1 files changed, 174 insertions, 0 deletions
diff --git a/zkServerFileSetup/src/zkServerFileSetup.cpp b/zkServerFileSetup/src/zkServerFileSetup.cpp
new file mode 100644
index 0000000..03f48f0
--- /dev/null
+++ b/zkServerFileSetup/src/zkServerFileSetup.cpp
@@ -0,0 +1,174 @@
+//============================================================================
+// Name        : zkServerFileSetup.cpp
+// Author      : Michael P Smith
+// Version     :
+// Copyright   : 
+// Description : Hello World in C++, Ansi-style
+//============================================================================
+
+//============================================================================
+// Name        : ZKTest.cpp
+// Author      : Michael P Smith (AKA, Krin), Under Codethink .Ltd
+// Version     : 0.0.1
+// Copyright   : Your copyright notice
+// Description : a first attempt at making a zookeeper client in C
+//============================================================================
+
+#include <iostream>
+#include <cstring>
+#include <string.h>
+#include <sstream>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "zookeeper.h"
+
+using namespace std;
+
+static zhandle_t *zk;
+static const clientid_t *session_id;
+void watcher(zhandle_t *zzh, int type, int state, const char *path,
+		void *watcherCtx);
+
+int main(int argc, char **argv)
+{
+	session_id = NULL;
+	char* p;
+	cout << "Initialising Zookeeper" << endl; // prints !!!Hello World!!!
+
+	zk = zookeeper_init("localhost:2181", watcher, 3000, session_id, NULL, 0);
+	while (!zk)
+	{
+
+	}
+	p = strtok(NULL, " ");
+	std::cout << "starting authentication" << std::endl;
+
+	zoo_add_auth(zk, "digest", p, p ? strlen(p) : 0, NULL, NULL);
+	while (zoo_state(zk) == 0)
+	{
+
+	}
+	std::cout << "authentication step done" << std::endl;
+
+	while (zk)
+	{
+	}
+	cout << "End of setup Program" << std::endl;
+	return 0;
+} // End of Main
+
+void safeShutdown(zhandle_t *zzh)
+{
+	if (zzh)
+	{
+		cout << "closing Zookeeper connection" << std::endl;
+		zookeeper_close(zzh);
+		zk = 0;
+	}
+}
+
+static const char* state2String(int state)
+{
+	if (state == 0)
+		return "CLOSED_STATE";
+	if (state == ZOO_CONNECTING_STATE)
+		return "CONNECTING_STATE";
+	if (state == ZOO_ASSOCIATING_STATE)
+		return "ASSOCIATING_STATE";
+	if (state == ZOO_CONNECTED_STATE)
+		return "CONNECTED_STATE";
+	if (state == ZOO_EXPIRED_SESSION_STATE)
+		return "EXPIRED_SESSION_STATE";
+	if (state == ZOO_AUTH_FAILED_STATE)
+		return "AUTH_FAILED_STATE";
+
+	return "INVALID_STATE";
+}
+
+static const char* type2String(int type)
+{
+	if (type == ZOO_CREATED_EVENT)
+		return "CREATED_EVENT";
+	if (type == ZOO_DELETED_EVENT)
+		return "DELETED_EVENT";
+	if (type == ZOO_CHANGED_EVENT)
+		return "CHANGED_EVENT";
+	if (type == ZOO_CHILD_EVENT)
+		return "CHILD_EVENT";
+	if (type == ZOO_SESSION_EVENT)
+		return "SESSION_EVENT";
+	if (type == ZOO_NOTWATCHING_EVENT)
+		return "NOTWATCHING_EVENT";
+
+	return "UNKNOWN_EVENT_TYPE";
+}
+void watcher(zhandle_t *zzh, int type, int state, const char *path,
+		void *watcherCtx)
+{
+	if (type == ZOO_SESSION_EVENT)
+	{
+		std::cout << type2String(type) << std::endl;
+		if (state == ZOO_CONNECTED_STATE)
+		{
+			std::cout << state2String(type) << std::endl;
+			/*
+			 * create a temporary zookeeper node that will vanish when this client disconnects,
+			 *  useful for testing.
+			 */
+			zoo_create(zk, "/test", "my_data", 7, &ZOO_OPEN_ACL_UNSAFE,
+					ZOO_EPHEMERAL, NULL, 0);
+
+			zoo_create(zk, "/configTest", "top level configuration file", 28, &ZOO_OPEN_ACL_UNSAFE,
+								0, NULL, 0);
+			char* znodeData = "/configTest/typeOneNode;/typeOneNodeWatchingTest;/typeOneNodeWatchingTest/youShouldSeeThis;";
+			zoo_create(zk, "/configTest/typeOneNode",znodeData, strlen(znodeData), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+
+			char* znodeData1 = "/configTest/typeTwoNode;/typeTwoNodeWatchingTest;/typeTwoNodeWatchingTest/youShouldSeeThis;/typeTwoNodeWatchingTest/youShouldSeeThis/AndThisAlso;";
+			zoo_create(zk, "/configTest/typeTwoNode",znodeData1, strlen(znodeData1), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+
+			char* znodeData2 = "dataPlaceHolder";
+			zoo_create(zk, "/typeOneNodeWatchingTest",znodeData2, strlen(znodeData2), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+			zoo_create(zk, "/typeTwoNodeWatchingTest",znodeData2, strlen(znodeData2), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+			zoo_create(zk, "/typeTwoNodeWatchingTest/youShouldSeeThis",znodeData2, strlen(znodeData2), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+			zoo_create(zk, "/typeTwoNodeWatchingTest/youShouldSeeThis/AndThisAlso",znodeData2, strlen(znodeData2), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+			zoo_create(zk, "/typeOneNodeWatchingTest/youShouldSeeThis",znodeData2, strlen(znodeData2), &ZOO_OPEN_ACL_UNSAFE, 0, 0, 0);
+
+			safeShutdown(zk);
+			session_id = zoo_client_id(zzh);
+			return;
+		}
+		else if (state == ZOO_AUTH_FAILED_STATE)
+		{
+			std::cout << state2String(type) << std::endl;
+			safeShutdown(zzh);
+		}
+		else if (state == ZOO_EXPIRED_SESSION_STATE)
+		{
+			std::cout << state2String(type) << std::endl;
+			zk = zookeeper_init("localhost:2181", watcher, 3000, session_id,
+					NULL, 0);
+		}
+	}
+	else if (type == ZOO_DELETED_EVENT)
+	{
+		std::cout << type2String(type) << std::endl;
+		zoo_exists(zk, path, true, NULL);
+	}
+	else if (type == ZOO_CHILD_EVENT)
+	{
+		std::cout << type2String(type) << std::endl;
+	}
+	else if (type == ZOO_CHANGED_EVENT)
+	{
+		zoo_exists(zk, path, true, NULL);
+		std::cout << type2String(type) << std::endl;
+	}
+	else if (type == ZOO_CREATED_EVENT)
+	{
+		zoo_exists(zk, path, true, NULL);
+		std::cout << type2String(type) << std::endl;
+		cout << "creation of watched node detected" << std::endl;
+	}
+}