| /* |
| * 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. |
| */ |
| package org.apache.batchee.cli.command; |
| |
| import org.apache.batchee.cli.command.api.Command; |
| |
| import java.io.File; |
| import java.io.FilenameFilter; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Enumeration; |
| import java.util.Set; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| @Command(name = "names", description = "list known batches") |
| public class Names extends JobOperatorCommand { |
| |
| private static final Pattern JOB_XML_PATTERN = Pattern.compile("META-INF/batch-jobs/(.*)\\.xml"); |
| |
| @Override |
| public void doRun() { |
| final Set<String> names = operator().getJobNames(); |
| info(""); |
| info("names"); |
| info("-----"); |
| if (names != null) { |
| for (final String name : names) { |
| info(name); |
| } |
| } |
| |
| // try to find not yet started jobs |
| final ClassLoader loader = Thread.currentThread().getContextClassLoader(); |
| final Enumeration<URL> resources; |
| try { |
| resources = loader.getResources("META-INF/batch-jobs"); |
| } catch (final IOException e) { |
| return; |
| } |
| while (resources.hasMoreElements()) { |
| final URL url = resources.nextElement(); |
| final File file = toFile(url); |
| |
| if (file != null) { |
| if (file.isDirectory()) { |
| findInDirectory(file); |
| } else { |
| findInJar(file); |
| } |
| } |
| } |
| info("-----"); |
| } |
| |
| private void findInJar(final File file) { |
| final JarFile jar; |
| try { |
| jar = new JarFile(file); |
| } catch (final IOException e) { |
| info(String.format("could not load jobs in file %s", file.getAbsolutePath())); |
| return; |
| } |
| final Enumeration<JarEntry> entries = jar.entries(); |
| while (entries.hasMoreElements()) { |
| final JarEntry entry = entries.nextElement(); |
| |
| if (entry.isDirectory()) { |
| continue; |
| } |
| |
| final Matcher matcher = JOB_XML_PATTERN.matcher(entry.getName()); |
| if (matcher.matches()) { |
| info(matcher.group(1)); |
| } |
| } |
| } |
| |
| private void findInDirectory(final File file) { |
| final String[] batches = file.list(new FilenameFilter() { |
| @Override |
| public boolean accept(final File dir, final String name) { |
| return name.endsWith(".xml"); |
| } |
| }); |
| if (batches != null) { |
| for (final String batch : batches) { |
| info(batch); |
| } |
| } |
| } |
| |
| private static File toFile(final URL url) { |
| final File file; |
| final String externalForm = url.toExternalForm(); |
| if ("jar".equals(url.getProtocol())) { |
| file = new File(externalForm.substring("jar:file:".length(), externalForm.lastIndexOf('!'))); |
| } else if ("file".equals(url.getProtocol())) { |
| file = new File(externalForm.substring("file:".length())); |
| } else { |
| file = null; |
| } |
| return file; |
| } |
| } |