From efa5e425f9c7334b9eedbcdfb1928ed0b396ec97 Mon Sep 17 00:00:00 2001
From: Jonathan Robie <jonathan@apache.org>
Date: Mon, 1 Nov 2010 14:18:07 +0000
Subject: Changed Variant::fromString() to Variant::parse(). Also changed
 implementation.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1029673 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/include/qpid/types/Variant.h         |  6 ++++-
 cpp/src/qpid/messaging/AddressParser.cpp |  3 +--
 cpp/src/qpid/types/Variant.cpp           | 46 +++++++++-----------------------
 3 files changed, 19 insertions(+), 36 deletions(-)

(limited to 'cpp')

diff --git a/cpp/include/qpid/types/Variant.h b/cpp/include/qpid/types/Variant.h
index 2b692f9bdf..9ae672b7c2 100644
--- a/cpp/include/qpid/types/Variant.h
+++ b/cpp/include/qpid/types/Variant.h
@@ -113,7 +113,11 @@ class Variant
     QPID_TYPES_EXTERN Variant& operator=(const Variant&);
     QPID_TYPES_EXTERN Variant& operator=(const Uuid&);
 
-    QPID_TYPES_EXTERN Variant& fromString(const std::string&);
+    /**
+     * Parses the argument and assigns itself the appropriate
+     * value. Recognises integers, doubles and booleans.
+     */
+    QPID_TYPES_EXTERN Variant& parse(const std::string&);
 
     QPID_TYPES_EXTERN bool asBool() const;
     QPID_TYPES_EXTERN uint8_t asUint8() const;
diff --git a/cpp/src/qpid/messaging/AddressParser.cpp b/cpp/src/qpid/messaging/AddressParser.cpp
index d088b94f32..4c8f35fbc5 100644
--- a/cpp/src/qpid/messaging/AddressParser.cpp
+++ b/cpp/src/qpid/messaging/AddressParser.cpp
@@ -201,9 +201,8 @@ bool AddressParser::readSimpleValue(Variant& value)
 {
     std::string s;
     if (readWord(s)) {
-        value.fromString(s);        
+        value.parse(s);        
         return true;
-
     } else {
         return false;
     }
diff --git a/cpp/src/qpid/types/Variant.cpp b/cpp/src/qpid/types/Variant.cpp
index ea4f5ffbbf..5d8878bdac 100644
--- a/cpp/src/qpid/types/Variant.cpp
+++ b/cpp/src/qpid/types/Variant.cpp
@@ -767,39 +767,19 @@ Variant& Variant::operator=(const Variant& v)
     return *this;
 }
 
-
-template <class T>
-bool from_string(T& t, const std::string& s)
-{
-    char c; // Make sure there are no extra characters
-    
-    std::istringstream iss(s);
-    return !(iss >> t).fail() && (iss>>c).fail();
-}
-
-Variant& Variant::fromString(const std::string& s)
-{
-    double d;    
-    int i;
-
-    if (from_string<int>(i, s))  {
-        return operator=(i);        
-    }    
-    else if (from_string<double>(d, s)) {            
-        return operator=(d);
-    }    
-    else {
-        std::string upper(boost::to_upper_copy(s));
-        if (upper == "TRUE") {
-            return operator=(true);
-        }    
-        else if (upper == "FALSE") {
-            return operator=(false);
-        }    
-        else {               
-            return operator=(s);            
-        }        
-    }    
+Variant& Variant::parse(const std::string& s)
+{
+    operator=(s);
+    try {
+        return operator=(asInt64());
+    } catch (const InvalidConversion&) {}
+    try {
+        return operator=(asDouble());
+    } catch (const InvalidConversion&) {}
+    try {
+        return operator=(asBool());
+    } catch (const InvalidConversion&) {}
+    return *this;
 }
 
 
-- 
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