query_sql_fields.h

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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.
 */

#ifndef _IGNITE_CACHE_QUERY_QUERY_SQL_FIELDS
#define _IGNITE_CACHE_QUERY_QUERY_SQL_FIELDS

#include <stdint.h>
#include <string>
#include <vector>

#include <ignite/impl/cache/query/query_argument.h>
#include <ignite/binary/binary_raw_writer.h>

namespace ignite
{
    namespace cache
    {
        namespace query
        {
            class SqlFieldsQuery
            {
            public:
                SqlFieldsQuery(const std::string& sql) :
                    sql(sql),
                    schema(),
                    pageSize(1024),
                    loc(false),
                    distributedJoins(false),
                    enforceJoinOrder(false),
                    args()
                {
                    // No-op.
                }

                SqlFieldsQuery(const std::string& sql, bool loc) :
                    sql(sql),
                    schema(),
                    pageSize(1024),
                    loc(false),
                    distributedJoins(false),
                    enforceJoinOrder(false),
                    args()
                {
                    // No-op.
                }

                SqlFieldsQuery(const SqlFieldsQuery& other) :
                    sql(other.sql),
                    schema(other.schema),
                    pageSize(other.pageSize),
                    loc(other.loc),
                    distributedJoins(other.distributedJoins),
                    enforceJoinOrder(other.enforceJoinOrder),
                    args()
                {
                    args.reserve(other.args.size());

                    typedef std::vector<impl::cache::query::QueryArgumentBase*>::const_iterator Iter;

                    for (Iter i = other.args.begin(); i != other.args.end(); ++i)
                        args.push_back((*i)->Copy());
                }

                SqlFieldsQuery& operator=(const SqlFieldsQuery& other) 
                {
                    if (this != &other)
                    {
                        SqlFieldsQuery tmp(other);

                        Swap(tmp);
                    }

                    return *this;
                }

                ~SqlFieldsQuery()
                {
                    typedef std::vector<impl::cache::query::QueryArgumentBase*>::const_iterator Iter;

                    for (Iter it = args.begin(); it != args.end(); ++it)
                        delete *it;
                }

                void Swap(SqlFieldsQuery& other)
                {
                    if (this != &other)
                    {
                        using std::swap;

                        swap(sql, other.sql);
                        swap(sql, other.schema);
                        swap(pageSize, other.pageSize);
                        swap(loc, other.loc);
                        swap(distributedJoins, other.distributedJoins);
                        swap(enforceJoinOrder, other.enforceJoinOrder);
                        swap(args, other.args);
                    }
                }

                const std::string& GetSql() const
                {
                    return sql;
                }

                void SetSql(const std::string& sql)
                {
                    this->sql = sql;
                }

                int32_t GetPageSize() const
                {
                    return pageSize;
                }

                void SetPageSize(int32_t pageSize)
                {
                    this->pageSize = pageSize;
                }

                bool IsLocal() const
                {
                    return loc;
                }

                void SetLocal(bool loc)
                {
                    this->loc = loc;
                }

                bool IsEnforceJoinOrder() const
                {
                    return enforceJoinOrder;
                }

                void SetEnforceJoinOrder(bool enforce)
                {
                    enforceJoinOrder = enforce;
                }

                bool IsDistributedJoins() const
                {
                    return distributedJoins;
                }

                void SetDistributedJoins(bool enabled)
                {
                    distributedJoins = enabled;
                }

                template<typename T>
                void AddArgument(const T& arg)
                {
                    args.push_back(new impl::cache::query::QueryArgument<T>(arg));
                }

                void ClearArguments()
                {
                    args.clear();
                }

                void SetSchema(const std::string& schema)
                {
                    this->schema = schema;
                }

                const std::string& GetSchema() const
                {
                    return schema;
                }

                void Write(binary::BinaryRawWriter& writer) const
                {
                    writer.WriteBool(loc);
                    writer.WriteString(sql);
                    writer.WriteInt32(pageSize);

                    writer.WriteInt32(static_cast<int32_t>(args.size()));

                    std::vector<impl::cache::query::QueryArgumentBase*>::const_iterator it;

                    for (it = args.begin(); it != args.end(); ++it)
                        (*it)->Write(writer);

                    writer.WriteBool(distributedJoins);
                    writer.WriteBool(enforceJoinOrder);
                    writer.WriteInt32(0);     // Timeout, ms
                    writer.WriteBool(false);  // ReplicatedOnly
                    writer.WriteBool(false);  // Colocated

                    if (schema.empty())
                        writer.WriteNull();
                    else
                        writer.WriteString(schema);
                }

            private:
                std::string sql;

                std::string schema;

                int32_t pageSize;

                bool loc;

                bool distributedJoins;

                bool enforceJoinOrder;

                std::vector<impl::cache::query::QueryArgumentBase*> args;
            };
        }
    }    
}

#endif //_IGNITE_CACHE_QUERY_QUERY_SQL_FIELDS