| /* |
| * 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.felix.ipojo.manipulator.metadata.annotation.visitor.util; |
| |
| import static java.lang.String.format; |
| |
| import org.apache.felix.ipojo.manipulator.metadata.annotation.ComponentWorkbench; |
| import org.apache.felix.ipojo.metadata.Element; |
| import org.objectweb.asm.Type; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class Elements { |
| |
| /** |
| * Build the {@link Element} object from the given descriptor. |
| * It splits the annotation's classname in 2 parts (up to the last '.') |
| * first part (package's name) becomes the Element's namespace, and second |
| * part (class simple name) becomes the Element's name. |
| * @param type annotation descriptor |
| * @return the new element |
| */ |
| public static Element buildElement(Type type) { |
| String name = type.getClassName(); |
| int index = name.lastIndexOf('.'); |
| String local = name.substring(index + 1); |
| String namespace = name.substring(0, index); |
| return buildElement(namespace, local); |
| } |
| |
| /** |
| * Build an {@link Element} using the provided namespace and local name. |
| */ |
| public static Element buildElement(final String namespace, final String name) { |
| return new Element(name, namespace); |
| } |
| |
| /** |
| * Build an {@link Element} using the provided binding information. |
| * Expected format is {@literal [namespace:]name} (eg: {@literal com.acme:foo} or {@literal foo} if namespace |
| * by default -org.apache.felix.ipojo- has to be used). |
| * Notice that the ':' character usage in namespace or name part may lead to unexpected results. |
| * In that case, the @HandlerBinding(namespace = "urn:my:namespace", value = "foo:handler") usage is preferred. |
| * @param binding the condensed element name |
| * @return the new element |
| */ |
| public static Element buildElement(String binding) { |
| String[] split = binding.split(":"); |
| if (split.length == 1) { |
| return buildElement("", binding); |
| } |
| if (split.length > 2) { |
| throw new IllegalArgumentException( |
| format("@HandlerBinding(\"%s\") is invalid: only 1 ':' char is authorized, please" + |
| " use the @HandlerBinding(namespace=\"...\", value=\"...\") form instead.", |
| binding) |
| ); |
| } |
| return buildElement(split[0], split[1]); |
| } |
| |
| /** |
| * Return the Element named {@literal properties}, creates one if missing. |
| * @param workbench source for search |
| * @return the {@literal properties} Element (never null). |
| */ |
| public static Element getPropertiesElement(ComponentWorkbench workbench) { |
| Element properties = workbench.getIds().get("properties"); |
| if (properties == null) { |
| properties = buildElement("", "properties"); |
| workbench.getIds().put("properties", properties); |
| workbench.getElements().put(properties, null); |
| } |
| return properties; |
| } |
| } |