org.obiba.mica.dataset.rest.entity.rql.RQLCriterionOpalConverter.java Source code

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Here is the source code for org.obiba.mica.dataset.rest.entity.rql.RQLCriterionOpalConverter.java

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/*
 * Copyright (c) 2018 OBiBa. All rights reserved.
 *
 * This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.obiba.mica.dataset.rest.entity.rql;

import com.google.common.base.Strings;
import net.jazdw.rql.parser.ASTNode;
import org.obiba.mica.core.domain.BaseStudyTable;

import java.util.List;

public class RQLCriterionOpalConverter {

    private String function;

    private boolean not = false;

    private String value;

    private RQLFieldReferences variableReferences;

    private RQLCriterionOpalConverter() {
    }

    private String getQuery(String field) {
        String query = function + "(" + field;
        if (Strings.isNullOrEmpty(value))
            query = query + ")";
        else
            query = query + ",(" + value + "))";
        return not ? "not(" + query + ")" : query;
    }

    public boolean hasMultipleStudyTables() {
        return getStudyTables().size() > 1;
    }

    public List<BaseStudyTable> getStudyTables() {
        return variableReferences.getStudyTables();
    }

    public String getOpalQuery(BaseStudyTable studyTable) {
        return getQuery(variableReferences.getOpalVariablePath(studyTable));
    }

    public String getOpalQuery() {
        return getQuery(variableReferences.getOpalVariablePath());
    }

    public String getMicaQuery() {
        return getQuery(variableReferences.getMicaVariablePath());
    }

    public RQLFieldReferences getVariableReferences() {
        return variableReferences;
    }

    public static Builder newBuilder(ASTNode node) {
        return new Builder(node);
    }

    public static class Builder {

        private final RQLCriterionOpalConverter criterion;

        public Builder(ASTNode node) {
            criterion = new RQLCriterionOpalConverter();
            criterion.function = node.getName();
        }

        public Builder references(RQLFieldReferences variableReferences) {
            criterion.variableReferences = variableReferences;
            return this;
        }

        public Builder value(String value) {
            criterion.value = value;
            return this;
        }

        public Builder not(boolean not) {
            criterion.not = not;
            return this;
        }

        public RQLCriterionOpalConverter build() {
            return criterion;
        }

    }

}