */
    @Deprecated
    public static final String VAL_AGGREGATE_TO_SET = "set";

    public static final String VAL_TRAVERSAL_SOURCE_ALIAS = "g";

    public static final String STATUS_ATTRIBUTE_EXCEPTIONS = "exceptions";
    public static final String STATUS_ATTRIBUTE_STACK_TRACE = "stackTrace";
    /**
     * A {@link ResultSet#statusAttributes()} key for user-facing warnings.
     * 
     * Implementations that set this key should consider using one of
     * these two recommended value types:
     * 

     *     A {@link java.util.List} implementation containing
     *     references for which {@link String#valueOf(Object)} produces
     *     a meaningful return value.  For example, a list of strings.
     *     Otherwise, any single non-list object for which
     *     {@link String#valueOf(Object)} produces a meaningful return value.
     *     For example, a string.
     * 
     */
    public static final String STATUS_ATTRIBUTE_WARNINGS = "warnings";
}