Java Class from Package getClasses(String pkg)

Description

Returns a set of all class files for given package.

License

Apache License

Parameter

Parameter	Description
pkg	the package

Exception

Parameter	Description
URISyntaxException	an exception
IOException	an exception

Return

set of classes

Declaration

public static Set<File> getClasses(String pkg) throws URISyntaxException, IOException 

Method Source Code

//package com.java2s;
/*  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./*from   w w  w . ja v a 2 s.co m*/
 */

import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class Main {
    /**
     * Returns a set of all class files for given package.
     * 
     * @param pkg        the package
     * @return           set of classes
     * @throws URISyntaxException
     * @throws IOException
     */
    public static Set<File> getClasses(String pkg) throws URISyntaxException, IOException {
        Set<File> classes = new HashSet<File>();

        ClassLoader cl = Thread.currentThread().getContextClassLoader();

        List<URL> urls = Collections.list(cl.getResources(pkg.replaceAll("\\.", "/")));
        for (URL url : urls) {
            File dir = new File(url.toURI());
            if (dir.isDirectory()) {
                for (File file : dir.listFiles()) {
                    if (file.isFile() && file.getAbsolutePath().endsWith(".class")) {
                        classes.add(file);
                    }
                }
            }
        }

        return classes;
    }
}

Related

1. getClasses(String packageName)
2. getClasses(String packageName)
3. getClasses(String packageName, Class inheritedType)
4. getClasses(String pckgname)
5. getClasses(String pckgname)
6. getClasses(String pkg)
7. getClassesForPackage(final String packageName)
8. getClassesForPackage(Package pkg)
9. getClassesForPackage(String packageName)