Add voting app example

Change-Id: Ife1e6ea10cf74e3495ed72bc14a77179665ca327
Issue-ID: MUSIC-82
Signed-off-by: Tschaen, Brendan (bt054f) <bt054f@att.com>

9 files changed, 959 insertions, 0 deletions

diff --git a/examples/VotingApp/README.md b/examples/VotingApp/README.md
new file mode 100644
index 00000000..bcd37b9b
--- /dev/null
+++ b/examples/VotingApp/README.md
@@ -0,0 +1,31 @@
+
+The voting app for MUSIC  illustrates the features of MUSIC as a
+multi-site state management
+service. It is a program that
+maintains state in MUSIC in the form of a vote-count table that has two columns, the candidateName
+and his voteCount. To the external client that is using the voting app to update votes, the
+votingApp provides a simple function to update the
+votecount of the candidate in an exclusive manner. This is possible because of the locking service
+in MUSIC. Since each candidate is a key in MUSIC, the votingapp simply acquires the geo-distributed
+lock and only then upates the count. This guarantees correctness even when clients access different
+end-points across data centers. Further since state is replicated correctly across data-centers,
+even when one of the data centers fail, functioning can continue simply by using the MUSIC end point
+in the other data center. 
+
+The main function in the VotingApp.java is emulating clients from different data centers by randomly
+chosing MUSIC end points. By updating vote counts
+randomly using different MUSIC end points and still receiving the correct total count when doing a
+read, the main function indicates the multi-site capability of MUSIC. 
+
+
+To run the application, make sure you have onboarded the application using music's admin api.
+A curl call using the default values would be:
+curl -X POST \
+  http://localhost:8080/MUSIC/rest/v2/admin/onboardAppWithMusic \
+  -H 'Content-Type: application/json' \
+  -d '{
+"appname"  : "votingapp",
+"userId"   : "abc123d",
+"password" : "password",
+"isAAF"    : false
+}'
diff --git a/examples/VotingApp/pom.xml b/examples/VotingApp/pom.xml
new file mode 100644
index 00000000..87cac6c0
--- /dev/null
+++ b/examples/VotingApp/pom.xml
@@ -0,0 +1,92 @@
+<!--
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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.
+
+ */
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.att.reserarch.VoteAppForMUSIC</groupId>
+  <artifactId>VoteAppForMUSIC</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  
+    
+    	<repositories>
+		<repository>
+			<id>maven2-repository.java.net</id>
+			<name>Java.net Repository for Maven</name>
+			<url>http://download.java.net/maven/2/</url>
+			<layout>default</layout>
+		</repository>
+	</repositories>
+
+	<dependencies>
+
+		<dependency>
+			<groupId>com.sun.jersey</groupId>
+			<artifactId>jersey-server</artifactId>
+			<version>1.9</version>
+		</dependency>
+		<dependency>
+    <groupId>com.sun.jersey</groupId>
+    <artifactId>jersey-json</artifactId>
+    <version>1.18.1</version>
+</dependency>
+<dependency>
+   <groupId>com.owlike</groupId>
+   <artifactId>genson</artifactId>
+   <version>0.99</version>
+</dependency>
+		<dependency>
+			<groupId>com.sun.jersey</groupId>
+			<artifactId>jersey-client</artifactId>
+			<version>1.9</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.sun.jersey</groupId>
+			<artifactId>jersey-json</artifactId>
+			<version>1.9</version>
+		</dependency>
+		
+		<dependency>
+            <groupId>com.sun.jersey</groupId>
+            <artifactId>jersey-bundle</artifactId>
+            <version>1.18</version>
+        </dependency>	
+        
+        		<dependency>
+	<groupId>com.googlecode.json-simple</groupId>
+	<artifactId>json-simple</artifactId>
+	<version>1.1</version>
+  </dependency>
+        	<dependency>
+			<groupId>com.datastax.cassandra</groupId>
+			<artifactId>cassandra-driver-core</artifactId>
+			<version>3.0.0</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.zookeeper</groupId>
+			<artifactId>zookeeper</artifactId>
+			<version>3.4.6</version>
+		</dependency>
+        
+	</dependencies>
+  
+</project>
\ No newline at end of file
diff --git a/examples/VotingApp/src/main/java/main/JsonDelete.java b/examples/VotingApp/src/main/java/main/JsonDelete.java
new file mode 100644
index 00000000..9b75f875
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/JsonDelete.java
@@ -0,0 +1,61 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+
+import java.util.ArrayList;
+import java.util.Map;
+
+public class JsonDelete {
+	
+    private ArrayList<String> columns = null;
+    private Map<String,String> consistencyInfo;
+
+	public Map<String, String> getConsistencyInfo() {
+		return consistencyInfo;
+	}
+
+	public void setConsistencyInfo(Map<String, String> consistencyInfo) {
+		this.consistencyInfo = consistencyInfo;
+	}
+
+    public ArrayList<String> getColumns() {
+		return columns;
+	}
+	public void setColumns(ArrayList<String> columns) {
+		this.columns = columns;
+	}
+	String ttl, timestamp;
+
+	public String getTtl() {
+		return ttl;
+	}
+	public void setTtl(String ttl) {
+		this.ttl = ttl;
+	}
+	public String getTimestamp() {
+		return timestamp;
+	}
+	public void setTimestamp(String timestamp) {
+		this.timestamp = timestamp;
+	}
+}
diff --git a/examples/VotingApp/src/main/java/main/JsonInsert.java b/examples/VotingApp/src/main/java/main/JsonInsert.java
new file mode 100644
index 00000000..a2099c16
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/JsonInsert.java
@@ -0,0 +1,67 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+
+import java.util.Map;
+
+import org.codehaus.jackson.annotate.JsonIgnoreProperties;
+public class JsonInsert {
+	
+    private Map<String,Object> values;
+    String ttl, timestamp;
+	private Map<String,Object> row_specification;
+    private Map<String,String> consistencyInfo;
+
+	public Map<String, String> getConsistencyInfo() {
+		return consistencyInfo;
+	}
+
+	public void setConsistencyInfo(Map<String, String> consistencyInfo) {
+		this.consistencyInfo = consistencyInfo;
+	}
+
+	public String getTtl() {
+		return ttl;
+	}
+	public void setTtl(String ttl) {
+		this.ttl = ttl;
+	}
+	public String getTimestamp() {
+		return timestamp;
+	}
+	public void setTimestamp(String timestamp) {
+		this.timestamp = timestamp;
+	}
+	public Map<String, Object> getValues() {
+		return values;
+	}
+	public void setValues(Map<String, Object> values) {
+		this.values = values;
+	}
+    public Map<String, Object> getRow_specification() {
+		return row_specification;
+	}
+	public void setRow_specification(Map<String, Object> row_specification) {
+		this.row_specification = row_specification;
+	}
+}
diff --git a/examples/VotingApp/src/main/java/main/JsonKeySpace.java b/examples/VotingApp/src/main/java/main/JsonKeySpace.java
new file mode 100644
index 00000000..ff7b6c67
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/JsonKeySpace.java
@@ -0,0 +1,58 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+
+import java.util.Map;
+
+
+public class JsonKeySpace {
+    private Map<String,Object> replicationInfo;
+	private String durabilityOfWrites;
+    private Map<String,String> consistencyInfo;
+
+	public Map<String, String> getConsistencyInfo() {
+		return consistencyInfo;
+	}
+
+	public void setConsistencyInfo(Map<String, String> consistencyInfo) {
+		this.consistencyInfo = consistencyInfo;
+	}
+
+	public Map<String, Object> getReplicationInfo() {
+		return replicationInfo;
+	}
+	
+	public void setReplicationInfo(Map<String, Object> replicationInfo) {
+		this.replicationInfo = replicationInfo;
+	}
+
+	public String getDurabilityOfWrites() {
+		return durabilityOfWrites;
+	}
+	public void setDurabilityOfWrites(String durabilityOfWrites) {
+		this.durabilityOfWrites = durabilityOfWrites;
+	}
+		
+	
+
+}
diff --git a/examples/VotingApp/src/main/java/main/JsonTable.java b/examples/VotingApp/src/main/java/main/JsonTable.java
new file mode 100644
index 00000000..66171af2
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/JsonTable.java
@@ -0,0 +1,55 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+import java.util.Map;
+
+public class JsonTable {
+    private Map<String,String> fields;
+	private Map<String, Object> properties; 
+    private Map<String,String> consistencyInfo;
+
+
+	public Map<String, String> getConsistencyInfo() {
+		return consistencyInfo;
+	}
+
+	public void setConsistencyInfo(Map<String, String> consistencyInfo) {
+		this.consistencyInfo = consistencyInfo;
+	}
+
+    public Map<String, Object> getProperties() {
+		return properties;
+	}
+
+	public void setProperties(Map<String, Object> properties) {
+		this.properties = properties;
+	}
+    
+	public Map<String, String> getFields() {
+		return fields;
+	}
+
+	public void setFields(Map<String, String> fields) {
+		this.fields = fields;
+	}
+}
diff --git a/examples/VotingApp/src/main/java/main/MusicConnector.java b/examples/VotingApp/src/main/java/main/MusicConnector.java
new file mode 100644
index 00000000..d6ed20ba
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/MusicConnector.java
@@ -0,0 +1,76 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Random;
+
+public class MusicConnector {
+	
+	//change this to point to relevant cluster
+	public String[] musicNodes;
+
+	public MusicConnector(String[] musicNodes){
+		this.musicNodes = musicNodes; 
+	}
+	
+	private String getMusicNodeIp(){
+		Random r = new Random();
+		int index = r.nextInt(musicNodes.length);	
+		return musicNodes[index];
+	}
+	
+	public String getMusicNodeURL(){
+			String musicurl = "http://"+getMusicNodeIp()+":8080/MUSIC/rest/v2";
+			return musicurl;
+	}
+	
+	public boolean isHostUp(String serverAddress) { 
+		Boolean isUp = false;
+	    try {
+			InetAddress inet = InetAddress.getByName(serverAddress);
+			isUp = inet.isReachable(1000);	
+		} catch (UnknownHostException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	    return isUp;
+	}
+	
+	/*	
+	private static String getMusicNodeIp(){
+		
+		//return "54.224.168.13";
+		return bigSiteMusicNode;
+		String serverAddress;
+		serverAddress = agaveMusicNode;
+		while(isHostUp(serverAddress) != true)
+			serverAddress = toggle(serverAddress);
+		return serverAddress;
+	}*/
+}
diff --git a/examples/VotingApp/src/main/java/main/Util.java b/examples/VotingApp/src/main/java/main/Util.java
new file mode 100644
index 00000000..aefa9a36
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/Util.java
@@ -0,0 +1,6 @@
+package main;
+
+public class Util {
+	public static final String version="1.0.0";
+
+}
diff --git a/examples/VotingApp/src/main/java/main/VotingApp.java b/examples/VotingApp/src/main/java/main/VotingApp.java
new file mode 100644
index 00000000..e58c324d
--- /dev/null
+++ b/examples/VotingApp/src/main/java/main/VotingApp.java
@@ -0,0 +1,513 @@
+/*
+ * 
+This licence applies to all files in this repository unless otherwise specifically
+stated inside of the file. 
+
+ ---------------------------------------------------------------------------
+   Copyright (c) 2016 AT&T Intellectual Property
+
+   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 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 main;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.ws.rs.core.MediaType;
+
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+import com.sun.jersey.api.client.WebResource.Builder;
+import com.sun.jersey.api.client.config.ClientConfig;
+import com.sun.jersey.api.client.config.DefaultClientConfig;
+import com.sun.jersey.api.json.JSONConfiguration;
+
+public class VotingApp {
+	String keyspaceName;
+	ArrayList<String> lockNames;
+	MusicConnector musicHandle;
+	private final String version="1.0.0";
+	
+	//UPDATE your onboarding information here
+	String namespace = "votingapp";
+	String userId = "abc123d";
+	String password = "password";
+	
+	public VotingApp(String[] musicIps){
+		lockNames = new ArrayList<String>();	
+		musicHandle = new MusicConnector(musicIps);
+		bootStrap();
+	}
+	
+	/**
+	 * Adds MUSIC's authentication headers into the webresource
+	 * @param webResource
+	 */
+	private Builder addMusicHeaders(WebResource webResource) {
+		Builder builder = webResource.accept(MediaType.APPLICATION_JSON).type(MediaType.APPLICATION_JSON);
+		if (!namespace.equals("")) {
+			builder.header("ns", namespace);
+		}
+		if (!userId.equals("")) {
+			builder.header("userId", userId);
+		}
+		if (!password.equals("")) {
+			builder.header("password", password);
+		}
+		
+		return builder;
+	}
+	
+	public void createVotingKeyspace(){
+		keyspaceName = "VotingAppForMusic";
+		System.out.println("Voting app version "+ version+" .....");
+		Map<String,Object> replicationInfo = new HashMap<String, Object>();
+		replicationInfo.put("class", "SimpleStrategy");
+		replicationInfo.put("replication_factor", 1);
+		String durabilityOfWrites="false";
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "eventual");
+		JsonKeySpace jsonKp = new JsonKeySpace();
+		jsonKp.setConsistencyInfo(consistencyInfo);
+		jsonKp.setDurabilityOfWrites(durabilityOfWrites);
+		jsonKp.setReplicationInfo(replicationInfo);
+
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+
+		WebResource webResource = client
+				.resource(musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json")
+				.type("application/json").post(ClientResponse.class, jsonKp);
+		if (response.getStatus() < 200 || (response.getStatus() > 299 && response.getStatus()!=400)) { //supress keyspace already exists
+			Map<String, String> map = response.getEntity(Map.class);
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus() + "- " + map);
+		}
+
+	}
+
+	public void createVotingTable(){
+		Map<String,String> fields = new HashMap<String,String>();
+		fields.put("name", "text");
+		fields.put("count", "varint");
+		fields.put("PRIMARY KEY", "(name)");
+
+
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "eventual");
+
+		JsonTable jtab = new JsonTable();
+		jtab.setFields(fields);
+		jtab.setConsistencyInfo(consistencyInfo);
+
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount";
+		System.out.println("create url:"+url);
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json")
+				.type("application/json").post(ClientResponse.class, jtab);
+
+		System.out.println(response.getEntity(Map.class));
+		if (response.getStatus() < 200 || (response.getStatus() > 299 && response.getStatus()!=400)) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus());
+
+	}
+	private void checkMusicVersion(){
+		Client client = Client.create();
+		System.out.println(musicHandle.getMusicNodeURL()+"/version");
+		
+
+//		System.setProperty("sun.net.http.allowRestrictedHeaders", "true");
+		WebResource webResource = client
+				.resource(musicHandle.getMusicNodeURL()+"/version");
+		
+
+		ClientResponse response = addMusicHeaders(webResource)
+				.accept(MediaType.APPLICATION_JSON).header("Connection", "close").get(ClientResponse.class);
+		
+		if (response.getStatus() != 200) {
+			throw new RuntimeException("Failed : HTTP error code : "
+					+ response.getStatus());
+		}
+
+		String output = response.getEntity(Map.class).toString();
+
+		System.out.println(output);
+
+	}
+
+	private  void createEntryForCandidate(String candidateName){
+		Map<String,Object> values = new HashMap<String,Object>();
+		values.put("name",candidateName );
+		values.put("count",0);
+
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "eventual");
+
+		JsonInsert jIns = new JsonInsert();
+		jIns.setValues(values);
+		jIns.setConsistencyInfo(consistencyInfo);
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount/rows";
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json")
+				.type("application/json").post(ClientResponse.class, jIns);
+
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus()+"url:"+url+" candidate name:"+ candidateName);
+
+
+	}
+
+	private  String createLock(String lockName){
+		Client client = Client.create();
+		String msg = musicHandle.getMusicNodeURL()+"/locks/create/"+lockName;
+		WebResource webResource = client.resource(msg);
+		System.out.println(msg);
+		WebResource.Builder wb = addMusicHeaders(webResource).accept(MediaType.APPLICATION_JSON);
+
+		ClientResponse response = wb.post(ClientResponse.class);
+
+		if (response.getStatus() != 200) {
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus()+"url:"+msg);
+		}
+
+		Map<String,Object> responseMap = response.getEntity(Map.class);
+
+		String lockid = ((Map<String,String>) responseMap.get("lock")).get("lock");
+//		System.out.println("Server response .... \n");
+//		System.out.println(output);
+		return lockid;
+	}
+
+	private  boolean acquireLock(String lockId){
+		Client client = Client.create();
+		String msg = musicHandle.getMusicNodeURL()+"/locks/acquire/"+lockId;
+		System.out.println(msg);
+		WebResource webResource = client.resource(msg);
+
+
+		WebResource.Builder wb = addMusicHeaders(webResource).accept(MediaType.APPLICATION_JSON);
+
+		ClientResponse response = wb.get(ClientResponse.class);
+
+		Map<String, Object> responseMap = response.getEntity(Map.class);
+		
+		if (response.getStatus() != 200) {
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus()+ ":" + responseMap);
+		}
+
+		System.out.println(responseMap);
+		Boolean status = responseMap.get("status").equals("SUCCESS");
+		System.out.println("Server response .... " + status);
+		return status;
+	}
+
+	private  void unlock(String lockId){
+		Client client = Client.create();
+		WebResource webResource = client.resource(musicHandle.getMusicNodeURL()+"/locks/release/"+lockId);
+
+		ClientResponse response = addMusicHeaders(webResource).delete(ClientResponse.class);
+
+
+		if (response.getStatus() < 200 || response.getStatus()>299) {
+			throw new RuntimeException("Failed : HTTP error code : "
+					+ response.getStatus());
+		}
+	}
+
+	private  void updateVoteCountAtomically(String candidateName,int count){
+		/*create lock for the candidate. The music API dictates that
+		 * the lock name must be of the form keyspacename.tableName.primaryKeyName
+		 * */
+		System.out.println("trying to acquire lock!");
+
+		String lockName = keyspaceName+".votecount."+candidateName;
+		lockNames.add(lockName);
+		String lockId = createLock(lockName);
+		while(acquireLock(lockId) != true);
+		
+		System.out.println("acquired lock!");
+		//update candidate entry if you have the lock
+		Map<String,Object> values = new HashMap<String,Object>();
+		values.put("count",count);
+
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "critical");
+		consistencyInfo.put("lockId", lockId);
+
+		JsonInsert jIns = new JsonInsert();
+		jIns.setValues(values);
+		jIns.setConsistencyInfo(consistencyInfo);
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount/rows?name="+candidateName;
+		System.out.println(url);
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json")
+				.type("application/json").put(ClientResponse.class, jIns);
+
+		Map<String,String> map = response.getEntity(Map.class);
+		
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus()+":"+map);
+
+		//release lock now that the operation is done
+		unlock(lockId);
+
+	}
+
+	private  void deleteCandidateEntryEventually(String candidateName){
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "eventual");
+
+		JsonDelete jDel = new JsonDelete();
+		jDel.setConsistencyInfo(consistencyInfo);
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount/rows?name="+candidateName;
+		System.out.println(url);
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json")
+				.type("application/json").delete(ClientResponse.class, jDel);
+
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus()+"url:"+url);
+
+	}
+
+	public  Map<String,Object> readVoteCountForCandidate(String candidateName){
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount/rows?name="+candidateName;
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json").get(ClientResponse.class);
+
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus());
+		
+		Map<String,Object> output = response.getEntity(Map.class);
+		return output;	
+	}
+
+	public  Map<String,Object> readAllVotes(){
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+		String url = musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName+"/tables/votecount/rows";
+		WebResource webResource = client
+				.resource(url);
+
+		ClientResponse response = addMusicHeaders(webResource).accept("application/json").get(ClientResponse.class);
+
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus());
+		
+		Map<String,Object> output = response.getEntity(Map.class);
+		return output;	
+	}
+	
+	
+	/*
+	 * Unable to use this because of the error: 
+	 * Exception in thread "main" com.sun.jersey.api.client.ClientHandlerException: java.net.ProtocolException: 
+	 * HTTP method DELETE doesn't support output. Seems to be a error in the rest java combination according to the interwebs
+	 */
+	private void dropKeySpace(){
+		Map<String,String> consistencyInfo= new HashMap<String, String>();
+		consistencyInfo.put("type", "eventual");
+
+		JsonKeySpace jsonKp = new JsonKeySpace();
+		jsonKp.setConsistencyInfo(consistencyInfo);
+
+		ClientConfig clientConfig = new DefaultClientConfig();
+
+		clientConfig.getFeatures().put(
+				JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+		Client client = Client.create(clientConfig);
+
+		WebResource webResource = client
+				.resource(musicHandle.getMusicNodeURL()+"/keyspaces/"+keyspaceName);
+
+		ClientResponse response = addMusicHeaders(webResource).type("application/json")
+				.delete(ClientResponse.class, jsonKp);
+
+		if (response.getStatus() < 200 || response.getStatus() > 299) 
+			throw new RuntimeException("Failed : HTTP error code : "+ response.getStatus());
+	}
+	
+	private void deleteLock(String lockName){
+		Client client = Client.create();
+		WebResource webResource = client.resource(musicHandle.getMusicNodeURL()+"/locks/delete/"+lockName);
+
+		ClientResponse response = addMusicHeaders(webResource).delete(ClientResponse.class);
+
+
+		if (response.getStatus() <200 || response.getStatus()>299) {
+			throw new RuntimeException("Failed : HTTP error code : "
+					+ response.getStatus());
+		}
+	}
+
+	private void resetMusic(){
+		Client client = Client.create();
+		WebResource webResource = client.resource(musicHandle.getMusicNodeURL()+"/reset");
+
+		ClientResponse response = addMusicHeaders(webResource).delete(ClientResponse.class);
+
+
+		if (response.getStatus() != 204) {
+			throw new RuntimeException("Failed : HTTP error code : "
+					+ response.getStatus());
+		}
+		
+	}
+	public void deleteAllLocks(){
+		for (String lockName : lockNames) {
+			deleteLock(lockName);
+		}
+	}
+	
+	
+	public void bootStrap(){
+		checkMusicVersion();
+		createVotingKeyspace();
+
+
+		createVotingTable();
+		
+
+		//the next few lines just create an entry in the voting table for all these candidates with vote count as 0
+		createEntryForCandidate("Popeye");
+
+		createEntryForCandidate("Judy");
+
+		createEntryForCandidate("Flash");
+
+		createEntryForCandidate("Mickey");
+
+	}
+	
+	public void overAllTests(){
+		//update the count atomically
+		updateVoteCountAtomically("Popeye",5);
+
+		updateVoteCountAtomically("Judy",7);
+		
+		updateVoteCountAtomically("Mickey",8);
+
+		updateVoteCountAtomically("Flash",2);
+
+		
+		//read votecount 		
+		System.out.println(readAllVotes());
+		
+		System.out.println(readVoteCountForCandidate("Popeye"));
+		
+		System.out.println(readVoteCountForCandidate("Flash"));
+
+		deleteCandidateEntryEventually("Mickey");
+
+		System.out.println(readAllVotes());
+
+//		dropKeySpace();
+
+		deleteAllLocks();
+	}
+	
+	public void flipTest(){
+		checkMusicVersion();
+	}
+	
+	public static String executeBashScript(String pathToScript, String arg1, String arg2){
+		try {
+			ProcessBuilder pb = new ProcessBuilder(pathToScript,arg1, arg2);
+			final Process process = pb.start();
+			InputStream is = process.getInputStream();
+			InputStreamReader isr = new InputStreamReader(is);
+			BufferedReader br = new BufferedReader(isr);
+			return br.readLine();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return null;	
+	}
+	
+	public static void main(String[] args) {	
+		long start = System.currentTimeMillis();
+
+		if (args.length==0) {
+			args = new String[]{"localhost"};
+		}
+		for(int i =0; i < 2;++i){
+			VotingApp vHandle = new VotingApp(args);
+			vHandle.overAllTests();
+
+			System.out.println("=====================================");
+			System.out.println("Test no."+i+" completed:");
+		}
+		long diff = 	System.currentTimeMillis() - start;
+		System.out.println(diff);
+	}
+			
+
+}
\ No newline at end of file