support show the summary of kafka metadata.

trunk/src/protocol/srs_kafka_stack.cpp

@@ -23,7 +23,7 @@
 
 #include <srs_kafka_stack.hpp>
 
-#include <string>
+#include <sstream>
 using namespace std;
 
 #include <srs_kernel_error.hpp>
@@ -31,6 +31,8 @@ using namespace std;
 #include <srs_kernel_log.hpp>
 #include <srs_protocol_io.hpp>
 #include <srs_protocol_stream.hpp>
+#include <srs_kernel_utility.hpp>
+#include <srs_protocol_utility.hpp>
 
 #ifdef SRS_AUTO_KAFKA
 
@@ -64,6 +66,15 @@ bool SrsKafkaString::empty()
     return _size <= 0;
 }
 
+string SrsKafkaString::to_str()
+{
+    string ret;
+    if (_size > 0) {
+        ret.append(data, _size);
+    }
+    return ret;
+}
+
 int SrsKafkaString::nb_bytes()
 {
     return _size == -1? 2 : 2 + _size;
@@ -1077,8 +1088,24 @@ int SrsKafkaClient::fetch_metadata(string topic, SrsKafkaTopicMetadataResponse**
 vector<string> srs_kafka_array2vector(SrsKafkaArray<SrsKafkaString>* arr)
 {
     vector<string> strs;
-    for (int i = 0; i < arr->nb_bytes(); i++) {
+    
+    for (int i = 0; i < arr->size(); i++) {
+        SrsKafkaString* elem = arr->at(i);
+        strs.push_back(elem->to_str());
     }
+    
+    return strs;
+}
+
+vector<string> srs_kafka_array2vector(SrsKafkaArray<int32_t>* arr)
+{
+    vector<string> strs;
+    
+    for (int i = 0; i < arr->size(); i++) {
+        int32_t elem = arr->at(i);
+        strs.push_back(srs_int2str(elem));
+    }
+    
     return strs;
 }
 

trunk/src/protocol/srs_kafka_stack.hpp

@@ -77,6 +77,7 @@ public:
 public:
     virtual bool null();
     virtual bool empty();
+    virtual std::string to_str();
 // interface ISrsCodec
 public:
     virtual int nb_bytes();
@@ -147,6 +148,14 @@ public:
         length++;
         elems.push_back(elem);
     }
+    virtual int size()
+    {
+        return length;
+    }
+    virtual T* at(int index)
+    {
+        return elems.at(index);
+    }
 // interface ISrsCodec
 public:
     virtual int nb_bytes()
@@ -228,6 +237,14 @@ public:
         length++;
         elems.push_back(elem);
     }
+    virtual int size()
+    {
+        return length;
+    }
+    virtual int32_t at(int index)
+    {
+        return elems.at(index);
+    }
     // interface ISrsCodec
 public:
     virtual int nb_bytes()
@@ -792,6 +809,7 @@ public:
 
 // convert kafka array[string] to vector[string]
 extern std::vector<std::string> srs_kafka_array2vector(SrsKafkaArray<SrsKafkaString>* arr);
+extern std::vector<std::string> srs_kafka_array2vector(SrsKafkaArray<int32_t>* arr);
 
 #endif
 

trunk/src/protocol/srs_protocol_utility.cpp

@@ -312,3 +312,17 @@ int srs_write_large_iovs(ISrsProtocolReaderWriter* skt, iovec* iovs, int size, s
     return ret;
 }
 
+string srs_join_vector_string(vector<string>& vs, string separator)
+{
+    string str = "";
+    
+    for (int i = 0; i < (int)vs.size(); i++) {
+        str += vs.at(i);
+        if (i != (int)vs.size() - 1) {
+            str += separator;
+        }
+    }
+    
+    return str;
+}
+

trunk/src/protocol/srs_protocol_utility.hpp

@@ -35,6 +35,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #endif
 
 #include <string>
+#include <vector>
 
 #include <srs_kernel_consts.hpp>
 
@@ -130,5 +131,8 @@ extern int srs_write_large_iovs(
     ssize_t* pnwrite = NULL
 );
 
+// join string in vector with indicated separator
+extern std::string srs_join_vector_string(std::vector<std::string>& vs, std::string separator);
+
 #endif