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JSON interface for RPC Client [Issue #14] #109

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Test FAILed.
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@@ -158,14 +185,16 @@ TEST_F(AtomicMultilogTest, AppendAndGetDurableRelaxedTest) {
TEST_F(AtomicMultilogTest, AppendAndGetJSONRecordTest1) {
atomic_multilog mlog("my_table", s, "/tmp", storage::IN_MEMORY, archival_mode::OFF, MGMT_POOL);

std::string rec1 = "{'a':'false', 'b':'0', 'c':'0', 'd':'0', 'e':'0', 'f':'0.000000', 'g':'0.010000', 'h':'abc'}";
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We should also test if this syntax works -- this would be the main use-case, I don't expect users to convert it to JSON and then back to string as the test now does.

* @param json_data The json-formatted data to be stored
* @return The offset of where the data is located
*/
size_t append_json(std::string json_data);
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Suggested change
size_t append_json(std::string json_data);
size_t append_json(const std::string &json_data);

*
* @return A pointer to the record data
*/
void *json_string_to_data(const std::string json_record) const;
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void *json_string_to_data(const std::string json_record) const;
void *json_string_to_data(const std::string &json_record) const;

*
* @param record The records used for conversion
*
* @return A pointer to the record data
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This does not return anything..

@@ -228,6 +228,13 @@ size_t atomic_multilog::append(void *data) {
return offset;
}

size_t atomic_multilog::append_json(std::string json_record) {
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Suggested change
size_t atomic_multilog::append_json(std::string json_record) {
size_t atomic_multilog::append_json(const std::string &json_record) {

@@ -94,6 +94,50 @@ std::string schema_t::to_string() const {
return str;
}

void *schema_t::json_string_to_data(const std::string json_record) const {
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void *schema_t::json_string_to_data(const std::string json_record) const {
void *schema_t::json_string_to_data(const std::string &json_record) const {


std::stringstream ss;
pt::write_json(ss, root);
std::string ret = ss.str();
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Maybe try printing this out and use the printed string as your test input? Tests are also useful as sample usage for users.

void rpc_service_handler::read_json(std::string &_return, int64_t id, const int64_t offset, const int64_t nrecords) {
atomic_multilog *mlog = store_->get_atomic_multilog(id);
_return = mlog->read_json((uint64_t) offset);
// TODO: put in functionality for nrecords to be read
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Throw unsupported exception instead of incorrect functionality...


std::stringstream ss;
pt::write_json(ss, root);
std::string ret = ss.str();
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Same thing here -- need to figure out what correct JSON string format is. We need to document it somewhere too.


std::stringstream ss;
pt::write_json(ss, root);
std::string ret = ss.str();
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Same as before.

@@ -0,0 +1,299 @@
#!/usr/bin/env python
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This file should not be checked in.

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running genall.sh resulted in this; were there supposed to be no changes?

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Yes I know it generates this file, but we don't want to check it in. Ideally the genall.sh file should delete it explicitly -- I can add that change, but can you add a commit to remove the file?

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sounds good; are there any other files that shouldn't be checked in?

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No, that's the only one.

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Test PASSed.
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/**
* A json cursor that make records into a json formatted string
*/
class aggregated_json_cursor : public json_cursor {
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Don't need any aggregation

* @param cexpr The filter expression
* @param batch_size The number of records in the batch
*/
aggregated_json_cursor(std::unique_ptr<offset_cursor> o_cursor,
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This should take std::unique_ptr<record_cursor> as first argument, const schema_t *as second argument (for converting record to json) and size_t batch_size as the third and last argument.

size_t i = 0;
for (; i < current_batch_.size() && o_cursor_->has_more();
++i, o_cursor_->advance()) {
uint64_t o = o_cursor_->get();
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None of this logic will be needed; only need to convert each record in record_cursor to JSON.

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Test FAILed.
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Test FAILed.

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Test FAILed.
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https://amplab.cs.berkeley.edu/jenkins//job/confluo-prb/334/
Test FAILed.

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Test FAILed.
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https://amplab.cs.berkeley.edu/jenkins//job/confluo-prb/335/
Test FAILed.

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Test FAILed.
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https://amplab.cs.berkeley.edu/jenkins//job/confluo-prb/337/
Test FAILed.

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