Added ability to fetch single messages from history

shanness · Feb 11, 2017 · 911537a · 911537a
1 parent c59a60e
commit 911537a
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diff --git a/sources/src/main/java/com/ullink/slack/simpleslackapi/ChannelHistoryModule.java b/sources/src/main/java/com/ullink/slack/simpleslackapi/ChannelHistoryModule.java
@@ -14,6 +14,8 @@ public interface ChannelHistoryModule {
 
     List<SlackMessagePosted> fetchHistoryOfChannel(String channelName, LocalDate day, int numberOfMessages);
 
+    SlackMessagePosted fetchSingleMessage(String channelId, String messageId);
+
     List<SlackMessagePosted> fetchUpdatingHistoryOfChannel(String channelId);
 
     List<SlackMessagePosted> fetchUpdatingHistoryOfChannel(String channelId, LocalDate day);

diff --git a/sources/src/main/java/com/ullink/slack/simpleslackapi/impl/ChannelHistoryModuleImpl.java b/sources/src/main/java/com/ullink/slack/simpleslackapi/impl/ChannelHistoryModuleImpl.java
@@ -78,6 +78,18 @@ public List<SlackMessagePosted> fetchHistoryOfChannel(String channelId, LocalDat
         }
     }
 
+    @Override
+    public SlackMessagePosted fetchSingleMessage(String channelId, String messageId) {
+        Map<String, String> params = new HashMap<>();
+        params.put("channel", channelId);
+        params.put("latest", messageId);
+        params.put("inclusive", String.valueOf(true));
+        params.put("count", String.valueOf(1));
+        List<SlackMessagePosted> messages = fetchHistoryOfChannel(params, FETCH_CHANNEL_HISTORY_COMMAND);
+        if ( messages.size() == 1 ) return messages.get(0);
+        return null;
+    }
+
     private List<SlackMessagePosted> fetchHistoryOfChannel(Map<String, String> params, String command) {
         SlackMessageHandle<GenericSlackReply> handle = session.postGenericSlackCommand(params, command);
         GenericSlackReply replyEv = handle.getReply();