com.aspectran.shell.jline.console.CommandCompleter Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2019 The Aspectran Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.aspectran.shell.jline.console;
import com.aspectran.core.component.translet.TransletRuleRegistry;
import com.aspectran.core.context.rule.TransletRule;
import com.aspectran.shell.command.Command;
import com.aspectran.shell.command.CommandRegistry;
import com.aspectran.shell.command.option.Arguments;
import com.aspectran.shell.command.option.HelpFormatter;
import com.aspectran.shell.command.option.Option;
import com.aspectran.shell.console.Console;
import com.aspectran.shell.service.ShellService;
import org.jline.reader.Candidate;
import org.jline.reader.Completer;
import org.jline.reader.LineReader;
import org.jline.reader.ParsedLine;
import java.util.List;
/**
* Command and option name autocompleter.
*
* Created: 17/11/2018
*
* @since 5.8.0
*/
public class CommandCompleter implements Completer {
private final Console console;
private boolean limited;
public CommandCompleter(Console console) {
if (console == null) {
throw new IllegalArgumentException("console must not be null");
}
this.console = console;
}
public boolean isLimited() {
return limited;
}
public void setLimited(boolean limited) {
this.limited = limited;
}
@Override
public void complete(LineReader reader, ParsedLine line, List candidates) {
if (!isLimited() && console.getInterpreter() != null) {
if (line.wordIndex() == 0) {
makeCommandCandidates(line.word(), candidates);
makeTransletCandidates(line.word(), candidates);
} else if (line.wordIndex() > 0) {
String word = line.words().get(0);
makeArgumentsCandidates(word, line.word(), candidates);
}
}
}
private void makeCommandCandidates(String word, List candidates) {
CommandRegistry commandRegistry = console.getInterpreter().getCommandRegistry();
if (commandRegistry != null) {
for (Command command : commandRegistry.getAllCommands()) {
String name = command.getDescriptor().getName();
if (word == null || name.startsWith(word) ||
(name + JLineConsole.MULTILINE_DELIMITER).startsWith(word)) {
candidates.add(new Candidate(name, name, command.getDescriptor().getNamespace(),
null, null, null, true));
}
}
}
}
private void makeArgumentsCandidates(String word, String opt, List candidates) {
CommandRegistry commandRegistry = console.getInterpreter().getCommandRegistry();
if (commandRegistry != null) {
Command command = commandRegistry.getCommand(word);
if (command != null) {
for (Option option : command.getOptions().getAllOptions()) {
String shortName = null;
if (option.getName() != null) {
shortName = HelpFormatter.OPTION_PREFIX + option.getName();
}
String longName = null;
if (option.getLongName() != null) {
longName = HelpFormatter.LONG_OPTION_PREFIX + option.getLongName();
}
String dispName;
if (shortName != null && longName != null) {
dispName = shortName + "," + longName;
} else if (shortName != null) {
dispName = shortName;
} else {
dispName = longName;
}
if (shortName != null && (opt == null || shortName.indexOf(opt) == 0)) {
candidates.add(new Candidate(shortName, dispName,
command.getOptions().getTitle(), null, null, longName, false));
} else if (longName != null && (opt == null || longName.indexOf(opt) == 0)) {
candidates.add(new Candidate(longName, dispName,
command.getOptions().getTitle(), null, null, null, false));
}
}
for (Arguments arguments : command.getArgumentsList()) {
if (arguments.getTitle() != null) {
for (String name : arguments.keySet()) {
if (!name.startsWith("<") || !name.endsWith(">")) {
candidates.add(new Candidate(name, name,
arguments.getTitle(), null, null, null, false));
}
}
}
}
}
}
}
private void makeTransletCandidates(String word, List candidates) {
ShellService service = console.getInterpreter().getService();
if (service != null && service.getServiceController().isActive()) {
TransletRuleRegistry transletRuleRegistry = service.getActivityContext().getTransletRuleRegistry();
for (TransletRule transletRule : transletRuleRegistry.getTransletRules()) {
String name = transletRule.getName();
String dispName = name;
if (service.isExposable(name)) {
if (word == null || name.startsWith(word)) {
if (transletRule.hasPathVariables()) {
name = transletRule.getNamePattern().toString();
name = name.replaceAll(" [*\\+\\?] | [*\\+\\?]$|[*\\+\\?]", " ").trim();
}
if (!name.isEmpty()) {
candidates.add(new Candidate(name, dispName, "translets",
null, null, null, true));
}
}
}
}
}
}
}