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From pnol...@apache.org
Subject celix git commit: CELIX-426: Fixes some tests and improves C++ services example
Date Wed, 09 May 2018 16:07:11 GMT
Repository: celix
Updated Branches:
  refs/heads/feature/CELIX-426-cxx-api 7df4d26d9 -> e3339ca42


CELIX-426: Fixes some tests and improves C++ services example


Project: http://git-wip-us.apache.org/repos/asf/celix/repo
Commit: http://git-wip-us.apache.org/repos/asf/celix/commit/e3339ca4
Tree: http://git-wip-us.apache.org/repos/asf/celix/tree/e3339ca4
Diff: http://git-wip-us.apache.org/repos/asf/celix/diff/e3339ca4

Branch: refs/heads/feature/CELIX-426-cxx-api
Commit: e3339ca42d586364e4970ed8cfe53649c5553241
Parents: 7df4d26
Author: Pepijn Noltes <pepijnnoltes@gmail.com>
Authored: Wed May 9 18:06:46 2018 +0200
Committer: Pepijn Noltes <pepijnnoltes@gmail.com>
Committed: Wed May 9 18:06:46 2018 +0200

----------------------------------------------------------------------
 .../src/ConsumerBundleActivator.cc              | 39 ++++++----
 .../src/ProviderBundleActivator.cc              | 38 ++++------
 framework/gtest/src/cxx_BundleContext_tests.cc  | 79 ++++++++++++--------
 framework/include/celix/BundleContext.h         | 53 +++++++++++--
 4 files changed, 130 insertions(+), 79 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/celix/blob/e3339ca4/examples/celix-examples/services_example_cxx/src/ConsumerBundleActivator.cc
----------------------------------------------------------------------
diff --git a/examples/celix-examples/services_example_cxx/src/ConsumerBundleActivator.cc b/examples/celix-examples/services_example_cxx/src/ConsumerBundleActivator.cc
index 5ad00fe..3371cad 100644
--- a/examples/celix-examples/services_example_cxx/src/ConsumerBundleActivator.cc
+++ b/examples/celix-examples/services_example_cxx/src/ConsumerBundleActivator.cc
@@ -19,6 +19,7 @@
 
 #include <iostream>
 #include <thread>
+#include <atomic>
 
 #include "celix/BundleActivator.h"
 
@@ -27,15 +28,21 @@
 namespace {
     class BundleActivator : public celix::IBundleActivator {
     public:
-        BundleActivator(celix::BundleContext &_ctx) : ctx{_ctx} {}
+        BundleActivator(celix::BundleContext &_ctx) : ctx{_ctx} {
+            this->trackerId = ctx.trackServices<example::ICalc>(example::ICalc::NAME,
+                 [this](example::ICalc *, const celix::Properties &, const celix::Bundle&)
{  this->trackCount += 1; },
+                 [this](example::ICalc *, const celix::Properties &, const celix::Bundle&)
{  this->trackCount -= 1; });
+        }
 
         virtual ~BundleActivator() {
-                this->useThread.join();
+            ctx.stopTracker(this->trackerId);
+            this->running = false;
+            this->useThread.join();
         }
 
     protected:
         void use() {
-                while(this->running) {
+                while(running) {
                         int count = 0;
                         double total = 0;
                         ctx.useServices<example::ICalc>(example::ICalc::NAME, [&](example::ICalc
&calc, const celix::Properties &, const celix::Bundle&) {
@@ -43,26 +50,28 @@ namespace {
                                 total += calc.calc(1);
                         });
                         std::cout << "Called calc " << count << " times.
Total is " << total << std::endl;
-                        std::this_thread::sleep_for(std::chrono::seconds(5));
-                }
-        }
 
-        void setRunning(bool r) {
-                std::lock_guard<std::mutex> lock{this->mutex};
-                this->running = r;
-        }
+                        ctx.useService<example::ICalc>(example::ICalc::NAME, [&](example::ICalc
&, const celix::Properties &props, const celix::Bundle &bnd){
+                           long rank = celix::getProperty(props, celix::Constants::SERVICE_RANKING,
-1L);
+                           long svcId = celix::getProperty(props, celix::Constants::SERVICE_ID,
-1L);
+                           long bndId = bnd.getBundleId();
+                           std::cout << "Found highest ranking call with rank " <<
rank << " and service id " << svcId << " from bundle " << bndId <<
std::endl;
+                        });
+
+                        std::cout << "track counter is " << this->trackCount
<< std::endl;
 
-        bool isRunning() {
-                std::lock_guard<std::mutex> lock{this->mutex};
-                return this->running;
+                        std::this_thread::sleep_for(std::chrono::seconds(5));
+                }
         }
 
     private:
         celix::BundleContext &ctx;
+
+        long trackerId{-1};
         std::thread useThread{[this] { this->use(); }};
 
-        std::mutex mutex{}; //protects running
-        bool running{true};
+        std::atomic<bool> running{true};
+        std::atomic<int> trackCount{0};
     };
 }
 

http://git-wip-us.apache.org/repos/asf/celix/blob/e3339ca4/examples/celix-examples/services_example_cxx/src/ProviderBundleActivator.cc
----------------------------------------------------------------------
diff --git a/examples/celix-examples/services_example_cxx/src/ProviderBundleActivator.cc b/examples/celix-examples/services_example_cxx/src/ProviderBundleActivator.cc
index fd8466e..ca8cf8d 100644
--- a/examples/celix-examples/services_example_cxx/src/ProviderBundleActivator.cc
+++ b/examples/celix-examples/services_example_cxx/src/ProviderBundleActivator.cc
@@ -19,7 +19,7 @@
 
 #include <iostream>
 #include <thread>
-#include <mutex>
+#include <atomic>
 #include <vector>
 
 #include "celix/BundleActivator.h"
@@ -44,25 +44,23 @@ namespace {
                 CalcImpl calc{};
                 std::vector<long> svcIds{};
                 bool up = true;
-                while (this->isRunning()) {
+                while (this->running) {
                     if (up) {
                         celix::Properties props{};
-                        props[celix::Constants::SERVICE_RANKING] = "10"; //TODO random
+                        props[celix::Constants::SERVICE_RANKING] = std::to_string(std::rand());
                         long svcId = ctx.registerService(example::ICalc::NAME, &calc,
example::ICalc::VERSION, std::move(props));
                         svcIds.push_back(svcId);
                     } else {
-                        if (svcIds.size() > 0) {
-                            long svcId = svcIds.back();
-                            svcIds.pop_back();
-                            ctx.unregisterService(svcId);
-                        } else {
-                            up = true;
-                        }
+                        long svcId = svcIds.back();
+                        svcIds.pop_back();
+                        ctx.unregisterService(svcId);
                     }
-                    if (svcIds.size() >= 100) {
-                        up = false;
+                    if (up) {
+                        up = svcIds.size() < 100;
+                    } else {
+                        up = svcIds.size() == 0;
                     }
-                    std::this_thread::yield();
+                    std::this_thread::sleep_for(std::chrono::milliseconds(88));
                 }
                 std::cout << "Exiting service register thread, services count is "
<< svcIds.size() << std::endl;
                 std::for_each(svcIds.begin(), svcIds.end(), [&ctx](long id){ctx.unregisterService(id);});
@@ -71,24 +69,14 @@ namespace {
         }
 
         virtual ~BundleActivator() {
-            this->setRunning(false);
+            this->running = false;
             th.join();
         }
 
-        void setRunning(bool r) {
-            std::lock_guard<std::mutex> lock{this->mutex};
-            this->running = r;
-        }
-
-        bool isRunning() {
-            std::lock_guard<std::mutex> lock{this->mutex};
-            return this->running;
-        }
     private:
         std::thread th{};
 
-        std::mutex mutex{}; //protects running
-        bool running{true};
+        std::atomic<bool> running{true};
     };
 }
 

http://git-wip-us.apache.org/repos/asf/celix/blob/e3339ca4/framework/gtest/src/cxx_BundleContext_tests.cc
----------------------------------------------------------------------
diff --git a/framework/gtest/src/cxx_BundleContext_tests.cc b/framework/gtest/src/cxx_BundleContext_tests.cc
index 7687011..a426d66 100644
--- a/framework/gtest/src/cxx_BundleContext_tests.cc
+++ b/framework/gtest/src/cxx_BundleContext_tests.cc
@@ -37,6 +37,23 @@ private:
     std::unique_ptr<celix::Framework> fw_ptr{nullptr};
 };
 
+//Test interface
+class ITestSvc {
+public:
+    static constexpr const char * const NAME = "ITestSvc";
+
+    virtual ~ITestSvc(){};
+    virtual int calc(int input) = 0;
+};
+
+//Test implementation
+class TestImpl : public ITestSvc {
+public:
+    virtual ~TestImpl(){};
+    int calc(int input) override { return input * 42; }
+};
+
+
 TEST_F(BundleContextTest, TestInstallBundle) {
     auto &ctx = this->framework().getFrameworkContext();
 
@@ -70,36 +87,50 @@ TEST_F(BundleContextTest, RegisterCServiceTest) {
     EXPECT_TRUE(svcId2 > 0);
     EXPECT_NE(svcId, svcId2); //new registration new id
     ctx.unregisterService(svcId2);
+
+    //NOTE compile error -> cxxSvc is not POD
+    //TestImpl cxxSvc{};
+    //ctx.registerCService(ITestSvc::NAME, &cxxSvc);
 }
 
-TEST_F(BundleContextTest, UseService) {
-    struct test_svc {
-        int (*calc)(int input);
-    };
+TEST_F(BundleContextTest, RegisterServiceTest) {
+    auto &ctx = this->framework().getFrameworkContext();
+
+    TestImpl svc1{};
 
+    long svcId = ctx.registerService<ITestSvc>(ITestSvc::NAME, &svc1);
+    EXPECT_TRUE(svcId > 0);
+    ctx.unregisterService(svcId);
+
+    long svcId2 = ctx.registerService<ITestSvc>(ITestSvc::NAME, &svc1);
+    EXPECT_TRUE(svcId2 > 0);
+    EXPECT_NE(svcId, svcId2); //new registration new id
+    ctx.unregisterService(svcId2);
+}
+
+TEST_F(BundleContextTest, UseService) {
     auto &ctx = this->framework().getFrameworkContext();
 
-    test_svc svc1{};
-    svc1.calc = [](int input) -> int {
-        return input * 42;
-    };
+    TestImpl svc1{};
 
-    long svcId = ctx.registerCService("test service", &svc1);
+    long svcId = ctx.registerService<ITestSvc>(ITestSvc::NAME, &svc1);
     EXPECT_TRUE(svcId > 0);
 
 
     int result = -1;
-    std::function<void(test_svc &svc, const celix::Properties&, const celix::Bundle&)>
func = [&result](test_svc &svc, const celix::Properties&, const celix::Bundle&)
{
+    std::function<void(ITestSvc &svc, const celix::Properties&, const celix::Bundle&)>
func = [&result](ITestSvc &svc, const celix::Properties&, const celix::Bundle&)
{
         result = svc.calc(1);
     };
-    ctx.useService<test_svc>(svcId, "test service", func);
+    bool called = ctx.useService<ITestSvc>(ITestSvc::NAME, func);
+    EXPECT_TRUE(called);
     EXPECT_EQ(result, 42);
 
-    result = -1;
-    ctx.useService<test_svc>(svcId, "test service", [&result](test_svc &svc,
const celix::Properties&, const celix::Bundle&) {
-        result = svc.calc(2);
-    });
-    EXPECT_EQ(result, 84);
+//    result = -1;
+//    called = ctx.useServiceWithId<ITestSvc>(svcId, ITestSvc::NAME, [&result](ITestSvc
&svc, const celix::Properties&, const celix::Bundle&) {
+//        result = svc.calc(2);
+//    });
+//    EXPECT_TRUE(called);
+//    EXPECT_EQ(result, 84);
 
     ctx.unregisterService(svcId);
 }
@@ -107,16 +138,6 @@ TEST_F(BundleContextTest, UseService) {
 TEST_F(BundleContextTest, UseServices) {
     auto &ctx = this->framework().getFrameworkContext();
 
-    class ITestSvc {
-    public:
-        virtual ~ITestSvc(){};
-        virtual int calc(int input) = 0;
-    };
-    class TestImpl : public ITestSvc {
-    public:
-        virtual ~TestImpl(){};
-        int calc(int input) override { return input * 42; }
-    };
     TestImpl svc{};
 
     long svcId1 = ctx.registerService<ITestSvc>("test service", &svc);
@@ -147,12 +168,6 @@ TEST_F(BundleContextTest, TrackService) {
 
     int count = 0;
 
-    class ITestSvc {
-    public:
-        virtual ~ITestSvc(){};
-        virtual int calc(int input) = 0;
-    };
-
     ITestSvc *svc1 = (ITestSvc*)0x100; //no ranking
     ITestSvc *svc2 = (ITestSvc*)0x200; //no ranking
     ITestSvc *svc3 = (ITestSvc*)0x300; //10 ranking

http://git-wip-us.apache.org/repos/asf/celix/blob/e3339ca4/framework/include/celix/BundleContext.h
----------------------------------------------------------------------
diff --git a/framework/include/celix/BundleContext.h b/framework/include/celix/BundleContext.h
index e6da72f..9d9a274 100644
--- a/framework/include/celix/BundleContext.h
+++ b/framework/include/celix/BundleContext.h
@@ -37,6 +37,49 @@ namespace celix {
         class DependencyManager;
     }
 
+    template<typename I>
+    struct ServiceUseOptions {
+        /*
+         * Service filter info
+         */
+        const std::string &serviceName{}; //required
+        const std::string &versionRange{};
+        const std::string &filter{};
+        const std::string &lang{}; //default will be C++
+
+
+        /*
+         * Callbacks
+         */
+        std::function<void(I &svc)> use{};
+        std::function<void(I &svc, const celix::Properties &props)> useWithProperties{};
+        std::function<void(I &svc, const celix::Properties &props, celix::Bundle
&svcOwner)> useWithOwner{};
+    };
+
+    template<typename I>
+    struct ServiceTrackingOptions {
+        /*
+         * Service filter info
+         */
+        const std::string &serviceName{}; //required
+        const std::string &versionRange{};
+        const std::string &filter{};
+        const std::string &lang{}; //default will be C++
+
+        std::function<void(I* svc)> set{};
+        std::function<void(I* svc)> add{};
+        std::function<void(I* svc)> remove{};
+
+        std::function<void(I* svc, const celix::Properties &props)> setWithProperties{};
+        std::function<void(I* svc, const celix::Properties &props)> addWithProperties{};
+        std::function<void(I* svc, const celix::Properties &props)> removeWithProperties{};
+
+        std::function<void(I* svc, const celix::Properties &props, const celix::Bundle
&svcOwner)> setWithOwner{};
+        std::function<void(I* svc, const celix::Properties &props, const celix::Bundle
&svcOwner)> addWithOwner{};
+        std::function<void(I* svc, const celix::Properties &props, const celix::Bundle
&svcOwner)> removeWithOwner{};
+    };
+
+
     struct BundleRegistrationOptions {
         std::string id{};
         std::string name{};
@@ -68,6 +111,7 @@ namespace celix {
 
         template<typename I>
         long registerCService(const std::string &serviceName, I *svc, const std::string
&version = "", Properties props = {}) noexcept {
+            static_assert(std::is_pod<I>::value, "Service I must be a 'Plain Old Data'
object");
             return this->registerServiceInternal(serviceName, svc, version, celix::Constants::SERVICE_C_LANG,
std::move(props));
         }
 
@@ -90,8 +134,6 @@ namespace celix {
         *
         * @param ctx The bundle context.
         * @param serviceName The required service name to track
-        * @param serviceVersionRange Optional the service version range to track. Can be
empty ("")
-        * @param filter Optional the LDAP filter to use. Can be empty ("")
         * @param set is a required callback, which will be called when a new highest ranking
service is set.
         * @return the tracker id or < 0 if unsuccessful.
         */
@@ -111,9 +153,6 @@ namespace celix {
          *
          * @param ctx The bundle context.
          * @param serviceName The required service name to track
-         * @param serviceVersionRange Optional the service version range to track
-         * @param filter Optional the LDAP filter to use
-         * @param callbackHandle The data pointer, which will be used in the callbacks
          * @param add is a required callback, which will be called when a service is added
and initially for the existing service.
          * @param remove is a required callback, which will be called when a service is removed
          * @return the tracker id or < 0 if unsuccessful.
@@ -141,13 +180,13 @@ namespace celix {
         //TODO add trackCService(s) variants
 
         /**
-         * Note use fucntion by const reference. Only used during the call.
+         * Note use function by const reference. Only used during the call.
          * @param serviceId
          * @param I
          * @return
          */
         template<typename I>
-        bool useService(long serviceId, const std::string &/*serviceName*/ /*sanity*/,
const std::function<void(I &svc, const celix::Properties &props, const celix::Bundle
&svcOwner)> &/*use*/) noexcept {
+        bool useServiceWithId(long serviceId, const std::string &/*serviceName*/ /*sanity*/,
const std::function<void(I &svc, const celix::Properties &props, const celix::Bundle
&svcOwner)> &/*use*/) noexcept {
             std::string filter = std::string{"(service.id="} + std::to_string(serviceId)
+ std::string{")"};
             //TODO use useServiceWithOptions return this->useService<I>(serviceName,
"", filter, use);
             return false;


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