From f41401e93a5efab0b01c5513203a1570eae78539 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20Poncabar=C3=A9?= <florianx.poncabare@intel.com>
Date: Mon, 2 May 2016 13:53:37 +0200
Subject: [PATCH] Add listMappings command
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List all the mapping under a given path

Example with the MusicLibrary form the Getting Started wiki :

$ remote-process localhost 5000 listMappings /MusicLibrary/my_library/artists/IronMaiden

/MusicLibrary/my_library/artists/IronMaiden [Directory:/home/fponcabx/pfw/install-examples/libraries, File:ironMaiden, File:ironMaiden]

Signed-off-by: Florian Poncabaré <florianx.poncabare@intel.com>
---
 parameter/Element.cpp      |  9 +++++++++
 parameter/Element.h        |  1 +
 parameter/ParameterMgr.cpp | 33 +++++++++++++++++++++++++++++++++
 parameter/ParameterMgr.h   |  2 ++
 4 files changed, 45 insertions(+)

diff --git a/parameter/Element.cpp b/parameter/Element.cpp
index 831729948..c88577850 100644
--- a/parameter/Element.cpp
+++ b/parameter/Element.cpp
@@ -356,6 +356,15 @@ string CElement::listQualifiedPaths(bool bDive, size_t level) const
     return strResult;
 }
 
+void CElement::getSubpaths(std::vector<string> &results) const
+{
+    results.push_back(getPath());
+
+    for (CElement *pChild : _childArray) {
+        pChild->getSubpaths(results);
+    }
+}
+
 void CElement::listChildrenPaths(string &strChildList) const
 {
     // Get list of children paths
diff --git a/parameter/Element.h b/parameter/Element.h
index b7cdc6d2a..4eab323b2 100644
--- a/parameter/Element.h
+++ b/parameter/Element.h
@@ -72,6 +72,7 @@ class PARAMETER_EXPORT CElement : public IXmlSink, public IXmlSource
     void listChildren(std::string &strChildList) const;
     std::string listQualifiedPaths(bool bDive, size_t level = 0) const;
     void listChildrenPaths(std::string &strChildPathList) const;
+    void getSubpaths(std::vector<std::string> &results) const;
 
     // Hierarchy query
     size_t getNbChildren() const;
diff --git a/parameter/ParameterMgr.cpp b/parameter/ParameterMgr.cpp
index d56277c03..2523c0a1d 100644
--- a/parameter/ParameterMgr.cpp
+++ b/parameter/ParameterMgr.cpp
@@ -269,6 +269,8 @@ const CParameterMgr::SRemoteCommandParserItem CParameterMgr::gastRemoteCommandPa
      "Set value for parameter at given path to configuration"},
     {"showMapping", &CParameterMgr::showMappingCommandProcess, 1, "<elem path>",
      "Show mapping for an element at given path"},
+    {"listMappings", &CParameterMgr::listMappingsCommandProcess, 1, "<elem path>|/",
+     "List mappings under element at given path or root"},
 
     /// Browse
     {"listAssociatedElements", &CParameterMgr::listAssociatedElementsCommandProcess, 0, "",
@@ -1820,6 +1822,37 @@ CParameterMgr::CCommandHandler::CommandStatus CParameterMgr::showMappingCommandP
     return CCommandHandler::ESucceeded;
 }
 
+CParameterMgr::CCommandHandler::CommandStatus CParameterMgr::listMappingsCommandProcess(
+    const IRemoteCommand &remoteCommand, string &strResult)
+{
+    CElementLocator elementLocator(getSystemClass(), false);
+
+    CElement *pLocatedElement = nullptr;
+
+    if (!elementLocator.locate(remoteCommand.getArgument(0), &pLocatedElement, strResult)) {
+        return CCommandHandler::EFailed;
+    }
+
+    if (!pLocatedElement) {
+        // List from root folder
+        pLocatedElement = getSystemClass();
+    }
+
+    vector<string> paths;
+    pLocatedElement->getSubpaths(paths);
+
+    for (string path : paths) {
+        string mapping;
+        if (getParameterMapping(path, mapping)) {
+            strResult += path + " [" + mapping + "]\n";
+        } else {
+            strResult += path + "\n";
+        }
+    }
+
+    return CCommandHandler::ESucceeded;
+}
+
 /// Settings Import/Export
 CParameterMgr::CCommandHandler::CommandStatus CParameterMgr::exportDomainsXMLCommandProcess(
     const IRemoteCommand &remoteCommand, string &strResult)
diff --git a/parameter/ParameterMgr.h b/parameter/ParameterMgr.h
index bc0726dfe..8ef3840b4 100644
--- a/parameter/ParameterMgr.h
+++ b/parameter/ParameterMgr.h
@@ -533,6 +533,8 @@ class CParameterMgr : private CElement
         const IRemoteCommand &remoteCommand, std::string &strResult);
     CCommandHandler::CommandStatus showMappingCommandProcess(const IRemoteCommand &remoteCommand,
                                                              std::string &strResult);
+    CCommandHandler::CommandStatus listMappingsCommandProcess(const IRemoteCommand &remoteCommand,
+                                                              std::string &strResult);
     /// Browse
     CCommandHandler::CommandStatus listAssociatedElementsCommandProcess(
         const IRemoteCommand &remoteCommand, std::string &strResult);