org.codehaus.mojo.jdiff.JDiffUtils.java Source code

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Here is the source code for org.codehaus.mojo.jdiff.JDiffUtils.java

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package org.codehaus.mojo.jdiff;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.FileUtils;

/**
 * Utility-class for this plugin. 
 */
public class JDiffUtils {
    private JDiffUtils() {
        // hide constructor of utility class
    }

    public static List<String> getProjectSourceRoots(MavenProject p, List<String> compileSourceRoots) {
        if ("pom".equals(p.getPackaging().toLowerCase())) {
            return Collections.emptyList();
        }
        return (compileSourceRoots == null ? Collections.<String>emptyList()
                : new LinkedList<String>(compileSourceRoots));
    }

    public static List<String> getClasspathElements(MavenProject project) {
        List<String> classpathElements = new ArrayList<String>();

        for (Artifact a : (List<Artifact>) project.getCompileArtifacts()) {
            classpathElements.add(a.getFile().getPath());
        }
        return classpathElements;
    }

    public static Set<String> getPackages(File basedir, List<String> compileSourceRoots) {
        Set<String> packages = new HashSet<String>();
        for (String compileRoot : compileSourceRoots) {
            try {
                List<String> files = FileUtils.getFileNames(FileUtils.resolveFile(basedir, compileRoot),
                        "**/*.java", null, false);
                for (String file : files) {
                    packages.add(FileUtils.dirname(file).replace(File.separatorChar, '.'));
                }
            } catch (IOException e) {
                // do nothing
            }
        }
        return packages;
    }
}