+++ /dev/null
-package org.scannotation.classpath;
-
-import java.io.File;
-import java.io.IOException;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.StringTokenizer;
-
-/**
- * Various functions to locate URLs to scan
- *
- * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
- * @version $Revision: 1 $
- */
-public class ClasspathUrlFinder
-{
-
- /**
- * Find the classpath URLs for a specific classpath resource. The classpath URL is extracted
- * from loader.getResources() using the baseResource.
- *
- * @param baseResource
- * @return
- */
- public static URL[] findResourceBases(String baseResource, ClassLoader loader)
- {
- ArrayList<URL> list = new ArrayList<URL>();
- try
- {
- Enumeration<URL> urls = loader.getResources(baseResource);
- while (urls.hasMoreElements())
- {
- URL url = urls.nextElement();
- list.add(findResourceBase(url, baseResource));
- }
- }
- catch (IOException e)
- {
- throw new RuntimeException(e);
- }
- return list.toArray(new URL[list.size()]);
- }
-
- /**
- * Find the classpath URLs for a specific classpath resource. The classpath URL is extracted
- * from loader.getResources() using the baseResource.
- *
- * @param baseResource
- * @return
- */
- public static URL[] findResourceBases(String baseResource)
- {
- return findResourceBases(baseResource, Thread.currentThread().getContextClassLoader());
- }
-
- private static URL findResourceBase(URL url, String baseResource)
- {
- String urlString = url.toString();
- int idx = urlString.lastIndexOf(baseResource);
- urlString = urlString.substring(0, idx);
- URL deployUrl = null;
- try
- {
- deployUrl = new URL(urlString);
- }
- catch (MalformedURLException e)
- {
- throw new RuntimeException(e);
- }
- return deployUrl;
- }
-
- /**
- * Find the classpath URL for a specific classpath resource. The classpath URL is extracted
- * from Thread.currentThread().getContextClassLoader().getResource() using the baseResource.
- *
- * @param baseResource
- * @return
- */
- public static URL findResourceBase(String baseResource)
- {
- return findResourceBase(baseResource, Thread.currentThread().getContextClassLoader());
- }
-
- /**
- * Find the classpath URL for a specific classpath resource. The classpath URL is extracted
- * from loader.getResource() using the baseResource.
- *
- * @param baseResource
- * @param loader
- * @return
- */
- public static URL findResourceBase(String baseResource, ClassLoader loader)
- {
- URL url = loader.getResource(baseResource);
- return findResourceBase(url, baseResource);
- }
-
- /**
- * Find the classpath for the particular class
- *
- * @param clazz
- * @return
- */
- public static URL findClassBase(Class clazz)
- {
- String resource = clazz.getName().replace('.', '/') + ".class";
- return findResourceBase(resource, clazz.getClassLoader());
- }
-
- /**
- * Uses the java.class.path system property to obtain a list of URLs that represent the CLASSPATH
- *
- * @return
- */
- public static URL[] findClassPaths()
- {
- List<URL> list = new ArrayList<URL>();
- String classpath = System.getProperty("java.class.path");
- StringTokenizer tokenizer = new StringTokenizer(classpath, File.pathSeparator);
-
- while (tokenizer.hasMoreTokens())
- {
- String path = tokenizer.nextToken();
- File fp = new File(path);
- if (!fp.exists()) throw new RuntimeException("File in java.class.path does not exist: " + fp);
- try
- {
- list.add(fp.toURL());
- }
- catch (MalformedURLException e)
- {
- throw new RuntimeException(e);
- }
- }
- return list.toArray(new URL[list.size()]);
- }
-
- /**
- * Uses the java.class.path system property to obtain a list of URLs that represent the CLASSPATH
- * <p/>
- * paths is used as a filter to only include paths that have the specific relative file within it
- *
- * @param paths comma list of files that should exist in a particular path
- * @return
- */
- public static URL[] findClassPaths(String... paths)
- {
- ArrayList<URL> list = new ArrayList<URL>();
-
- String classpath = System.getProperty("java.class.path");
- StringTokenizer tokenizer = new StringTokenizer(classpath, File.pathSeparator);
- for (int i = 0; i < paths.length; i++)
- {
- paths[i] = paths[i].trim();
- }
-
- while (tokenizer.hasMoreTokens())
- {
- String path = tokenizer.nextToken().trim();
- boolean found = false;
- for (String wantedPath : paths)
- {
- if (path.endsWith(File.separator + wantedPath))
- {
- found = true;
- break;
- }
- }
- if (!found) continue;
- File fp = new File(path);
- if (!fp.exists()) throw new RuntimeException("File in java.class.path does not exists: " + fp);
- try
- {
- list.add(fp.toURL());
- }
- catch (MalformedURLException e)
- {
- throw new RuntimeException(e);
- }
- }
- return list.toArray(new URL[list.size()]);
- }
-
-
-}
-