package io.eguan.configuration; /* * #%L * Project eguan * %% * Copyright (C) 2012 - 2017 Oodrive * %% * 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.Objects; import java.util.UUID; /** * {@link AbstractConfigKey} implementation dedicated to handling {@link UUID} values. * * @author oodrive * @author pwehrle * @author llambert * */ public abstract class UuidConfigKey extends AbstractConfigKey { /** * Proxy constructor for subclasses. * * @param name * see {@link AbstractConfigKey#AbstractConfigKey(String)} */ public UuidConfigKey(final String name) { super(name); } @Override public final UUID getTypedValue(final MetaConfiguration configuration) throws IllegalStateException, ClassCastException, NullPointerException { Objects.requireNonNull(configuration); checkConfigForKey(configuration); return (UUID) configuration.getValue(this); } @Override protected final UUID parseValue(final String value) throws IllegalArgumentException, NullPointerException { if (value.isEmpty()) { // Returns the default value or null when there is no default value final UUID defaultValue = (UUID) getDefaultValue(); return defaultValue; } return UUID.fromString(Objects.requireNonNull(value)); } @Override protected final String valueToString(final Object value) throws IllegalArgumentException, NullPointerException { if (value == null) { return ""; } if (!(value instanceof UUID)) { throw new IllegalArgumentException("Not a UUID"); } return ((UUID) value).toString(); } @Override protected final ValidationError checkValue(final Object value) { final ValidationError result = checkForNullAndRequired(value); if (result != ValidationError.NO_ERROR) { return (result.getType() == ValidationError.ErrorType.VALUE_NULL) ? ValidationError.NO_ERROR : result; } return checkSameClass(value, UUID.class); } }