diff options
Diffstat (limited to '')
5 files changed, 195 insertions, 0 deletions
diff --git a/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java new file mode 100644 index 0000000000..0aa922afa0 --- /dev/null +++ b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java @@ -0,0 +1,33 @@ +/*
+ * 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.event;
+
+/**
+ * The base interface for events that are propagated in the runtime
+ *
+ * @version $$Rev: 539355 $$ $$Date: 2007-05-18 03:05:14 -0700 (Fri, 18 May 2007) $$
+ */
+public interface Event {
+
+ /**
+ * Returns the source of the event
+ */
+ Object getSource();
+
+}
diff --git a/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java new file mode 100644 index 0000000000..00f6961235 --- /dev/null +++ b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java @@ -0,0 +1,35 @@ +/*
+ * 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.event;
+
+/**
+ * Evaluates whether a {@link RuntimeEventListener} is applicable to a given runtime event
+ *
+ * @version $$Rev: 539355 $$ $$Date: 2007-05-18 03:05:14 -0700 (Fri, 18 May 2007) $$
+ */
+public interface EventFilter {
+
+ /**
+ * Performs the actual evaluation on an event
+ * @param event Returns true if the event matches implemented criteria
+ * @return Match result
+ */
+ boolean match(Event event);
+
+}
diff --git a/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java new file mode 100644 index 0000000000..4a204efdd1 --- /dev/null +++ b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java @@ -0,0 +1,55 @@ +/*
+ * 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.event;
+
+/**
+ * Publishes events in the runtime by accepting {@link Event} objects and
+ * forwarding them to all registered {@link RuntimeEventListener} objects.
+ *
+ * @version $$Rev: 639280 $$ $$Date: 2008-03-20 06:10:11 -0700 (Thu, 20 Mar 2008) $$
+ */
+public interface EventPublisher {
+
+ /**
+ * Publish an event to all registered listeners
+ * @param object The event to publish
+ */
+ void publish(Event object);
+
+ /**
+ * Registers a listener to receive notifications for the context
+ * @param listener The listener to add
+ */
+ void addListener(RuntimeEventListener listener);
+
+ /**
+ * Registers a listener to receive notifications for the context
+ * @param filter The filter that will be applied before the lister is called
+ * @param listener The lister to add
+ */
+ void addListener(EventFilter filter, RuntimeEventListener listener);
+
+
+ /**
+ * Removes a previously registered listener
+ * @param listener The listener to remove
+ */
+ void removeListener(RuntimeEventListener listener);
+
+}
diff --git a/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java new file mode 100644 index 0000000000..e540ef683e --- /dev/null +++ b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java @@ -0,0 +1,35 @@ +/*
+ * 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.event;
+
+import java.util.EventListener;
+
+/**
+ * Listeners observe events fired in the SCA runtime.
+ *
+ * @version $Rev: 539355 $ $Date: 2007-05-18 03:05:14 -0700 (Fri, 18 May 2007) $
+ */
+public interface RuntimeEventListener extends EventListener {
+
+ /**
+ * Accepts and event and acts on it
+ * @param event The event to act on
+ */
+ void onEvent(Event event);
+}
diff --git a/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java new file mode 100644 index 0000000000..177dcfbb77 --- /dev/null +++ b/branches/sca-android/tuscany-core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java @@ -0,0 +1,37 @@ +/*
+ * 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.event;
+
+/**
+ * An event filter that always returns a true condition
+ *
+ * @version $$Rev: 539355 $$ $$Date: 2007-05-18 03:05:14 -0700 (Fri, 18 May 2007) $$
+ */
+public class TrueFilter implements EventFilter {
+
+ /**
+ * Performs the actual evaluation on an event. Always returns true
+ * in this case
+ * @param event The incoming event which is ignored
+ * @return true
+ */
+ public boolean match(Event event) {
+ return true;
+ }
+}
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