[8780cbec] | 1 | package edu.stanford.rt.credential; |
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| 2 | /** |
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| 3 | * @author Ninghui Li, Sandra Qiu<br> |
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| 4 | * |
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| 5 | * Implementation of <code>Role</code> object in RTML. |
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| 6 | * A role consists of 2 parts: a principal and a role term. |
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| 7 | */ |
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| 8 | public class Role implements PrincipalExpression |
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| 9 | { |
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| 10 | private Principal principal; // required element. |
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| 11 | private RoleTerm roleTerm; // required element. |
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| 12 | /** |
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| 13 | * Constructor for Role. |
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| 14 | */ |
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| 15 | public Role(Principal principal, RoleTerm roleTerm) |
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| 16 | { |
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| 17 | this.principal = principal; |
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| 18 | this.roleTerm = roleTerm; |
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| 19 | } |
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| 20 | /* (non-Javadoc) |
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| 21 | * @see java.lang.Object#hashCode() |
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| 22 | */ |
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| 23 | public int hashCode() |
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| 24 | { |
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| 25 | return getPrincipal().hashCode() * 2 + getName().hashCode(); |
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| 26 | } |
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| 27 | /** |
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| 28 | * Two roles are equal if both their principals are equal and |
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| 29 | * the role names are equal. |
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| 30 | * |
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| 31 | */ |
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| 32 | public boolean equals(Object o) |
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| 33 | { |
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| 34 | return (o instanceof Role) |
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| 35 | && getPrincipal().equals(((Role) o).getPrincipal()) |
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| 36 | && getName().equals(((Role) o).getName()); |
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| 37 | } |
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| 38 | /** |
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| 39 | * Returns the principal. |
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| 40 | * @return Principal |
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| 41 | */ |
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| 42 | public Principal getPrincipal() |
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| 43 | { |
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| 44 | return principal; |
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| 45 | } |
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| 46 | /** |
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| 47 | * Returns the roleTerm. |
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| 48 | * @return RoleTerm |
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| 49 | */ |
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| 50 | public RoleTerm getRoleTerm() |
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| 51 | { |
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| 52 | return roleTerm; |
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| 53 | } |
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| 54 | /** |
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| 55 | * Method getRoleDeclaration. |
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| 56 | * @return RoleDeclaration |
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| 57 | * The corresponding role declaration. |
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| 58 | */ |
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| 59 | public RoleDeclaration getRoleDeclaration() |
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| 60 | { |
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| 61 | return roleTerm.getRoleDeclaration(); |
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| 62 | } |
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| 63 | /** |
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| 64 | * Method getName. |
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| 65 | * @return String |
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| 66 | * The role name. |
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| 67 | */ |
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| 68 | public String getName() |
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| 69 | { |
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| 70 | return roleTerm.getRoleDeclaration().getName(); |
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| 71 | } |
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| 72 | /* (non-Javadoc) |
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| 73 | * @see edu.stanford.rt.credential.PrincipalExpression#toString(String) |
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| 74 | */ |
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| 75 | public String toString(String indent) |
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| 76 | { |
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| 77 | String thisIndent = indent + " "; |
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| 78 | |
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| 79 | StringBuffer sb = new StringBuffer(); |
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| 80 | sb.append(thisIndent).append("Role: \n"); |
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| 81 | if (principal != null) |
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| 82 | sb.append(principal.toString(thisIndent + " ")).append( |
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| 83 | "\n"); |
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| 84 | sb.append(roleTerm.toString(thisIndent + " ")).append("\n"); |
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| 85 | return sb.toString(); |
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| 86 | } |
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| 87 | } |
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