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

Example 6 with Target

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

the class AbstractPropertyPlaceholder method processServiceMetadata.

protected Metadata processServiceMetadata(ServiceMetadata component) {
    try {
        if (component instanceof MutableServiceMetadata) {
            processingStack.add("Service Component->");
            ((MutableServiceMetadata) component).setServiceComponent((Target) processMetadata(component.getServiceComponent()));
        } else {
            printWarning(component, "Service Component");
            processingStack.add("Service Component->");
            processMetadata(component.getServiceComponent());
        }
    } finally {
        processingStack.removeLast();
    }
    List<MapEntry> entries = new ArrayList<MapEntry>(component.getServiceProperties());
    if (!!!entries.isEmpty()) {
        try {
            if (component instanceof MutableServiceMetadata) {
                processingStack.add("Service Properties->");
                MutableServiceMetadata msm = (MutableServiceMetadata) component;
                for (MapEntry entry : entries) {
                    msm.removeServiceProperty(entry);
                }
                for (MapEntry entry : processMapEntries(entries)) {
                    msm.addServiceProperty(entry);
                }
            } else {
                printWarning(component, "Service Properties");
                processingStack.add("Service Properties->");
                processMapEntries(entries);
            }
        } finally {
            processingStack.removeLast();
        }
    }
    for (RegistrationListener listener : component.getRegistrationListeners()) {
        Target listenerComponent = listener.getListenerComponent();
        try {
            processingStack.add("Registration Listener " + listenerComponent + "->");
            if (listener instanceof MutableRegistrationListener) {
                ((MutableRegistrationListener) listener).setListenerComponent((Target) processMetadata(listenerComponent));
            } else {
                //Say that we can't change this listener, but continue processing
                //If the value is mutable then we may be ok!
                printWarning(listener, "Service Registration Listener");
                processMetadata(listenerComponent);
            }
        } finally {
            processingStack.removeLast();
        }
    }
    return component;
}

Example 7 with Target

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

the class AbstractPropertyPlaceholder method processServiceReferenceMetadata.

private Metadata processServiceReferenceMetadata(ServiceReferenceMetadata component) {
    if (component instanceof MutableServiceReferenceMetadata) {
        ValueMetadata valueMetadata = ((MutableServiceReferenceMetadata) component).getExtendedFilter();
        if (valueMetadata != null) {
            ((MutableServiceReferenceMetadata) component).setExtendedFilter(doProcessValueMetadata(valueMetadata));
        }
    }
    for (ReferenceListener listener : component.getReferenceListeners()) {
        Target listenerComponent = listener.getListenerComponent();
        try {
            processingStack.add("Reference Listener " + listenerComponent + "->");
            if (listener instanceof MutableReferenceListener) {
                ((MutableReferenceListener) listener).setListenerComponent((Target) processMetadata(listenerComponent));
            } else {
                //Say that we can't change this listener, but continue processing
                //If the value is mutable then we may be ok!
                printWarning(listener, "Reference Binding Listener");
                processMetadata(listenerComponent);
            }
        } finally {
            processingStack.removeLast();
        }
    }
    return component;
}

Example 8 with Target

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

the class Parser method parseTypeConverters.

private void parseTypeConverters(Element element) {
    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;
            Object target = null;
            if (isBlueprintNamespace(e.getNamespaceURI())) {
                if (nodeNameEquals(e, BEAN_ELEMENT)) {
                    target = parseBeanMetadata(e, true);
                } else if (nodeNameEquals(e, REF_ELEMENT)) {
                    String componentName = e.getAttribute(COMPONENT_ID_ATTRIBUTE);
                    target = new RefMetadataImpl(componentName);
                } else if (nodeNameEquals(e, REFERENCE_ELEMENT)) {
                    target = parseReference(e, true);
                }
            } else {
                target = parseCustomElement(e, null);
            }
            if (!(target instanceof Target)) {
                throw new ComponentDefinitionException("Metadata parsed for element " + e.getNodeName() + " can not be used as a type converter");
            }
            registry.registerTypeConverter((Target) target);
        }
    }
}

Example 9 with Target

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

the class Parser method parseService.

private ComponentMetadata parseService(Element element, boolean topElement) {
    ServiceMetadataImpl service = new ServiceMetadataImpl();
    boolean hasInterfaceNameAttribute = false;
    if (topElement) {
        service.setId(getId(element));
        service.setActivation(parseActivation(element));
    } else {
        service.setActivation(ComponentMetadata.ACTIVATION_LAZY);
    }
    if (element.hasAttribute(INTERFACE_ATTRIBUTE)) {
        service.setInterfaceNames(Collections.singletonList(element.getAttribute(INTERFACE_ATTRIBUTE)));
        hasInterfaceNameAttribute = true;
    }
    if (element.hasAttribute(REF_ATTRIBUTE)) {
        service.setServiceComponent(new RefMetadataImpl(element.getAttribute(REF_ATTRIBUTE)));
    }
    if (element.hasAttribute(DEPENDS_ON_ATTRIBUTE)) {
        service.setDependsOn(parseList(element.getAttribute(DEPENDS_ON_ATTRIBUTE)));
    }
    String autoExport = element.hasAttribute(AUTO_EXPORT_ATTRIBUTE) ? element.getAttribute(AUTO_EXPORT_ATTRIBUTE) : AUTO_EXPORT_DEFAULT;
    if (AUTO_EXPORT_DISABLED.equals(autoExport)) {
        service.setAutoExport(ServiceMetadata.AUTO_EXPORT_DISABLED);
    } else if (AUTO_EXPORT_INTERFACES.equals(autoExport)) {
        service.setAutoExport(ServiceMetadata.AUTO_EXPORT_INTERFACES);
    } else if (AUTO_EXPORT_CLASS_HIERARCHY.equals(autoExport)) {
        service.setAutoExport(ServiceMetadata.AUTO_EXPORT_CLASS_HIERARCHY);
    } else if (AUTO_EXPORT_ALL.equals(autoExport)) {
        service.setAutoExport(ServiceMetadata.AUTO_EXPORT_ALL_CLASSES);
    } else {
        throw new ComponentDefinitionException("Illegal value (" + autoExport + ") for " + AUTO_EXPORT_ATTRIBUTE + " attribute");
    }
    String ranking = element.hasAttribute(RANKING_ATTRIBUTE) ? element.getAttribute(RANKING_ATTRIBUTE) : RANKING_DEFAULT;
    try {
        service.setRanking(Integer.parseInt(ranking));
    } catch (NumberFormatException e) {
        throw new ComponentDefinitionException("Attribute " + RANKING_ATTRIBUTE + " must be a valid integer (was: " + ranking + ")");
    }
    // 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, INTERFACES_ELEMENT)) {
                    if (hasInterfaceNameAttribute) {
                        throw new ComponentDefinitionException("Only one of " + INTERFACE_ATTRIBUTE + " attribute or " + INTERFACES_ELEMENT + " element must be used");
                    }
                    service.setInterfaceNames(parseInterfaceNames(e));
                } else if (nodeNameEquals(e, SERVICE_PROPERTIES_ELEMENT)) {
                    List<MapEntry> entries = parseServiceProperties(e, service).getEntries();
                    service.setServiceProperties(entries);
                } else if (nodeNameEquals(e, REGISTRATION_LISTENER_ELEMENT)) {
                    service.addRegistrationListener(parseRegistrationListener(e, service));
                } else if (nodeNameEquals(e, BEAN_ELEMENT)) {
                    if (service.getServiceComponent() != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + BEAN_ELEMENT + " element, " + REFERENCE_ELEMENT + " element or " + REF_ELEMENT + " element can be set");
                    }
                    service.setServiceComponent((Target) parseBeanMetadata(e, false));
                } else if (nodeNameEquals(e, REF_ELEMENT)) {
                    if (service.getServiceComponent() != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + BEAN_ELEMENT + " element, " + REFERENCE_ELEMENT + " element or " + REF_ELEMENT + " 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");
                    }
                    service.setServiceComponent(new RefMetadataImpl(component));
                } else if (nodeNameEquals(e, REFERENCE_ELEMENT)) {
                    if (service.getServiceComponent() != null) {
                        throw new ComponentDefinitionException("Only one of " + REF_ATTRIBUTE + " attribute, " + BEAN_ELEMENT + " element, " + REFERENCE_ELEMENT + " element or " + REF_ELEMENT + " element can be set");
                    }
                    service.setServiceComponent((Target) parseReference(e, false));
                }
            }
        }
    }
    // Check service
    if (service.getServiceComponent() == null) {
        throw new ComponentDefinitionException("One of " + REF_ATTRIBUTE + " attribute, " + BEAN_ELEMENT + " element, " + REFERENCE_ELEMENT + " element or " + REF_ELEMENT + " element must be set");
    }
    // Check interface
    if (service.getAutoExport() == ServiceMetadata.AUTO_EXPORT_DISABLED && service.getInterfaces().isEmpty()) {
        throw new ComponentDefinitionException(INTERFACE_ATTRIBUTE + " attribute or " + INTERFACES_ELEMENT + " element must be set when " + AUTO_EXPORT_ATTRIBUTE + " is set to " + AUTO_EXPORT_DISABLED);
    }
    // Check for non-disabled auto-exports and interfaces
    if (service.getAutoExport() != ServiceMetadata.AUTO_EXPORT_DISABLED && !service.getInterfaces().isEmpty()) {
        throw new ComponentDefinitionException(INTERFACE_ATTRIBUTE + " attribute or  " + INTERFACES_ELEMENT + " element must not be set when " + AUTO_EXPORT_ATTRIBUTE + " is set to anything else than " + AUTO_EXPORT_DISABLED);
    }
    ComponentMetadata s = service;
    // Parse custom attributes
    s = handleCustomAttributes(element.getAttributes(), s);
    // Parse custom elements;
    s = handleCustomElements(element, s);
    return s;
}

Example 10 with Target

use of org.osgi.service.blueprint.reflect.Target 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;
}