org.netbeans.modules.mongodb.ui.util.DatabaseNameValidator.java Source code

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Here is the source code for org.netbeans.modules.mongodb.ui.util.DatabaseNameValidator.java

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/* 
 * Copyright (C) 2015 Yann D'Isanto
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.netbeans.modules.mongodb.ui.util;

import com.mongodb.MongoClient;
import java.util.ArrayList;
import static java.util.Collections.emptyList;
import java.util.List;
import org.netbeans.modules.mongodb.MongoConnection;
import org.openide.util.Lookup;

/**
 *
 * @author Yann D'Isanto
 */
public final class DatabaseNameValidator implements ValidatingInputLine.InputValidator {

    private static final String[] forbiddenCharacters = { "/", "\\", ".", " ", "\"", "\u0000" };

    private final Lookup lookup;

    public DatabaseNameValidator(Lookup lookup) {
        this.lookup = lookup;
    }

    @Override
    public void validate(String inputText) throws IllegalArgumentException {
        final String value = inputText.trim();
        if (value.isEmpty()) {
            throw new IllegalArgumentException(Bundle.VALIDATION_empty());
        }
        if (value.length() >= 64) {
            throw new IllegalArgumentException(Bundle.VALIDATION_maxLength(63));
        }
        for (String character : forbiddenCharacters) {
            if (value.contains(character)) {
                throw new IllegalArgumentException(Bundle.VALIDATION_forbidden_character(character));
            }
        }
        for (String dbName : databaseNames()) {
            if (dbName.equalsIgnoreCase(value)) {
                throw new IllegalArgumentException(Bundle.VALIDATION_exists("database", value));
            }
        }
    }

    private List<String> databaseNames() {
        MongoConnection connection = lookup.lookup(MongoConnection.class);
        if (connection != null) {
            MongoClient client = connection.getClient();
            if (client != null) {
                return client.listDatabaseNames().into(new ArrayList<String>());
            }
        }
        return emptyList();
    }
}