summaryrefslogtreecommitdiffstats
path: root/musictrigger/src/MusicTrigger.java
blob: d70e41a04530d84ab15867267abaecdd180cdd7b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/*
 * ============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.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)
    {
    	boolean isDelete = false;
    	logger.info("Step 1: "+partition.partitionLevelDeletion().isLive());
    	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;
        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, String> 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()));
        
        //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 = new String(cell.value().array()); // If cell type is text
	                    logger.info("Inside triggers loop: "+columnDef.name+" : "+data);
	                    changeMap.put(ksName+"."+tableName+"."+columnDef.name,data);
	                    changeMap.put("field_value",ksName+"."+tableName+":"+columnDef.name+":"+data);
	                }
	            }
	        } catch (Exception e) {
	
	        }
        } else {
        	changeMap.put("field_value", ksName+"."+tableName);
        }
        
        obj.put("changeValue", changeMap);
        logger.info("Sending response: "+obj.toString());
        try {
            notifyMusic(obj.toString());
        } catch(Exception e) {
            e.printStackTrace();
            logger.error("Notification failed..."+e.getMessage());
        }
        return Collections.emptyList();
    }
    
    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) {
		System.out.println("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 = webResource.accept("application/json").type("application/json")
                .post(ClientResponse.class, data);
		
		if(response.getStatus() != 200){
			System.out.println("Exception...");
        }
		response.getHeaders().put(HttpHeaders.CONTENT_TYPE, Arrays.asList(MediaType.APPLICATION_JSON));
		response.bufferEntity();
		String x = response.getEntity(String.class);
		System.out.println("Response: "+x);
		
	}

	/*public Collection<Mutation> augment(Partition partition) {
		
		String tableName = partition.metadata().cfName;
        System.out.println("Table: " + tableName);

        JSONObject obj = new JSONObject();
        obj.put("message_id", partition.metadata().getKeyValidator().getString(partition.partitionKey().getKey()));

        
	    try {
	        UnfilteredRowIterator it = partition.unfilteredIterator();
	        while (it.hasNext()) {
	            Unfiltered un = it.next();
	            Clustering clt = (Clustering) un.clustering();  
	            Iterator<Cell> cls = partition.getRow(clt).cells().iterator();
                Iterator<ColumnDefinition> columns = partition.getRow(clt).columns().iterator();

	            while(cls.hasNext()){
	                Cell cell = cls.next();
	                String data = new String(cell.value().array()); // If cell type is text
	                System.out.println(cell + " : " +data);
	                
	            }
	            while(columns.hasNext()){
                    ColumnDefinition columnDef = columns.next();
                    Cell cell = cls.next();
                    String data = new String(cell.value().array()); // If cell type is text
                    obj.put(columnDef.toString(), data);
                }
	        }
	    } catch (Exception e) {
	    }
	    
	    System.out.println(obj.toString());

        return Collections.emptyList();
	}*/
	
}