| 1 | package be.nikiroo.jvcard.remote; |
| 2 | |
| 3 | public class Command { |
| 4 | public enum Verb { |
| 5 | /** VERSION of the protocol */ |
| 6 | VERSION, |
| 7 | /** TIME of the remote server in milliseconds since the Unix epoch */ |
| 8 | TIME, |
| 9 | /** STOP the communication (client stops) */ |
| 10 | STOP, |
| 11 | /** |
| 12 | * LIST all the contacts on the remote server that contain the search |
| 13 | * term, or all contacts if no search term given |
| 14 | */ |
| 15 | LIST, |
| 16 | /** HELP about the protocol for interactive access */ |
| 17 | HELP, |
| 18 | /** GET a remote contact */ |
| 19 | GET, |
| 20 | /** PUT a new contact to the remote server or update an existing one */ |
| 21 | PUT, |
| 22 | /** POST a new contact to the remote server */ |
| 23 | POST, |
| 24 | /** DELETE an existing contact from the remote server */ |
| 25 | DELETE, |
| 26 | } |
| 27 | |
| 28 | private Verb verb; |
| 29 | private int version; |
| 30 | private String param; |
| 31 | |
| 32 | /** |
| 33 | * Create a new, empty {@link Command} with the given {@link Verb} and |
| 34 | * version. |
| 35 | * |
| 36 | * @param verb |
| 37 | * the {@link Verb} |
| 38 | * @param version |
| 39 | * the version |
| 40 | */ |
| 41 | public Command(Verb verb, int version) { |
| 42 | this(verb, null, version); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Create a new, empty {@link Command} with the given {@link Verb} and |
| 47 | * version. |
| 48 | * |
| 49 | * @param verb |
| 50 | * the {@link Verb} |
| 51 | * @param version |
| 52 | * the version |
| 53 | */ |
| 54 | public Command(Verb verb, String param, int version) { |
| 55 | this.verb = verb; |
| 56 | this.version = version; |
| 57 | this.param = param; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Read a command line (starting with a {@link Verb}) and process its |
| 62 | * content here in a more readable format. |
| 63 | * |
| 64 | * @param input |
| 65 | * the command line |
| 66 | * @param version |
| 67 | * the version (which can be overrided by a {@link Verb#VERSION} |
| 68 | * command) |
| 69 | */ |
| 70 | public Command(String input, int version) { |
| 71 | this.version = version; |
| 72 | |
| 73 | if (input != null) { |
| 74 | String v = input; |
| 75 | int indexSp = input.indexOf(" "); |
| 76 | if (indexSp >= 0) { |
| 77 | v = input.substring(0, indexSp); |
| 78 | } |
| 79 | |
| 80 | for (Verb verb : Verb.values()) { |
| 81 | if (v.equals(verb.name())) { |
| 82 | this.verb = verb; |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | if (verb != null) { |
| 87 | String param = null; |
| 88 | if (indexSp >= 0) |
| 89 | param = input.substring(indexSp + 1); |
| 90 | |
| 91 | this.param = param; |
| 92 | |
| 93 | if (verb == Verb.VERSION) { |
| 94 | try { |
| 95 | version = Integer.parseInt(param); |
| 96 | } catch (NumberFormatException e) { |
| 97 | e.printStackTrace(); |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Return the version |
| 106 | * |
| 107 | * @return the version |
| 108 | */ |
| 109 | public int getVersion() { |
| 110 | return version; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Return the {@link Verb} |
| 115 | * |
| 116 | * @return the {@link Verb} |
| 117 | */ |
| 118 | public Verb getVerb() { |
| 119 | return verb; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Return the parameter of this {@link Command} if any. |
| 124 | * |
| 125 | * @return the parameter or NULL |
| 126 | */ |
| 127 | public String getParam() { |
| 128 | return param; |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public String toString() { |
| 133 | if (verb == null) |
| 134 | return "[null command]"; |
| 135 | |
| 136 | switch (verb) { |
| 137 | case VERSION: |
| 138 | return verb.name() + " " + version; |
| 139 | default: |
| 140 | return verb.name() + (param == null ? "" : " " + param); |
| 141 | } |
| 142 | } |
| 143 | } |