diff options
author | Matt Windsor <mattwindsor@btinternet.com> | 2011-03-21 21:54:31 +0000 |
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committer | Matt Windsor <mattwindsor@btinternet.com> | 2011-03-21 21:54:31 +0000 |
commit | df7d7981b56a4560c95ea7e9b194080e93398ecf (patch) | |
tree | b3ae4f02d23ae1f7f4951c776ee8d91b0047dd6f /src/uk/org/ury/protocol/ProtocolUtils.java | |
parent | 2d073129857a42ab4195cd433c8be152e357033f (diff) |
GREAT PACKAGE RESHUFFLE: Everything is now organised into frontend, backend and common (to frontend and backend) packages. Things may have been broken. Doc refresh.
Diffstat (limited to 'src/uk/org/ury/protocol/ProtocolUtils.java')
-rw-r--r-- | src/uk/org/ury/protocol/ProtocolUtils.java | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/src/uk/org/ury/protocol/ProtocolUtils.java b/src/uk/org/ury/protocol/ProtocolUtils.java deleted file mode 100644 index b2d3ed9..0000000 --- a/src/uk/org/ury/protocol/ProtocolUtils.java +++ /dev/null @@ -1,85 +0,0 @@ -/** - * - */ -package uk.org.ury.protocol; - -import java.util.Map; - -import org.json.simple.JSONObject; -import org.json.simple.JSONValue; - -import uk.org.ury.protocol.exceptions.DecodeFailureException; -import uk.org.ury.protocol.exceptions.InvalidMessageException; - -/** - * Utilities for converting between strings encoded in the response protocol and - * collections of items, as well as validating and unpicking protocol messages. - * - * @author Matt Windsor - * - */ - -public class ProtocolUtils { - /** - * Encode a key-value map into a protocol string. - * - * The map can contain strings, lists and other maps. Other types may be - * accepted by the underlying encoding engine, but the above types are the - * only ones explicitly accepted. - * - * @param items - * The key-value map of items, which should contain strings, - * lists and maps. The keys of any map should be protocol - * directives. - * - * @return A string containing the encoded representation of the map. - */ - public static String encode(Map<String, Object> items) { - return JSONValue.toJSONString(items); - } - - /** - * Decode a protocol string into a key-value map. - * - * @param string - * The string to decode. - * - * @return A key-value map mapping directives to strings, lists and maps. - * - * @throws DecodeFailureException - * if the decoding engine returns something other than a map. - */ - public static Map<?, ?> decode(String string) throws DecodeFailureException { - Object result = JSONValue.parse(string); - - if (result instanceof JSONObject) - return (JSONObject) result; - else - throw new DecodeFailureException("Result not a map."); - } - - /** - * Check if a response is flagged as having OK status. - * - * @param response - * The response message, as a key-value map (eg in decoded - * format). - * - * @return true if the response is flagged with OK status, false if not (eg - * ERROR status). - * - * @throws InvalidMessageException - * if the response is invalid (eg the status is missing). - */ - public static boolean responseIsOK(Map<?, ?> response) - throws InvalidMessageException { - if (response.containsKey(Directive.STATUS.toString()) == false) - throw new InvalidMessageException("No status line in response."); - - if ((response.get(Directive.STATUS.toString()) instanceof String) == false) - throw new InvalidMessageException("Status is not a string."); - - return (((String) response.get(Directive.STATUS.toString())) - .equals(Status.OK.toString())); - } -} |