annis.dao.ListCorpusByNameDaoHelper.java Source code

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Here is the source code for annis.dao.ListCorpusByNameDaoHelper.java

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/*
 * Copyright 2009-2011 Collaborative Research Centre SFB 632 
 *
 * 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 annis.dao;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.Validate;
import org.springframework.jdbc.core.simple.ParameterizedSingleColumnRowMapper;

import static annis.sqlgen.SqlConstraints.sqlString;

public class ListCorpusByNameDaoHelper extends ParameterizedSingleColumnRowMapper<Long> {

    public String createSql(List<String> corpusNames) {
        Validate.notEmpty(corpusNames, "Need at least one corpus name");

        // turn corpus names into sql strings (enclosed with ')
        List<String> corpusNamesSqlStrings = new ArrayList<String>();
        for (String corpus : corpusNames) {
            corpusNamesSqlStrings.add(sqlString(corpus));
        }

        // build sql query
        StringBuilder sb = new StringBuilder();
        sb.append("SELECT id FROM corpus WHERE name IN ( ");
        sb.append(StringUtils.join(corpusNamesSqlStrings, ", "));
        sb.append(" ) AND top_level = 't'");
        return sb.toString();
    }
}