setrolestatement


1   package com.daffodilwoods.daffodildb.server.sql99.dcl.sqlsessionstatement;
2   
3   import com.daffodilwoods.daffodildb.server.datadictionarysystem.*;
4   import com.daffodilwoods.daffodildb.server.serversystem.*;
5   import com.daffodilwoods.daffodildb.server.sql99.common.*;
6   import com.daffodilwoods.daffodildb.server.sql99.token.*;
7   import com.daffodilwoods.database.resource.*;
8   
9   public class setrolestatement implements com.daffodilwoods.daffodildb.utils.parser.StatementExecuter, SQLsessionstatement {
10     public rolespecification _rolespecification0;
11     public SNONRESERVEDWORD136444255  _SNONRESERVEDWORD1364442551;
12     public SRESERVEDWORD1206543922 _SRESERVEDWORD12065439222;
13  
14     /********** Algorithm ************
15        check the role passed to set is declared or not
16        if not been declared, throw an Exception unknown role name
17        else set the role to the session
18      */
19  
20     public Object   run(Object   object) throws com.daffodilwoods.database.resource.DException {
21        _ServerSession serverSession = null;
22        try {
23           serverSession = ( (_StatementExecutionContext) object).getServerSession();
24        } catch (ClassCastException   ex) {
25           serverSession = (_ServerSession) object;
26        }
27        String   roleName = _rolespecification0.toString().trim(); //(String)_rolespecification0.run(object);
28        if (roleName.equalsIgnoreCase(SqlKeywords.NONE)) {
29           serverSession.setRole(null);
30           return null;
31        }
32        _DataDictionary dd = serverSession.getDataDictionary();
33        if (!dd.isValidRole(roleName)) {
34           throw new DException("DSE874", new Object  [] {roleName});
35        }
36        if (!dd.isAuthorizedUserForRole(serverSession.getUserSession().getUserName(), roleName)) {
37           throw new DException("DSE8131", new Object  [] {roleName, serverSession.getUserSession().getUserName()});
38        }
39        serverSession.setRole(roleName);
40        return roleName;
41     }
42  
43     public Object   clone() throws CloneNotSupportedException   {
44        return this;
45     }
46  
47     public String   toString() {
48        StringBuffer   sb = new StringBuffer  ();
49        sb.append(" ");
50        sb.append(_SRESERVEDWORD12065439222);
51        sb.append(" ");
52        sb.append(_SNONRESERVEDWORD1364442551);
53        sb.append(" ");
54        sb.append(_rolespecification0);
55        return sb.toString();
56     }
57  }
58
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