3 files changed, 63 insertions, 4 deletions

diff --git a/cpp/src/IceGrid/DescriptorBuilder.cpp b/cpp/src/IceGrid/DescriptorBuilder.cpp
index 44be7f678ef..c10abbe9acb 100644
--- a/cpp/src/IceGrid/DescriptorBuilder.cpp
+++ b/cpp/src/IceGrid/DescriptorBuilder.cpp
@@ -495,6 +495,12 @@ TemplateDescriptorBuilder::TemplateDescriptorBuilder(ApplicationDescriptorBuilde
 void
 TemplateDescriptorBuilder::addParameter(const XmlAttributesHelper& attrs)
 {
+    if(find(_descriptor.parameters.begin(), _descriptor.parameters.end(), attrs("name")) !=
+       _descriptor.parameters.end())
+    {
+	throw "duplicate parameter `" + attrs("name") + "'"; 
+    }
+
     _descriptor.parameters.push_back(attrs("name"));
     if(attrs.contains("default"))
     {
diff --git a/cpp/src/IceGrid/DescriptorHelper.cpp b/cpp/src/IceGrid/DescriptorHelper.cpp
index 031d9b15a71..e897cd56d74 100644
--- a/cpp/src/IceGrid/DescriptorHelper.cpp
+++ b/cpp/src/IceGrid/DescriptorHelper.cpp
@@ -302,7 +302,19 @@ Resolver::Resolver(const ApplicationDescriptor& app, const Ice::CommunicatorPtr&
 	}
 	if(!t->second.descriptor)
 	{
-	    exception("invalid server template: server definition is empty");
+	    exception("invalid server template `" + t->first + "': server definition is empty");
+	}
+
+	Ice::StringSeq params = t->second.parameters;
+	sort(params.begin(), params.end());
+	Ice::StringSeq wdups = params;
+	Ice::StringSeq dups;
+	set_difference(wdups.begin(), wdups.end(), params.begin(), unique(params.begin(), params.end()), 
+		       back_inserter(dups));
+	if(!dups.empty())
+	{
+	    dups.erase(unique(dups.begin(), dups.end()), dups.end());
+	    exception("invalid server template `" + t->first + "': duplicate parameters " + toString(dups));
 	}
     }
     for(t = _application->serviceTemplates.begin(); t != _application->serviceTemplates.end(); ++t)
@@ -313,7 +325,18 @@ Resolver::Resolver(const ApplicationDescriptor& app, const Ice::CommunicatorPtr&
 	}
 	if(!t->second.descriptor)
 	{
-	    exception("invalid service template: service definition is empty");
+	    exception("invalid service template `" + t->first + "': service definition is empty");
+	}
+	Ice::StringSeq params = t->second.parameters;
+	sort(params.begin(), params.end());
+	Ice::StringSeq wdups = params;
+	Ice::StringSeq dups;
+	set_difference(wdups.begin(), wdups.end(), params.begin(), unique(params.begin(), params.end()), 
+		       back_inserter(dups));
+	if(!dups.empty())
+	{
+	    dups.erase(unique(dups.begin(), dups.end()), dups.end());
+	    exception("invalid server template `" + t->first + "': duplicate parameters " + toString(dups));
 	}
     }
 }
diff --git a/cpp/test/IceGrid/deployer/AllTests.cpp b/cpp/test/IceGrid/deployer/AllTests.cpp
index a33d10487fa..bbefc798469 100644
--- a/cpp/test/IceGrid/deployer/AllTests.cpp
+++ b/cpp/test/IceGrid/deployer/AllTests.cpp
@@ -92,8 +92,7 @@ typedef IceUtil::Handle<SessionKeepAliveThread> SessionKeepAliveThreadPtr;
 void
 allTests(const Ice::CommunicatorPtr& comm)
 {
-    RegistryPrx registry = IceGrid::RegistryPrx::checkedCast(
-	comm->stringToProxy("IceGrid/Registry"));
+    RegistryPrx registry = IceGrid::RegistryPrx::checkedCast(comm->stringToProxy("IceGrid/Registry"));
     test(registry);
     AdminSessionPrx session = registry->createAdminSession("foo", "bar");
 
@@ -349,6 +348,37 @@ allTests(const Ice::CommunicatorPtr& comm)
 
     cout << "ok" << endl;
 
+    cout << "testing validation... " << flush;
+    TemplateDescriptor templ;
+    templ.parameters.push_back("name");
+    templ.parameters.push_back("nam3");
+    templ.parameters.push_back("nam2");
+    templ.parameters.push_back("nam3");
+    templ.descriptor = new ServerDescriptor();
+    ServerDescriptorPtr server = ServerDescriptorPtr::dynamicCast(templ.descriptor);
+    server->id = "test";
+    server->exe = "${test.dir}/server";
+    ApplicationDescriptor desc;
+    desc.name = "App";
+    desc.serverTemplates["ServerTemplate"] = templ;
+    try
+    {
+	session->startUpdate();
+	admin->addApplication(desc);
+	session->finishUpdate();
+	test(false);
+    }
+    catch(const DeploymentException& ex)
+    {
+ 	test(ex.reason.find("duplicate parameters") != string::npos);
+    }
+    catch(const Ice::Exception& ex)
+    {
+	cerr << ex << endl;
+	test(false);
+    }
+    cout << "ok" << endl;
+
     keepAlive->destroy();
     keepAlive->getThreadControl().join();
     keepAlive = 0;