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JoinConfigurationImpl.java
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JoinConfigurationImpl.java
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/*
* This file is part of adventure, licensed under the MIT License.
*
* Copyright (c) 2017-2022 KyoriPowered
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package net.kyori.adventure.text;
import java.util.Iterator;
import java.util.Objects;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Stream;
import net.kyori.adventure.internal.Internals;
import net.kyori.adventure.text.format.Style;
import net.kyori.examination.ExaminableProperty;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
final class JoinConfigurationImpl implements JoinConfiguration {
static final Function<ComponentLike, Component> DEFAULT_CONVERTOR = ComponentLike::asComponent;
static final Predicate<ComponentLike> DEFAULT_PREDICATE = componentLike -> true;
static final JoinConfigurationImpl NULL = new JoinConfigurationImpl();
static final JoinConfiguration STANDARD_NEW_LINES = JoinConfiguration.separator(Component.newline());
static final JoinConfiguration STANDARD_COMMA_SEPARATED = JoinConfiguration.separator(Component.text(","));
static final JoinConfiguration STANDARD_COMMA_SPACE_SEPARATED = JoinConfiguration.separator(Component.text(", "));
static final JoinConfiguration STANDARD_ARRAY_LIKE = JoinConfiguration.builder()
.separator(Component.text(", "))
.prefix(Component.text("["))
.suffix(Component.text("]"))
.build();
private final Component prefix;
private final Component suffix;
private final Component separator;
private final Component lastSeparator;
private final Component lastSeparatorIfSerial;
private final Function<ComponentLike, Component> convertor;
private final Predicate<ComponentLike> predicate;
private final Style rootStyle;
private JoinConfigurationImpl() {
this.prefix = null;
this.suffix = null;
this.separator = null;
this.lastSeparator = null;
this.lastSeparatorIfSerial = null;
this.convertor = DEFAULT_CONVERTOR;
this.predicate = DEFAULT_PREDICATE;
this.rootStyle = Style.empty();
}
private JoinConfigurationImpl(final @NotNull BuilderImpl builder) {
this.prefix = ComponentLike.unbox(builder.prefix);
this.suffix = ComponentLike.unbox(builder.suffix);
this.separator = ComponentLike.unbox(builder.separator);
this.lastSeparator = ComponentLike.unbox(builder.lastSeparator);
this.lastSeparatorIfSerial = ComponentLike.unbox(builder.lastSeparatorIfSerial);
this.convertor = builder.convertor;
this.predicate = builder.predicate;
this.rootStyle = builder.rootStyle;
}
@Override
public @Nullable Component prefix() {
return this.prefix;
}
@Override
public @Nullable Component suffix() {
return this.suffix;
}
@Override
public @Nullable Component separator() {
return this.separator;
}
@Override
public @Nullable Component lastSeparator() {
return this.lastSeparator;
}
@Override
public @Nullable Component lastSeparatorIfSerial() {
return this.lastSeparatorIfSerial;
}
@Override
public @NotNull Function<ComponentLike, Component> convertor() {
return this.convertor;
}
@Override
public @NotNull Predicate<ComponentLike> predicate() {
return this.predicate;
}
@Override
public @NotNull Style parentStyle() {
return this.rootStyle;
}
@Override
public JoinConfiguration.@NotNull Builder toBuilder() {
return new BuilderImpl(this);
}
@Override
public @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
return Stream.of(
ExaminableProperty.of("prefix", this.prefix),
ExaminableProperty.of("suffix", this.suffix),
ExaminableProperty.of("separator", this.separator),
ExaminableProperty.of("lastSeparator", this.lastSeparator),
ExaminableProperty.of("lastSeparatorIfSerial", this.lastSeparatorIfSerial),
ExaminableProperty.of("convertor", this.convertor),
ExaminableProperty.of("predicate", this.predicate),
ExaminableProperty.of("rootStyle", this.rootStyle)
);
}
@Override
public String toString() {
return Internals.toString(this);
}
@Contract(pure = true)
static @NotNull Component join(final @NotNull JoinConfiguration config, final @NotNull Iterable<? extends ComponentLike> components) {
Objects.requireNonNull(config, "config");
Objects.requireNonNull(components, "components");
final Iterator<? extends ComponentLike> it = components.iterator();
if (!it.hasNext()) {
return singleElementJoin(config, null);
}
ComponentLike component = Objects.requireNonNull(it.next(), "Null elements in \"components\" are not allowed");
int componentsSeen = 0;
if (!it.hasNext()) {
return singleElementJoin(
config,
component
);
}
final Component prefix = config.prefix();
final Component suffix = config.suffix();
final Function<ComponentLike, Component> convertor = config.convertor();
final Predicate<ComponentLike> predicate = config.predicate();
final Style rootStyle = config.parentStyle();
final boolean hasRootStyle = rootStyle != Style.empty();
final Component separator = config.separator();
final boolean hasSeparator = separator != null;
final TextComponent.Builder builder =
hasRootStyle ?
Component.text().style(rootStyle) :
Component.text();
if (prefix != null) builder.append(prefix);
while (component != null) {
if (!predicate.test(component)) {
if (it.hasNext()) {
component = it.next();
continue;
} else {
break;
}
}
builder.append(Objects.requireNonNull(convertor.apply(component), "Null output from \"convertor\" is not allowed"));
componentsSeen++;
if (!it.hasNext()) {
component = null;
} else {
component = Objects.requireNonNull(it.next(), "Null elements in \"components\" are not allowed");
if (it.hasNext()) {
if (hasSeparator) builder.append(separator);
} else {
Component lastSeparator = null;
if (componentsSeen > 1) lastSeparator = config.lastSeparatorIfSerial();
if (lastSeparator == null) lastSeparator = config.lastSeparator();
if (lastSeparator == null) lastSeparator = config.separator();
if (lastSeparator != null) builder.append(lastSeparator);
}
}
}
if (suffix != null) builder.append(suffix);
return builder.build();
}
static @NotNull Component singleElementJoin(final @NotNull JoinConfiguration config, final @Nullable ComponentLike component) {
final Component prefix = config.prefix();
final Component suffix = config.suffix();
final Function<ComponentLike, Component> convertor = config.convertor();
final Predicate<ComponentLike> predicate = config.predicate();
final Style rootStyle = config.parentStyle();
final boolean hasRootStyle = rootStyle != Style.empty();
if (prefix == null && suffix == null) {
final Component result;
if (component == null || !predicate.test(component)) {
result = Component.empty();
} else {
result = convertor.apply(component);
}
return hasRootStyle ? Component.text().style(rootStyle).append(result).build() : result;
}
final TextComponent.Builder builder = Component.text();
if (prefix != null) builder.append(prefix);
if (component != null && predicate.test(component)) builder.append(convertor.apply(component));
if (suffix != null) builder.append(suffix);
return hasRootStyle ? Component.text().style(rootStyle).append(builder).build() : builder.build();
}
static final class BuilderImpl implements JoinConfiguration.Builder {
private ComponentLike prefix;
private ComponentLike suffix;
private ComponentLike separator;
private ComponentLike lastSeparator;
private ComponentLike lastSeparatorIfSerial;
private Function<ComponentLike, Component> convertor;
private Predicate<ComponentLike> predicate;
private Style rootStyle;
BuilderImpl() {
this(JoinConfigurationImpl.NULL);
}
private BuilderImpl(final @NotNull JoinConfigurationImpl joinConfig) {
this.separator = joinConfig.separator;
this.lastSeparator = joinConfig.lastSeparator;
this.prefix = joinConfig.prefix;
this.suffix = joinConfig.suffix;
this.convertor = joinConfig.convertor;
this.lastSeparatorIfSerial = joinConfig.lastSeparatorIfSerial;
this.predicate = joinConfig.predicate;
this.rootStyle = joinConfig.rootStyle;
}
@Override
public @NotNull Builder prefix(final @Nullable ComponentLike prefix) {
this.prefix = prefix;
return this;
}
@Override
public @NotNull Builder suffix(final @Nullable ComponentLike suffix) {
this.suffix = suffix;
return this;
}
@Override
public @NotNull Builder separator(final @Nullable ComponentLike separator) {
this.separator = separator;
return this;
}
@Override
public @NotNull Builder lastSeparator(final @Nullable ComponentLike lastSeparator) {
this.lastSeparator = lastSeparator;
return this;
}
@Override
public @NotNull Builder lastSeparatorIfSerial(final @Nullable ComponentLike lastSeparatorIfSerial) {
this.lastSeparatorIfSerial = lastSeparatorIfSerial;
return this;
}
@Override
public @NotNull Builder convertor(final @NotNull Function<ComponentLike, Component> convertor) {
this.convertor = Objects.requireNonNull(convertor, "convertor");
return this;
}
@Override
public @NotNull Builder predicate(final @NotNull Predicate<ComponentLike> predicate) {
this.predicate = Objects.requireNonNull(predicate, "predicate");
return this;
}
@Override
public @NotNull Builder parentStyle(final @NotNull Style parentStyle) {
this.rootStyle = Objects.requireNonNull(parentStyle, "rootStyle");
return this;
}
@Override
public @NotNull JoinConfiguration build() {
return new JoinConfigurationImpl(this);
}
}
}