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package io.dico.dicore.command;
import io.dico.dicore.command.predef.DefaultGroupCommand;
import io.dico.dicore.command.predef.HelpCommand;
import java.util.*;
public class ChildCommandAddress extends ModifiableCommandAddress {
ModifiableCommandAddress parent;
final List<String> namesModifiable = new ArrayList<>(4);
List<String> names = namesModifiable;
Command command;
boolean isCommandTrailing;
public ChildCommandAddress() {
}
public ChildCommandAddress(Command command) {
this.command = command;
}
public ChildCommandAddress(Command command, String name, String... aliases) {
this(command);
addNameAndAliases(name, aliases);
}
public static ChildCommandAddress newPlaceHolderCommand(String name, String... aliases) {
ChildCommandAddress rv = new ChildCommandAddress();
rv.setupAsPlaceholder(name, aliases);
return rv;
}
public void setupAsPlaceholder(String name, String... aliases) {
if (!hasCommand()) {
setCommand(DefaultGroupCommand.getInstance());
}
addNameAndAliases(name, aliases);
HelpCommand.registerAsChild(this);
}
@Override
public boolean isRoot() {
return false;
}
@Override
public ModifiableCommandAddress getParent() {
return parent;
}
@Override
public Command getCommand() {
return command;
}
@Override
public void setCommand(Command command) {
if (hasUserDeclaredCommand()) {
throw new IllegalStateException("Command is already set at address \"" + getAddress() + "\"");
}
this.command = command;
}
@Override
public List<String> getNames() {
return names;
}
public void addNameAndAliases(String name, String... aliases) {
names.add(name);
names.addAll(Arrays.asList(aliases));
}
@Override
public String getMainKey() {
return namesModifiable.isEmpty() ? null : namesModifiable.get(0);
}
@Override
public String getAddress() {
ICommandAddress address = this;
int depth = getDepth();
String[] keys = new String[depth];
for (int i = depth - 1; i >= 0; i--) {
keys[i] = address.getMainKey();
address = address.getParent();
}
return String.join(" ", keys);
}
public void finalizeNames() {
if (names == namesModifiable) {
names = Collections.unmodifiableList(namesModifiable);
}
}
Iterator<String> modifiableNamesIterator() {
return namesModifiable.iterator();
}
void setParent(ModifiableCommandAddress parent) {
finalizeNames();
this.parent = parent;
}
@Override
public boolean isCommandTrailing() {
return isCommandTrailing;
}
@Override
public void setCommandTrailing(boolean trailing) {
if (hasChildren()) {
throw new IllegalStateException("Address already has children, this property can't be modified");
}
isCommandTrailing = trailing;
}
}
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