import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
private void registerLogContext(final DeploymentUnit deploymentUnit, final AttachmentKey<LogContext> attachmentKey, final Module module, final LogContext logContext) {
    LoggingLogger.ROOT_LOGGER.tracef("Registering LogContext %s for deployment %s", logContext, deploymentUnit.getName());
    if (WildFlySecurityManager.isChecking()) {
        WildFlySecurityManager.doUnchecked(new PrivilegedAction<Object>() {
            @Override
            public Object run() {
                logContextSelector.registerLogContext(module.getClassLoader(), logContext);
                return null;
            }
        });
    } else {
        logContextSelector.registerLogContext(module.getClassLoader(), logContext);
    }
    // Add the log context to the sub-deployment unit for later removal
    deploymentUnit.putAttachment(attachmentKey, logContext);
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
private void unregisterLogContext(final DeploymentUnit deploymentUnit, final AttachmentKey<LogContext> attachmentKey, final Module module) {
    final LogContext logContext = deploymentUnit.removeAttachment(attachmentKey);
    if (logContext != null) {
        final boolean success;
        if (WildFlySecurityManager.isChecking()) {
            success = WildFlySecurityManager.doUnchecked(new PrivilegedAction<Boolean>() {
                @Override
                public Boolean run() {
                    return logContextSelector.unregisterLogContext(module.getClassLoader(), logContext);
                }
            });
        } else {
            success = logContextSelector.unregisterLogContext(module.getClassLoader(), logContext);
        }
        if (success) {
            LoggingLogger.ROOT_LOGGER.tracef("Removed LogContext '%s' from '%s'", logContext, module);
        } else {
            LoggingLogger.ROOT_LOGGER.logContextNotRemoved(logContext, deploymentUnit.getName());
        }
    }
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
@Override
public void deploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
    final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
    final ResourceRoot root = deploymentUnit.getAttachment(Attachments.DEPLOYMENT_ROOT);

    VirtualFile descriptor = null;
    for (final String loc : DEPLOYMENT_STRUCTURE_DESCRIPTOR_LOCATIONS) {
        final VirtualFile file = root.getRoot().getChild(loc);
        if (file.exists()) {
            descriptor = file;
            break;
        }
    }
    if(descriptor == null) {
        return;
    }
    final XMLMapper mapper = XMLMapper.Factory.create();
    final Map<QName, AttachmentKey<?>> namespaceAttachments = new HashMap<QName, AttachmentKey<?>>();
    for(final JBossAllXMLParserDescription<?> parser : deploymentUnit.getAttachmentList(JBossAllXMLParserDescription.ATTACHMENT_KEY)) {
        namespaceAttachments.put(parser.getRootElement(), parser.getAttachmentKey());
        mapper.registerRootElement(parser.getRootElement(), new JBossAllXMLElementReader(parser));
    }
    mapper.registerRootElement(new QName(Namespace.JBOSS_1_0.getUriString(), JBOSS), Parser.INSTANCE);
    mapper.registerRootElement(new QName(Namespace.NONE.getUriString(), JBOSS), Parser.INSTANCE);

    final JBossAllXmlParseContext context = new JBossAllXmlParseContext(deploymentUnit);
    parse(descriptor, mapper, context);

    //we use this map to detect the presence of two different but functionally equivalent namespaces
    final Map<AttachmentKey<?>, QName> usedNamespaces = new HashMap<AttachmentKey<?>, QName>();
    for(Map.Entry<QName, Object> entry : context.getParseResults().entrySet()) {
        final AttachmentKey attachmentKey = namespaceAttachments.get(entry.getKey());
        if(usedNamespaces.containsKey(attachmentKey)) {
            throw ServerLogger.ROOT_LOGGER.equivalentNamespacesInJBossXml(entry.getKey(), usedNamespaces.get(attachmentKey));
        }
        usedNamespaces.put(attachmentKey, entry.getKey());
        deploymentUnit.putAttachment(attachmentKey, entry.getValue());
    }
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
public JBossAllXmlParserRegisteringProcessor(final QName rootElement, final AttachmentKey<T> attachmentKey, final JBossAllXMLParser<T> parser) {
    descriptions = Collections.singletonList(new JBossAllXMLParserDescription<T>(attachmentKey, parser, rootElement));
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
public <T> Builder addParser(final QName rootElement, final AttachmentKey<T> attachmentKey, final JBossAllXMLParser<T> parser) {
    descriptions.add(new JBossAllXMLParserDescription<T>(attachmentKey, parser, rootElement));
    return this;
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
public JBossAllXMLParserDescription(final AttachmentKey<T> attachmentKey, final JBossAllXMLParser<T> parser, final QName rootElement) {
    this.attachmentKey = attachmentKey;
    this.parser = parser;
    this.rootElement = rootElement;
}
 

import org.jboss.as.server.deployment.AttachmentKey; //导入依赖的package包/类
public AttachmentKey<T> getAttachmentKey() {
    return attachmentKey;
}