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/*
* ============LICENSE_START==========================================
* org.onap.music
* ===================================================================
* Copyright (c) 2017 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.
*
* ============LICENSE_END=============================================
* ====================================================================
*/
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Map;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import org.apache.cassandra.config.ColumnDefinition;
import org.apache.cassandra.db.Clustering;
import org.apache.cassandra.db.Mutation;
import org.apache.cassandra.db.partitions.Partition;
import org.apache.cassandra.db.rows.Cell;
import org.apache.cassandra.db.rows.Row;
import org.apache.cassandra.db.rows.Unfiltered;
import org.apache.cassandra.db.rows.UnfilteredRowIterator;
import org.apache.cassandra.triggers.ITrigger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
public class MusicTrigger implements ITrigger {
private static final Logger logger = LoggerFactory.getLogger(MusicTrigger.class);
public Collection<Mutation> augment(Partition partition)
{
new Thread(new Runnable() {
public void run() {
makeAsyncCall(partition);
}
}).start();
return Collections.emptyList();
}
private void makeAsyncCall(Partition partition) {
boolean isDelete = false;
if(partition.partitionLevelDeletion().isLive()) {
} else {
// Partition Level Deletion
isDelete = true;
}
logger.info("MusicTrigger isDelete: " + isDelete);
String ksName = partition.metadata().ksName;
String tableName = partition.metadata().cfName;
String pkValue = partition.metadata().getKeyValidator().getString(partition.partitionKey().getKey());
logger.info("MusicTrigger Table: " + tableName);
boolean isInsert = checkQueryType(partition);
org.json.simple.JSONObject obj = new org.json.simple.JSONObject();
String operation = null;
if(isDelete)
operation = "delete";
else if(isInsert)
operation = "insert";
else
operation = "update";
Map<String, Object> changeMap = new HashMap<>();
obj.put("operation", operation);
obj.put("keyspace", ksName);
obj.put("table_name", tableName);
obj.put("full_table", ksName+"."+tableName);
obj.put("primary_key", partition.metadata().getKeyValidator().getString(partition.partitionKey().getKey()));
List<String> updateList = new ArrayList<>();
//obj.put("message_id", partition.metadata().getKeyValidator().getString(partition.partitionKey().getKey()));
if("update".equals(operation)) {
try {
UnfilteredRowIterator it = partition.unfilteredIterator();
while (it.hasNext()) {
Unfiltered un = it.next();
Clustering clt = (Clustering) un.clustering();
Iterator<Cell> cells = partition.getRow(clt).cells().iterator();
Iterator<ColumnDefinition> columns = partition.getRow(clt).columns().iterator();
while(columns.hasNext()){
ColumnDefinition columnDef = columns.next();
Cell cell = cells.next();
String data = null;
if(cell.column().type.toString().equals("org.apache.cassandra.db.marshal.UTF8Type")) {
logger.info(">> type is String");
data = new String(cell.value().array()); // If cell type is text
} else if(cell.column().type.toString().equals("org.apache.cassandra.db.marshal.Int32Type")) {
//ByteBuffer wrapped = ByteBuffer.wrap(cell.value()); // big-endian by default
int num = fromByteArray(cell.value().array());
logger.info(">> type is Integer1 :: "+num);
data = String.valueOf(num);
}
logger.info("Inside triggers loop: "+columnDef.name+" : "+data);
//changeMap.put(ksName+"."+tableName+"."+columnDef.name,data);
updateList.add(ksName+"."+tableName+":"+columnDef.name+":"+data);
changeMap.put("field_value",ksName+"."+tableName+":"+columnDef.name+":"+data);
}
}
} catch (Exception e) {
logger.info("Exception while constructing.. "+e.getMessage());
}
obj.put("updateList", updateList);
} else {
changeMap.put("field_value", ksName+"."+tableName);
}
obj.put("changeValue", changeMap);
logger.info("Sending response: "+obj.toString());
try {
notifyMusic(obj.toString());
logger.info("MUSIC was notified.. "+obj.toString());
} catch(Exception e) {
logger.error("Notification failed..."+e.getMessage());
logger.info("Notification failed..."+e.getMessage());
}
}
private int fromByteArray(byte[] bytes) {
return bytes[0] << 24 | (bytes[1] & 0xFF) << 16 | (bytes[2] & 0xFF) << 8 | (bytes[3] & 0xFF);
}
private boolean checkQueryType(Partition partition) {
UnfilteredRowIterator it = partition.unfilteredIterator();
while (it.hasNext()) {
Unfiltered unfiltered = it.next();
Row row = (Row) unfiltered;
if (isInsert(row)) {
return true;
}
}
return false;
}
private boolean isInsert(Row row) {
return row.primaryKeyLivenessInfo().timestamp() != Long.MIN_VALUE;
}
private void notifyMusic(String request) {
logger.info("notifyMusic...");
Client client = Client.create();
WebResource webResource = client.resource("http://localhost:8080/MUSIC/rest/v2/admin/callbackOps");
JSONObject data = new JSONObject();
data.setData(request);
ClientResponse response = null;
try {
response = webResource.accept("application/json").type("application/json")
.post(ClientResponse.class, data);
} catch (Exception e) {
logger.info("Exception while notifying MUSIC. Retrying..");
try {
response = webResource.accept("application/json").type("application/json")
.post(ClientResponse.class, data);
} catch (Exception e1) {
logger.info("Exception while notifying MUSIC. Stopping retry attempts..");
}
}
if(response.getStatus() != 200){
logger.info("Exception while notifying MUSIC...");
try {
response = webResource.accept("application/json").type("application/json")
.post(ClientResponse.class, data);
} catch (Exception e) {
logger.info("Exception while notifying MUSIC. Retrying..");
try {
response = webResource.accept("application/json").type("application/json")
.post(ClientResponse.class, data);
} catch (Exception e1) {
logger.info("Exception while notifying MUSIC. Stopping retry attempts..");
}
}
}
}
}
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