| /* |
| * 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.quarkus.core; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Optional; |
| |
| import org.apache.camel.impl.engine.DefaultFactoryFinderResolver; |
| import org.apache.camel.spi.ClassResolver; |
| import org.apache.camel.spi.FactoryFinder; |
| import org.apache.camel.spi.FactoryFinderResolver; |
| import org.apache.camel.support.ObjectHelper; |
| import org.jboss.logging.Logger; |
| |
| /** |
| * A build time assembled {@link FactoryFinderResolver}. |
| */ |
| public class FastFactoryFinderResolver extends DefaultFactoryFinderResolver { |
| private static final Logger LOG = Logger.getLogger(FastFactoryFinderResolver.class); |
| private final Map<String, Class<?>> classMap; |
| |
| FastFactoryFinderResolver(Map<String, Class<?>> classMap) { |
| this.classMap = classMap; |
| } |
| |
| @Override |
| public FactoryFinder resolveFactoryFinder(ClassResolver classResolver, String resourcePath) { |
| return new FastFactoryFinder(resourcePath); |
| } |
| |
| static String mapKey(String resourcePath, String prefix, String key) { |
| final int len = resourcePath.length() + (prefix == null ? 0 : prefix.length()) + key.length() + 1; |
| final StringBuilder sb = new StringBuilder(len); |
| if (resourcePath.startsWith("/")) { |
| sb.append(resourcePath, 1, resourcePath.length()); |
| } else { |
| sb.append(resourcePath); |
| } |
| if (!resourcePath.endsWith("/")) { |
| sb.append("/"); |
| } |
| if (prefix != null) { |
| sb.append(prefix); |
| } |
| sb.append(key); |
| return sb.toString(); |
| } |
| |
| public static class Builder { |
| private Map<String, Class<?>> classMap = new HashMap<>(); |
| |
| public Builder entry(String resourcePath, Class<?> cl) { |
| if (resourcePath.startsWith("/")) { |
| resourcePath = resourcePath.substring(1); |
| } |
| classMap.put(resourcePath, cl); |
| return this; |
| } |
| |
| public FastFactoryFinderResolver build() { |
| Map<String, Class<?>> cm = classMap; |
| classMap = null; // make sure the classMap does not leak through re-using the builder |
| |
| if (LOG.isDebugEnabled()) { |
| cm.entrySet().forEach( |
| e -> LOG.debugf("FactoryFinder entry " + e.getKey() + ": " + e.getValue().getName())); |
| } |
| |
| return new FastFactoryFinderResolver(cm); |
| } |
| } |
| |
| public class FastFactoryFinder implements FactoryFinder { |
| |
| private final String path; |
| |
| FastFactoryFinder(String resourcePath) { |
| this.path = resourcePath; |
| } |
| |
| @Override |
| public String getResourcePath() { |
| return path; |
| } |
| |
| @Override |
| public Optional<Object> newInstance(String key) { |
| return Optional.ofNullable(doNewInstance(key, null)); |
| } |
| |
| @Override |
| public <T> Optional<T> newInstance(String key, Class<T> type) { |
| Object obj = doNewInstance(key, null); |
| return Optional.ofNullable(type.cast(obj)); |
| } |
| |
| @Override |
| public Optional<Class<?>> findClass(String key) { |
| return findClass(key, null); |
| } |
| |
| @Override |
| public Optional<Class<?>> findClass(String key, String propertyPrefix) { |
| final String mapKey = mapKey(path, propertyPrefix, key); |
| final Class<?> cl = classMap.get(mapKey); |
| if (cl == null) { |
| LOG.warnf("Could not find a non-optional class for key %s", mapKey); |
| } |
| return Optional.ofNullable(cl); |
| } |
| |
| @Override |
| public Optional<Class<?>> findClass(String key, String propertyPrefix, Class<?> clazz) { |
| // Just ignore clazz which is only useful for OSGiFactoryFinder |
| return findClass(key, propertyPrefix); |
| } |
| |
| @Override |
| public Optional<Class<?>> findOptionalClass(String key, String propertyPrefix) { |
| final String mapKey = mapKey(path, propertyPrefix, key); |
| LOG.tracef("Found an optional class for key %s: %s", mapKey); |
| return Optional.ofNullable(classMap.get(mapKey)); |
| } |
| |
| private Object doNewInstance(String key, String propertyPrefix) { |
| Optional<Class<?>> clazz = findClass(key, propertyPrefix); |
| return clazz.map(ObjectHelper::newInstance).orElse(null); |
| } |
| |
| } |
| |
| } |