| /** |
| * 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.camel.catalog.maven; |
| |
| import java.io.InputStream; |
| import java.util.Properties; |
| |
| import static org.apache.camel.catalog.CatalogHelper.loadText; |
| |
| /** |
| * Helper methods for loading content from Camel components that the {@link org.apache.camel.catalog.CamelCatalog} requires. |
| */ |
| public final class ComponentArtifactHelper { |
| |
| private ComponentArtifactHelper() { |
| } |
| |
| public static Properties loadComponentProperties(boolean log, ClassLoader classLoader) { |
| Properties answer = new Properties(); |
| try { |
| // load the component files using the recommended way by a component.properties file |
| InputStream is = classLoader.getResourceAsStream("META-INF/services/org/apache/camel/component.properties"); |
| if (is != null) { |
| answer.load(is); |
| } |
| } catch (Throwable e) { |
| if (log) { |
| System.out.println("WARN: Error loading META-INF/services/org/apache/camel/component.properties file due " + e.getMessage()); |
| } |
| } |
| return answer; |
| } |
| |
| public static String extractComponentJavaType(boolean log, ClassLoader classLoader, String scheme) { |
| try { |
| InputStream is = classLoader.getResourceAsStream("META-INF/services/org/apache/camel/component/" + scheme); |
| if (is != null) { |
| Properties props = new Properties(); |
| props.load(is); |
| return (String) props.get("class"); |
| } |
| } catch (Throwable e) { |
| if (log) { |
| System.out.println("WARN: Error loading META-INF/services/org/apache/camel/component/" + scheme + " file due " + e.getMessage()); |
| } |
| } |
| |
| return null; |
| } |
| |
| public static String loadComponentJSonSchema(boolean log, ClassLoader classLoader, String scheme) { |
| String answer = null; |
| |
| String path = null; |
| String javaType = extractComponentJavaType(log, classLoader, scheme); |
| if (javaType != null) { |
| int pos = javaType.lastIndexOf("."); |
| path = javaType.substring(0, pos); |
| path = path.replace('.', '/'); |
| path = path + "/" + scheme + ".json"; |
| } |
| |
| if (path != null) { |
| try { |
| InputStream is = classLoader.getResourceAsStream(path); |
| if (is != null) { |
| answer = loadText(is); |
| } |
| } catch (Throwable e) { |
| if (log) { |
| System.out.println("WARN: Error loading " + path + " file due " + e.getMessage()); |
| } |
| } |
| } |
| |
| return answer; |
| } |
| } |