Examples with URLClassLoader java.net.URLClassLoader used on opensource projects

Example 21 with URLClassLoader

use of java.net.URLClassLoader in project jetty.project by eclipse.

the class ContextHandler method getClassPath.

/* ------------------------------------------------------------ */
/**
     * Make best effort to extract a file classpath from the context classloader
     *
     * @return Returns the classLoader.
     */
@ManagedAttribute("The file classpath")
public String getClassPath() {
    if (_classLoader == null || !(_classLoader instanceof URLClassLoader))
        return null;
    URLClassLoader loader = (URLClassLoader) _classLoader;
    URL[] urls = loader.getURLs();
    StringBuilder classpath = new StringBuilder();
    for (int i = 0; i < urls.length; i++) {
        try {
            Resource resource = newResource(urls[i]);
            File file = resource.getFile();
            if (file != null && file.exists()) {
                if (classpath.length() > 0)
                    classpath.append(File.pathSeparatorChar);
                classpath.append(file.getAbsolutePath());
            }
        } catch (IOException e) {
            LOG.debug(e);
        }
    }
    if (classpath.length() == 0)
        return null;
    return classpath.toString();
}

Example 22 with URLClassLoader

use of java.net.URLClassLoader in project zeppelin by apache.

the class DepInterpreter method classPath.

private List<File> classPath(ClassLoader cl) {
    List<File> paths = new LinkedList<>();
    if (cl == null) {
        return paths;
    }
    if (cl instanceof URLClassLoader) {
        URLClassLoader ucl = (URLClassLoader) cl;
        URL[] urls = ucl.getURLs();
        if (urls != null) {
            for (URL url : urls) {
                paths.add(new File(url.getFile()));
            }
        }
    }
    return paths;
}

Example 23 with URLClassLoader

use of java.net.URLClassLoader in project hadoop by apache.

the class TestEntityGroupFSTimelineStore method testPluginRead.

@Test
public void testPluginRead() throws Exception {
    // Verify precondition
    assertEquals(EntityGroupPlugInForTest.class.getName(), store.getConfig().get(YarnConfiguration.TIMELINE_SERVICE_ENTITY_GROUP_PLUGIN_CLASSES));
    List<TimelineEntityGroupPlugin> currPlugins = store.getPlugins();
    for (TimelineEntityGroupPlugin plugin : currPlugins) {
        ClassLoader pluginClassLoader = plugin.getClass().getClassLoader();
        assertTrue("Should set up ApplicationClassLoader", pluginClassLoader instanceof ApplicationClassLoader);
        URL[] paths = ((URLClassLoader) pluginClassLoader).getURLs();
        boolean foundJAR = false;
        for (URL path : paths) {
            if (path.toString().contains(testJar.getAbsolutePath())) {
                foundJAR = true;
            }
        }
        assertTrue("Not found path " + testJar.getAbsolutePath() + " for plugin " + plugin.getClass().getName(), foundJAR);
    }
    // Load data and cache item, prepare timeline store by making a cache item
    EntityGroupFSTimelineStore.AppLogs appLogs = store.new AppLogs(mainTestAppId, mainTestAppDirPath, AppState.COMPLETED);
    EntityCacheItem cacheItem = new EntityCacheItem(EntityGroupPlugInForTest.getStandardTimelineGroupId(mainTestAppId), config);
    cacheItem.setAppLogs(appLogs);
    store.setCachedLogs(EntityGroupPlugInForTest.getStandardTimelineGroupId(mainTestAppId), cacheItem);
    MutableCounterLong detailLogEntityRead = store.metrics.getGetEntityToDetailOps();
    MutableStat cacheRefresh = store.metrics.getCacheRefresh();
    long numEntityReadBefore = detailLogEntityRead.value();
    long cacheRefreshBefore = cacheRefresh.lastStat().numSamples();
    // Generate TDM
    TimelineDataManager tdm = PluginStoreTestUtils.getTdmWithStore(config, store);
    // Verify single entity read
    TimelineEntity entity3 = tdm.getEntity("type_3", mainTestAppId.toString(), EnumSet.allOf(TimelineReader.Field.class), UserGroupInformation.getLoginUser());
    assertNotNull(entity3);
    assertEquals(entityNew.getStartTime(), entity3.getStartTime());
    // Verify multiple entities read
    NameValuePair primaryFilter = new NameValuePair(EntityGroupPlugInForTest.APP_ID_FILTER_NAME, mainTestAppId.toString());
    TimelineEntities entities = tdm.getEntities("type_3", primaryFilter, null, null, null, null, null, null, EnumSet.allOf(TimelineReader.Field.class), UserGroupInformation.getLoginUser());
    assertEquals(1, entities.getEntities().size());
    for (TimelineEntity entity : entities.getEntities()) {
        assertEquals(entityNew.getStartTime(), entity.getStartTime());
    }
    // Verify metrics
    assertEquals(numEntityReadBefore + 2L, detailLogEntityRead.value());
    assertEquals(cacheRefreshBefore + 1L, cacheRefresh.lastStat().numSamples());
}

Example 24 with URLClassLoader

use of java.net.URLClassLoader in project hive by apache.

the class MetaStoreUtils method addToClassPath.

/**
   * Add new elements to the classpath.
   *
   * @param newPaths
   *          Array of classpath elements
   */
public static ClassLoader addToClassPath(ClassLoader cloader, String[] newPaths) throws Exception {
    URLClassLoader loader = (URLClassLoader) cloader;
    List<URL> curPath = Arrays.asList(loader.getURLs());
    ArrayList<URL> newPath = new ArrayList<URL>();
    // get a list with the current classpath components
    for (URL onePath : curPath) {
        newPath.add(onePath);
    }
    curPath = newPath;
    for (String onestr : newPaths) {
        URL oneurl = urlFromPathString(onestr);
        if (oneurl != null && !curPath.contains(oneurl)) {
            curPath.add(oneurl);
        }
    }
    return new URLClassLoader(curPath.toArray(new URL[0]), loader);
}

Example 25 with URLClassLoader

use of java.net.URLClassLoader in project zeppelin by apache.

the class FlinkInterpreter method classPath.

private List<File> classPath(ClassLoader cl) {
    List<File> paths = new LinkedList<>();
    if (cl == null) {
        return paths;
    }
    if (cl instanceof URLClassLoader) {
        URLClassLoader ucl = (URLClassLoader) cl;
        URL[] urls = ucl.getURLs();
        if (urls != null) {
            for (URL url : urls) {
                paths.add(new File(url.getFile()));
            }
        }
    }
    return paths;
}