Examples with Filter org.osgi.framework.Filter used on opensource projects

Example 46 with Filter

use of org.osgi.framework.Filter in project felix by apache.

the class EventDispatcher method fireEventImmediately.

private static void fireEventImmediately(EventDispatcher dispatcher, int type, Map<BundleContext, List<ListenerInfo>> listeners, EventObject event, Dictionary oldProps) {
    if (!listeners.isEmpty()) {
        // Notify appropriate listeners.
        for (Entry<BundleContext, List<ListenerInfo>> entry : listeners.entrySet()) {
            for (ListenerInfo info : entry.getValue()) {
                Bundle bundle = info.getBundle();
                EventListener l = info.getListener();
                Filter filter = info.getParsedFilter();
                Object acc = info.getSecurityContext();
                try {
                    if (type == Request.FRAMEWORK_EVENT) {
                        invokeFrameworkListenerCallback(bundle, l, event);
                    } else if (type == Request.BUNDLE_EVENT) {
                        invokeBundleListenerCallback(bundle, l, event);
                    } else if (type == Request.SERVICE_EVENT) {
                        invokeServiceListenerCallback(bundle, l, filter, acc, event, oldProps);
                    }
                } catch (Throwable th) {
                    if ((type != Request.FRAMEWORK_EVENT) || (((FrameworkEvent) event).getType() != FrameworkEvent.ERROR)) {
                        dispatcher.m_logger.log(bundle, Logger.LOG_ERROR, "EventDispatcher: Error during dispatch.", th);
                        dispatcher.fireFrameworkEvent(new FrameworkEvent(FrameworkEvent.ERROR, bundle, th));
                    }
                }
            }
        }
    }
}

Example 47 with Filter

use of org.osgi.framework.Filter in project felix by apache.

the class ServiceRegistry method getServiceReferences.

/**
 * Get available (and accessible) service references.
 *
 * @param className : required interface
 * @param expr : LDAP filter
 * @return : the list of available service references.
 * @throws InvalidSyntaxException
 *             occurs when the LDAP filter is malformed.
 */
public ServiceReference[] getServiceReferences(String className, String expr) throws InvalidSyntaxException {
    synchronized (m_regs) {
        // Define filter if expression is not null.
        Filter filter = null;
        if (expr != null) {
            filter = m_context.createFilter(expr);
        }
        List refs = new ArrayList();
        for (int i = 0; i < m_regs.size(); i++) {
            ServiceRegistrationImpl reg = (ServiceRegistrationImpl) m_regs.get(i);
            // Determine if the registered services matches the search
            // criteria.
            boolean matched = false;
            // If className is null, then look at filter only.
            if ((className == null) && ((filter == null) || filter.match(reg.getProperties()))) {
                matched = true;
            } else if (className != null) {
                // If className is not null, then first match the
                // objectClass property before looking at the
                // filter.
                Dictionary props = ((ServiceRegistrationImpl) reg).getProperties();
                String[] objectClass = (String[]) props.get(Constants.OBJECTCLASS);
                for (int classIdx = 0; classIdx < objectClass.length; classIdx++) {
                    if (objectClass[classIdx].equals(className) && ((filter == null) || filter.match(props))) {
                        matched = true;
                        break;
                    }
                }
            }
            // Add reference if it was a match.
            if (matched) {
                refs.add(reg.getReference());
            }
        }
        if (!refs.isEmpty()) {
            return (ServiceReference[]) refs.toArray(new ServiceReference[refs.size()]);
        }
        return null;
    }
}

Example 48 with Filter

use of org.osgi.framework.Filter in project felix by apache.

the class ServiceDependencyHandler method createServiceInstance.

/**
 * Create a Service instance object form the given Element.
 * This method parse the given element and configure the service instance object.
 * @param service : the Element describing the service instance
 * @param conf : the configuration from the composite instance
 * @throws ConfigurationException : the service instance cannot be created correctly
 */
private void createServiceInstance(Element service, Dictionary conf) throws ConfigurationException {
    // Prepare the configuration to append.
    Properties toAppend = new Properties();
    Enumeration keys = conf.keys();
    while (keys.hasMoreElements()) {
        String key = (String) keys.nextElement();
        if (!(key.equals("instance.name") || key.equals("component"))) {
            // Remove instance.name and component
            toAppend.put(key, conf.get(key));
        }
    }
    String spec = service.getAttribute("specification");
    if (spec == null) {
        throw new ConfigurationException("Malformed service : the specification attribute is mandatory");
    }
    // Cannot reinstantiate yourself
    String filter = "(&(!(factory.name=" + getCompositeManager().getFactory().getComponentDescription().getName() + "))(factory.state=1))";
    String givenFilter = service.getAttribute("filter");
    if (givenFilter != null) {
        // NOPMD
        filter = "(&" + filter + givenFilter + ")";
    }
    Filter fil;
    try {
        fil = getCompositeManager().getGlobalContext().createFilter(filter);
    } catch (InvalidSyntaxException e) {
        throw new ConfigurationException("Malformed filter " + filter, e);
    }
    Properties prop = new Properties();
    Element[] props = service.getElements("property");
    for (int k = 0; props != null && k < props.length; k++) {
        try {
            InstanceHandler.parseProperty(props[k], prop);
        } catch (ParseException e) {
            throw new ConfigurationException("An instance configuration is invalid", e);
        }
    }
    Properties instanceConfiguration = new Properties();
    instanceConfiguration.putAll(prop);
    instanceConfiguration.putAll(toAppend);
    String aggregate = service.getAttribute("aggregate");
    boolean agg = aggregate != null && aggregate.equalsIgnoreCase("true");
    String optional = service.getAttribute("optional");
    boolean opt = optional != null && optional.equalsIgnoreCase("true");
    int policy = DependencyMetadataHelper.getPolicy(service);
    Comparator cmp = DependencyMetadataHelper.getComparator(service, getCompositeManager().getGlobalContext());
    SvcInstance inst = new SvcInstance(this, spec, instanceConfiguration, agg, opt, fil, cmp, policy);
    m_instances.add(inst);
    String sources = service.getAttribute("context-source");
    if (sources != null) {
        SourceManager source = new SourceManager(sources, filter, inst, getCompositeManager());
        if (m_sources == null) {
            m_sources = new ArrayList(1);
        }
        m_sources.add(source);
    }
}

Example 49 with Filter

use of org.osgi.framework.Filter in project felix by apache.

the class ServiceDependencyHandler method createServiceImport.

/**
 * Create a Service importer object from the given Element.
 * This method parse the given element and configure the service importer object.
 * @param imp : Element describing the import
 * @param confFilter : instance filter customization
 * @throws ConfigurationException : the service importer cannot be created correctly
 */
private void createServiceImport(Element imp, Dictionary confFilter) throws ConfigurationException {
    boolean optional = false;
    boolean aggregate = false;
    String specification = imp.getAttribute("specification");
    if (specification == null) {
        // Malformed import
        error("Malformed import: the specification attribute is mandatory");
        throw new ConfigurationException("Malformed import : the specification attribute is mandatory");
    } else {
        String opt = imp.getAttribute("optional");
        optional = opt != null && opt.equalsIgnoreCase("true");
        String agg = imp.getAttribute("aggregate");
        aggregate = agg != null && agg.equalsIgnoreCase("true");
        // Cannot import yourself
        String original = "(&(objectClass=" + specification + ")(!(instance.name=" + getCompositeManager().getInstanceName() + ")))";
        String filter = original;
        String givenFilter = imp.getAttribute("filter");
        if (givenFilter != null) {
            // NOPMD
            filter = "(&" + filter + givenFilter + ")";
        }
        String identitity = imp.getAttribute("id");
        String scope = imp.getAttribute("scope");
        // Get the default bundle context.
        BundleContext context = getCompositeManager().getGlobalContext();
        if (scope != null) {
            if (scope.equalsIgnoreCase("global")) {
                context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.GLOBAL);
            } else if (scope.equalsIgnoreCase("composite")) {
                context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.LOCAL);
            } else if (scope.equalsIgnoreCase("composite+global")) {
                context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.LOCAL_AND_GLOBAL);
            }
        }
        // Configure instance filter if available
        if (confFilter != null && identitity != null && confFilter.get(identitity) != null) {
            filter = "(&" + original + (String) confFilter.get(identitity) + ")";
        }
        Filter fil = null;
        if (filter != null) {
            try {
                fil = getCompositeManager().getGlobalContext().createFilter(filter);
            } catch (InvalidSyntaxException e) {
                throw new ConfigurationException("A required filter " + filter + " is malformed", e);
            }
        }
        Comparator cmp = DependencyMetadataHelper.getComparator(imp, getCompositeManager().getGlobalContext());
        Class spec = DependencyMetadataHelper.loadSpecification(specification, getCompositeManager().getGlobalContext());
        int policy = DependencyMetadataHelper.getPolicy(imp);
        ServiceImporter importer = new ServiceImporter(spec, fil, aggregate, optional, cmp, policy, context, identitity, this);
        m_importers.add(importer);
        String sources = imp.getAttribute("context-source");
        if (sources != null) {
            SourceManager source = new SourceManager(sources, filter, importer, getCompositeManager());
            if (m_sources == null) {
                m_sources = new ArrayList(1);
            }
            m_sources.add(source);
        }
    }
}

Example 50 with Filter

use of org.osgi.framework.Filter in project felix by apache.

the class FilterTest method testMissingAttribute.

public void testMissingAttribute() {
    Dictionary dict = new Hashtable();
    dict.put("one", "one-value");
    dict.put("two", "two-value");
    dict.put("three", "three-value");
    Filter filter = null;
    try {
        filter = FrameworkUtil.createFilter("(missing=value)");
    } catch (Exception ex) {
        assertTrue("Filter should parse: " + ex, false);
    }
    assertFalse("Filter should not match: " + filter, filter.match(dict));
}