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Initial work on reading enabled deployment types from XML.
git-svn-id: http://anonsvn.jboss.org/repos/weld/ri/trunk@1525 1c488680-804c-0410-94cd-c6b725194a0e
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webbeans-ri/src/main/java/org/jboss/webbeans/bootstrap/BeansXmlParser.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,205 @@ | ||
| package org.jboss.webbeans.bootstrap; | ||
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| import java.io.IOException; | ||
| import java.lang.annotation.Annotation; | ||
| import java.net.URL; | ||
| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| import javax.inject.DeploymentException; | ||
| import javax.xml.parsers.DocumentBuilder; | ||
| import javax.xml.parsers.DocumentBuilderFactory; | ||
| import javax.xml.parsers.ParserConfigurationException; | ||
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| import org.jboss.webbeans.resources.spi.ResourceLoader; | ||
| import org.jboss.webbeans.util.dom.NodeListIterable; | ||
| import org.w3c.dom.Attr; | ||
| import org.w3c.dom.Document; | ||
| import org.w3c.dom.Element; | ||
| import org.w3c.dom.Node; | ||
| import org.xml.sax.SAXException; | ||
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| /** | ||
| * Temporary XML parser to get essential data (like enabled deployment types) | ||
| * until we have a full XML parser/binder | ||
| * | ||
| * @author Pete Muir | ||
| * | ||
| */ | ||
| public class BeansXmlParser | ||
| { | ||
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| private static class DeployElement | ||
| { | ||
| private URL file; | ||
| private Element element; | ||
| private Map<String, String> namespaces; | ||
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| public DeployElement(URL file, Element element, Map<String, String> namespaces) | ||
| { | ||
| super(); | ||
| this.file = file; | ||
| this.element = element; | ||
| this.namespaces = namespaces; | ||
| } | ||
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| public URL getFile() | ||
| { | ||
| return file; | ||
| } | ||
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| public Element getElement() | ||
| { | ||
| return element; | ||
| } | ||
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| public Map<String, String> getNamespaces() | ||
| { | ||
| return namespaces; | ||
| } | ||
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| @Override | ||
| public String toString() | ||
| { | ||
| return "File: " + getFile() + "; Node: " + getElement(); | ||
| } | ||
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| } | ||
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| public static final String EE_NAMESPACE = "urn:java:ee"; | ||
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| private final Iterable<URL> beansXml; | ||
| private final ResourceLoader resourceLoader; | ||
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| private List<Class<? extends Annotation>> enabledDeploymentTypes; | ||
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| public List<Class<? extends Annotation>> getEnabledDeploymentTypes() | ||
| { | ||
| return enabledDeploymentTypes; | ||
| } | ||
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| public BeansXmlParser(ResourceLoader resourceLoader, Iterable<URL> beansXml) | ||
| { | ||
| this.beansXml = beansXml; | ||
| this.resourceLoader = resourceLoader; | ||
| } | ||
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| public void parse() | ||
| { | ||
| DocumentBuilder documentBuilder; | ||
| try | ||
| { | ||
| documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); | ||
| } | ||
| catch (ParserConfigurationException e) | ||
| { | ||
| throw new DeploymentException("Error configuring XML parser", e); | ||
| } | ||
| List<DeployElement> deployElements = new ArrayList<DeployElement>(); | ||
| for (URL url : beansXml) | ||
| { | ||
| Document document; | ||
| try | ||
| { | ||
| document = documentBuilder.parse(url.openStream()); | ||
| document.normalize(); | ||
| } | ||
| catch (SAXException e) | ||
| { | ||
| throw new DeploymentException("Error parsing beans.xml " + url.toString()); | ||
| } | ||
| catch (IOException e) | ||
| { | ||
| throw new DeploymentException("Error loading beans.xml " + url.toString()); | ||
| } | ||
| Element beans = document.getDocumentElement(); | ||
| Map<String, String> namespaces = new HashMap<String, String>(); | ||
| for (int i = 0; i < beans.getAttributes().getLength(); i++) | ||
| { | ||
| Node child = beans.getAttributes().item(i); | ||
| if (child instanceof Attr) | ||
| { | ||
| Attr attr = (Attr) child; | ||
| if (attr.getName().startsWith("xmlns")) | ||
| { | ||
| String namespacePrefix; | ||
| if (attr.getName().length() == 5) | ||
| { | ||
| namespacePrefix = ""; | ||
| } | ||
| else | ||
| { | ||
| namespacePrefix = attr.getName().substring(6); | ||
| } | ||
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| String namespace = attr.getValue(); | ||
| namespaces.put(namespacePrefix, namespace); | ||
| } | ||
| } | ||
| } | ||
| for (Node child : new NodeListIterable(beans.getChildNodes())) | ||
| { | ||
| if (child instanceof Element && "Deploy".equals(child.getNodeName())) | ||
| { | ||
| deployElements.add(new DeployElement(url, (Element) child, namespaces)); | ||
| } | ||
| } | ||
| } | ||
| if (deployElements.size() > 1) | ||
| { | ||
| throw new DeploymentException("<Deploy> can only be specified once, but it is specified muliple times " + deployElements); | ||
| } | ||
| else if (deployElements.size() == 1) | ||
| { | ||
| DeployElement deployElement = deployElements.get(0); | ||
| enabledDeploymentTypes = new ArrayList<Class<? extends Annotation>>(); | ||
| for (Node child : new NodeListIterable(deployElement.getElement().getChildNodes())) | ||
| { | ||
| if (child instanceof Element) | ||
| { | ||
| String className = getAsClassName(child.getNodeName(), deployElement.getNamespaces()); | ||
| if (className != null) | ||
| { | ||
| enabledDeploymentTypes.add(resourceLoader.classForName(className).asSubclass(Annotation.class)); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private static String getAsClassName(String nodeName, Map<String, String> namespaces) | ||
| { | ||
| String namespacePrefix; | ||
| String simpleClassName; | ||
| if (nodeName.contains(":")) | ||
| { | ||
| namespacePrefix = nodeName.substring(0, nodeName.indexOf(":")); | ||
| simpleClassName = nodeName.substring(nodeName.indexOf(":") + 1); | ||
| } | ||
| else | ||
| { | ||
| namespacePrefix = ""; | ||
| simpleClassName = nodeName; | ||
| } | ||
| String namespace = namespaces.get(namespacePrefix); | ||
| String packageName; | ||
| if (namespace.startsWith("urn:java:ee")) | ||
| { | ||
| // Hack for now to return the correct package for this composite package deployment types | ||
| packageName = "javax.inject"; | ||
| } | ||
| else if (namespace.startsWith("urn:java:")) | ||
| { | ||
| packageName = namespace.substring(9); | ||
| } | ||
| else | ||
| { | ||
| // Not a Java package | ||
| return null; | ||
| } | ||
| return packageName + "." + simpleClassName; | ||
| } | ||
|
|
||
| } |
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3 changes: 3 additions & 0 deletions
3
webbeans-ri/src/main/java/org/jboss/webbeans/util/EnumerationVector.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,3 @@ | ||
| package org.jboss.webbeans.util; | ||
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23 changes: 23 additions & 0 deletions
23
webbeans-ri/src/main/java/org/jboss/webbeans/util/dom/NodeListIterable.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| package org.jboss.webbeans.util.dom; | ||
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| import java.util.Iterator; | ||
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| import org.w3c.dom.Node; | ||
| import org.w3c.dom.NodeList; | ||
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| public class NodeListIterable implements Iterable<Node> | ||
| { | ||
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| private final NodeList nodeList; | ||
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| public NodeListIterable(NodeList nodeList) | ||
| { | ||
| this.nodeList = nodeList; | ||
| } | ||
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| public Iterator<Node> iterator() | ||
| { | ||
| return new NodeListIterator(nodeList); | ||
| } | ||
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| } |
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