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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
84 lines
2.5 KiB
Java
84 lines
2.5 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.model.registry.label;
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import static com.google.common.base.Strings.emptyToNull;
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import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
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import com.googlecode.objectify.annotation.Id;
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import google.registry.model.Buildable.GenericBuilder;
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import google.registry.model.ImmutableObject;
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/**
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* Represents a label entry parsed from a line in a Reserved List txt file.
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*
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* @param <T> The type of the value stored for the domain label, e.g. {@link ReservationType}.
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*/
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public abstract class DomainLabelEntry<T extends Comparable<?>, D extends DomainLabelEntry<?, ?>>
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extends ImmutableObject implements Comparable<D> {
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@Id
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String label;
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String comment;
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/**
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* Returns the label of the field, which also happens to be used as the key for the Map object
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* that is serialized from Datastore.
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*/
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public String getLabel() {
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return label;
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}
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/**
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* Returns the value of the field (used for determining which entry takes priority over another).
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*/
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public abstract T getValue();
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@Override
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@SuppressWarnings("unchecked")
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public int compareTo(D other) {
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return ((Comparable<Object>) getValue()).compareTo(other.getValue());
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}
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/** A generic builder base. */
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public abstract static class Builder<T extends DomainLabelEntry<?, ?>, B extends Builder<T, ?>>
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extends GenericBuilder<T, B> {
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public Builder() {}
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protected Builder(T instance) {
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super(instance);
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}
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public B setLabel(String label) {
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getInstance().label = label;
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return thisCastToDerived();
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}
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public B setComment(String comment) {
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getInstance().comment = comment;
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return thisCastToDerived();
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}
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@Override
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public T build() {
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checkArgumentNotNull(emptyToNull(getInstance().label), "Label must be specified");
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checkArgumentNotNull(getInstance().getValue(), "Value must be specified");
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return super.build();
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}
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}
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}
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