// =-=-=-=-=-=-=-
// used to allow the resource to determine which host
// should provide the requested operation
irods::error impostor_resource_redirect_plugin(
irods::resource_plugin_context& _ctx,
const std::string* _opr,
const std::string* _curr_host,
irods::hierarchy_parser* _out_parser,
float* _out_vote ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// check the context validity
irods::error ret = _ctx.valid< irods::file_object >();
if ( ( result = ASSERT_PASS( ret, "Invalid resource context." ) ).ok() ) {
// =-=-=-=-=-=-=-
// check incoming parameters
if ( ( result = ASSERT_ERROR( _opr && _curr_host && _out_parser && _out_vote, SYS_INVALID_INPUT_PARAM, "Invalid input parameter." ) ).ok() ) {
// =-=-=-=-=-=-=-
// cast down the chain to our understood object type
irods::file_object_ptr file_obj = boost::dynamic_pointer_cast< irods::file_object >( _ctx.fco() );
// =-=-=-=-=-=-=-
// get the name of this resource
std::string resc_name;
ret = _ctx.prop_map().get< std::string >( irods::RESOURCE_NAME, resc_name );
if ( ( result = ASSERT_PASS( ret, "Failed in get property for name." ) ).ok() ) {
// =-=-=-=-=-=-=-
// add ourselves to the hierarchy parser by default
_out_parser->add_child( resc_name );
// =-=-=-=-=-=-=-
// test the operation to determine which choices to make
if ( irods::OPEN_OPERATION == ( *_opr ) ||
irods::WRITE_OPERATION == ( *_opr ) ) {
// =-=-=-=-=-=-=-
// call redirect determination for 'get' operation
ret = impostor_resource_redirect_open( _ctx.prop_map(), file_obj, resc_name, ( *_curr_host ), ( *_out_vote ) );
result = ASSERT_PASS_MSG( ret, "Failed redirecting for open." );
}
else if ( irods::CREATE_OPERATION == ( *_opr ) ) {
// =-=-=-=-=-=-=-
// call redirect determination for 'create' operation
ret = impostor_resource_redirect_create( _ctx.prop_map(), file_obj, resc_name, ( *_curr_host ), ( *_out_vote ) );
result = ASSERT_PASS_MSG( ret, "Failed redirecting for create." );
}
else {
// =-=-=-=-=-=-=-
// must have been passed a bad operation
result = ASSERT_ERROR( false, INVALID_OPERATION, "Operation not supported." );
}
}
}
}
return result;
} // impostor_resource_redirect_plugin
/// =-=-=-=-=-=-=-
/// @brief interface to notify of a file modification
irods::error random_file_modified(
irods::resource_plugin_context& _ctx ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed selecting random resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call rename on the child
err = resc->call( _ctx.comm(), irods::RESOURCE_OP_MODIFIED, _ctx.fco() );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
return result;
} // random_file_modified
// =-=-=-=-=-=-=-
/// @brief interface for POSIX closedir
irods::error random_file_closedir(
irods::resource_plugin_context& _ctx ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::collection_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed to select random resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call closedir on the child
err = resc->call( _ctx.comm(), irods::RESOURCE_OP_CLOSEDIR, _ctx.fco() );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
return result;
} // random_file_closedir
// =-=-=-=-=-=-=-
// interface for POSIX Open
irods::error random_file_open(
irods::resource_plugin_context& _ctx ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed in file open." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call open operation on the child
err = resc->call( _ctx.comm(), irods::RESOURCE_OP_OPEN, _ctx.fco() );
result = ASSERT_PASS_MSG( err, "Failed calling open on the child." );
}
return result;
} // random_file_open
/// =-=-=-=-=-=-=-
/// @brief This routine is for testing the TEST_STAGE_FILE_TYPE.
/// Just copy the file from cacheFilename to filename. optionalInfo info
/// is not used.
irods::error random_file_sync_to_arch(
irods::resource_plugin_context& _ctx,
const char* _cache_file_name ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed selecting random resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call synctoarch on the child
err = resc->call< const char* >( _ctx.comm(), irods::RESOURCE_OP_SYNCTOARCH, _ctx.fco(), _cache_file_name );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
return result;
} // random_file_sync_to_arch
/// =-=-=-=-=-=-=-
/// @brief interface for POSIX rename
irods::error random_file_rename(
irods::resource_plugin_context& _ctx,
const char* _new_file_name ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed to select random resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call rename on the child
err = resc->call< const char* >( _ctx.comm(), irods::RESOURCE_OP_RENAME, _ctx.fco(), _new_file_name );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
return result;
} // random_file_rename
/// =-=-=-=-=-=-=-
/// @brief interface for POSIX Stat
irods::error random_file_stat(
irods::resource_plugin_context& _ctx,
struct stat* _statbuf ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::data_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed selecting random child resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call stat on the child
err = resc->call< struct stat* >( _ctx.comm(), irods::RESOURCE_OP_STAT, _ctx.fco(), _statbuf );
result = ASSERT_PASS_MSG( err, "Failed in call to child operation." );
}
return result;
} // random_file_stat
/// =-=-=-=-=-=-=-
/// @brief interface for POSIX lseek
irods::error random_file_lseek(
irods::resource_plugin_context& _ctx,
long long _offset,
int _whence ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed to select random child." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call lseek on the child
err = resc->call< long long, int >( _ctx.comm(), irods::RESOURCE_OP_LSEEK, _ctx.fco(), _offset, _whence );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
return result;
} // random_file_lseek
/// =-=-=-=-=-=-=-
/// @brief interface for POSIX Write
irods::error random_file_write(
irods::resource_plugin_context& _ctx,
void* _buf,
int _len ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// get the child resc to call
irods::resource_ptr resc;
irods::error err = random_get_resc_for_call< irods::file_object >( _ctx, resc );
if ( ( result = ASSERT_PASS( err, "Failed choosing child resource." ) ).ok() ) {
// =-=-=-=-=-=-=-
// call write on the child
err = resc->call< void*, int >( _ctx.comm(), irods::RESOURCE_OP_WRITE, _ctx.fco(), _buf, _len );
result = ASSERT_PASS_MSG( err, "Failed calling operation on child resource." );
}
return result;
} // random_file_write
/// =-=-=-=-=-=-=-
/// @brief used to allow the resource to determine which host
/// should provide the requested operation
irods::error random_redirect(
irods::resource_plugin_context& _ctx,
const std::string* _opr,
const std::string* _curr_host,
irods::hierarchy_parser* _out_parser,
float* _out_vote ) {
irods::error result = SUCCESS();
// =-=-=-=-=-=-=-
// check incoming parameters
irods::error err = random_check_params< irods::file_object >( _ctx );
if ( ( result = ASSERT_PASS( err, "Invalid resource context." ) ).ok() ) {
if ( ( result = ASSERT_ERROR( _opr && _curr_host && _out_parser && _out_vote, SYS_INVALID_INPUT_PARAM,
"Invalid parameters." ) ).ok() ) {
// =-=-=-=-=-=-=-
// get the object's hier string
irods::file_object_ptr file_obj = boost::dynamic_pointer_cast< irods::file_object >( _ctx.fco() );
std::string hier = file_obj->resc_hier( );
// =-=-=-=-=-=-=-
// get the object's hier string
std::string name;
err = _ctx.prop_map().get< std::string >( irods::RESOURCE_NAME, name );
if ( ( result = ASSERT_PASS( err, "Failed to get property: \"%s\".", irods::RESOURCE_NAME.c_str() ) ).ok() ) {
// =-=-=-=-=-=-=-
// add ourselves into the hierarch before calling child resources
_out_parser->add_child( name );
// =-=-=-=-=-=-=-
// test the operation to determine which choices to make
if ( irods::OPEN_OPERATION == ( *_opr ) ||
irods::WRITE_OPERATION == ( *_opr ) ) {
// =-=-=-=-=-=-=-
// get the next child pointer in the hierarchy, given our name and the hier string
irods::resource_ptr resc;
err = get_next_child_for_open_or_write( name, file_obj, _ctx.child_map(), resc );
if ( ( result = ASSERT_PASS( err, "Failed to get next child in the hierarchy." ) ).ok() ) {
// =-=-=-=-=-=-=-
// forward the redirect call to the child for assertion of the whole operation,
// there may be more than a leaf beneath us
err = resc->call< const std::string*, const std::string*, irods::hierarchy_parser*, float* >( _ctx.comm(),
irods::RESOURCE_OP_RESOLVE_RESC_HIER,
_ctx.fco(), _opr, _curr_host, _out_parser,
_out_vote );
result = ASSERT_PASS_MSG( err, "Failed calling child operation." );
}
}
else if ( irods::CREATE_OPERATION == ( *_opr ) ) {
// =-=-=-=-=-=-=-
// get the next_child resource for create
irods::resource_ptr resc;
err = get_next_valid_child_resource( _ctx, _opr, _curr_host, _out_parser, _out_vote );
result = ASSERT_PASS( err, "Failed getting next valid child." );
}
else {
// =-=-=-=-=-=-=-
// must have been passed a bad operation
result = ASSERT_ERROR( false, INVALID_OPERATION, "Operation not supported: \"%s\".",
_opr->c_str() );
}
}
}
}
return result;
} // random_redirect