de.mhus.lib.sql.commonparser.Common2SqlCompiler Maven / Gradle / Ivy

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/**
 * Copyright 2018 Mike Hummel
 *
 * 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 de.mhus.lib.sql.commonparser;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import de.mhus.lib.core.MXml;
import de.mhus.lib.core.parser.CompiledString;
import de.mhus.lib.core.parser.ParseException;
import de.mhus.lib.core.parser.Parser;
import de.mhus.lib.core.parser.StringPart;
import de.mhus.lib.sql.parser.ICompiler;

/**    */
public class Common2SqlCompiler implements Parser {

    protected ICompiler compiler;

    public Common2SqlCompiler(ICompiler compiler) {
        this.compiler = compiler;
    }

    @Override
    public CompiledString compileString(String in) throws ParseException {
        try {
            Document xml = MXml.loadXml(in);

            Element rootElement = xml.getDocumentElement();
            if (!rootElement.getNodeName().equals("common"))
                throw new ParseException(
                        "xml is not in common language, need to start with the tag ", in);

            return new CompiledString(new StringPart[] {});
        } catch (Exception e) {
            throw new ParseException(in, e);
        }
    }
}