/*
* 1.exec segment usage calc
* 2.emit (segno,seg_usage_text)
*/
void map(HadoopPipes::MapContext& context) {
int ret = 0;
printf("DBG:-- enter func:%s\n",__func__);
const char *segfile = context.getInputKey().data();
printf("DBG:-- key len :%d ,segfile:%s\n",context.getInputValue().size(),segfile);
uint64_t segno = get_segfile_no(segfile);
HADOOP_ASSERT(segfile != NULL, "failed read segfile ");
GHashTable *ss_hashtable = g_hash_table_new_full(g_str_hash,g_str_equal,NULL,NULL);
ret = load_all_snapshot(m_storage,SNAPSHOT_FILE,ss_hashtable);
printf("DBG:-- snapshot loaded\n");
g_assert(ret == 0);
GList* ss_list = NULL;
ret = sort_all_snapshot(ss_hashtable,&ss_list);
printf("DBG:--snapshot sorted\n");
g_assert(ss_list !=NULL);
g_assert(ret == 0);
//struct inode * latest_inode = load_latest_inode(storage);
struct inode * inode=NULL;
char *up_sname;
ret = get_refer_inode_between_snapshots(m_storage,segno,ss_list,&inode,&up_sname);
SEG_USAGE_T seg_usage;
memset(&seg_usage,0,sizeof(SEG_USAGE_T));
if(ret == 0){
printf("DBG:--seg is in snapshots\n");
strncpy(seg_usage.up_sname,up_sname,strlen(up_sname));
ret = seg_usage_calc(m_storage,m_block_size,segno,inode,&seg_usage);
printf("up sname is:%s\n",seg_usage.up_sname);
g_assert(ret ==0);
}
if(ret == 1){
printf("DBG:--seg is on snapshot,do nothing\n");
}
if(ret == 2){
printf("DBG:--seg is above snapshot,maybe need migrate\n");
strncpy(seg_usage.up_sname,EMPTY_UP_SNAPSHOT,strlen(EMPTY_UP_SNAPSHOT));
printf("DBG:--up sname is:%s\n",seg_usage.up_sname);
inode = load_latest_inode(m_storage);
ret = seg_usage_calc(m_storage,m_block_size,segno,inode,&seg_usage);
g_assert(ret ==0);
}
#if 1
string key =string(segfile,strlen(segfile));
char segtextbuf[4096];
uint32_t len = seg_usage2text(&seg_usage,segtextbuf);
printf("DBG:--segtextbuf :%s ..\n",segtextbuf);
string value = string(segtextbuf,len);
printf("DBG:--send segment usage text to reducer ..\n");
context.emit(key,value);
#endif
g_free(seg_usage.bitmap);
}
void WayJoin2Mapper::map(HadoopPipes::MapContext& context)
{
_context = &context;
if (_reader == NULL)
{
HadoopPipes::RecordReader* rr = pp::HadoopPipesUtils::getRecordReader(&context);
_reader = dynamic_cast<WayJoin2RecordReader*>(rr);
if (_reader == NULL)
{
throw InternalErrorException("Expected a record reader of type WayJoin2RecordReader");
}
}
if (_reader->getRecordType() == WayJoin2InputSplit::PbfInputSplitType)
{
mapOsmMap(_reader->getMap());
}
else
{
const string& key = context.getInputKey();
const string& value = context.getInputValue();
if (key.size() != sizeof(int64_t))
{
throw InternalErrorException("Expected key to be a int64_t");
}
if (value.size() != sizeof(WayJoin1Reducer::Value))
{
throw InternalErrorException("Expected value to be a WayJoin1Reducer::Value");
}
int64_t* k = (int64_t*)key.data();
WayJoin1Reducer::Value* v = (WayJoin1Reducer::Value*)value.data();
mapWayPoints(*k, *v);
}
}