com.viadee.acceptancetests.roo.addon.StoryGroupConverter.java Source code

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Here is the source code for com.viadee.acceptancetests.roo.addon.StoryGroupConverter.java

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//  Copyright 2009 viadee Unternehmensberatung GmbH / Andreas Simon
//   
//  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.viadee.acceptancetests.roo.addon;

import java.io.File;
import java.util.List;
import java.util.SortedSet;

import org.springframework.roo.file.monitor.event.FileDetails;
import org.springframework.roo.process.manager.FileManager;
import org.springframework.roo.project.Path;
import org.springframework.roo.project.PathResolver;
import org.springframework.roo.shell.Converter;
import org.springframework.roo.shell.MethodTarget;
import org.springframework.roo.support.lifecycle.ScopeDevelopmentShell;

@ScopeDevelopmentShell
public class StoryGroupConverter implements Converter {

    private static final int STORY_FILE_SUFFIX_LENGTH = "Stories.java".length();
    private FileManager _fileManager;
    private AcceptanceTestsUtils _acceptanceTestsUtils;
    private PathResolver _pathResolver;

    public StoryGroupConverter(FileManager fileManager, AcceptanceTestsUtils acceptanceTestsUtils) {
        super();
        _fileManager = fileManager;
        _acceptanceTestsUtils = acceptanceTestsUtils;
        _pathResolver = _acceptanceTestsUtils.projectMetadata().getPathResolver();
    }

    public boolean supports(Class<?> requiredType, String optionContext) {
        return requiredType.equals(StoryGroup.class);
    }

    public Object convertFromText(String value, Class<?> requiredType, String optionContext) {
        if (value == null || value.length() == 0) {
            return StoryGroup.GENERAL;
        }
        return new StoryGroup(value);
    }

    public boolean getAllPossibleValues(List<String> completions, Class<?> requiredType, String existingData,
            String optionContext, MethodTarget target) {
        completions.add("General");
        addExistingStoryGroups(completions);
        return true;
    }

    private void addExistingStoryGroups(List<String> completions) {
        if (_acceptanceTestsUtils.projectMetadata() == null) {
            return;
        }

        SortedSet<FileDetails> candidates = _fileManager.findMatchingAntPath(storyGroupSearchPath());

        for (FileDetails fileIdentifier : candidates) {
            completions.add(getGroupNameFromFileIdentifier(fileIdentifier));
        }
    }

    private String getGroupNameFromFileIdentifier(FileDetails fileIdentifier) {
        String relativeSegment = _pathResolver.getRelativeSegment(fileIdentifier.getCanonicalPath());
        int groupNameBeginIndex = relativeSegment.lastIndexOf(File.separator) + 1;
        return relativeSegment.substring(groupNameBeginIndex, relativeSegment.length() - STORY_FILE_SUFFIX_LENGTH);
    }

    private String storyGroupSearchPath() {
        return _pathResolver.getRoot(Path.SRC_TEST_JAVA) + File.separatorChar
                + _acceptanceTestsUtils.acceptancetestsPackageName().replace(".", File.separator) + File.separator
                + "*Stories.java";
    }
}