nz.co.testamation.core.reader.SelectRows.java Source code

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/*
 * Copyright 2016 Ratha Long
 *
 * Licensed 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 nz.co.testamation.core.reader;

import com.google.common.base.Function;
import com.google.common.collect.Lists;
import org.springframework.jdbc.core.JdbcTemplate;

import java.util.Map;

public class SelectRows implements SelectQuery<SQLResult> {
    private static final String SELECT_SQL_TEMPLATE = "select * from %s %s";

    private final String tableName;
    private WhereClauseBuilder where = new WhereClauseBuilder();

    public SelectRows(String tableName) {
        this.tableName = tableName;
    }

    public SelectRows where(String column, String value) {
        where.and(column, value);
        return this;
    }

    @Override
    public SQLResult select(JdbcTemplate jdbcTemplate) {
        return new SQLResult(
                Lists.transform(jdbcTemplate.queryForList(getSql()), new Function<Map<String, Object>, TableRow>() {
                    @Override
                    public TableRow apply(Map<String, Object> stringObjectMap) {
                        return new TableRowImpl(stringObjectMap);
                    }
                }));
    }

    protected String getSql() {
        return String.format(SELECT_SQL_TEMPLATE, tableName, where.toString());
    }

    @Override
    public String toString() {
        return String.format("SelectRows{table=%s, query=%s}", tableName, getSql());
    }

}