trunk/chemistry-opencmis-server/chemistry-opencmis-server-inmemory/src/main/java/org/apache/chemistry/opencmis/inmemory/NameValidator.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.chemistry.opencmis.inmemory;

public final class NameValidator {

    public static final String ERROR_ILLEGAL_ID = "Id contains illegal characters, allowed are "
            + "'a'..'z', 'A'..'Z', '0'..'9', '-', '_'";
    public static final String ERROR_ILLEGAL_NAME = "Name contains illegal characters, not allowed are "
            + "'/', '\\', ':', '\"', '*'. '?', '<','>', '|'";

    // Utility class
    private NameValidator() {
    }

    /**
     * check whether id contains only valid characters Allowed are 'a'..'z',
     * 'A'..'Z', '0'..'9', '.', '-', ' ', '_'.
     * 
     * @param s
     *            string to verify
     * @return true if valid name, false otherwise
     */
    public static boolean isValidId(String s) {
        if (null == s || s.length() == 0) {
            return false;
        }

        for (int i = 0; i < s.length(); i++) {
            char c = s.charAt(i);
            if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == ':' || c == '.'
                    || c == '-' || c == '_' || c == ' ')) {
                return false;
            }
        }
        return true;
    }

    public static boolean isValidLocalName(String s) {
        return isValidId(s);
    }

    /**
     * check whether id contains only valid characters. Not allowed are '/',
     * '\\', ':', '\"', '*'. '?', '<','>', '|'"
     * 
     * @param s
     *            string to verify
     * @return true if valid name, false otherwise
     */
    public static boolean isValidName(String s) {
        if (null == s || s.length() == 0) {
            return false;
        }
        for (int i = 0; i < s.length(); i++) {
            char c = s.charAt(i);
            if (c == '\\' || c == '/' || c == '\"' || c == ':' || c == '*' || c == '?' || c == '<' || c == '>'
                    && c == '|') {
                return false;
            }
        }
        return true;
    }

    public static boolean isValidNamespace(String s) {
        return isValidId(s);
    }

    public static boolean isValidQueryName(String s) {
        return isValidId(s);
    }

}