e8efcd82a8
Motivation: We can just use Objects.requireNonNull(...) as a replacement for ObjectUtil.checkNotNull(....) Modifications: - Use Objects.requireNonNull(...) Result: Less code to maintain.
102 lines
2.9 KiB
Java
102 lines
2.9 KiB
Java
/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.smtp;
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import static java.util.Objects.requireNonNull;
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import io.netty.util.internal.UnstableApi;
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import java.util.Collections;
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import java.util.List;
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/**
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* Default {@link SmtpRequest} implementation.
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*/
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@UnstableApi
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public final class DefaultSmtpRequest implements SmtpRequest {
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private final SmtpCommand command;
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private final List<CharSequence> parameters;
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/**
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* Creates a new instance with the given command and no parameters.
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*/
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public DefaultSmtpRequest(SmtpCommand command) {
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this.command = requireNonNull(command, "command");
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parameters = Collections.emptyList();
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}
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/**
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* Creates a new instance with the given command and parameters.
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*/
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public DefaultSmtpRequest(SmtpCommand command, CharSequence... parameters) {
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this.command = requireNonNull(command, "command");
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this.parameters = SmtpUtils.toUnmodifiableList(parameters);
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}
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/**
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* Creates a new instance with the given command and parameters.
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*/
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public DefaultSmtpRequest(CharSequence command, CharSequence... parameters) {
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this(SmtpCommand.valueOf(command), parameters);
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}
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DefaultSmtpRequest(SmtpCommand command, List<CharSequence> parameters) {
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this.command = requireNonNull(command, "command");
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this.parameters = parameters != null ?
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Collections.unmodifiableList(parameters) : Collections.emptyList();
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}
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@Override
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public SmtpCommand command() {
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return command;
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}
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@Override
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public List<CharSequence> parameters() {
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return parameters;
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}
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@Override
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public int hashCode() {
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return command.hashCode() * 31 + parameters.hashCode();
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}
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@Override
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public boolean equals(Object o) {
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if (!(o instanceof DefaultSmtpRequest)) {
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return false;
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}
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if (o == this) {
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return true;
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}
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DefaultSmtpRequest other = (DefaultSmtpRequest) o;
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return command().equals(other.command()) &&
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parameters().equals(other.parameters());
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}
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@Override
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public String toString() {
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return "DefaultSmtpRequest{" +
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"command=" + command +
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", parameters=" + parameters +
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'}';
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}
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}
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