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-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/SCARuntime.java251
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyException.java164
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyRuntimeException.java168
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/DataType.java45
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/IDLMapping.java51
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/LogLevel.java40
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Monitor.java34
-rw-r--r--branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Resource.java49
8 files changed, 802 insertions, 0 deletions
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/SCARuntime.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/SCARuntime.java
new file mode 100644
index 0000000000..15b9731121
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/SCARuntime.java
@@ -0,0 +1,251 @@
+/*
+ * 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.api;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+import org.osoa.sca.ComponentContext;
+
+/**
+ * SCARuntime is used to start a Tuscany SCA runtime.
+ */
+public abstract class SCARuntime {
+ public static final String DEFAULT_SYSTEM_SCDL = "META-INF/tuscany/default-system.composite";
+ public static final String SYSTEM_SCDL = "system.composite";
+ public static final String EXTENSION_SCDL = "META-INF/sca/extension.composite";
+ public static final String SERVICE_SCDL = "META-INF/sca/service.composite";
+ public static final String META_APPLICATION_SCDL = "META-INF/sca/application.composite";
+ public static final String APPLICATION_SCDL = "application.composite";
+
+ private static SCARuntime instance;
+
+ /**
+ * Read the service name from a configuration file
+ *
+ * @param classLoader
+ * @param name The name of the service class
+ * @return A class name which extends/implements the service class
+ * @throws IOException
+ */
+ private static String getServiceName(ClassLoader classLoader, String name) throws IOException {
+ InputStream is = classLoader.getResourceAsStream("META-INF/services/" + name);
+ if (is == null) {
+ return null;
+ }
+ BufferedReader reader = null;
+ try {
+ reader = new BufferedReader(new InputStreamReader(is));
+ while (true) {
+ String line = reader.readLine();
+ if (line == null) {
+ break;
+ } else if (!line.startsWith("#")) {
+ return line.trim();
+ }
+ }
+ } finally {
+ if (reader != null) {
+ reader.close();
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Returns a SCARuntime instance. If the system property "org.apache.tuscany.api.SCARuntime" is set, its value is
+ * used as the name of the implementation class. Otherwise, if the resource
+ * "META-INF/services/org.apache.tuscany.api.SCARuntime" can be loaded from the supplied classloader. Otherwise, it
+ * will use "org.apache.tuscany.core.bootstrap.DefaultSCARuntime" as the default. The named class is loaded from the
+ * supplied classloader and instantiated using its default (no-arg) constructor.
+ *
+ * @return
+ */
+ private static SCARuntime newInstance(final ClassLoader classLoader) {
+
+ try {
+ final String name = SCARuntime.class.getName();
+ String className = AccessController.doPrivileged(new PrivilegedAction<String>() {
+ public String run() {
+ return System.getProperty(name);
+ }
+ });
+
+ if (className == null) {
+ className = getServiceName(classLoader, name);
+ }
+ if (className == null) {
+ className = "org.apache.tuscany.core.bootstrap.DefaultSCARuntime";
+ }
+ Class cls = Class.forName(className, true, classLoader);
+ return (SCARuntime)cls.newInstance(); // NOPMD lresende
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Get an instance of SCA Runtime
+ *
+ * @return The instance
+ */
+ public synchronized static SCARuntime getInstance() { // NOPMD
+ if (instance != null) {
+ return instance;
+ }
+ ClassLoader classLoader = SCARuntime.class.getClassLoader();
+ instance = newInstance(classLoader);
+ return instance;
+ }
+
+ /**
+ * Start the Tuscany runtime using default SCDLs
+ */
+ public static void start() {
+ try {
+ getInstance().startup(null, null, null, null);
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Start the SCA Runtime with the given SCDLs
+ *
+ * @param system The URL for the system SCDL
+ * @param extensions An array of URLs for extensions
+ * @param application The URL for the application SCDL
+ */
+ public static void start(URL system, URL[] extensions, URL application, String compositePath) {
+ try {
+ getInstance().startup(system, extensions, application, compositePath);
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Start the SCA Runtime with the given SCDL
+ *
+ * @param application The URL for the application SCDL
+ */
+ public static void start(URL application, String compositePath) {
+ try {
+ getInstance().startup(null, null, application, compositePath);
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Start the SCA Runtime with the given SCDL
+ *
+ * @param compositePath The path of the application SCDL
+ */
+ public static void start(String compositePath) {
+ try {
+ ClassLoader cl = Thread.currentThread().getContextClassLoader();
+ URL applicationURL = cl.getResource(compositePath);
+ getInstance().startup(null, null, applicationURL, compositePath);
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Start the SCA Runtime with the given SCDL
+ *
+ * @param compositePath The path of the system SCDL
+ * @param compositePath The path of the application SCDL
+ */
+ public static void start(String system, String compositePath) {
+ try {
+ ClassLoader cl = Thread.currentThread().getContextClassLoader();
+ URL systemURL = cl.getResource(system);
+ URL applicationURL = cl.getResource(compositePath);
+ getInstance().startup(systemURL, null, applicationURL, compositePath);
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Get the ComponentContext by name
+ *
+ * @param componentName
+ * @return
+ */
+ public static ComponentContext getComponentContext(String componentName) {
+ return getInstance().getContext(componentName);
+ }
+
+ /**
+ * Get access to a system service
+ *
+ * @param serviceName
+ * @return
+ */
+ protected abstract Object getSystemService(String serviceName);
+
+ /**
+ * Stop the SCA Runtime
+ */
+ public static void stop() {
+ try {
+ getInstance().shutdown();
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ } finally {
+ instance = null;
+ }
+ }
+
+ /**
+ * Look up the ComponentContext by name
+ *
+ * @param componentName
+ * @return
+ */
+ protected abstract ComponentContext getContext(String componentName);
+
+ /**
+ * Start up the runtime
+ *
+ * @param system The URL of the SCDL for tuscany system composite
+ * @param extensions The URLs of the SCDLs for tuscany extension composites
+ * @param application The URL of the SCDL for the application composite
+ * @param compositePath The path of the application composite relative to the application URL
+ * @throws Exception
+ */
+ protected abstract void startup(URL system, URL[] extensions, URL application, String compositePath)
+ throws Exception;
+
+ /**
+ * Shutdown the runtime
+ *
+ * @throws Exception
+ */
+ protected abstract void shutdown() throws Exception;
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyException.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyException.java
new file mode 100644
index 0000000000..ad649d716f
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyException.java
@@ -0,0 +1,164 @@
+/*
+ * 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.api;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Collections;
+import java.io.PrintWriter;
+
+/**
+ * The root checked exception for the Tuscany runtime.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class TuscanyException extends Exception {
+ private static final long serialVersionUID = -7847121698339635268L;
+ private List<String> contextStack;
+ private final String identifier;
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @see Exception
+ */
+ public TuscanyException() {
+ super();
+ this.identifier = null;
+ }
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @see Exception
+ */
+ public TuscanyException(String message) {
+ super(message);
+ this.identifier = null;
+ }
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @param identifier additional error information referred to in the error message
+ * @see Exception
+ */
+ public TuscanyException(String message, String identifier) {
+ super(message);
+ this.identifier = identifier;
+ }
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @param cause passed to Exception
+ * @see Exception
+ */
+ public TuscanyException(String message, Throwable cause) {
+ super(message, cause);
+ this.identifier = null;
+ }
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @param identifier additional error information referred to in the error message
+ * @param cause passed to Exception
+ * @see Exception
+ */
+ public TuscanyException(String message, String identifier, Throwable cause) {
+ super(message, cause);
+ this.identifier = identifier;
+ }
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param cause passed to Exception
+ * @see Exception
+ */
+ public TuscanyException(Throwable cause) {
+ super(cause);
+ this.identifier = null;
+ }
+
+ /**
+ * Returns a collection of names representing the context call stack where the error occured. The top of the stack
+ * is the first element in the collection.
+ *
+ * @return a collection of names representing the context call stack
+ */
+ public List<String> returnContextNames() {
+ if (contextStack == null) {
+ contextStack = new ArrayList<String>();
+ }
+ return Collections.unmodifiableList(contextStack);
+ }
+
+ /**
+ * Pushes a context name where an error occured onto the call stack.
+ *
+ * @param name the name of a context to push on the stack
+ */
+ public void addContextName(String name) {
+ if (contextStack == null) {
+ contextStack = new ArrayList<String>();
+ }
+ contextStack.add(name);
+ }
+
+ /**
+ * Returns a string representing additional error information referred to in the error message.
+ *
+ * @return additional error information
+ */
+ public String getIdentifier() {
+ return identifier;
+ }
+
+ public PrintWriter appendBaseMessage(PrintWriter writer) {
+ if (identifier == null && contextStack == null) {
+ if (super.getMessage() == null) {
+ return writer;
+ }
+ return writer.append(super.getMessage());
+ }
+ if (super.getMessage() != null) {
+ writer.append(super.getMessage());
+ }
+ if (identifier != null) {
+ writer.append(" [").append(identifier).append(']');
+ }
+ return writer;
+ }
+
+ public PrintWriter appendContextStack(PrintWriter writer) {
+ if (contextStack != null) {
+ writer.append("\nContext stack trace: ");
+ for (int i = contextStack.size() - 1; i >= 0; i--) {
+ writer.append('[').append(contextStack.get(i)).append(']');
+ }
+ }
+ return writer;
+ }
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyRuntimeException.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyRuntimeException.java
new file mode 100644
index 0000000000..fc92c57fa0
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/TuscanyRuntimeException.java
@@ -0,0 +1,168 @@
+/*
+ * 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.api;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Collections;
+import java.io.PrintWriter;
+
+/**
+ * The root unchecked exception for the Tuscany runtime.
+ *
+ * @version $Rev$ $Date$
+ */
+
+public abstract class TuscanyRuntimeException extends RuntimeException {
+ private static final long serialVersionUID = -759677431966121786L;
+ private List<String> contextStack;
+ private final String identifier;
+
+ /**
+ * Override constructor from RuntimeException.
+ *
+ * @see RuntimeException
+ */
+ public TuscanyRuntimeException() {
+ super();
+ this.identifier = null;
+ }
+
+ /**
+ * Override constructor from RuntimeException.
+ *
+ * @param message passed to RuntimeException
+ * @see RuntimeException
+ */
+ public TuscanyRuntimeException(String message) {
+ super(message);
+ this.identifier = null;
+ }
+
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @param identifier additional error information referred to in the error message
+ * @see Exception
+ */
+ protected TuscanyRuntimeException(String message, String identifier) {
+ super(message);
+ this.identifier = identifier;
+ }
+
+ /**
+ * Override constructor from RuntimeException.
+ *
+ * @param message passed to RuntimeException
+ * @param cause passed to RuntimeException
+ * @see RuntimeException
+ */
+ public TuscanyRuntimeException(String message, Throwable cause) {
+ super(message, cause);
+ this.identifier = null;
+ }
+
+
+ /**
+ * Override constructor from Exception.
+ *
+ * @param message passed to Exception
+ * @param identifier additional error information referred to in the error message
+ * @param cause passed to RuntimeException
+ * @see Exception
+ */
+ protected TuscanyRuntimeException(String message, String identifier, Throwable cause) {
+ super(message, cause);
+ this.identifier = identifier;
+ }
+
+ /**
+ * Override constructor from RuntimeException.
+ *
+ * @param cause passed to RuntimeException
+ * @see RuntimeException
+ */
+ public TuscanyRuntimeException(Throwable cause) {
+ super(cause);
+ this.identifier = null;
+ }
+
+ /**
+ * Returns a collection of names representing the context call stack where the error occured. The top of the stack
+ * is the first element in the collection.
+ *
+ * @return a collection of names representing the context call stack
+ */
+ public List<String> returnContextNames() {
+ if (contextStack == null) {
+ contextStack = new ArrayList<String>();
+ }
+ return Collections.unmodifiableList(contextStack);
+ }
+
+ /**
+ * Pushes a context name where an error occured onto the call stack.
+ *
+ * @param name the name of a context to push on the stack
+ */
+ public void addContextName(String name) {
+ if (contextStack == null) {
+ contextStack = new ArrayList<String>();
+ }
+ contextStack.add(name);
+ }
+
+ /**
+ * Returns a string representing additional error information referred to in the error message.
+ *
+ * @return additional error information
+ */
+ public String getIdentifier() {
+ return identifier;
+ }
+
+ public PrintWriter appendBaseMessage(PrintWriter writer) {
+ if (identifier == null && contextStack == null) {
+ if (super.getMessage() == null) {
+ return writer;
+ }
+ return writer.append(super.getMessage());
+ }
+ if (super.getMessage() != null) {
+ writer.append(super.getMessage());
+ }
+ if (identifier != null) {
+ writer.append(" [").append(identifier).append(']');
+ }
+ return writer;
+ }
+
+ public PrintWriter appendContextStack(PrintWriter writer) {
+ if (contextStack != null) {
+ writer.append("Context stack trace: ");
+ for (int i = contextStack.size() - 1; i >= 0; i--) {
+ writer.append('[').append(contextStack.get(i)).append(']');
+ }
+ }
+ return writer;
+ }
+
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/DataType.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/DataType.java
new file mode 100644
index 0000000000..33e67a60ae
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/DataType.java
@@ -0,0 +1,45 @@
+/*
+ * 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.api.annotation;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.PARAMETER;
+import static java.lang.annotation.ElementType.TYPE;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/**
+ * Used to demarcate expected data types for an operation
+ *
+ * @version $Rev$ $Date$
+ */
+@Target({TYPE, METHOD, FIELD, PARAMETER})
+@Retention(RUNTIME)
+public @interface DataType {
+
+ /**
+ * Returns the unique name of the data binding
+ * @return the unique name of the data binding
+ */
+ String name();
+
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/IDLMapping.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/IDLMapping.java
new file mode 100644
index 0000000000..e8c88b6176
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/IDLMapping.java
@@ -0,0 +1,51 @@
+/*
+ * 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.api.annotation;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.TYPE;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation that can be applied to interfaces or methods to provide IDL mapping metadata
+ *
+ * @version $Rev$ $Date$
+ */
+@Target({METHOD, TYPE})
+@Retention(RUNTIME)
+public @interface IDLMapping {
+
+ /**
+ * The name of the databinding for the wrapper
+ */
+ String dataBinding() default "";
+
+ /**
+ * To indicate if the java interface/method is generated from a WSDL using wrapper style.
+ *
+ * @see javax.xml.ws.RequestWrapper
+ * @see javax.xml.ws.RequestWrapper
+ *
+ * @return
+ */
+ boolean wrapperStyle() default true;
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/LogLevel.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/LogLevel.java
new file mode 100644
index 0000000000..83c5df26d9
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/LogLevel.java
@@ -0,0 +1,40 @@
+/*
+ * 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.api.annotation;
+
+import static java.lang.annotation.ElementType.METHOD;
+import java.lang.annotation.Retention;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation that can be applied to methods in a monitoring interface to indicate to logging frameworks the severity of
+ * the event.
+ *
+ * @version $Rev$ $Date$
+ */
+@Target({METHOD})
+@Retention(RUNTIME)
+public @interface LogLevel {
+
+ /**
+ * The log level as specified by {@link java.util.logging.Level}.
+ */
+ @SuppressWarnings({"JavaDoc"}) String value();
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Monitor.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Monitor.java
new file mode 100644
index 0000000000..dea9489e5b
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Monitor.java
@@ -0,0 +1,34 @@
+/*
+ * 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.api.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * A system annotation to inject a monitor
+ *
+ * @version $Rev$ $Date$
+ */
+@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Monitor {
+}
diff --git a/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Resource.java b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Resource.java
new file mode 100644
index 0000000000..a7158ab6b8
--- /dev/null
+++ b/branches/sca-java-integration/sca/kernel/api/src/main/java/org/apache/tuscany/api/annotation/Resource.java
@@ -0,0 +1,49 @@
+/*
+ * 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.api.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation used to indicate a resource should be provided to an implementation by the runtime.
+ *
+ * @version $Rev$ $Date$
+ */
+@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Resource {
+
+ /**
+ * Denotes the name of the resource declared by the implementation.
+ */
+ String name() default "";
+
+ /**
+ * Denotes if the resource is optional
+ */
+ boolean optional() default false;
+
+ /**
+ * Denotes the default name of the resource provided by the runtime environment.
+ */
+ String mappedName() default "";
+}