InformationSqlFeaturesTableInfo.java example

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/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
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package io.crate.metadata.information;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedMap;
import io.crate.metadata.*;
import io.crate.types.DataType;
import io.crate.types.DataTypes;
import org.elasticsearch.cluster.service.ClusterService;


public class InformationSqlFeaturesTableInfo extends InformationTableInfo {

    public static final String NAME = "sql_features";
    public static final TableIdent IDENT = new TableIdent(InformationSchemaInfo.NAME, NAME);

    public static class Columns {
        public static final ColumnIdent FEATURE_ID = new ColumnIdent("feature_id");
        public static final ColumnIdent FEATURE_NAME = new ColumnIdent("feature_name");
        public static final ColumnIdent SUB_FEATURE_ID = new ColumnIdent("sub_feature_id");
        public static final ColumnIdent SUB_FEATURE_NAME = new ColumnIdent("sub_feature_name");
        public static final ColumnIdent IS_SUPPORTED = new ColumnIdent("is_supported");
        public static final ColumnIdent IS_VERIFIED_BY = new ColumnIdent("is_verified_by");
        public static final ColumnIdent COMMENTS = new ColumnIdent("comments");
    }

    public static class References {
        public static final Reference FEATURE_ID = createRef(Columns.FEATURE_ID, DataTypes.STRING);
        public static final Reference FEATURE_NAME = createRef(Columns.FEATURE_NAME, DataTypes.STRING);
        public static final Reference SUB_FEATURE_ID = createRef(Columns.SUB_FEATURE_ID, DataTypes.STRING);
        public static final Reference SUB_FEATURE_NAME = createRef(Columns.SUB_FEATURE_NAME, DataTypes.STRING);
        public static final Reference IS_SUPPORTED = createRef(Columns.IS_SUPPORTED, DataTypes.BOOLEAN);
        public static final Reference IS_VERIFIED_BY = createRef(Columns.IS_VERIFIED_BY, DataTypes.STRING);
        public static final Reference COMMENTS = createRef(Columns.COMMENTS, DataTypes.STRING);
    }

    private static Reference createRef(ColumnIdent columnIdent, DataType dataType) {
        return new Reference(new ReferenceIdent(IDENT, columnIdent), RowGranularity.DOC, dataType);
    }

    protected InformationSqlFeaturesTableInfo(ClusterService clusterService) {
        super(clusterService, IDENT,
            ImmutableList.of(Columns.FEATURE_ID,
                Columns.FEATURE_NAME,
                Columns.SUB_FEATURE_ID,
                Columns.SUB_FEATURE_NAME,
                Columns.IS_SUPPORTED,
                Columns.IS_VERIFIED_BY,
                Columns.COMMENTS),
            ImmutableSortedMap.<ColumnIdent, Reference>naturalOrder()
                .put(Columns.FEATURE_ID, References.FEATURE_ID)
                .put(Columns.FEATURE_NAME, References.FEATURE_NAME)
                .put(Columns.SUB_FEATURE_ID, References.SUB_FEATURE_ID)
                .put(Columns.SUB_FEATURE_NAME, References.SUB_FEATURE_NAME)
                .put(Columns.IS_SUPPORTED, References.IS_SUPPORTED)
                .put(Columns.IS_VERIFIED_BY, References.IS_VERIFIED_BY)
                .put(Columns.COMMENTS, References.COMMENTS)
                .build()
        );
    }

}