Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*-
 * #%L
 * Bobcat
 * %%
 * Copyright (C) 2016 Cognifide Ltd.
 * %%
 * 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.
 * #L%
 */

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

public class Main {
    /**
     * Method perform intelligent escaping of quotes in xpath expressions, if necessary it constructs concat
     * functions otherwise it simply add single or double quotes.
     *
     * @param sentence - e.g. "'My Login' te"xt" then result: concat("'", 'My Login', "'", ' te"xt')
     * @return sentence with quotes or concat function
     * @throws NullPointerException if sentence is null
     */
    public static String quote(String sentence) {
        if (!sentence.contains("'")) {
            return addSingleQuotation(sentence);
        } else if (sentence.contains("'") && !sentence.contains("\"")) {
            return addDoubleQuotation(sentence);
        } else {
            return changeToConcat(sentence);
        }
    }

    private static String addSingleQuotation(String sentence) {
        return "'" + sentence + "'";
    }

    private static String addDoubleQuotation(String sentence) {
        return "\"" + sentence + "\"";
    }

    private static String changeToConcat(String sentenceTosearch) {
        StringBuilder builder = new StringBuilder();
        builder.append("concat(");

        List<String> tokens = splitTokens(sentenceTosearch);
        quoteTokens(tokens);

        for (int i = 0; i < tokens.size(); i++) {
            builder.append(tokens.get(i));
            if (i < tokens.size() - 1) {
                builder.append(", ");
            }
        }

        builder.append(")");

        return builder.toString();
    }

    private static List<String> splitTokens(String sentenceTosearch) {
        StringTokenizer tokenizer = new StringTokenizer(sentenceTosearch, "'", true);
        List<String> tokens = new ArrayList<>();
        while (tokenizer.hasMoreElements()) {
            tokens.add(tokenizer.nextToken());
        }
        return tokens;
    }

    private static void quoteTokens(List<String> tokens) {
        for (int i = 0; i < tokens.size(); i++) {
            String token = tokens.get(i);
            if ("'".equals(token)) {
                token = addDoubleQuotation(token);
            } else {
                token = addSingleQuotation(token);
            }
            tokens.set(i, token);
        }
    }
}