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Move DisplayHandler impls into their own package.

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This commit is contained in:
Jeremy Wood 2021-07-06 15:48:39 -04:00
parent fd896210c5
commit 44248b4178
5 changed files with 207 additions and 142 deletions
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150
src/main/java/com/onarandombox/MultiverseCore/display/DisplayHandlers.java
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@ -1,18 +1,13 @@
package com.onarandombox.MultiverseCore.display;
import org.bukkit.ChatColor;
import org.bukkit.command.ConsoleCommandSender;
import org.jetbrains.annotations.NotNull;
import com.onarandombox.MultiverseCore.display.handlers.InlineListDisplayHandler;
import com.onarandombox.MultiverseCore.display.handlers.InlineMapDisplayHandler;
import com.onarandombox.MultiverseCore.display.handlers.ListDisplayHandler;
import com.onarandombox.MultiverseCore.display.handlers.PagedListDisplayHandler;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
/**
* Various implementations of {@link DisplayHandler}.
@ -24,10 +19,7 @@ public class DisplayHandlers {
*
* Supported settings: none.
*/
public static final DisplayHandler<Collection<String>> LIST = display -> display.getContents().stream()
.filter(display.getFilter()::checkMatch)
.map(s -> (ContentDisplay.LINE_BREAK.equals(s)) ? "" : display.getColorTool().get() + s)
.collect(Collectors.toList());
public static final DisplayHandler<Collection<String>> LIST = new ListDisplayHandler();
/**
* List display with paging.
@ -35,145 +27,19 @@ public class DisplayHandlers {
* Supported settings: {@link DisplaySettings#SHOW_PAGE}, {@link DisplaySettings#LINES_PER_PAGE},
* {@link DisplaySettings#PAGE_IN_CONSOLE}, {@link DisplaySettings#DO_END_PADDING}.
*/
public static final DisplayHandler<Collection<String>> PAGE_LIST = new DisplayHandler<Collection<String>>() {
@Override
public Collection<String> format(@NotNull ContentDisplay<Collection<String>> display) throws DisplayFormatException {
if (dontNeedPaging(display)) {
return LIST.format(display);
}
int pages = 1;
int currentLength = 0;
int targetPage = display.getSetting(DisplaySettings.SHOW_PAGE);
int linesPerPage = display.getSetting(DisplaySettings.LINES_PER_PAGE);
List<String> content = new ArrayList<>(linesPerPage);
// Calculate the paging.
for (String line : display.getContents()) {
if (!display.getFilter().checkMatch(line)) {
continue;
}
// When it's the next page.
boolean isLineBreak = ContentDisplay.LINE_BREAK.equals(line);
if (isLineBreak || ++currentLength > linesPerPage) {
pages++;
currentLength = 0;
if (isLineBreak) {
continue;
}
}
if (pages == targetPage) {
// Let first line be the header when no header is defined.
if (display.getHeader() == null) {
display.setHeader(line);
currentLength--;
continue;
}
content.add(display.getColorTool().get() + line);
}
}
// Page out of range.
if (targetPage < 1 || targetPage > pages) {
if (pages == 1) {
throw new DisplayFormatException("There is only 1 page!");
}
throw new DisplayFormatException("Please enter a page from 1 to " + pages + ".");
}
// No content
if (content.size() == 0) {
content.add(display.getEmptyMessage());
}
// Add empty lines to make output length consistent.
if (display.getSetting(DisplaySettings.DO_END_PADDING)) {
IntStream.range(0, linesPerPage - content.size()).forEach(i -> content.add(""));
}
display.setSetting(DisplaySettings.TOTAL_PAGE, pages);
return content;
}
@Override
public void sendSubHeader(@NotNull ContentDisplay<Collection<String>> display) {
if (dontNeedPaging(display)) {
LIST.sendSubHeader(display);
return;
}
if (display.getFilter().hasFilter()) {
display.getSender().sendMessage(String.format("%s[ Page %s of %s, %s ]",
ChatColor.GRAY,
display.getSetting(DisplaySettings.SHOW_PAGE),
display.getSetting(DisplaySettings.TOTAL_PAGE),
display.getFilter().getFormattedString())
);
return;
}
display.getSender().sendMessage(String.format("%s[ Page %s of %s ]",
ChatColor.GRAY,
display.getSetting(DisplaySettings.SHOW_PAGE),
display.getSetting(DisplaySettings.TOTAL_PAGE))
);
}
private boolean dontNeedPaging(ContentDisplay<Collection<String>> display) {
return display.getSender() instanceof ConsoleCommandSender
&& !display.getSetting(DisplaySettings.PAGE_IN_CONSOLE);
}
};
public static final DisplayHandler<Collection<String>> PAGE_LIST = new PagedListDisplayHandler();
/**
* Display a list inline.
*
* Supported settings: {@link DisplaySettings#SEPARATOR}.
*/
public static final DisplayHandler<Collection<String>> INLINE_LIST = display -> {
StringBuilder builder = new StringBuilder();
String separator = display.getSetting(DisplaySettings.SEPARATOR);
for (Iterator<String> iterator = display.getContents().iterator(); iterator.hasNext(); ) {
String content = iterator.next();
if (!display.getFilter().checkMatch(content)) {
continue;
}
builder.append(display.getColorTool().get()).append(content);
if (iterator.hasNext()) {
builder.append(separator);
}
}
return (builder.length() == 0)
? Collections.singletonList(display.getEmptyMessage())
: Collections.singleton(builder.toString());
};
public static final DisplayHandler<Collection<String>> INLINE_LIST = new InlineListDisplayHandler();
/**
* Display key value pair inline.
*
* Supported settings: {@link DisplaySettings#SEPARATOR}, {@link DisplaySettings#OPERATOR}.
*/
public static final DisplayHandler<Map<String, Object>> INLINE_MAP = display -> {
StringBuilder builder = new StringBuilder();
String separator = display.getSetting(DisplaySettings.SEPARATOR);
String operator = display.getSetting(DisplaySettings.OPERATOR);
for (Iterator<Entry<String, Object>> iterator = display.getContents().entrySet().iterator(); iterator.hasNext(); ) {
Entry<String, Object> entry = iterator.next();
if (!display.getFilter().checkMatch(entry.getKey()) && !display.getFilter().checkMatch(entry.getValue())) {
continue;
}
builder.append(display.getColorTool().get())
.append(entry.getKey())
.append(operator)
.append(display.getColorTool().get())
.append(entry.getValue());
if (iterator.hasNext()) {
builder.append(separator);
}
}
return (builder.length() == 0)
? Collections.singletonList(display.getEmptyMessage())
: Collections.singleton(builder.toString());
};
public static final DisplayHandler<Map<String, Object>> INLINE_MAP = new InlineMapDisplayHandler();
}

35
src/main/java/com/onarandombox/MultiverseCore/display/handlers/InlineListDisplayHandler.java Normal file
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@ -0,0 +1,35 @@
package com.onarandombox.MultiverseCore.display.handlers;
import com.onarandombox.MultiverseCore.display.ContentDisplay;
import com.onarandombox.MultiverseCore.display.DisplayFormatException;
import com.onarandombox.MultiverseCore.display.DisplayHandler;
import com.onarandombox.MultiverseCore.display.DisplaySettings;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
public class InlineListDisplayHandler implements DisplayHandler<Collection<String>> {
@Override
public Collection<String> format(@NotNull ContentDisplay<Collection<String>> display)
throws DisplayFormatException {
StringBuilder builder = new StringBuilder();
String separator = display.getSetting(DisplaySettings.SEPARATOR);
for (Iterator<String> iterator = display.getContents().iterator(); iterator.hasNext(); ) {
String content = iterator.next();
if (!display.getFilter().checkMatch(content)) {
continue;
}
builder.append(display.getColorTool().get()).append(content);
if (iterator.hasNext()) {
builder.append(separator);
}
}
return (builder.length() == 0)
? Collections.singletonList(display.getEmptyMessage())
: Collections.singleton(builder.toString());
}
}

41
src/main/java/com/onarandombox/MultiverseCore/display/handlers/InlineMapDisplayHandler.java Normal file
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@ -0,0 +1,41 @@
package com.onarandombox.MultiverseCore.display.handlers;
import com.onarandombox.MultiverseCore.display.ContentDisplay;
import com.onarandombox.MultiverseCore.display.DisplayFormatException;
import com.onarandombox.MultiverseCore.display.DisplayHandler;
import com.onarandombox.MultiverseCore.display.DisplaySettings;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
public class InlineMapDisplayHandler implements DisplayHandler<Map<String, Object>> {
@Override
public Collection<String> format(@NotNull ContentDisplay<Map<String, Object>> display)
throws DisplayFormatException {
StringBuilder builder = new StringBuilder();
String separator = display.getSetting(DisplaySettings.SEPARATOR);
String operator = display.getSetting(DisplaySettings.OPERATOR);
for (Iterator<Map.Entry<String, Object>> iterator = display.getContents().entrySet().iterator(); iterator.hasNext(); ) {
Map.Entry<String, Object> entry = iterator.next();
if (!display.getFilter().checkMatch(entry.getKey()) && !display.getFilter().checkMatch(entry.getValue())) {
continue;
}
builder.append(display.getColorTool().get())
.append(entry.getKey())
.append(operator)
.append(display.getColorTool().get())
.append(entry.getValue());
if (iterator.hasNext()) {
builder.append(separator);
}
}
return (builder.length() == 0)
? Collections.singletonList(display.getEmptyMessage())
: Collections.singleton(builder.toString());
}
}

20
src/main/java/com/onarandombox/MultiverseCore/display/handlers/ListDisplayHandler.java Normal file
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@ -0,0 +1,20 @@
package com.onarandombox.MultiverseCore.display.handlers;
import com.onarandombox.MultiverseCore.display.ContentDisplay;
import com.onarandombox.MultiverseCore.display.DisplayFormatException;
import com.onarandombox.MultiverseCore.display.DisplayHandler;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.stream.Collectors;
public class ListDisplayHandler implements DisplayHandler<Collection<String>> {
@Override
public Collection<String> format(@NotNull ContentDisplay<Collection<String>> display) throws DisplayFormatException {
return display.getContents().stream()
.filter(display.getFilter()::checkMatch)
.map(s -> (ContentDisplay.LINE_BREAK.equals(s)) ? "" : display.getColorTool().get() + s)
.collect(Collectors.toList());
}
}

103
src/main/java/com/onarandombox/MultiverseCore/display/handlers/PagedListDisplayHandler.java Normal file
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@ -0,0 +1,103 @@
package com.onarandombox.MultiverseCore.display.handlers;
import com.onarandombox.MultiverseCore.display.ContentDisplay;
import com.onarandombox.MultiverseCore.display.DisplayFormatException;
import com.onarandombox.MultiverseCore.display.DisplaySettings;
import org.bukkit.ChatColor;
import org.bukkit.command.ConsoleCommandSender;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.stream.IntStream;
public class PagedListDisplayHandler extends ListDisplayHandler {
@Override
public Collection<String> format(@NotNull ContentDisplay<Collection<String>> display) throws DisplayFormatException {
if (dontNeedPaging(display)) {
return super.format(display);
}
int pages = 1;
int currentLength = 0;
int targetPage = display.getSetting(DisplaySettings.SHOW_PAGE);
int linesPerPage = display.getSetting(DisplaySettings.LINES_PER_PAGE);
List<String> content = new ArrayList<>(linesPerPage);
// Calculate the paging.
for (String line : display.getContents()) {
if (!display.getFilter().checkMatch(line)) {
continue;
}
// When it's the next page.
boolean isLineBreak = ContentDisplay.LINE_BREAK.equals(line);
if (isLineBreak || ++currentLength > linesPerPage) {
pages++;
currentLength = 0;
if (isLineBreak) {
continue;
}
}
if (pages == targetPage) {
// Let first line be the header when no header is defined.
if (display.getHeader() == null) {
display.setHeader(line);
currentLength--;
continue;
}
content.add(display.getColorTool().get() + line);
}
}
// Page out of range.
if (targetPage < 1 || targetPage > pages) {
if (pages == 1) {
throw new DisplayFormatException("There is only 1 page!");
}
throw new DisplayFormatException("Please enter a page from 1 to " + pages + ".");
}
// No content
if (content.size() == 0) {
content.add(display.getEmptyMessage());
}
// Add empty lines to make output length consistent.
if (display.getSetting(DisplaySettings.DO_END_PADDING)) {
IntStream.range(0, linesPerPage - content.size()).forEach(i -> content.add(""));
}
display.setSetting(DisplaySettings.TOTAL_PAGE, pages);
return content;
}
@Override
public void sendSubHeader(@NotNull ContentDisplay<Collection<String>> display) {
if (dontNeedPaging(display)) {
super.sendSubHeader(display);
return;
}
if (display.getFilter().hasFilter()) {
display.getSender().sendMessage(String.format("%s[ Page %s of %s, %s ]",
ChatColor.GRAY,
display.getSetting(DisplaySettings.SHOW_PAGE),
display.getSetting(DisplaySettings.TOTAL_PAGE),
display.getFilter().getFormattedString())
);
return;
}
display.getSender().sendMessage(String.format("%s[ Page %s of %s ]",
ChatColor.GRAY,
display.getSetting(DisplaySettings.SHOW_PAGE),
display.getSetting(DisplaySettings.TOTAL_PAGE))
);
}
private boolean dontNeedPaging(ContentDisplay<Collection<String>> display) {
return display.getSender() instanceof ConsoleCommandSender
&& !display.getSetting(DisplaySettings.PAGE_IN_CONSOLE);
}
}