1 files changed, 107 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/filter_stdout/stdout.c b/src/fluent-bit/plugins/filter_stdout/stdout.c
new file mode 100644
index 000000000..1fb3fe040
--- /dev/null
+++ b/src/fluent-bit/plugins/filter_stdout/stdout.c
@@ -0,0 +1,107 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  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.
+ */
+
+#include <stdio.h>
+
+#include <fluent-bit/flb_filter.h>
+#include <fluent-bit/flb_filter_plugin.h>
+#include <fluent-bit/flb_utils.h>
+#include <fluent-bit/flb_time.h>
+#include <fluent-bit/flb_log_event_decoder.h>
+#include <fluent-bit/flb_log_event_encoder.h>
+#include <msgpack.h>
+
+static int cb_stdout_init(struct flb_filter_instance *f_ins,
+                          struct flb_config *config,
+                          void *data)
+{
+    (void) f_ins;
+    (void) config;
+    (void) data;
+
+    if (flb_filter_config_map_set(f_ins, (void *)config) == -1) {
+        flb_plg_error(f_ins, "unable to load configuration");
+        return -1;
+    }
+    return 0;
+}
+
+static int cb_stdout_filter(const void *data, size_t bytes,
+                            const char *tag, int tag_len,
+                            void **out_buf, size_t *out_bytes,
+                            struct flb_filter_instance *f_ins,
+                            struct flb_input_instance *i_ins,
+                            void *filter_context,
+                            struct flb_config *config)
+{
+    struct flb_log_event_decoder log_decoder;
+    struct flb_log_event log_event;
+    size_t cnt;
+    int ret;
+
+    (void) out_buf;
+    (void) out_bytes;
+    (void) f_ins;
+    (void) i_ins;
+    (void) filter_context;
+    (void) config;
+
+    ret = flb_log_event_decoder_init(&log_decoder, (char *) data, bytes);
+
+    if (ret != FLB_EVENT_DECODER_SUCCESS) {
+        flb_plg_error(f_ins,
+                      "Log event decoder initialization error : %d", ret);
+
+        return FLB_FILTER_NOTOUCH;
+    }
+
+    cnt = 0;
+
+    while ((ret = flb_log_event_decoder_next(
+                    &log_decoder,
+                    &log_event)) == FLB_EVENT_DECODER_SUCCESS) {
+        printf("[%zd] %s: [", cnt++, tag);
+        printf("%"PRIu32".%09lu, ",
+               (uint32_t) log_event.timestamp.tm.tv_sec,
+               log_event.timestamp.tm.tv_nsec);
+        msgpack_object_print(stdout, *log_event.metadata);
+        printf(", ");
+        msgpack_object_print(stdout, *log_event.body);
+        printf("]\n");
+    }
+
+    flb_log_event_decoder_destroy(&log_decoder);
+
+    return FLB_FILTER_NOTOUCH;
+}
+
+static struct flb_config_map config_map[] = {
+    /* EOF */
+    {0}
+};
+
+struct flb_filter_plugin filter_stdout_plugin = {
+    .name         = "stdout",
+    .description  = "Filter events to STDOUT",
+    .cb_init      = cb_stdout_init,
+    .cb_filter    = cb_stdout_filter,
+    .cb_exit      = NULL,
+    .config_map   = config_map,
+    .flags        = 0
+};