com.googlecode.t7mp.configuration.Artifacts.java Source code

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Here is the source code for com.googlecode.t7mp.configuration.Artifacts.java

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/**
 * Copyright (C) 2010-2012 Joerg Bellmann <joerg.bellmann@googlemail.com>
 *
 * 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.googlecode.t7mp.configuration;

import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
import com.googlecode.t7mp.AbstractArtifact;

/**
 * 
 * @author Joerg Bellmann
 *
 */
public final class Artifacts {

    private static final int ZERO = 0;
    private static final int ONE = 1;
    private static final int TWO = 2;
    private static final int THREE = 3;
    private static final int FOUR = 4;
    private static final int FIVE = 5;

    private Artifacts() {
        // hide constructor
    }

    public static AbstractArtifact fromCoordinates(String coordinates) {
        Iterable<String> splitted = Splitter.on(':').omitEmptyStrings().trimResults().split(coordinates);
        String[] strings = Iterables.toArray(splitted, String.class);
        if (strings.length < THREE || strings.length > FIVE) {
            throw new InvalidCoordinatesException(coordinates);
        } else {
            String extension = "jar"; //DEFAULT
            String classifier = null; //DEFAULT
            String groupId = strings[ZERO];
            String artifactId = strings[ONE];
            String version = strings[strings.length - ONE];
            if (strings.length == FOUR) {
                extension = strings[TWO];
            }
            if (strings.length == FIVE) {
                classifier = strings[THREE];
            }
            return new DefaultArtifact(groupId, artifactId, version, classifier, extension);
        }
    }

    static final class DefaultArtifact extends AbstractArtifact {

        private String type;

        DefaultArtifact(String groupId, String artifactId, String version, String classifier, String type) {
            super(groupId, artifactId, version, classifier, type);
            this.type = type;
        }

        @Override
        public String getType() {
            return type;
        }
    }

}