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MDEV-506 Cassandra dynamic columns access

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This commit is contained in:
unknown 2012-09-28 15:27:16 +03:00
commit 245298f25d
13 changed files with 1673 additions and 143 deletions
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79
storage/cassandra/cassandra_se.cc
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@ -17,6 +17,12 @@
#include "cassandra_se.h"
struct st_mysql_lex_string
{
char *str;
size_t length;
};
using namespace std;
using namespace apache::thrift;
using namespace apache::thrift::transport;
@ -74,6 +80,7 @@ class Cassandra_se_impl: public Cassandra_se_interface
std::string rowkey; /* key of the record we're returning now */
SlicePredicate slice_pred;
SliceRange slice_pred_sr;
bool get_slices_returned_less;
bool get_slice_found_rows;
public:
@ -91,6 +98,8 @@ public:
void first_ddl_column();
bool next_ddl_column(char **name, int *name_len, char **value, int *value_len);
void get_rowkey_type(char **name, char **type);
size_t get_ddl_size();
const char* get_default_validator();
/* Settings */
void set_consistency_levels(ulong read_cons_level, ulong write_cons_level);
@ -98,15 +107,19 @@ public:
/* Writes */
void clear_insert_buffer();
void start_row_insert(const char *key, int key_len);
void add_insert_column(const char *name, const char *value, int value_len);
void add_insert_column(const char *name, int name_len,
const char *value, int value_len);
void add_insert_delete_column(const char *name, int name_len);
void add_row_deletion(const char *key, int key_len,
Column_name_enumerator *col_names);
Column_name_enumerator *col_names,
LEX_STRING *names, uint nnames);
bool do_insert();
/* Reads, point lookups */
bool get_slice(char *key, size_t key_len, bool *found);
bool get_next_read_column(char **name, char **value, int *value_len);
bool get_next_read_column(char **name, int *name_len,
char **value, int *value_len );
void get_read_rowkey(char **value, int *value_len);
/* Reads, multi-row scans */
@ -122,6 +135,7 @@ public:
/* Setup that's necessary before a multi-row read. (todo: use it before point lookups, too) */
void clear_read_columns();
void clear_read_all_columns();
void add_read_column(const char *name);
/* Reads, MRR scans */
@ -277,6 +291,16 @@ void Cassandra_se_impl::get_rowkey_type(char **name, char **type)
*name= NULL;
}
size_t Cassandra_se_impl::get_ddl_size()
{
return cf_def.column_metadata.size();
}
const char* Cassandra_se_impl::get_default_validator()
{
return cf_def.default_validation_class.c_str();
}
/////////////////////////////////////////////////////////////////////////////
// Data writes
@ -315,8 +339,9 @@ void Cassandra_se_impl::start_row_insert(const char *key, int key_len)
}
void Cassandra_se_impl::add_row_deletion(const char *key, int key_len,
Column_name_enumerator *col_names)
void Cassandra_se_impl::add_row_deletion(const char *key, int key_len,
Column_name_enumerator *col_names,
LEX_STRING *names, uint nnames)
{
std::string key_to_delete;
key_to_delete.assign(key, key_len);
@ -344,6 +369,9 @@ void Cassandra_se_impl::add_row_deletion(const char *key, int key_len,
const char *col_name;
while ((col_name= col_names->get_next_name()))
slice_pred.column_names.push_back(std::string(col_name));
for (uint i= 0; i < nnames; i++)
slice_pred.column_names.push_back(std::string(names[i].str,
names[i].length));
mut.deletion.predicate= slice_pred;
@ -351,7 +379,9 @@ void Cassandra_se_impl::add_row_deletion(const char *key, int key_len,
}
void Cassandra_se_impl::add_insert_column(const char *name, const char *value,
void Cassandra_se_impl::add_insert_column(const char *name,
int name_len,
const char *value,
int value_len)
{
Mutation mut;
@ -359,7 +389,10 @@ void Cassandra_se_impl::add_insert_column(const char *name, const char *value,
mut.column_or_supercolumn.__isset.column= true;
Column& col=mut.column_or_supercolumn.column;
col.name.assign(name);
if (name_len)
col.name.assign(name, name_len);
else
col.name.assign(name);
col.value.assign(value, value_len);
col.timestamp= insert_timestamp;
col.__isset.value= true;
@ -367,6 +400,23 @@ void Cassandra_se_impl::add_insert_column(const char *name, const char *value,
insert_list->push_back(mut);
}
void Cassandra_se_impl::add_insert_delete_column(const char *name,
int name_len)
{
Mutation mut;
mut.__isset.deletion= true;
mut.deletion.__isset.timestamp= true;
mut.deletion.timestamp= insert_timestamp;
mut.deletion.__isset.predicate= true;
SlicePredicate slice_pred;
slice_pred.__isset.column_names= true;
slice_pred.column_names.push_back(std::string(name, name_len));
mut.deletion.predicate= slice_pred;
insert_list->push_back(mut);
}
bool Cassandra_se_impl::retryable_do_insert()
{
@ -444,8 +494,8 @@ bool Cassandra_se_impl::retryable_get_slice()
}
bool Cassandra_se_impl::get_next_read_column(char **name, char **value,
int *value_len)
bool Cassandra_se_impl::get_next_read_column(char **name, int *name_len,
char **value, int *value_len)
{
bool use_counter=false;
while (1)
@ -468,12 +518,14 @@ bool Cassandra_se_impl::get_next_read_column(char **name, char **value,
ColumnOrSuperColumn& cs= *column_data_it;
if (use_counter)
{
*name_len= cs.counter_column.name.size();
*name= (char*)cs.counter_column.name.c_str();
*value= (char*)&cs.counter_column.value;
*value_len= sizeof(cs.counter_column.value);
}
else
{
*name_len= cs.column.name.size();
*name= (char*)cs.column.name.c_str();
*value= (char*)cs.column.value.c_str();
*value_len= cs.column.value.length();
@ -601,6 +653,13 @@ void Cassandra_se_impl::clear_read_columns()
slice_pred.column_names.clear();
}
void Cassandra_se_impl::clear_read_all_columns()
{
slice_pred_sr.start = "";
slice_pred_sr.finish = "";
slice_pred.__set_slice_range(slice_pred_sr);
}
void Cassandra_se_impl::add_read_column(const char *name_arg)
{