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authorlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-11-19 00:10:54 +0000
committerlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-11-19 00:10:54 +0000
commit60744a36aae604ac3c4499ed54f1082ab8f5947d (patch)
treee31d312659c912cdf29ef7a677406795fe5b3726 /java/sca/modules/node-api/src/main
parentad1c9458ea08eb593be252b706a88568f17c494c (diff)
Copying modules from Equinox branch, to start merging the delta changes from 1.x/original trunk
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@718815 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/sca/modules/node-api/src/main')
-rw-r--r--java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Client.java71
-rw-r--r--java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Contribution.java54
-rw-r--r--java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/ContributionLocationHelper.java101
-rw-r--r--java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java47
-rw-r--r--java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java192
5 files changed, 465 insertions, 0 deletions
diff --git a/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Client.java b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Client.java
new file mode 100644
index 0000000000..8ca5262eff
--- /dev/null
+++ b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Client.java
@@ -0,0 +1,71 @@
+/*
+ * 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 org.osoa.sca.CallableReference;
+import org.osoa.sca.ServiceReference;
+
+
+/**
+ * Provides client access to the services in a domain.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Client {
+
+ /**
+ * Cast a type-safe reference to a CallahbleReference. Converts a type-safe
+ * reference to an equivalent CallableReference; if the target refers to a
+ * service then a ServiceReference will be returned, if the target refers to
+ * a callback then a CallableReference will be returned.
+ *
+ * @param target a reference proxy provided by the SCA runtime
+ * @param <B> the Java type of the business interface for the reference
+ * @param <R> the type of reference to be returned
+ * @return a CallableReference equivalent for the proxy
+ * @throws IllegalArgumentException if the supplied instance is not a
+ * reference supplied by the SCA runtime
+ */
+ <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException;
+
+ /**
+ * Returns a proxy for a service provided by a component in the SCA domain.
+ *
+ * @param businessInterface the interface that will be used to invoke the
+ * service
+ * @param serviceName the name of the service
+ * @param <B> the Java type of the business interface for the service
+ * @return an object that implements the business interface
+ */
+ <B> B getService(Class<B> businessInterface, String serviceName);
+
+ /**
+ * Returns a ServiceReference for a service provided by a component in the
+ * SCA domain.
+ *
+ * @param businessInterface the interface that will be used to invoke the
+ * service
+ * @param serviceName the name of the service
+ * @param <B> the Java type of the business interface for the service
+ * @return a ServiceReference for the designated service
+ */
+ <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String serviceName);
+
+} \ No newline at end of file
diff --git a/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Contribution.java b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Contribution.java
new file mode 100644
index 0000000000..f69e18dc63
--- /dev/null
+++ b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Contribution.java
@@ -0,0 +1,54 @@
+/*
+ * 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;
+
+/**
+ * Represents an SCA contribution uri + location.
+ */
+public final class Contribution {
+ private String uri;
+ private String location;
+
+ /**
+ * Constructs a new SCA contribution.
+ *
+ * @param uri The URI that uniquely identifies the contribution in the SCA domain
+ * @param location The URL of the contribution archive
+ */
+ public Contribution(String uri, String location) {
+ this.uri = uri;
+ this.location = location;
+ }
+
+ /**
+ * Get the URI of the contribution
+ * @return The URI that uniquely identifies the contribution in the SCA domain
+ */
+ public String getURI() {
+ return uri;
+ }
+
+ /**
+ * The location of the contribution
+ * @return The URL of the contribution archive
+ */
+ public String getLocation() {
+ return location;
+ }
+} \ No newline at end of file
diff --git a/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/ContributionLocationHelper.java b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/ContributionLocationHelper.java
new file mode 100644
index 0000000000..96a25dfa63
--- /dev/null
+++ b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/ContributionLocationHelper.java
@@ -0,0 +1,101 @@
+/*
+ * 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 java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+/**
+ * ContributionLocationHelper
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionLocationHelper {
+
+ /**
+ * Returns the location of the SCA contribution containing the given class.
+ *
+ * @param anchorClass
+ * @return
+ */
+ public static String getContributionLocation(final Class<?> anchorClass) {
+ URL url = AccessController.doPrivileged(new PrivilegedAction<URL>() {
+ public URL run() {
+ return anchorClass.getProtectionDomain().getCodeSource().getLocation();
+ }
+ });
+ String uri = url.toString();
+ return uri;
+ }
+
+ /**
+ * Find the contribution location by seraching a resource on the classpath
+ * @param resourceName
+ * @return
+ */
+ public static String getContributionLocation(String resourceName) {
+ return getContributionLocation(null, resourceName);
+
+ }
+
+ /**
+ * Find the contribution location by seraching a resource using the given classloader
+ * @param classLoader
+ * @param resourceName
+ * @return
+ */
+ public static String getContributionLocation(ClassLoader classLoader, String resourceName) {
+ if (classLoader == null) {
+ classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+ public ClassLoader run() {
+ return Thread.currentThread().getContextClassLoader();
+ }
+ });
+ }
+ URL resourceURL = getResource(classLoader, resourceName);
+ if (resourceURL == null) {
+ return null;
+ }
+ String location = null;
+ // "jar:file://....../something.jar!/a/b/c/app.composite"
+ String url = resourceURL.toExternalForm();
+ String protocol = resourceURL.getProtocol();
+ if ("file".equals(protocol)) {
+ // directory contribution
+ if (url.endsWith(resourceName)) {
+ location = url.substring(0, url.lastIndexOf(resourceName));
+ }
+ } else if ("jar".equals(protocol) || "wsjar".equals(protocol) || "zip".equals(protocol)) {
+ // jar contribution
+ location = url.substring(protocol.length() + 1, url.lastIndexOf("!/"));
+ }
+ return location;
+ }
+
+ private static URL getResource(final ClassLoader classLoader, final String compositeURI) {
+ return AccessController.doPrivileged(new PrivilegedAction<URL>() {
+ public URL run() {
+ return classLoader.getResource(compositeURI);
+ }
+ });
+ }
+
+}
diff --git a/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java
new file mode 100644
index 0000000000..3f4998bcc9
--- /dev/null
+++ b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java
@@ -0,0 +1,47 @@
+/*
+ * 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;
+
+
+
+/**
+ * Represents an SCA processing node.
+ * A node is loaded with an SCA composites. It can start and stop that composite.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Node extends Client {
+
+ /**
+ * Start the composite loaded in the node.
+ */
+ void start();
+
+ /**
+ * Stop the composite loaded in the node.
+ */
+ void stop();
+
+ /**
+ * Destroy the node.
+ */
+ void destroy();
+
+}
diff --git a/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java
new file mode 100644
index 0000000000..a9f75fc8be
--- /dev/null
+++ b/java/sca/modules/node-api/src/main/java/org/apache/tuscany/sca/node/NodeFactory.java
@@ -0,0 +1,192 @@
+/*
+ * 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 java.lang.reflect.InvocationTargetException;
+
+import org.osoa.sca.CallableReference;
+import org.osoa.sca.ServiceReference;
+import org.osoa.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 $Rev$ $Date$
+ */
+public abstract class NodeFactory {
+
+ public static class NodeProxy implements Node, Client {
+ 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 CallableReference<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 void start() {
+ try {
+ node.getClass().getMethod("start").invoke(node);
+ } catch (Throwable e) {
+ handleException(e);
+ }
+ }
+
+ 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 a new SCA node factory instance.
+ *
+ * @return a new SCA node factory
+ */
+ public static NodeFactory newInstance() {
+ NodeFactory scaNodeFactory = null;
+
+ try {
+ // final ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+ // 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("getFirstServiceDeclaration", String.class).invoke(instance, NodeFactory.class.getName());
+ if (factoryDeclaration != null) {
+ Class<?> factoryImplClass = (Class<?>)factoryDeclaration.getClass().getMethod("loadClass").invoke(factoryDeclaration);
+ scaNodeFactory = (NodeFactory)factoryImplClass.newInstance();
+ return scaNodeFactory;
+ }
+ } catch (ClassNotFoundException e) {
+ // Ignore
+ }
+
+ // Fail back to default impl
+ String className = "org.apache.tuscany.sca.node.impl.NodeFactoryImpl";
+
+ Class<?> cls = Class.forName(className);
+ scaNodeFactory = (NodeFactory)cls.newInstance();
+ return scaNodeFactory;
+
+ } catch (Exception e) {
+ throw new ServiceRuntimeException(e);
+ }
+ }
+
+ /**
+ * Creates a new SCA node from the configuration URL
+ *
+ * @param configurationURL the URL of the node configuration which is the ATOM feed
+ * that contains the URI of the composite and a collection of URLs for the contributions
+ *
+ * @return a new SCA node.
+ */
+ public abstract Node createNode(String configurationURL);
+
+ /**
+ * Creates a new SCA node.
+ *
+ * @param compositeURI the URI of the composite to use
+ * @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 abstract Node createNode(String compositeURI, Contribution... contributions);
+
+ /**
+ * Creates a new SCA node.
+ *
+ * @param compositeURI the URI of the composite to use
+ * @param compositeContent the XML content of the composite to use
+ * @param contributions the URI of the contributions that provides the composites and related artifacts
+ * @return a new SCA node.
+ */
+ public abstract Node createNode(String compositeURI,
+ String compositeContent,
+ Contribution... contributions);
+
+}