VPP-205: jvpp plugin support.

Splits jvpp into two jars
jvpp-registry.jar - base jvpp functionality
jvpp-core.jar - Java wrapper for vpe.api

Plugins can be generated the same way jvpp-core.jar is.
Example (nsh):
https://gerrit.fd.io/r/#/c/2118/

Change-Id: I2254f90b2c3e423563bb91bf70877979f1e90a7d
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/vpp-api/java/jvpp-common/jvpp_common.c b/vpp-api/java/jvpp-common/jvpp_common.c
new file mode 100644
index 00000000000..ebec9e94fd1
--- /dev/null
+++ b/vpp-api/java/jvpp-common/jvpp_common.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define _GNU_SOURCE /* for strcasestr(3) */
+
+#include "jvpp_common.h"
+
+#ifndef JVPP_DEBUG
+#define JVPP_DEBUG 0
+#endif
+
+#if JVPP_DEBUG == 1
+#define DEBUG_LOG(...) clib_warning(__VA_ARGS__)
+#else
+#define DEBUG_LOG(...)
+#endif
+
+/* shared jvpp main structure */
+jvpp_main_t jvpp_main __attribute__((aligned (64)));
+
+void call_on_error(const char* callName, int contextId, int retval,
+        jclass callbackClass, jobject callbackObject,
+        jclass callbackExceptionClass) {
+    DEBUG_LOG("\nCallOnError : callback=%s, retval=%d, context=%d\n", callName,
+            clib_net_to_host_u32(retval), clib_net_to_host_u32(context));
+    JNIEnv *env = jvpp_main.jenv;
+    if (!callbackClass) {
+        DEBUG_LOG("CallOnError : jm->callbackClass is null!\n");
+        return;
+    }
+    jmethodID excConstructor = (*env)->GetMethodID(env, callbackExceptionClass,
+            "<init>", "(Ljava/lang/String;II)V");
+    if (!excConstructor) {
+        DEBUG_LOG("CallOnError : excConstructor is null!\n");
+        return;
+    }
+    jmethodID callbackExcMethod = (*env)->GetMethodID(env, callbackClass,
+            "onError", "(Lorg/openvpp/jvpp/VppCallbackException;)V");
+    if (!callbackExcMethod) {
+        DEBUG_LOG("CallOnError : callbackExcMethod is null!\n");
+        return;
+    }
+
+    jobject excObject = (*env)->NewObject(env, callbackExceptionClass,
+            excConstructor, (*env)->NewStringUTF(env, callName),
+            clib_net_to_host_u32(contextId), clib_net_to_host_u32(retval));
+    if (!excObject) {
+        DEBUG_LOG("CallOnError : excObject is null!\n");
+        return;
+    }
+
+    (*env)->CallVoidMethod(env, callbackObject, callbackExcMethod, excObject);
+    DEBUG_LOG("CallOnError : Response sent\n");
+}