Qore ConnectionProvider Module Reference 1.9.1
Loading...
Searching...
No Matches
AbstractConnection.qc.dox.h
1// -*- mode: c++; indent-tabs-mode: nil -*-
2// Qore AbstractConnection class definition
3
4/* AbstractConnection.qc Copyright 2016 - 2023 Qore Technologies, s.r.o.
5
6 Permission is hereby granted, free of charge, to any person obtaining a
7 copy of this software and associated documentation files (the "Software"),
8 to deal in the Software without restriction, including without limitation
9 the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 and/or sell copies of the Software, and to permit persons to whom the
11 Software is furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 DEALINGS IN THE SOFTWARE.
23*/
24
26
30
35
36public:
38 string name;
39
41 string desc;
42
44 string url;
45
47 string safe_url;
48
50 *hash<auto> orig_opts;
51
53 *hash<auto> opts;
54
56 hash<auto> urlh;
57
60
62 string status = "not checked";
63
65 bool up = False;
66
68 bool monitor;
69
71 date updated;
72
74 bool loopback = False;
75
77 static *code post_processing;
78
80 bool enabled = True;
81
83 bool locked = False;
84
86 bool debug_data = False;
87
89 hash<auto> tags = {};
90
93
96
99
102
105
107 hash<auto> internal_info;
108
110
119 deprecated
121 string desc,
122 string url,
123 bool monitor,
124 *hash opts,
125 hash urlh,
126 *string safe_url,
127 *bool enabled) {
128 // remove "enabled" option from option hash, if any
129 *bool opt_enabled = remove opts.enabled;
130 hash<auto> attributes = {
131 "monitor": monitor,
132 "enabled": enabled ?? opt_enabled ?? True,
133 };
134 constructorInit(name, desc, url, attributes, opts ?? {});
135 }
136
138
155 constructor(string name, string description, string url, hash<auto> attributes = {}, hash<auto> options = {});
156
157
159
163 string getName();
164
165
167
172
173
175
179 string getUrl();
180
181
183
187 string getSafeUrl();
188
189
191
195 hash<PingInfo> ping(bool throw_exception = False);
196
197
199protected:
200 hash<PingInfo> pingIntern(hash<PingInfo> rv);
201public:
202
203
205
211 hash<ConnectionInfo> getInfo(bool with_password = False);
212
213
215
220 hash<ConnectionInfo> getInfo(*hash<auto> opts);
221
222
224
228 hash<auto> getExtendedInfo(*hash<auto> opts);
229
230
232
234 hash<ConfigInfo> getConfigHash();
235
236
238 hash<ConnectionSchemeInfo> getConnectionSchemeInfo();
239
240
242 *hash<auto> getOptions();
243
244
246 *hash<auto> getRuntimeOptions();
247
248
250 *hash<auto> getDefaultOptions();
251
252
254 *hash<auto> getRealOptions();
255
256
258
260 object get(bool connect = True, *hash<auto> rtopts);
261
262
264
267
268
270 hash<auto> getTags();
271
272
274 auto getTag(string tag);
275
276
278
280 auto getTagEx(string tag);
281
282
284
295 AbstractDataProvider getDataProvider();
296
297
299
309
310
312
324
325
327
336
337
339
343 object getPollImpl();
344
345
347 handlePingSuccess(date delta);
348
349
351 handlePingFailed(date delta, hash<ExceptionInfo> ex);
352
353
355 handlePingFailed(date delta, string err);
356
357
359
361protected:
363public:
364
365
367
375protected:
376 hash<UrlInfo> parseUrl(string url);
377public:
378
379
381
394protected:
395 string getSafeUrl(hash<auto> urlh);
396public:
397
398
400
407protected:
408 hash<auto> validateOptions(hash<auto> options);
409public:
410
411
413
416private:
417 constructorInit(string name, string description, string url, hash<auto> attributes, hash<auto> options);
418public:
419
420
422protected:
424public:
425
426
428 abstract string getType();
429
431
437protected:
438 abstract object getImpl(bool connect = True, *hash<auto> rtopts);
439public:
440};
441}; // ConnectionProvider namespace
abstract base class for connections
Definition: AbstractConnection.qc.dox.h:34
string desc
connection description
Definition: AbstractConnection.qc.dox.h:41
bool locked
locked/unlocked flag
Definition: AbstractConnection.qc.dox.h:83
string getName()
Returns the connection name.
pingImpl()
performs the internal ping
hash< ConnectionInfo > getInfo(*hash< auto > opts)
returns a ConnectionInfo hash of information about the connection
hash< ConnectionInfo > getInfo(bool with_password=False)
returns a ConnectionInfo hash of information about the connection
bool hasDataProvider()
returns True if the connection returns a data provider with the getDataProvider() method
bool children_can_support_transactions
if the data provider or any of its children support transaction management
Definition: AbstractConnection.qc.dox.h:104
*hash< auto > opts
connection options
Definition: AbstractConnection.qc.dox.h:53
object getPollImpl()
Returns an unconnected object for a non-blocking poll operation.
object get(bool connect=True, *hash< auto > rtopts)
returns the underlying connection object
auto getTagEx(string tag)
returns the value of the given tag or throws an exception if the tag is not set with a value
hash< auto > internal_info
internal tags
Definition: AbstractConnection.qc.dox.h:107
*hash< auto > orig_opts
original connection options
Definition: AbstractConnection.qc.dox.h:50
*hash< auto > getRuntimeOptions()
returns runtime options
string url
connection URL (potentially with password info)
Definition: AbstractConnection.qc.dox.h:44
bool children_can_support_messages
if the data provider or any of its children support messages
Definition: AbstractConnection.qc.dox.h:101
hash< auto > getExtendedInfo(*hash< auto > opts)
Returns connection info plus any extended information returned by the connection.
bool monitor
monitoring flag
Definition: AbstractConnection.qc.dox.h:68
string safe_url
"safe" URL (password information removed)
Definition: AbstractConnection.qc.dox.h:47
setChildCapabilities()
Override to set child data provider capabilities once per child class.
Qore::AbstractPollOperation startPollConnect()
Called to start the connection polling operation.
hash< auto > tags
connection tags; user-defined key-value pairs
Definition: AbstractConnection.qc.dox.h:89
string getSafeUrl(hash< auto > urlh)
creates a "safe" URL string with password information removed
bool enabled
enabled/disabled indicator flag
Definition: AbstractConnection.qc.dox.h:80
AbstractDataProvider getDataProvider()
returns a data provider object for this connection, if supported
date last_check
date/time of last check/ping
Definition: AbstractConnection.qc.dox.h:59
bool up
connection status flag; set by monitoring or explicit pings/connections
Definition: AbstractConnection.qc.dox.h:65
hash< auto > validateOptions(hash< auto > options)
performs options validation in the constructor
string getDescription()
Returns the connection description.
hash< ConnectionSchemeInfo > getConnectionSchemeInfo()
Returns a default ConnectionSchemeInfo hash.
hash< PingInfo > pingIntern(hash< PingInfo > rv)
performs the ping by executing get(); returns a PingInfo hash
bool supportsPollingApi()
returns True if the connection supports the Qore Socket-based polling API
bool debug_data
debug data flag; to be used an an indication for a higher-level implementation
Definition: AbstractConnection.qc.dox.h:86
constructorInit(string name, string description, string url, hash< auto > attributes, hash< auto > options)
Common construtor implementation.
string name
connection name
Definition: AbstractConnection.qc.dox.h:38
hash< UrlInfo > parseUrl(string url)
Parse the URL to a hash.
hash< ConfigInfo > getConfigHash()
returns a ConfigInfo hash of static configuration information about the connection
*hash< auto > getOptions()
returns static / initialization options
hash< auto > getTags()
returns all tags associated with the connection
abstract object getImpl(bool connect=True, *hash< auto > rtopts)
this method must return the connection object corresponding to the object's configuration
deprecated constructor(string name, string desc, string url, bool monitor, *hash opts, hash urlh, *string safe_url, *bool enabled)
creates the AbstractConnection object
Definition: AbstractConnection.qc.dox.h:120
handlePingFailed(date delta, hash< ExceptionInfo > ex)
Handles a failed ping operation on the connection.
string getSafeUrl()
Returns the connection safe URL (without password info)
string getUrl()
Returns the connection URL.
*hash< auto > getDefaultOptions()
returns default options
constructor(string name, string description, string url, hash< auto > attributes={}, hash< auto > options={})
creates the AbstractConnection object
auto getTag(string tag)
returns the value of the given tag or NOTHING if not present
string status
status string; in case of a connection error this string will be the error string
Definition: AbstractConnection.qc.dox.h:62
parseTextOptions()
this method is called when parsing connection file definitions from text files when loading into the ...
date updated
date/time of last update
Definition: AbstractConnection.qc.dox.h:71
bool children_can_support_apis
if the data provider or any of its children support requests (APIs)
Definition: AbstractConnection.qc.dox.h:92
static *code post_processing
optional code for default post-processing of objects created by getImpl(); must take the connection o...
Definition: AbstractConnection.qc.dox.h:77
bool loopback
set to True for loopback connections
Definition: AbstractConnection.qc.dox.h:74
bool children_can_support_observers
if the data provider or any of its children support events
Definition: AbstractConnection.qc.dox.h:98
bool children_can_support_records
if the data provider or any of its children support records
Definition: AbstractConnection.qc.dox.h:95
abstract string getType()
returns the string type name for the connection object
handlePingFailed(date delta, string err)
Handles a failed ping operation on the connection.
hash< auto > urlh
broken down URL hash (as returned by Qore::parse_url())
Definition: AbstractConnection.qc.dox.h:56
hash< PingInfo > ping(bool throw_exception=False)
returns a hash with the results of the ping operation
*hash< auto > getRealOptions()
returns options for saving the connection's configuration information
handlePingSuccess(date delta)
Handles a successful ping operation on the connection.
The ConnectionProvider namespace.
Definition: AbstractConnection.qc.dox.h:28