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/*
* ============LICENSE_START==========================================
* org.onap.music
* ===================================================================
* Copyright (c) 2018 IBM.
* ===================================================================
* 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.
*
* ============LICENSE_END=============================================
* ====================================================================
*/
package org.onap.music.util;
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";
}
public 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 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 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.nonKeyRelatedPut(queryObject, "eventual");
}
public 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);
}
public 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);
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") == 2);
}
}
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