io.joshworks.snappy.maven.RunArguments Maven / Gradle / Ivy

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/*
 * Copyright 2012-2015 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 io.joshworks.snappy.maven;

import org.codehaus.plexus.util.cli.CommandLineUtils;

import java.util.Arrays;
import java.util.LinkedList;

/**
 * Parse and expose arguments specified in a single string.
 *
 * @author Stephane Nicoll
 * @since 1.1.0
 */
class RunArguments {

    private static final String[] NO_ARGS = {};

    private final LinkedList args;

    RunArguments(String arguments) {
        this(parseArgs(arguments));
    }

    RunArguments(String[] args) {
        this.args = new LinkedList(Arrays.asList(args));
    }

    private static String[] parseArgs(String arguments) {
        if (arguments == null || arguments.trim().isEmpty()) {
            return NO_ARGS;
        }
        try {
            arguments = arguments.replace('\n', ' ').replace('\t', ' ');
            return CommandLineUtils.translateCommandline(arguments);
        } catch (Exception ex) {
            throw new IllegalArgumentException(
                    "Failed to parse arguments [" + arguments + "]", ex);
        }
    }

    public LinkedList getArgs() {
        return this.args;
    }

    public String[] asArray() {
        return this.args.toArray(new String[this.args.size()]);
    }

}