001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.runtime.optionhandler;
021
022import java.util.ArrayList;
023import java.util.List;
024
025import org.apache.commons.cli.CommandLine;
026
027import org.apache.isis.core.commons.components.Installer;
028import org.apache.isis.core.commons.lang.ListExtensions;
029
030public abstract class OptionHandlerAbstract implements OptionHandler {
031
032    public OptionHandlerAbstract() {
033    }
034
035    protected StringBuffer availableInstallers(final Object[] factories) {
036        final StringBuffer types = new StringBuffer();
037        for (int i = 0; i < factories.length; i++) {
038            if (i > 0) {
039                types.append("; ");
040            }
041            types.append(((Installer) factories[i]).getName());
042        }
043        return types;
044    }
045
046    protected List<String> getOptionValues(final CommandLine commandLine, final String opt) {
047        final List<String> list = new ArrayList<String>();
048        final String[] optionValues = commandLine.getOptionValues(opt);
049        if (optionValues != null) {
050            for (final String optionValue : optionValues) {
051                ListExtensions.appendDelimitedStringToList(optionValue, list);
052            }
053        }
054        return list;
055    }
056
057}