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From GitBox <...@apache.org>
Subject [GitHub] [celix] pnoltes commented on a change in pull request #223: Feature/pubsub custom serializers
Date Mon, 18 May 2020 07:45:17 GMT

pnoltes commented on a change in pull request #223:
URL: https://github.com/apache/celix/pull/223#discussion_r426428191



##########
File path: bundles/pubsub/pubsub_serializer_avrobin/src/pubsub_avrobin_serialization_provider.c
##########
@@ -0,0 +1,120 @@
+/**
+ *Licensed to the Apache Software Foundation (ASF) under one
+ *or more contributor license agreements.  See the NOTICE file
+ *distributed with this work for additional information
+ *regarding copyright ownership.  The ASF licenses this file
+ *to you 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.
+ */
+
+#include "pubsub_avrobin_serialization_provider.h"
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+
+#include "avrobin_serializer.h"
+#include "dyn_message.h"
+#include "celix_log_helper.h"
+#include "pubsub_message_serialization_service.h"
+
+static void dfi_log(void *handle, int level, const char *file, int line, const char *msg,
...) {
+    va_list ap;
+    celix_log_helper_t *log = handle;
+    char *logStr = NULL;
+    va_start(ap, msg);
+    vasprintf(&logStr, msg, ap);
+    va_end(ap);
+    celix_logHelper_log(log, level, "FILE:%s, LINE:%i, MSG:%s", file, line, logStr);
+    free(logStr);
+}
+
+
+static celix_status_t pubsub_avrobinSerializationProvider_serialize(pubsub_serialization_entry_t*
entry, const void* msg, struct iovec** output, size_t* outputIovLen) {
+    celix_status_t status = CELIX_SUCCESS;
+
+    if (output != NULL) {
+        *output = calloc(1, sizeof(struct iovec));
+        *outputIovLen = 1;
+    } else {
+        return CELIX_ILLEGAL_ARGUMENT;
+    }
+
+    uint8_t *serializedOutput = NULL;
+    size_t serializedOutputLen;
+    dyn_type* dynType;
+    dynMessage_getMessageType(entry->msgType, &dynType);
+
+    if (avrobinSerializer_serialize(dynType, msg, &serializedOutput, &serializedOutputLen)
!= 0) {
+        status = CELIX_BUNDLE_EXCEPTION;
+    }
+
+    if (status == CELIX_SUCCESS) {
+        (**output).iov_base = (void*)serializedOutput;
+        (**output).iov_len  = serializedOutputLen;
+    }
+
+    return status;
+}
+
+void pubsub_avrobinSerializationProvider_freeSerializeMsg(pubsub_serialization_entry_t* entry,
struct iovec* input, size_t inputIovLen) {
+    if (input != NULL) {
+        if (entry->msgType != NULL) {
+            for (int i = 0; i < inputIovLen; i++) {
+                if (input[i].iov_base) {
+                    free(input[i].iov_base);
+                }
+                input[i].iov_base = NULL;
+                input[i].iov_len = 0;
+            }
+        }
+        free(input);
+    }
+}
+
+celix_status_t pubsub_avrobinSerializationProvider_deserialize(pubsub_serialization_entry_t*
entry, const struct iovec* input, size_t inputIovLen, void **out) {
+    celix_status_t status = CELIX_SUCCESS;
+    if (input == NULL) return CELIX_BUNDLE_EXCEPTION;
+    void *msg = NULL;
+    dyn_type* dynType;
+    dynMessage_getMessageType(entry->msgType, &dynType);
+
+    assert(inputIovLen == 1);
+
+    if (avrobinSerializer_deserialize(dynType, (uint8_t *)input->iov_base, input->iov_len,
&msg) != 0) {
+        status = CELIX_BUNDLE_EXCEPTION;
+    } else{
+        *out = msg;
+    }
+
+    return status;
+}
+
+void pubsub_avrobinSerializationProvider_freeDeserializeMsg(pubsub_serialization_entry_t*
entry, void *msg) {
+    if (entry->msgType != NULL) {
+        dyn_type* dynType;
+        dynMessage_getMessageType(entry->msgType, &dynType);
+        dynType_free(dynType, msg);
+    }
+}
+
+pubsub_serialization_provider_t* pubsub_avrobinSerializationProvider_create(celix_bundle_context_t*
ctx)  {
+    pubsub_serialization_provider_t* provider = pubsub_serializationProvider_create(ctx,
"avrobin", 0, pubsub_avrobinSerializationProvider_serialize, pubsub_avrobinSerializationProvider_freeSerializeMsg,
pubsub_avrobinSerializationProvider_deserialize, pubsub_avrobinSerializationProvider_freeDeserializeMsg);
+    avrobinSerializer_logSetup(dfi_log, pubsub_serializationProvider_getLogHelper(provider),
1);;

Review comment:
       updated




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