com.github.rvesse.airline.help.suggester.CommandSuggester Maven / Gradle / Ivy

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Java library provided an annotation-based framework for parsing Git like command line structures

There is a newer version: 3.0.0

/**
 * Copyright (C) 2010-15 the original author or authors.
 *
 * 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.github.rvesse.airline.help.suggester;

import java.util.ArrayList;
import java.util.List;

import com.github.rvesse.airline.model.CommandMetadata;
import com.github.rvesse.airline.model.MetadataLoader;
import com.github.rvesse.airline.model.OptionMetadata;
import com.github.rvesse.airline.model.ParserMetadata;

import javax.inject.Inject;

import org.apache.commons.collections4.ListUtils;

public class CommandSuggester
        implements Suggester
{
    @Inject
    public CommandMetadata command;

    @Override
    public Iterable suggest()
    {
        List suggestions = new ArrayList();
        for (OptionMetadata option : command.getCommandOptions()) {
            suggestions.addAll(option.getOptions());
        }

        if (command.getArguments() != null) {
            // Include arguments separator
            ParserMetadata parserConfig = MetadataLoader.loadParser(command.getType());
            suggestions.add(parserConfig.getArgumentsSeparator());
        }

        return ListUtils.unmodifiableList(suggestions);
    }
}