Added goal to stop services

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_hadoop_compat_changes@469 123451ca-8445-de46-9d55-352943316053
diff --git a/hyracks-examples/text-example/textapp/pom.xml b/hyracks-examples/text-example/textapp/pom.xml
index b4b81ac..fdf5bc7 100644
--- a/hyracks-examples/text-example/textapp/pom.xml
+++ b/hyracks-examples/text-example/textapp/pom.xml
@@ -96,6 +96,13 @@
               <harFile>${project.build.directory}/textapp-${project.version}-app-assembly.zip</harFile>
             </configuration>
           </execution>
+          <execution>
+            <id>stop-services</id>
+            <phase>post-integration-test</phase>
+            <goals>
+              <goal>stop-services</goal>
+            </goals>
+          </execution>
         </executions>
       </plugin>
       <plugin>
@@ -145,4 +152,4 @@
   		<scope>test</scope>
   	</dependency>
   </dependencies>
-</project>
\ No newline at end of file
+</project>
diff --git a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
index d13ea29..5808909 100644
--- a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
+++ b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
@@ -38,11 +38,7 @@
         }
         String args = cmdLineBuffer.toString();
         final Process proc = launch(new File(hyracksServerHome, makeScriptName(HYRACKS_CC_SCRIPT)), args);
-        Runtime.getRuntime().addShutdownHook(new Thread() {
-            public void run() {
-                proc.destroy();
-            }
-        });
+        HyracksServiceRegistry.INSTANCE.addServiceProcess(proc);
         try {
             Thread.sleep(2000);
         } catch (InterruptedException e) {
diff --git a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
index df598fb..2f1a268 100644
--- a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
+++ b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
@@ -59,11 +59,7 @@
         }
         String args = cmdLineBuffer.toString();
         final Process proc = launch(new File(hyracksServerHome, makeScriptName(HYRACKS_NC_SCRIPT)), args);
-        Runtime.getRuntime().addShutdownHook(new Thread() {
-            public void run() {
-                proc.destroy();
-            }
-        });
+        HyracksServiceRegistry.INSTANCE.addServiceProcess(proc);
         try {
             Thread.sleep(2000);
         } catch (InterruptedException e) {
diff --git a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java
new file mode 100644
index 0000000..6ea5a64
--- /dev/null
+++ b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed 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 from
+ * 
+ *     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 edu.uci.ics.hyracks.maven.plugin;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class HyracksServiceRegistry {
+    public static HyracksServiceRegistry INSTANCE = new HyracksServiceRegistry();
+
+    private final List<Process> serviceProcesses;
+
+    private HyracksServiceRegistry() {
+        serviceProcesses = new ArrayList<Process>();
+        Runtime.getRuntime().addShutdownHook(new Thread() {
+            @Override
+            public void run() {
+                destroyAll();
+            }
+        });
+    }
+
+    public synchronized void addServiceProcess(Process process) {
+        serviceProcesses.add(process);
+    }
+
+    public synchronized void destroyAll() {
+        for (Process p : serviceProcesses) {
+            try {
+                p.destroy();
+            } catch (Exception e) {
+            }
+        }
+        serviceProcesses.clear();
+    }
+}
\ No newline at end of file
diff --git a/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java
new file mode 100644
index 0000000..eaf40fc
--- /dev/null
+++ b/hyracks-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed 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 from
+ * 
+ *     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 edu.uci.ics.hyracks.maven.plugin;
+
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+
+/**
+ * @goal stop-services
+ */
+public class HyracksStopServicesMojo extends AbstractHyracksMojo {
+    @Override
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        getLog().info("Stopping Hyracks Services");
+        HyracksServiceRegistry.INSTANCE.destroyAll();
+    }
+}
\ No newline at end of file