CliImpl.java

/*
 * Copyright 2006 Tim Wood
 *
 * 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 org.caudexorigo.cli;

class CliImpl<O> implements Cli<O>
{
	private final OptionsSpecification<O> m_specification;
	private final Class<O> m_klass;

	public CliImpl(final Class<O> klass)
	{
		m_specification = new OptionsSpecificationImpl<O>(klass);
		m_klass = klass;
	}

	/**
	 * @inheritdoc
	 */
	public O parseArguments(final String... arguments) throws ArgumentValidationException
	{
		final ValidatedArguments validatedArguments = new ArgumentValidatorImpl<O>(m_specification).validateArguments(new ArgumentParserImpl(arguments).parseArguments());
		final TypedArguments typedArguments = new ArgumentTyperImpl<O>(m_specification).typeArguments(validatedArguments);
		return new ArgumentPresenterImpl<O>(m_klass, m_specification).presentArguments(typedArguments);
	}

	/**
	 * @inheritdoc
	 */
	public String getHelpMessage()
	{
		return m_specification.toString();
	}
}