1.1 --- a/src/net/fortuna/ical4j/util/ParameterValidator.java Thu Feb 12 18:02:00 2015 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,131 +0,0 @@
1.4 -/**
1.5 - * Copyright (c) 2012, Ben Fortuna
1.6 - * All rights reserved.
1.7 - *
1.8 - * Redistribution and use in source and binary forms, with or without
1.9 - * modification, are permitted provided that the following conditions
1.10 - * are met:
1.11 - *
1.12 - * o Redistributions of source code must retain the above copyright
1.13 - * notice, this list of conditions and the following disclaimer.
1.14 - *
1.15 - * o Redistributions in binary form must reproduce the above copyright
1.16 - * notice, this list of conditions and the following disclaimer in the
1.17 - * documentation and/or other materials provided with the distribution.
1.18 - *
1.19 - * o Neither the name of Ben Fortuna nor the names of any other contributors
1.20 - * may be used to endorse or promote products derived from this software
1.21 - * without specific prior written permission.
1.22 - *
1.23 - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.27 - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.28 - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.29 - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.30 - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.31 - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.32 - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.33 - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 - */
1.35 -package net.fortuna.ical4j.util;
1.36 -
1.37 -import net.fortuna.ical4j.model.Parameter;
1.38 -import net.fortuna.ical4j.model.ParameterList;
1.39 -import net.fortuna.ical4j.model.ValidationException;
1.40 -
1.41 -/**
1.42 - * $Id$ [15-May-2004]
1.43 - *
1.44 - * Defines methods for validating parameters and parameter
1.45 - * lists.
1.46 - *
1.47 - * @author Ben Fortuna
1.48 - */
1.49 -public final class ParameterValidator {
1.50 -
1.51 - private static final String ASSERT_NONE_MESSAGE = "Parameter [{0}] is not applicable";
1.52 -
1.53 - private static final String ASSERT_ONE_OR_LESS_MESSAGE = "Parameter [{0}] must only be specified once";
1.54 -
1.55 - private static final String ASSERT_ONE_MESSAGE = "Parameter [{0}] must be specified once";
1.56 -
1.57 - private static final String ASSERT_NULL_OR_EQUAL_MESSAGE = "Parameter [{0}] is invalid";
1.58 -
1.59 - private static ParameterValidator instance = new ParameterValidator();
1.60 -
1.61 - /**
1.62 - * Constructor made private to enforce singleton.
1.63 - */
1.64 - private ParameterValidator() {
1.65 - }
1.66 -
1.67 - /**
1.68 - * Ensure a parameter occurs no more than once.
1.69 - *
1.70 - * @param paramName
1.71 - * the parameter name
1.72 - * @param parameters
1.73 - * a list of parameters to query
1.74 - * @throws ValidationException
1.75 - * when the specified parameter occurs more than once
1.76 - */
1.77 - public void assertOneOrLess(final String paramName,
1.78 - final ParameterList parameters) throws ValidationException {
1.79 -
1.80 - if (parameters.getParameters(paramName).size() > 1) {
1.81 - throw new ValidationException(ASSERT_ONE_OR_LESS_MESSAGE, new Object[] {paramName});
1.82 - }
1.83 - }
1.84 -
1.85 - /**
1.86 - * Ensure a parameter occurs once.
1.87 - *
1.88 - * @param paramName
1.89 - * the parameter name
1.90 - * @param parameters
1.91 - * a list of parameters to query
1.92 - * @throws ValidationException
1.93 - * when the specified parameter does not occur once
1.94 - */
1.95 - public void assertOne(final String paramName,
1.96 - final ParameterList parameters) throws ValidationException {
1.97 -
1.98 - if (parameters.getParameters(paramName).size() != 1) {
1.99 - throw new ValidationException(ASSERT_ONE_MESSAGE, new Object[] {paramName});
1.100 - }
1.101 - }
1.102 -
1.103 - /**
1.104 - * Ensure a parameter doesn't occur in the specified list.
1.105 - * @param paramName the name of a parameter
1.106 - * @param parameters a list of parameters
1.107 - * @throws ValidationException thrown when the specified property
1.108 - * is found in the list of properties
1.109 - */
1.110 - public void assertNone(final String paramName, final ParameterList parameters) throws ValidationException {
1.111 - if (parameters.getParameter(paramName) != null) {
1.112 - throw new ValidationException(ASSERT_NONE_MESSAGE, new Object[] {paramName});
1.113 - }
1.114 - }
1.115 -
1.116 - /**
1.117 - * @param param a parameter instance
1.118 - * @param parameters a list of parameters
1.119 - * @throws ValidationException where the assertion fails
1.120 - */
1.121 - public void assertNullOrEqual(final Parameter param, final ParameterList parameters) throws ValidationException {
1.122 - final Parameter p = parameters.getParameter(param.getName());
1.123 - if (p != null && !param.equals(p)) {
1.124 - throw new ValidationException(ASSERT_NULL_OR_EQUAL_MESSAGE, new Object[] {p});
1.125 - }
1.126 - }
1.127 -
1.128 - /**
1.129 - * @return Returns the instance.
1.130 - */
1.131 - public static ParameterValidator getInstance() {
1.132 - return instance;
1.133 - }
1.134 -}
