orpiske commented on a change in pull request #5770: URL: https://github.com/apache/camel/pull/5770#discussion_r662082846
########## File path: dsl/camel-jbang/CamelJbang.java ########## @@ -0,0 +1,252 @@ +///usr/bin/env jbang "$0" "$@" ; exit $? +/* + * 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. + */ + +//REPOS mavencentral,apache=https://repository.apache.org/snapshots +//DEPS org.apache.camel:camel-bom:3.12.0-SNAPSHOT@pom +//DEPS org.apache.camel:camel-core +//DEPS org.apache.camel:camel-core-model +//DEPS org.apache.camel:camel-api +//DEPS org.apache.camel:camel-main +//DEPS org.apache.camel:camel-kamelet-main +//DEPS org.apache.camel:camel-file-watch +//DEPS org.apache.camel:camel-resourceresolver-github +//DEPS org.apache.logging.log4j:log4j-api:2.13.3 +//DEPS org.apache.logging.log4j:log4j-core:2.13.3 +//DEPS org.apache.logging.log4j:log4j-slf4j-impl:2.13.3 +//DEPS info.picocli:picocli:4.5.0 + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileReader; +import java.io.FileWriter; +import java.io.IOException; +import java.io.Reader; +import java.util.concurrent.Callable; +import java.util.function.Consumer; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import org.apache.camel.CamelContext; +import org.apache.camel.builder.RouteBuilder; +import org.apache.camel.github.GitHubResourceResolver; +import org.apache.camel.main.KameletMain; +import org.apache.camel.spi.Resource; +import org.apache.logging.log4j.Level; +import org.apache.logging.log4j.core.config.Configurator; +import org.apache.logging.log4j.core.config.DefaultConfiguration; + +import picocli.CommandLine; +import picocli.CommandLine.Command; +import picocli.CommandLine.Option; +import picocli.CommandLine.Parameters; + +@Command(name = "run", description = "Run a Kamelet") +class Run implements Callable<Integer> { + private CamelContext context; + + @Parameters(description = "The path to the kamelet binding", defaultValue = "") + private String binding; + + @Option(names = {"--debug-level"}, defaultValue = "info", description = "Default debug level") + private String debugLevel; + + class ShutdownRoute extends RouteBuilder { + private File lockFile; + + public ShutdownRoute(File lockFile) { + this.lockFile = lockFile; + } + + public void configure() { + fromF("file-watch://%s?events=DELETE&antInclude=%s", lockFile.getParent(), lockFile.getName()) + .process(p -> context.shutdown()); + } + } + + @Override + public Integer call() throws Exception { + switch (debugLevel) { + case "trace": Configurator.setRootLevel(Level.TRACE); break; + case "debug": Configurator.setRootLevel(Level.DEBUG); break; + case "info": Configurator.setRootLevel(Level.INFO); break; + case "warn": Configurator.setRootLevel(Level.WARN); break; + case "fatal": Configurator.setRootLevel(Level.FATAL); break; + default: { + System.err.println("Invalid debug level " + debugLevel); + return 1; + } + } + + System.out.println("Starting Camel Jbang!"); + + if (binding.isEmpty()) { + System.err.println("You must provide a binding file (check --help)"); + + return 1; + } + + File bindingFile = new File(binding); + if (!bindingFile.exists()) { + System.err.println("The binding file does not exist"); + + return 1; + } + + System.setProperty("camel.main.routes-include-pattern", "file:" + binding); + System.setProperty("camel.main.name", "CamelJbang"); + + KameletMain main = new KameletMain(); + + main.configure().addRoutesBuilder(new ShutdownRoute(createLockFile())); + main.start(); + context = main.getCamelContext(); + + main.run(); + return 0; + } + + public File createLockFile() throws IOException { + File lockFile = File.createTempFile(".run", ".vicuna.lock", new File(".")); + + System.out.printf("A new lock file was created on %s. Delete this file to stop running%n", + lockFile.getAbsolutePath()); + lockFile.deleteOnExit(); + + return lockFile; + } +} + +@Command(name = "search", description = "Search for a Kamelet in the Kamelet catalog") +class Search implements Callable<Integer> { + + @Option(names = {"--search-term"}, defaultValue = "", description = "Default debug level") + private String searchTerm; + + private void downloadResource(File indexFile) throws Exception { + KameletMain main = new KameletMain(); + main.start(); + CamelContext context = main.getCamelContext(); + + try (GitHubResourceResolver resolver = new GitHubResourceResolver()) { + resolver.setCamelContext(context); + + Resource resource = resolver.resolve("github:apache:camel-kamelets:docs/modules/ROOT/nav.adoc"); + + if (!resource.exists()) { + throw new Exception("The resource does not exist"); + } + + try (FileWriter w = new FileWriter(indexFile)) { + Reader resourceReader = resource.getReader(); + + resourceReader.transferTo(w); + } + } + } + + /* + * Matches the following line. Separate them into groups and pick the last + * which contains the description: + * + * xref:ROOT:mariadb-sink.adoc[image:kamelets/mariadb-sink.svg[] MariaDB Sink] + */ + private void checkForMatches(String line) { + Pattern pat = Pattern.compile("(.*):(.*):(.*)\\[(.*)\\[\\] (.*)\\]"); + + Matcher matcher = pat.matcher(line); + + if (matcher.find()) { + String description = matcher.group(5); + String kamelet = matcher.group(3).replace(".adoc", ""); + + if (description.toLowerCase().contains(searchTerm.toLowerCase())) { + System.out.printf("%-35s %-45s%n", kamelet, description); + } + } + } + + private void printAll(String line) { + Pattern pat = Pattern.compile("(.*):(.*):(.*)\\[(.*)\\[\\] (.*)\\]"); + + Matcher matcher = pat.matcher(line); + + if (matcher.find()) { + String kamelet = matcher.group(3).replace(".adoc", ""); + String description = matcher.group(5); + + System.out.printf("%-35s %-45s%n", kamelet, description); + } + } + + private void readFileByLine(File indexFile, Consumer<String> consumer) throws IOException, FileNotFoundException { + FileReader indexFileReader = new FileReader(indexFile); + try (BufferedReader br = new BufferedReader(indexFileReader)) { + + String line; + do { + line = br.readLine(); + + if (line == null) { + break; + } + + consumer.accept(line); + + } while (line != null); + } + } + + @Override + public Integer call() throws Exception { + File indexFile = new File("index"); + indexFile.deleteOnExit(); + + downloadResource(indexFile); + + System.out.printf("%-35s %-45s%n", "KAMELET", "DESCRIPTION"); + System.out.printf("%-35s %-45s%n", "-------", "-----------"); + if (!searchTerm.isEmpty()) { + readFileByLine(indexFile, this::checkForMatches); + } else { + readFileByLine(indexFile, this::printAll); + } + + return 0; + } +} + +@Command(name = "CamelJbang", mixinStandardHelpOptions = true, version = "CamelJbang 3.12.0-SNAPSHOT", Review comment: Thanks. I think I corrected it now :) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@camel.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
