Java tutorial
/* * Copyright 2015-2018 52North Initiative for Geospatial Open Source * Software GmbH * * 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. */ package org.n52.shetland.ogc.ows; import java.net.URI; import java.util.Objects; import java.util.Optional; import com.google.common.base.MoreObjects; import com.google.common.base.Strings; /** * TODO JavaDoc * * @author Christian Autermann */ public class OwsDomainMetadata { private final URI reference; private final String value; public OwsDomainMetadata(URI reference, String value) { this.reference = reference; this.value = Strings.emptyToNull(value); } public OwsDomainMetadata(String value) { this(null, value); } public OwsDomainMetadata(URI reference) { this(reference, null); } public Optional<URI> getReference() { return Optional.ofNullable(this.reference); } public Optional<String> getValue() { return Optional.ofNullable(this.value); } @Override public int hashCode() { return Objects.hash(this.reference, this.value); } @Override public boolean equals(Object obj) { if (obj == null) { return false; } if (getClass() != obj.getClass()) { return false; } final OwsDomainMetadata that = (OwsDomainMetadata) obj; return Objects.equals(this.getValue(), that.getValue()) && Objects.equals(this.getReference(), that.getReference()); } @Override public String toString() { return MoreObjects.toStringHelper(this).omitNullValues().add("reference", getReference().orElse(null)) .add("value", getValue().orElse(null)).toString(); } }