diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta2-RC1/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0-Beta2-RC1/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java | 633 |
1 files changed, 0 insertions, 633 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC1/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java b/sca-java-2.x/tags/2.0-Beta2-RC1/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java deleted file mode 100644 index 86045b014e..0000000000 --- a/sca-java-2.x/tags/2.0-Beta2-RC1/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java +++ /dev/null @@ -1,633 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.node; - -import static org.apache.tuscany.sca.node.ContributionLocationHelper.getContributionLocations; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.Reader; -import java.lang.reflect.InvocationTargetException; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URISyntaxException; -import java.net.URL; -import java.net.URLConnection; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.HashMap; -import java.util.List; -import java.util.Map; -import java.util.Properties; - -import org.apache.tuscany.sca.node.configuration.DefaultNodeConfigurationFactory; -import org.apache.tuscany.sca.node.configuration.NodeConfiguration; -import org.apache.tuscany.sca.node.configuration.NodeConfigurationFactory; -import org.oasisopen.sca.ServiceReference; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * A factory for SCA processing nodes. An SCA processing node can be loaded - * with an SCA composite and the SCA contributions required by the composite. - * - * @version $Rev$ $Date$ - * @tuscany.spi.extension.asclient - */ -public abstract class NodeFactory extends DefaultNodeConfigurationFactory { - /** - * Default location of contribution metadata in an SCA contribution. - */ - private static final String SCA_CONTRIBUTION_META = "META-INF/sca-contribution.xml"; - - /** - * Default location of a generated contribution metadata in an SCA contribution. - */ - private static final String SCA_CONTRIBUTION_GENERATED_META = "META-INF/sca-contribution-generated.xml"; - - protected static NodeFactory instance; - protected static Class<?> factoryImplClass; - - protected static List<NodeFactory> factories = new ArrayList<NodeFactory>(); - - protected static void setNodeFactory(NodeFactory factory) { - instance = factory; - } - - public static class NodeProxy implements Node { - private Object node; - - private NodeProxy(Object node) { - super(); - this.node = node; - } - - public static <T> T createProxy(Class<T> type, Object node) { - try { - return type.getDeclaredConstructor(Object.class).newInstance(node); - } catch (Exception e) { - throw new IllegalArgumentException(e); - } - } - - public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException { - try { - return (R)node.getClass().getMethod("cast", Object.class).invoke(node, target); - } catch (Throwable e) { - handleException(e); - return null; - } - } - - public <B> B getService(Class<B> businessInterface, String serviceName) { - try { - return (B)node.getClass().getMethod("getService", Class.class, String.class).invoke(node, businessInterface, serviceName); - } catch (Throwable e) { - handleException(e); - return null; - } - } - - public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String serviceName) { - try { - return (ServiceReference<B>)node.getClass().getMethod("getServiceReference", Class.class, String.class).invoke(node, businessInterface, serviceName); - } catch (Throwable e) { - handleException(e); - return null; - } - } - - public Node start() { - try { - return new NodeProxy(node.getClass().getMethod("start").invoke(node)); - } catch (Throwable e) { - handleException(e); - return null; - } - } - - public void stop() { - try { - node.getClass().getMethod("stop").invoke(node); - } catch (Throwable e) { - handleException(e); - } - } - - public void destroy() { - try { - node.getClass().getMethod("destroy").invoke(node); - } catch (Throwable e) { - handleException(e); - } - } - - private static void handleException(Throwable ex) { - if (ex instanceof InvocationTargetException) { - ex = ((InvocationTargetException)ex).getTargetException(); - } - if (ex instanceof RuntimeException) { - throw (RuntimeException)ex; - } - if (ex instanceof Error) { - throw (Error)ex; - } else { - throw new RuntimeException(ex); - } - } - - } - - /** - * Returns the SCA node factory instance. - * - * @return the SCA node factory - */ - public synchronized static NodeFactory getInstance() { - if (instance == null) { - instance = newInstance(); - } - return instance; - } - - /** - * Returns a new SCA node factory instance. - * - * @return a new SCA node factory - */ - public static NodeFactory newInstance() { - NodeFactory nodeFactory = null; - try { - Class<?> factoryClass = getFactoryImplClass(); - nodeFactory = (NodeFactory)factoryClass.newInstance(); - - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - factories.add(nodeFactory); - return nodeFactory; - } - - public static NodeFactory newInstance(Map<String, Map<String, String>> attributes) { - NodeFactory nodeFactory = null; - try { - Class<?> factoryClass = getFactoryImplClass(); - nodeFactory = (NodeFactory)factoryClass.newInstance(); - nodeFactory.configure(attributes); - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - factories.add(nodeFactory); - return nodeFactory; - } - - protected Properties properties; - - protected NodeFactory() { - this.properties = new Properties(); - properties.setProperty("defaultScheme", "vm"); - properties.setProperty("defaultDomainName", "default"); - } - - public static NodeFactory newInstance(Properties configProperties) { - NodeFactory nodeFactory = null; - try { - Class<?> factoryClass = getFactoryImplClass(); - nodeFactory = (NodeFactory)factoryClass.newInstance(); - nodeFactory.properties = configProperties; - nodeFactory.configure(new HashMap<String, Map<String,String>>()); - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - factories.add(nodeFactory); - return nodeFactory; - } - - public static NodeFactory newInstance(String configURI) { - Properties properties; - if (configURI == null || configURI.length() < 1) { - return newInstance(); - } else if (configURI.startsWith("properties:")) { - try { - properties = loadProperties(configURI.substring("properties:".length())); - } catch (IOException e) { - throw new ServiceRuntimeException(e); - } - } else if (configURI.startsWith("uri:")) { - properties = parseConfigURI(configURI.substring("uri:".length())); - } else { - properties = new Properties(); - properties.setProperty("defaultDomainName", configURI); - } - return newInstance(properties); - } - - /** - * Parse the config string into a Properties object. - * The config URI has the following format: - * uri:<domainName>?name=value&... - */ - private static Properties parseConfigURI(String configURI) { - Properties properties = new Properties(); - int qm = configURI.indexOf('?'); - if (qm < 0) { - properties.setProperty("defaultDomainName", configURI); - } else { - if (qm == 0) { - properties.setProperty("defaultDomainName", "default"); - } else { - properties.setProperty("defaultDomainName", configURI.substring(0, qm)); - } - if (configURI.length() > qm+1) { - Map<String, String> params = new HashMap<String, String>(); - for (String param : configURI.substring(qm+1).split("&")) { - String[] px = param.split("="); - if (px.length == 2) { - params.put(px[0], px[1]); - } else { - params.put(px[0], ""); - } - } - for (String name : params.keySet()) { - properties.setProperty(name, params.get(name)); - } - } - } - return properties; - } - - /** - * load the properties from external URL or a relative file - * properties:<url to properties file> - */ - private static Properties loadProperties(String propsURL) throws IOException { - - Properties properties = new Properties(); - File file = new File(propsURL); - - InputStream inputStream = null; - if (file.exists()) { - inputStream = new FileInputStream(file); - } else { - URL url = null; - try { - url = new URL(propsURL); - } catch (MalformedURLException e) { - inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(propsURL); - if (inputStream == null) { - throw new IOException("File does not exist: " + propsURL + ", could not be found on the classpath and is not a valid URL: " + e); - } - } - if (inputStream == null && url != null) { - inputStream = url.openStream(); - } - } - if (inputStream != null) { - properties.load(inputStream); - inputStream.close(); - } - - return properties; - } - - /** - * Configure the NodeFactory instance - * @param attributes - */ - public void configure(Map<String, Map<String, String>> attributes) { - } - - private synchronized static Class<?> getFactoryImplClass() throws Exception { - if (factoryImplClass == null) { - // Use reflection APIs to call ServiceDiscovery to avoid hard dependency to tuscany-extensibility - try { - Class<?> discoveryClass = Class.forName("org.apache.tuscany.sca.extensibility.ServiceDiscovery"); - Object instance = discoveryClass.getMethod("getInstance").invoke(null); - Object factoryDeclaration = - discoveryClass.getMethod("getServiceDeclaration", Class.class).invoke(instance, NodeFactory.class); - if (factoryDeclaration != null) { - factoryImplClass = - (Class<?>)factoryDeclaration.getClass().getMethod("loadClass").invoke(factoryDeclaration); - } - } catch (ClassNotFoundException e) { - // Ignore - } - - if (factoryImplClass == null) { - // Fail back to default impl - String className = "org.apache.tuscany.sca.node.impl.NodeFactoryImpl"; - - factoryImplClass = Class.forName(className); - } - } - return factoryImplClass; - } - - /** - * Open a URL connection without cache - * @param url - * @return - * @throws IOException - */ - private static InputStream openStream(URL url) throws IOException { - InputStream is = null; - URLConnection connection = url.openConnection(); - connection.setUseCaches(false); - is = connection.getInputStream(); - return is; - } - - /** - * Escape the space in URL string - * @param uri - * @return - */ - private static URI createURI(String uri) { - int index = uri.indexOf(':'); - String scheme = null; - String ssp = uri; - if (index != -1) { - scheme = uri.substring(0, index); - ssp = uri.substring(index + 1); - } - try { - return new URI(scheme, ssp, null); - } catch (URISyntaxException e) { - throw new IllegalArgumentException(e); - } - } - - /** - * Creates a new SCA node from the configuration URL - * - * @param configurationURL the URL of the node configuration which is the XML document - * that contains the URI of the composite and a collection of URLs for the contributions - * - * @return a new SCA node. - */ - public Node createNode(URL configurationURL) { - try { - InputStream is = openStream(configurationURL); - NodeConfiguration configuration = loadConfiguration(is, configurationURL); - return createNode(configuration); - } catch (IOException e) { - throw new ServiceRuntimeException(e); - } - } - - /** - * Creates a new SCA node from the XML configuration of the node - * @param is The input stream that the XML configuration can be read. The stream will be closed - * after this call. - * @return a new SCA node - */ - public Node createNode(InputStream is) { - NodeConfiguration configuration = loadConfiguration(is, null); - return createNode(configuration); - } - - /** - * Creates a new SCA node. - * - * @param deploymentCompositeURI the URI of the deployment composite. If the URI is relative, it should - * be resolved against the first contribution. Otherwise, the absolute URI is used to load the XML - * description of the composite. The deployment composite will be attached to the first contribution. - * - * @param contributions the URI of the contributions that provides the composites and related - * artifacts. If the list is empty, then we will use the thread context classloader to discover - * the contribution on the classpath - * - * @return a new SCA node. - */ - public Node createNode(String deploymentCompositeURI, Contribution... contributions) { - if (contributions == null || contributions.length == 0) { - if (deploymentCompositeURI == null || deploymentCompositeURI.indexOf(':') != -1) { - throw new ServiceRuntimeException("No SCA contribution is provided or discovered"); - } - // Try to find contributions on the classpath by the composite URI - List<String> locations = getContributionLocations(null, deploymentCompositeURI); - if (locations.isEmpty()) { - throw new ServiceRuntimeException("No SCA contributions are found on the classpath"); - } - contributions = getContributions(locations); - } - NodeConfiguration configuration = createConfiguration(contributions); - if (deploymentCompositeURI != null && configuration.getContributions().size() > 0) { - configuration.getContributions().get(0).addDeploymentComposite(createURI(deploymentCompositeURI)); - } - return createNode(configuration); - } - - public final Node createNode(URI domainRegistryURI, String... locations) { - return createNode(domainRegistryURI, null, locations); - } - - public final Node createNode(URI domainRegistryURI, String deploymentCompositeURI, String[] locations) { - Contribution[] contributions = getContributions(Arrays.asList(locations)); - NodeConfiguration configuration = createConfiguration(contributions); - if (deploymentCompositeURI != null && configuration.getContributions().size() > 0) { - configuration.getContributions().get(0).addDeploymentComposite(createURI(deploymentCompositeURI)); - } - configuration.setDomainRegistryURI(domainRegistryURI.toString()); - configuration.setDomainURI(getDomainURI(domainRegistryURI)); - return createNode(configuration); - } - - /** - * TODO: cleanup node use of registry uri, domain uri, and domain name - * so that its consistent across the code base - */ - public static String getDomainURI(URI configURI) { - String s = configURI.getHost(); - if (s == null) { - s = configURI.getSchemeSpecificPart(); - if (s != null) { - if (s.indexOf('?') > -1) { - s = s.substring(0, s.indexOf('?')); - } - } - } - return s; - } - - /** - * The following methods are used by the node launcher - */ - public final Node createNode(String deploymentCompositeURI, String[] uris, String locations[]) { - return createNode(deploymentCompositeURI, getContributions(Arrays.asList(uris), Arrays.asList(locations))); - } - - public final Node createNode(String deploymentCompositeURI, String locations[]) { - return createNode(deploymentCompositeURI, getContributions(Arrays.asList(locations))); - } - - public final Node createNode(Reader deploymentCompositeContent, String[] uris, String locations[]) { - return createNode(deploymentCompositeContent, getContributions(Arrays.asList(uris), Arrays.asList(locations))); - } - - public final Node createNode(String compositeURI, ClassLoader classLoader) { - List<String> locations = ContributionLocationHelper.getContributionLocations(classLoader, compositeURI); - return createNode(compositeURI, locations.toArray(new String[locations.size()])); - } - /** - * ------------------- end of methods ----------------- - */ - - /** - * Create a new SCA node using the list of SCA contributions - * @param contributions - * @return - */ - public Node createNode(Contribution... contributions) { - NodeConfiguration configuration = createConfiguration(contributions); - return createNode(configuration); - } - - - /** - * Creates a new SCA node. - * - * @param compositeContent the XML content of the deployment composite - * @param contributions the URI of the contributions that provides the composites and related artifacts - * @return a new SCA node. - */ - public Node createNode(InputStream compositeContent, Contribution... contributions) { - NodeConfiguration configuration = createConfiguration(contributions); - if (compositeContent != null && configuration.getContributions().size() > 0) { - configuration.getContributions().get(0).addDeploymentComposite(compositeContent); - } - return createNode(configuration); - } - - /** - * Creates a new SCA node. - * - * @param compositeContent the XML content of the deployment composite - * @param contributions the URI of the contributions that provides the composites and related artifacts - * @return a new SCA node. - */ - public Node createNode(Reader compositeContent, Contribution... contributions) { - NodeConfiguration configuration = createConfiguration(contributions); - if (compositeContent != null && configuration.getContributions().size() > 0) { - configuration.getContributions().get(0).addDeploymentComposite(compositeContent); - } - return createNode(configuration); - } - - /** - * Creates a new SCA node using defaults for the contribution location and deployable composites. - * By default, it uses the Thread context classloader to find META-INF/sca-contribution.xml or - * META-INF/sca-contribution-generated.xml on the classpath. The locations that contain such resources - * are taken as the SCA contributions. - * - * @return a new SCA node. - */ - public Node createNode() { - List<String> locations = new ArrayList<String>(); - locations.addAll(getContributionLocations(null, SCA_CONTRIBUTION_META)); - locations.addAll(getContributionLocations(null, SCA_CONTRIBUTION_GENERATED_META)); - if (locations.isEmpty()) { - throw new ServiceRuntimeException("No SCA contributions are found on the classpath"); - } - Contribution[] contributions = getContributions(locations); - return createNode(contributions); - } - - private NodeConfiguration createConfiguration(Contribution... contributions) { - NodeConfigurationFactory factory = this; - NodeConfiguration configuration = factory.createNodeConfiguration(); - if (properties.getProperty("defaultDomainName") != null) { - configuration.setDomainURI(properties.getProperty("defaultDomainName")); - } - // Make sure a unique node URI is created for the same node factory - configuration.setURI(generateNodeURI()); - if (contributions != null) { - for (Contribution c : contributions) { - configuration.addContribution(c.getURI(), c.getLocation()); - } - } - return configuration; - } - - private static int count = 0; - - protected synchronized String generateNodeURI() { - return Node.DEFAULT_NODE_URI + (count++); - } - - private Contribution[] getContributions(List<String> locations) { - Contribution[] contributions = new Contribution[locations.size()]; - int index = 0; - for (String location : locations) { - contributions[index++] = new Contribution(location, location); - } - return contributions; - } - - private Contribution[] getContributions(List<String> uris, List<String> locations) { - if (uris.size() != locations.size()) { - throw new IllegalArgumentException("The number of URIs does not match the number of locations"); - } - Contribution[] contributions = new Contribution[locations.size()]; - for (int i = 0, n = locations.size(); i < n; i++) { - contributions[i] = new Contribution(uris.get(i), locations.get(i)); - } - return contributions; - } - - public void destroy() { - count = 0; - instance = null; - factories.remove(this); - } - - public static List<NodeFactory> getNodeFactories() { - return factories; - } - - /** - * Create a new SCA node based on the configuration - * @param configuration The configuration of a node - * @return The SCA node - */ - public abstract Node createNode(NodeConfiguration configuration); - - /** - * Create an SCA node from a list of pre-built o.a.t.sca.contribution.Contribution objects. - * Pass java.lang.Objects for now as this class doesn't have direct dependencies on - * o.a.t.sca.contribution.Contribution. - */ - public abstract Node createNode(List<?> contributions); - - /** - * Create the node configuration from the XML document - * @param configuration The input stream of the XML document - * @return The node configuration - */ - public abstract NodeConfiguration loadConfiguration(InputStream xml, URL base); - - public abstract <T> T getExtensionPointRegistry(); - - public abstract void init(); - - public void setAutoDestroy(boolean b) { - } -} |