authz-cass/src/main/java/com/att/dao/aaf/cass/DelegateDAO.java

   1 /*******************************************************************************\r
   2  * ============LICENSE_START====================================================\r
   3  * * org.onap.aaf\r
   4  * * ===========================================================================\r
   5  * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
   6  * * ===========================================================================\r
   7  * * Licensed under the Apache License, Version 2.0 (the "License");\r
   8  * * you may not use this file except in compliance with the License.\r
   9  * * You may obtain a copy of the License at\r
  10  * * \r
  11  *  *      http://www.apache.org/licenses/LICENSE-2.0\r
  12  * * \r
  13  *  * Unless required by applicable law or agreed to in writing, software\r
  14  * * distributed under the License is distributed on an "AS IS" BASIS,\r
  15  * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  16  * * See the License for the specific language governing permissions and\r
  17  * * limitations under the License.\r
  18  * * ============LICENSE_END====================================================\r
  19  * *\r
  20  * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
  21  * *\r
  22  ******************************************************************************/\r
  23 package com.att.dao.aaf.cass;\r
  24 \r
  25 import java.io.ByteArrayOutputStream;\r
  26 import java.io.DataInputStream;\r
  27 import java.io.DataOutputStream;\r
  28 import java.io.IOException;\r
  29 import java.nio.ByteBuffer;\r
  30 import java.util.Date;\r
  31 import java.util.List;\r
  32 \r
  33 import com.att.authz.env.AuthzTrans;\r
  34 import com.att.authz.layer.Result;\r
  35 import com.att.dao.AbsCassDAO;\r
  36 import com.att.dao.Bytification;\r
  37 import com.att.dao.CassDAOImpl;\r
  38 import com.att.dao.Loader;\r
  39 import com.att.dao.Streamer;\r
  40 import com.datastax.driver.core.Cluster;\r
  41 import com.datastax.driver.core.Row;\r
  42 \r
  43 public class DelegateDAO extends CassDAOImpl<AuthzTrans, DelegateDAO.Data> {\r
  44 \r
  45         public static final String TABLE = "delegate";\r
  46         private PSInfo psByDelegate;\r
  47         \r
  48         public DelegateDAO(AuthzTrans trans, Cluster cluster, String keyspace) {\r
  49                 super(trans, DelegateDAO.class.getSimpleName(),cluster,keyspace,Data.class,TABLE, readConsistency(trans,TABLE), writeConsistency(trans,TABLE));\r
  50                 init(trans);\r
  51         }\r
  52 \r
  53         public DelegateDAO(AuthzTrans trans, AbsCassDAO<AuthzTrans,?> aDao) {\r
  54                 super(trans, DelegateDAO.class.getSimpleName(),aDao,Data.class,TABLE, readConsistency(trans,TABLE), writeConsistency(trans,TABLE));\r
  55                 init(trans);\r
  56         }\r
  57         \r
  58         private static final int KEYLIMIT = 1;\r
  59         public static class Data implements Bytification {\r
  60                 public String user;\r
  61                 public String delegate;\r
  62                 public Date expires;\r
  63 \r
  64                 @Override\r
  65                 public ByteBuffer bytify() throws IOException {\r
  66                         ByteArrayOutputStream baos = new ByteArrayOutputStream();\r
  67                         DelegateLoader.dflt.marshal(this,new DataOutputStream(baos));\r
  68                         return ByteBuffer.wrap(baos.toByteArray());\r
  69                 }\r
  70                 \r
  71                 @Override\r
  72                 public void reconstitute(ByteBuffer bb) throws IOException {\r
  73                         DelegateLoader.dflt.unmarshal(this, toDIS(bb));\r
  74                 }\r
  75         }\r
  76         \r
  77         private static class DelegateLoader extends Loader<Data> implements Streamer<Data>{\r
  78                 public static final int MAGIC=0xD823ACF2;\r
  79         public static final int VERSION=1;\r
  80         public static final int BUFF_SIZE=48;\r
  81 \r
  82                 public static final DelegateLoader dflt = new DelegateLoader(KEYLIMIT);\r
  83 \r
  84                 public DelegateLoader(int keylimit) {\r
  85                         super(keylimit);\r
  86                 }\r
  87                 \r
  88                 @Override\r
  89                 public Data load(Data data, Row row) {\r
  90                         data.user = row.getString(0);\r
  91                         data.delegate = row.getString(1);\r
  92                         data.expires = row.getDate(2);\r
  93                         return data;\r
  94                 }\r
  95 \r
  96                 @Override\r
  97                 protected void key(Data data, int idx, Object[] obj) {\r
  98                         obj[idx]=data.user;\r
  99                 }\r
 100 \r
 101                 @Override\r
 102                 protected void body(Data data, int _idx, Object[] obj) {\r
 103                         int idx = _idx;\r
 104 \r
 105                         obj[idx]=data.delegate;\r
 106                         obj[++idx]=data.expires;\r
 107                 }\r
 108 \r
 109                 @Override\r
 110                 public void marshal(Data data, DataOutputStream os) throws IOException {\r
 111                         writeHeader(os,MAGIC,VERSION);\r
 112                         writeString(os, data.user);\r
 113                         writeString(os, data.delegate);\r
 114                         os.writeLong(data.expires.getTime());\r
 115                 }\r
 116 \r
 117                 @Override\r
 118                 public void unmarshal(Data data, DataInputStream is) throws IOException {\r
 119                         /*int version = */readHeader(is,MAGIC,VERSION);\r
 120                         // If Version Changes between Production runs, you'll need to do a switch Statement, and adequately read in fields\r
 121                         byte[] buff = new byte[BUFF_SIZE];\r
 122                         data.user = readString(is, buff);\r
 123                         data.delegate = readString(is,buff);\r
 124                         data.expires = new Date(is.readLong());\r
 125                 }\r
 126         }       \r
 127         \r
 128         private void init(AuthzTrans trans) {\r
 129                 String[] helpers = setCRUD(trans, TABLE, Data.class, DelegateLoader.dflt);\r
 130                 psByDelegate = new PSInfo(trans, SELECT_SP + helpers[FIELD_COMMAS] + " FROM " + TABLE +\r
 131                                 " WHERE delegate = ?", new DelegateLoader(1),readConsistency);\r
 132 \r
 133         }\r
 134 \r
 135         public Result<List<DelegateDAO.Data>> readByDelegate(AuthzTrans trans, String delegate) {\r
 136                 return psByDelegate.read(trans, R_TEXT, new Object[]{delegate});\r
 137         }\r
 138 }\r