Examples with Metadata org.osgi.service.blueprint.reflect.Metadata used on opensource projects

Example 26 with Metadata

use of org.osgi.service.blueprint.reflect.Metadata in project aries by apache.

the class Parser method parseRegistrationListener.

public RegistrationListener parseRegistrationListener(Element element, ComponentMetadata enclosingComponent) {
    RegistrationListenerImpl listener = new RegistrationListenerImpl();
    Metadata listenerComponent = null;
    // Parse attributes
    if (element.hasAttribute(REF_ATTRIBUTE)) {
        listenerComponent = new RefMetadataImpl(element.getAttribute(REF_ATTRIBUTE));
    }
    String registrationMethod = null;
    if (element.hasAttribute(REGISTRATION_METHOD_ATTRIBUTE)) {
        registrationMethod = element.getAttribute(REGISTRATION_METHOD_ATTRIBUTE);
        listener.setRegistrationMethod(registrationMethod);
    }
    String unregistrationMethod = null;
    if (element.hasAttribute(UNREGISTRATION_METHOD_ATTRIBUTE)) {
        unregistrationMethod = element.getAttribute(UNREGISTRATION_METHOD_ATTRIBUTE);
        listener.setUnregistrationMethod(unregistrationMethod);
    }
    if (registrationMethod == null && unregistrationMethod == null) {
        throw new ComponentDefinitionException("One of " + REGISTRATION_METHOD_ATTRIBUTE + " or " + UNREGISTRATION_METHOD_ATTRIBUTE + " must be set");
    }
    // Parse elements
    NodeList nl = element.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node node = nl.item(i);
        if (node instanceof Element) {
            Element e = (Element) node;
            if (isBlueprintNamespace(e.getNamespaceURI())) {
                if (nodeNameEquals(e, REF_ELEMENT)) {
                    if (listenerComponent != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element can be set");
                    }
                    String component = e.getAttribute(COMPONENT_ID_ATTRIBUTE);
                    if (component == null || component.length() == 0) {
                        throw new ComponentDefinitionException("Element " + REF_ELEMENT + " must have a valid " + COMPONENT_ID_ATTRIBUTE + " attribute");
                    }
                    listenerComponent = new RefMetadataImpl(component);
                } else if (nodeNameEquals(e, BEAN_ELEMENT)) {
                    if (listenerComponent != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element can be set");
                    }
                    listenerComponent = parseBeanMetadata(e, false);
                } else if (nodeNameEquals(e, REFERENCE_ELEMENT)) {
                    if (listenerComponent != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element can be set");
                    }
                    listenerComponent = parseReference(e, false);
                } else if (nodeNameEquals(e, SERVICE_ELEMENT)) {
                    if (listenerComponent != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element can be set");
                    }
                    listenerComponent = parseService(e, false);
                }
            } else {
                if (listenerComponent != null) {
                    throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element can be set");
                }
                listenerComponent = parseCustomElement(e, enclosingComponent);
            }
        }
    }
    if (listenerComponent == null) {
        throw new ComponentDefinitionException("One of " + REF_ATTRIBUTE + " attribute, " + REF_ELEMENT + ", " + BEAN_ELEMENT + ", " + REFERENCE_ELEMENT + ", " + SERVICE_ELEMENT + " or custom element must be set");
    }
    listener.setListenerComponent((Target) listenerComponent);
    return listener;
}

Example 27 with Metadata

use of org.osgi.service.blueprint.reflect.Metadata in project aries by apache.

the class Parser method parseBeanArgument.

private BeanArgument parseBeanArgument(ComponentMetadata enclosingComponent, Element element) {
    int index = element.hasAttribute(INDEX_ATTRIBUTE) ? Integer.parseInt(element.getAttribute(INDEX_ATTRIBUTE)) : -1;
    String type = element.hasAttribute(TYPE_ATTRIBUTE) ? element.getAttribute(TYPE_ATTRIBUTE) : null;
    Metadata value = parseArgumentOrPropertyValue(element, enclosingComponent);
    return new BeanArgumentImpl(value, type, index);
}

Example 28 with Metadata

use of org.osgi.service.blueprint.reflect.Metadata in project aries by apache.

the class Parser method parseBeanProperty.

public BeanProperty parseBeanProperty(ComponentMetadata enclosingComponent, Element element) {
    String name = element.hasAttribute(NAME_ATTRIBUTE) ? element.getAttribute(NAME_ATTRIBUTE) : null;
    Metadata value = parseArgumentOrPropertyValue(element, enclosingComponent);
    return new BeanPropertyImpl(name, value);
}

Example 29 with Metadata

use of org.osgi.service.blueprint.reflect.Metadata in project aries by apache.

the class SpringOsgiNamespaceHandler method parseService.

private Metadata parseService(Element element, ParserContext context) {
    MutableServiceMetadata metadata = context.createMetadata(MutableServiceMetadata.class);
    // Parse attributes
    if (element.hasAttribute(ID_ATTRIBUTE)) {
        metadata.setId(element.getAttribute(ID_ATTRIBUTE));
    } else {
        metadata.setId(generateId(context));
    }
    if (nonEmpty(element.getAttribute(REF_ATTRIBUTE)) != null) {
        MutableRefMetadata ref = context.createMetadata(MutableRefMetadata.class);
        ref.setComponentId(element.getAttribute(REF_ATTRIBUTE));
        metadata.setServiceComponent(ref);
    }
    metadata.setRanking(nonEmpty(element.getAttribute(RANKING_ATTRIBUTE)) != null ? Integer.parseInt(element.getAttribute(RANKING_ATTRIBUTE)) : 0);
    String itf = nonEmpty(element.getAttribute(INTERFACE_ATTRIBUTE));
    if (itf != null) {
        metadata.addInterface(itf);
    }
    String[] dependsOn = StringUtils.tokenizeToStringArray(nonEmpty(element.getAttribute(DEPENDS_ON_ATTRIBUTE)), ",; ");
    metadata.setDependsOn(dependsOn != null ? Arrays.asList(dependsOn) : null);
    String autoExp = nonEmpty(element.getAttribute(AUTO_EXPORT_ATTRIBUTE));
    if (AUTO_EXPORT_INTERFACES.equals(autoExp)) {
        metadata.setAutoExport(ServiceMetadata.AUTO_EXPORT_INTERFACES);
    } else if (AUTO_EXPORT_CLASS_HIERARCHY.equals(autoExp)) {
        metadata.setAutoExport(ServiceMetadata.AUTO_EXPORT_CLASS_HIERARCHY);
    } else if (AUTO_EXPORT_ALL_CLASSES.equals(autoExp)) {
        metadata.setAutoExport(ServiceMetadata.AUTO_EXPORT_ALL_CLASSES);
    } else {
        metadata.setAutoExport(ServiceMetadata.AUTO_EXPORT_DISABLED);
    }
    // Parse child elements
    for (Element child : getChildren(element)) {
        if (element.getNamespaceURI().equals(child.getNamespaceURI())) {
            if (INTERFACES_ELEMENT.equals(child.getLocalName())) {
                List<String> itfs = parseInterfaces(child);
                for (String intf : itfs) {
                    metadata.addInterface(intf);
                }
            } else if (REGISTRATION_LISTENER_ELEMENT.equals(child.getLocalName())) {
                String regMethod = nonEmpty(child.getAttribute(REGISTRATION_METHOD_ATTRIBUTE));
                String unregMethod = nonEmpty(child.getAttribute(UNREGISTRATION_METHOD_ATTRIBUTE));
                String refStr = nonEmpty(child.getAttribute(REF_ATTRIBUTE));
                Target listenerComponent = null;
                if (refStr != null) {
                    MutableRefMetadata ref = context.createMetadata(MutableRefMetadata.class);
                    ref.setComponentId(refStr);
                    listenerComponent = ref;
                }
                for (Element cchild : getChildren(child)) {
                    if (listenerComponent != null) {
                        throw new IllegalArgumentException("Only one of @ref attribute or inlined bean definition element is allowed");
                    }
                    listenerComponent = parseInlinedTarget(context, metadata, cchild);
                }
                if (listenerComponent == null) {
                    throw new IllegalArgumentException("Missing @ref attribute or inlined bean definition element");
                }
                metadata.addRegistrationListener(listenerComponent, regMethod, unregMethod);
            } else if (SERVICE_PROPERTIES_ELEMENT.equals(child.getLocalName())) {
                // TODO: @key-type
                for (Element e : getChildren(child)) {
                    if (ENTRY_ELEMENT.equals(e.getLocalName())) {
                        NonNullMetadata key;
                        Metadata val;
                        boolean hasKeyAttribute = e.hasAttribute(KEY_ATTRIBUTE);
                        boolean hasKeyRefAttribute = e.hasAttribute(KEY_REF_ATTRIBUTE);
                        if (hasKeyRefAttribute && !hasKeyAttribute) {
                            MutableRefMetadata r = context.createMetadata(MutableRefMetadata.class);
                            r.setComponentId(e.getAttribute(KEY_REF_ATTRIBUTE));
                            key = r;
                        } else if (hasKeyAttribute && !hasKeyRefAttribute) {
                            MutableValueMetadata v = context.createMetadata(MutableValueMetadata.class);
                            v.setStringValue(e.getAttribute(KEY_ATTRIBUTE));
                            key = v;
                        } else {
                            throw new IllegalStateException("Either key or key-ref must be specified");
                        }
                        // TODO: support key
                        boolean hasValAttribute = e.hasAttribute(VALUE_ATTRIBUTE);
                        boolean hasValRefAttribute = e.hasAttribute(VALUE_REF_ATTRIBUTE);
                        if (hasValRefAttribute && !hasValAttribute) {
                            MutableRefMetadata r = context.createMetadata(MutableRefMetadata.class);
                            r.setComponentId(e.getAttribute(VALUE_REF_ATTRIBUTE));
                            val = r;
                        } else if (hasValAttribute && !hasValRefAttribute) {
                            MutableValueMetadata v = context.createMetadata(MutableValueMetadata.class);
                            v.setStringValue(e.getAttribute(VALUE_ATTRIBUTE));
                            val = v;
                        } else {
                            throw new IllegalStateException("Either val or val-ref must be specified");
                        }
                        // TODO: support children elements ?
                        metadata.addServiceProperty(key, val);
                    }
                }
            }
        } else if (BLUEPRINT_NAMESPACE.equals(child.getNamespaceURI()) && BEAN_ELEMENT.equals(child.getLocalName())) {
            if (metadata.getServiceComponent() != null) {
                throw new IllegalArgumentException("Only one of @ref attribute and bean element is allowed");
            }
            Target bean = context.parseElement(BeanMetadata.class, metadata, child);
            metadata.setServiceComponent(bean);
        } else {
            if (metadata.getServiceComponent() != null) {
                throw new IllegalArgumentException("Only one of @ref attribute or inlined bean definition element is allowed");
            }
            NamespaceHandler handler = context.getNamespaceHandler(URI.create(child.getNamespaceURI()));
            if (handler == null) {
                throw new IllegalStateException("No NamespaceHandler found for " + child.getNamespaceURI());
            }
            Metadata md = handler.parse(child, context);
            if (!(md instanceof Target)) {
                throw new IllegalStateException("NamespaceHandler did not return a Target instance but " + md);
            }
            metadata.setServiceComponent((Target) md);
        }
    }
    return metadata;
}

Example 30 with Metadata

use of org.osgi.service.blueprint.reflect.Metadata in project aries by apache.

the class NSHandlerOne method parse.

//process elements
public Metadata parse(Element element, ParserContext context) {
    Metadata retval = null;
    if (element.getLocalName().equals(ELT_NAME)) {
        final String id = element.getAttributeNS(NSURI, ATTRIB_ONE);
        final String value = element.getAttributeNS(NSURI, ATTRIB_TWO);
        PassThroughMetadata ptm = new PassThroughMetadata() {

            public String getId() {
                return id;
            }

            //not used currently
            public List<String> getDependsOn() {
                return null;
            }

            //also not used currently
            public int getActivation() {
                return 0;
            }

            public Object getObject() {
                return value;
            }
        };
        retval = ptm;
    }
    return retval;
}