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-rw-r--r--indra/llmessage/llareslistener.cpp75
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+/**
+ * @file llareslistener.cpp
+ * @author Nat Goodspeed
+ * @date 2009-03-18
+ * @brief Implementation for llareslistener.
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * Copyright (c) 2009, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+// Precompiled header
+#include "linden_common.h"
+// associated header
+#include "llareslistener.h"
+// STL headers
+// std headers
+// external library headers
+// other Linden headers
+#include "llares.h"
+#include "llerror.h"
+#include "llevents.h"
+#include "llsdutil.h"
+
+LLAresListener::LLAresListener(const std::string& pumpname, LLAres* llares):
+ LLDispatchListener(pumpname, "op"),
+ mAres(llares)
+{
+ // add() every method we want to be able to invoke via this event API.
+ // Optional third parameter validates expected LLSD request structure.
+ add("rewriteURI", &LLAresListener::rewriteURI,
+ LLSD().insert("uri", LLSD()).insert("reply", LLSD()));
+}
+
+/// This UriRewriteResponder subclass packages returned URIs as an LLSD
+/// array to send back to the requester.
+class UriRewriteResponder: public LLAres::UriRewriteResponder
+{
+public:
+ /**
+ * Specify the request, containing the event pump name on which to send
+ * the reply.
+ */
+ UriRewriteResponder(const LLSD& request):
+ mReqID(request),
+ mPumpName(request["reply"])
+ {}
+
+ /// Called by base class with results. This is called in both the
+ /// success and error cases. On error, the calling logic passes the
+ /// original URI.
+ virtual void rewriteResult(const std::vector<std::string>& uris)
+ {
+ LLSD result;
+ for (std::vector<std::string>::const_iterator ui(uris.begin()), uend(uris.end());
+ ui != uend; ++ui)
+ {
+ result.append(*ui);
+ }
+ // This call knows enough to avoid trying to insert a map key into an
+ // LLSD array. It's there so that if, for any reason, we ever decide
+ // to change the response from array to map, it will Just Start Working.
+ mReqID.stamp(result);
+ LLEventPumps::instance().obtain(mPumpName).post(result);
+ }
+
+private:
+ LLReqID mReqID;
+ const std::string mPumpName;
+};
+
+void LLAresListener::rewriteURI(const LLSD& data)
+{
+ mAres->rewriteURI(data["uri"], new UriRewriteResponder(data));
+}