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package org.onap.music.unittests;
import java.util.HashMap;
import java.util.Map;
import org.onap.music.datastore.PreparedQueryObject;
import org.onap.music.exceptions.MusicLockingException;
import org.onap.music.exceptions.MusicQueryException;
import org.onap.music.exceptions.MusicServiceException;
import org.onap.music.main.MusicCore;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Row;
/**
*
*/
public class TestVotingApp
{
String keyspaceName;
String tableName;
public TestVotingApp() throws MusicServiceException {
keyspaceName = "VotingAppForMusic"+System.currentTimeMillis();
tableName = "votecount";
}
private void initialize() throws MusicServiceException {
createVotingKeyspace();
System.out.println("Created keyspaces");
createVotingTable();
System.out.println("Created tables");
createEntryForCandidate("Popeye");
createEntryForCandidate("Judy");
createEntryForCandidate("Flash");
createEntryForCandidate("Mickey");
System.out.println("Created candidates");
}
private void createVotingKeyspace() throws MusicServiceException {
Map<String,Object> replicationInfo = new HashMap<String, Object>();
replicationInfo.put("'class'", "'SimpleStrategy'");
replicationInfo.put("'replication_factor'", 1);
PreparedQueryObject queryObject = new PreparedQueryObject();
queryObject.appendQueryString(
"CREATE KEYSPACE " + keyspaceName + " WITH REPLICATION = " + replicationInfo.toString().replaceAll("=", ":"));
try {
MusicCore.nonKeyRelatedPut(queryObject, "eventual");
} catch (MusicServiceException e) {
throw(e);
}
}
private void createVotingTable() throws MusicServiceException {
PreparedQueryObject queryObject = new PreparedQueryObject();
queryObject.appendQueryString(
"CREATE TABLE " + keyspaceName + "." + tableName + " (name text PRIMARY KEY, count int);");
try {
MusicCore.createTable(keyspaceName, tableName, queryObject, "eventual");
} catch (MusicServiceException e) {
throw (e);
}
}
private void createEntryForCandidate(String candidateName) throws MusicServiceException {
PreparedQueryObject queryObject = new PreparedQueryObject();
queryObject.appendQueryString(
"INSERT INTO " + keyspaceName + "." + tableName + " (name, count) "
+ "VALUES ('"+candidateName+"', 0);");
MusicCore.eventualPut(queryObject);
}
private void updateVoteCount(String candidateName, int numVotes) throws MusicLockingException, MusicQueryException, MusicServiceException {
PreparedQueryObject queryObject = new PreparedQueryObject();
queryObject.appendQueryString(
"UPDATE " + keyspaceName + "." + tableName + " SET count=" +numVotes + " where name='" + candidateName + "';");
MusicCore.atomicPut(keyspaceName, tableName, candidateName, queryObject, null);
}
private HashMap<String, Integer> readAllVotes() throws MusicServiceException {
PreparedQueryObject queryObject = new PreparedQueryObject();
queryObject.appendQueryString("SELECT * FROM " + keyspaceName + "." + tableName);
ResultSet rs = MusicCore.get(queryObject);
HashMap<String, Integer> voteCount = new HashMap<String, Integer>();
for(Row candidate : rs.all()) {
voteCount.put(candidate.getString("name"), candidate.getInt("count"));
}
return voteCount;
}
public static void main( String[] args ) throws Exception {
TestVotingApp tva = new TestVotingApp();
tva.initialize();
tva.updateVoteCount("Popeye",5);
tva.updateVoteCount("Judy",9);
tva.updateVoteCount("Mickey",8);
tva.updateVoteCount("Flash",1);
tva.updateVoteCount("Flash",2);
tva.updateVoteCount("Flash",3);
HashMap<String, Integer> voteCount = tva.readAllVotes();
System.out.println(voteCount);
assert(voteCount.get("Popeye") == 5);
assert(voteCount.get("Judy") == 9);
assert(voteCount.get("Mickey") == 8);
assert(voteCount.get("Flash") == 3);
System.exit(0);
}
}
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