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@@ -0,0 +1,629 @@
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+// Copyright (C) 2011 Internet Systems Consortium, Inc. ("ISC")
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+//
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+// Permission to use, copy, modify, and/or distribute this software for any
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+// purpose with or without fee is hereby granted, provided that the above
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+// copyright notice and this permission notice appear in all copies.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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+// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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+// PERFORMANCE OF THIS SOFTWARE.
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+
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+#define PY_SSIZE_T_CLEAN
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+#include <Python.h>
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+#include <structmember.h>
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+
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+#include <config.h>
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+
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+#include <log/message_dictionary.h>
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+#include <log/logger_manager.h>
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+#include <log/logger.h>
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+
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+#include <string>
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+#include <boost/bind.hpp>
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+
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+using namespace isc::log;
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+using std::string;
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+using boost::bind;
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+
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+namespace {
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+
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+// This is for testing only. The real module will have it always set as
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+// NULL and will use the global dictionary.
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+MessageDictionary* testDictionary = NULL;
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+
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+PyObject*
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+setTestDictionary(PyObject*, PyObject* args) {
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+ PyObject* enableO;
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+ // The API doesn't seem to provide conversion to bool,
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+ // so we do it little bit manually
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+ if (!PyArg_ParseTuple(args, "O", &enableO)) {
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+ return (NULL);
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+ }
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+ int enableI(PyObject_IsTrue(enableO));
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+ if (enableI == -1) {
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+ return (NULL);
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+ }
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+ bool enable(enableI != 0);
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+
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+ try {
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+ delete testDictionary;
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+ testDictionary = NULL;
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+ if (enable) {
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+ testDictionary = new MessageDictionary;
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+ }
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+ Py_RETURN_NONE;
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+}
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+
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+PyObject*
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+createMessage(PyObject*, PyObject* args) {
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+ const char* mid;
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+ const char* text;
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+ // We parse the strings
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+ if (!PyArg_ParseTuple(args, "ss", &mid, &text)) {
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+ return (NULL);
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+ }
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+ PyObject* origMid;
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+ // And extract the original representation of the message
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+ // ID, so we can return it instead of creating another instance.
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+ // This call shouldn't fail if the previous suceeded.
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+ if (!PyArg_ParseTuple(args, "Os", &origMid, &text)) {
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+ return (NULL);
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+ }
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+
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+ try {
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+ MessageDictionary* dict = testDictionary ? testDictionary :
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+ &MessageDictionary::globalDictionary();
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+
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+ // We ignore the result, they will be in some kind of dupe list
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+ // if there's a problem
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+ dict->add(mid, text);
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+
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+ // Return the ID
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+ Py_INCREF(origMid);
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+ return (origMid);
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+}
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+
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+PyObject*
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+getMessage(PyObject*, PyObject* args) {
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+ const char* mid;
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+ if (!PyArg_ParseTuple(args, "s", &mid)) {
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+ return (NULL);
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+ }
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+
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+ try {
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+ MessageDictionary* dict = testDictionary ? testDictionary :
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+ &MessageDictionary::globalDictionary();
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+
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+ const std::string& result(dict->getText(mid));
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+ if (result.empty()) {
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+ Py_RETURN_NONE;
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+ } else {
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+ return (Py_BuildValue("s", result.c_str()));
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+ }
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+}
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+
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+PyObject*
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+reset(PyObject*, PyObject*) {
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+ LoggerManager::reset();
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+ Py_RETURN_NONE;
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+}
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+
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+PyObject*
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+init(PyObject*, PyObject* args) {
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+ const char* root;
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+ const char* file(NULL);
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+ const char* severity("INFO");
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+ int dbglevel(0);
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+ if (!PyArg_ParseTuple(args, "s|siz", &root, &severity, &dbglevel, &file)) {
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+ return (NULL);
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+ }
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+
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+ try {
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+ LoggerManager::init(root, getSeverity(severity), dbglevel, file);
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+ Py_RETURN_NONE;
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+}
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+
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+PyMethodDef methods[] = {
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+ {"set_test_dictionary", setTestDictionary, METH_VARARGS,
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+ "Set or unset testing mode for message dictionary. In testing, "
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+ "the create_message and get_message functions work on different "
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+ "than the logger-global dictionary, not polluting it."},
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+ {"create_message", createMessage, METH_VARARGS,
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+ "Creates a new message in the dictionary. You shouldn't need to "
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+ "call this directly, it should be called by the generated message "
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+ "file. Returns the identifier to be used in logging. The text "
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+ "shouldn't be empty."},
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+ {"get_message", getMessage, METH_VARARGS,
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+ "Get a message. This function is for testing purposes and you don't "
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+ "need to call it. It returns None if the message does not exist."},
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+ {"reset", reset, METH_NOARGS,
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+ "Reset all logging. For testing purposes only, do not use."},
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+ {"init", init, METH_VARARGS,
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+ "Run-time initialization. You need to call this before you do any "
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+ "logging, to configure the root logger name. You may also provide "
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+ "logging severity (one of 'DEBUG', 'INFO', 'WARN', 'ERROR' or "
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+ "'FATAL'), a debug level (integer in the range 0-99) and a file name "
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+ "of a dictionary with message text translations."},
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+ {NULL, NULL, 0, NULL}
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+};
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+
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+class LoggerWrapper : public PyObject {
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+// Everything is public here, as it is accessible only inside this .cc file.
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+public:
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+ Logger *logger_;
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+};
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+
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+extern PyTypeObject logger_type;
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+
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+int
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+Logger_init(LoggerWrapper* self, PyObject* args) {
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+ const char* name;
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+ if (!PyArg_ParseTuple(args, "s", &name)) {
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+ return (-1);
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+ }
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+ try {
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+ self->logger_ = new Logger(name);
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+ return (0);
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (-1);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (-1);
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+ }
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+}
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+
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+void
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+Logger_destroy(LoggerWrapper* const self) {
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+ delete self->logger_;
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+ self->logger_ = NULL;
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+ Py_TYPE(self)->tp_free(self);
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+}
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+
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+// The isc::log doesn't contain function to convert this way
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+const char*
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+severityToText(const Severity& severity) {
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+ switch (severity) {
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+ case DEFAULT:
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+ return ("DEFAULT");
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+ case DEBUG:
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+ return ("DEBUG");
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+ case INFO:
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+ return ("INFO");
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+ case WARN:
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+ return ("WARN");
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+ case ERROR:
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+ return ("ERROR");
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+ case FATAL:
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+ return ("FATAL");
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+ default:
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+ return (NULL);
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+ }
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+}
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+
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+PyObject*
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+Logger_getEffectiveSeverity(LoggerWrapper* self, PyObject*) {
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+ try {
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+ return (Py_BuildValue("s",
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+ severityToText(
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+ self->logger_->getEffectiveSeverity())));
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+}
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+
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+PyObject*
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+Logger_getEffectiveDebugLevel(LoggerWrapper* self, PyObject*) {
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+ try {
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+ return (Py_BuildValue("i", self->logger_->getEffectiveDebugLevel()));
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+}
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+
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+PyObject*
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+Logger_setSeverity(LoggerWrapper* self, PyObject* args) {
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+ const char* severity;
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+ int dbgLevel = 0;
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+ if (!PyArg_ParseTuple(args, "z|i", &severity, &dbgLevel)) {
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+ return (NULL);
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+ }
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+ try {
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+ self->logger_->setSeverity((severity == NULL) ? DEFAULT :
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+ getSeverity(severity), dbgLevel);
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+ Py_RETURN_NONE;
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+}
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+
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+template<class FPtr> // Who should remember the pointer-to-method syntax
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+PyObject*
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+Logger_isLevelEnabled(LoggerWrapper* self, FPtr function) {
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+ try {
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+ if ((self->logger_->*function)()) {
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+ Py_RETURN_TRUE;
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+ } else {
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+ Py_RETURN_FALSE;
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+ }
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+}
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+
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+PyObject*
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+Logger_isInfoEnabled(LoggerWrapper* self, PyObject*) {
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+ return (Logger_isLevelEnabled(self, &Logger::isInfoEnabled));
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+}
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+
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+PyObject*
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+Logger_isWarnEnabled(LoggerWrapper* self, PyObject*) {
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+ return (Logger_isLevelEnabled(self, &Logger::isWarnEnabled));
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+}
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+
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+PyObject*
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+Logger_isErrorEnabled(LoggerWrapper* self, PyObject*) {
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+ return (Logger_isLevelEnabled(self, &Logger::isErrorEnabled));
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+}
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+
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+PyObject*
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+Logger_isFatalEnabled(LoggerWrapper* self, PyObject*) {
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+ return (Logger_isLevelEnabled(self, &Logger::isFatalEnabled));
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+}
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+
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+PyObject*
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+Logger_isDebugEnabled(LoggerWrapper* self, PyObject* args) {
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+ int level = MIN_DEBUG_LEVEL;
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+ if (!PyArg_ParseTuple(args, "|i", &level)) {
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+ return (NULL);
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+ }
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+
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+ try {
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+ if (self->logger_->isDebugEnabled(level)) {
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+ Py_RETURN_TRUE;
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+ } else {
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+ Py_RETURN_FALSE;
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+ }
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+ }
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+ catch (const std::exception& e) {
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+ PyErr_SetString(PyExc_RuntimeError, e.what());
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+ return (NULL);
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+ }
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+ catch (...) {
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+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
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+ return (NULL);
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+ }
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+}
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+
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+// To propagate python exceptions trough our code
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+class InternalError {};
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+
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+string
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+objectToStr(PyObject* object, bool convert) {
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+ PyObject* cleanup(NULL);
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+ if (convert) {
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+ object = cleanup = PyObject_Str(object);
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+ if (object == NULL) {
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+ throw InternalError();
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+ }
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+ }
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+ const char* value;
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+ PyObject* tuple(Py_BuildValue("(O)", object));
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+ if (tuple == NULL) {
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+ if (cleanup != NULL) {
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+ Py_DECREF(cleanup);
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+ }
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+ throw InternalError();
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+ }
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+
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+ if (!PyArg_ParseTuple(tuple, "s", &value)) {
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+ Py_DECREF(tuple);
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+ if (cleanup != NULL) {
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+ Py_DECREF(cleanup);
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+ }
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+ throw InternalError();
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+ }
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+ string result(value);
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+ Py_DECREF(tuple);
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+ if (cleanup != NULL) {
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+ Py_DECREF(cleanup);
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+ }
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+ return (result);
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+}
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+
|
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+// Generic function to output the logging message. Called by the real functions.
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+template<class Function>
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+PyObject*
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+Logger_performOutput(Function function, PyObject* args, bool dbgLevel) {
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+ try {
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+ Py_ssize_t number(PyObject_Length(args));
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+ if (number < 0) {
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+ return (NULL);
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+ }
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+
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+ // Which argument is the first to format?
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+ size_t start(1);
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+ if (dbgLevel) {
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+ start ++;
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+ }
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+
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+ if (number < start) {
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+ return (PyErr_Format(PyExc_TypeError, "Too few arguments to "
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+ "logging call, at least %zu needed and %zd "
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+ "given", start, number));
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+ }
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+
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+ // Extract the fixed arguments
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+ PyObject *midO(PySequence_GetItem(args, start - 1));
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+ if (midO == NULL) {
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+ return (NULL);
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+ }
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+ string mid(objectToStr(midO, false));
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+ long dbg(0);
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+ if (dbgLevel) {
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+ PyObject *dbgO(PySequence_GetItem(args, 0));
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+ if (dbgO == NULL) {
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+ return (NULL);
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+ }
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+ dbg = PyLong_AsLong(dbgO);
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+ if (PyErr_Occurred()) {
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+ return (NULL);
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+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // We create the logging message right now. If we fail to convert a
|
|
|
+ // parameter to string, at least the part that we already did will
|
|
|
+ // be output
|
|
|
+ Logger::Formatter formatter(function(dbg, mid.c_str()));
|
|
|
+
|
|
|
+ // Now process the rest of parameters, convert each to string and put
|
|
|
+ // into the formatter. It will print itself in the end.
|
|
|
+ for (size_t i(start); i < number; ++ i) {
|
|
|
+ PyObject* param(PySequence_GetItem(args, i));
|
|
|
+ if (param == NULL) {
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+ formatter = formatter.arg(objectToStr(param, true));
|
|
|
+ }
|
|
|
+ Py_RETURN_NONE;
|
|
|
+ }
|
|
|
+ catch (const InternalError&) {
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+ catch (const std::exception& e) {
|
|
|
+ PyErr_SetString(PyExc_RuntimeError, e.what());
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+ catch (...) {
|
|
|
+ PyErr_SetString(PyExc_RuntimeError, "Unknown C++ exception");
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// Now map the functions into the performOutput. I wish C++ could do
|
|
|
+// functional programming.
|
|
|
+PyObject*
|
|
|
+Logger_debug(LoggerWrapper* self, PyObject* args) {
|
|
|
+ return (Logger_performOutput(bind(&Logger::debug, self->logger_, _1, _2),
|
|
|
+ args, true));
|
|
|
+}
|
|
|
+
|
|
|
+PyObject*
|
|
|
+Logger_info(LoggerWrapper* self, PyObject* args) {
|
|
|
+ return (Logger_performOutput(bind(&Logger::info, self->logger_, _2),
|
|
|
+ args, false));
|
|
|
+}
|
|
|
+
|
|
|
+PyObject*
|
|
|
+Logger_warn(LoggerWrapper* self, PyObject* args) {
|
|
|
+ return (Logger_performOutput(bind(&Logger::warn, self->logger_, _2),
|
|
|
+ args, false));
|
|
|
+}
|
|
|
+
|
|
|
+PyObject*
|
|
|
+Logger_error(LoggerWrapper* self, PyObject* args) {
|
|
|
+ return (Logger_performOutput(bind(&Logger::error, self->logger_, _2),
|
|
|
+ args, false));
|
|
|
+}
|
|
|
+
|
|
|
+PyObject*
|
|
|
+Logger_fatal(LoggerWrapper* self, PyObject* args) {
|
|
|
+ return (Logger_performOutput(bind(&Logger::fatal, self->logger_, _2),
|
|
|
+ args, false));
|
|
|
+}
|
|
|
+
|
|
|
+PyMethodDef loggerMethods[] = {
|
|
|
+ { "get_effective_severity",
|
|
|
+ reinterpret_cast<PyCFunction>(Logger_getEffectiveSeverity),
|
|
|
+ METH_NOARGS, "Returns the effective logging severity as string" },
|
|
|
+ { "get_effective_debug_level",
|
|
|
+ reinterpret_cast<PyCFunction>(Logger_getEffectiveDebugLevel),
|
|
|
+ METH_NOARGS, "Returns the current debug level." },
|
|
|
+ { "set_severity",
|
|
|
+ reinterpret_cast<PyCFunction>(Logger_setSeverity), METH_VARARGS,
|
|
|
+ "Sets the severity of a logger. The parameters are severity as a "
|
|
|
+ "string and, optionally, a debug level (integer in range 0-99). "
|
|
|
+ "The severity may be NULL, in which case an inherited value is taken."
|
|
|
+ },
|
|
|
+ { "is_debug_enabled", reinterpret_cast<PyCFunction>(Logger_isDebugEnabled),
|
|
|
+ METH_VARARGS, "Returns if the logger would log debug message now. "
|
|
|
+ "You can provide a desired debug level." },
|
|
|
+ { "is_info_enabled", reinterpret_cast<PyCFunction>(Logger_isInfoEnabled),
|
|
|
+ METH_NOARGS, "Returns if the logger would log info message now." },
|
|
|
+ { "is_warn_enabled", reinterpret_cast<PyCFunction>(Logger_isWarnEnabled),
|
|
|
+ METH_NOARGS, "Returns if the logger would log warn message now." },
|
|
|
+ { "is_error_enabled", reinterpret_cast<PyCFunction>(Logger_isErrorEnabled),
|
|
|
+ METH_NOARGS, "Returns if the logger would log error message now." },
|
|
|
+ { "is_fatal_enabled", reinterpret_cast<PyCFunction>(Logger_isFatalEnabled),
|
|
|
+ METH_NOARGS, "Returns if the logger would log fatal message now." },
|
|
|
+ { "debug", reinterpret_cast<PyCFunction>(Logger_debug), METH_VARARGS,
|
|
|
+ "Logs a debug-severity message. It takes the debug level, message ID "
|
|
|
+ "and any number of stringifiable arguments to the message." },
|
|
|
+ { "info", reinterpret_cast<PyCFunction>(Logger_info), METH_VARARGS,
|
|
|
+ "Logs a info-severity message. It taskes the message ID and any "
|
|
|
+ "number of stringifiable arguments to the message." },
|
|
|
+ { "warn", reinterpret_cast<PyCFunction>(Logger_warn), METH_VARARGS,
|
|
|
+ "Logs a warn-severity message. It taskes the message ID and any "
|
|
|
+ "number of stringifiable arguments to the message." },
|
|
|
+ { "error", reinterpret_cast<PyCFunction>(Logger_error), METH_VARARGS,
|
|
|
+ "Logs a error-severity message. It taskes the message ID and any "
|
|
|
+ "number of stringifiable arguments to the message." },
|
|
|
+ { "fatal", reinterpret_cast<PyCFunction>(Logger_fatal), METH_VARARGS,
|
|
|
+ "Logs a fatal-severity message. It taskes the message ID and any "
|
|
|
+ "number of stringifiable arguments to the message." },
|
|
|
+ { NULL, NULL, 0, NULL }
|
|
|
+};
|
|
|
+
|
|
|
+PyTypeObject logger_type = {
|
|
|
+ PyVarObject_HEAD_INIT(NULL, 0)
|
|
|
+ "isc.log.Logger",
|
|
|
+ sizeof(LoggerWrapper), // tp_basicsize
|
|
|
+ 0, // tp_itemsize
|
|
|
+ reinterpret_cast<destructor>(Logger_destroy), // tp_dealloc
|
|
|
+ NULL, // tp_print
|
|
|
+ NULL, // tp_getattr
|
|
|
+ NULL, // tp_setattr
|
|
|
+ NULL, // tp_reserved
|
|
|
+ NULL, // tp_repr
|
|
|
+ NULL, // tp_as_number
|
|
|
+ NULL, // tp_as_sequence
|
|
|
+ NULL, // tp_as_mapping
|
|
|
+ NULL, // tp_hash
|
|
|
+ NULL, // tp_call
|
|
|
+ NULL, // tp_str
|
|
|
+ NULL, // tp_getattro
|
|
|
+ NULL, // tp_setattro
|
|
|
+ NULL, // tp_as_buffer
|
|
|
+ Py_TPFLAGS_DEFAULT, // tp_flags
|
|
|
+ "Wrapper around the C++ isc::log::Logger class."
|
|
|
+ "It is not complete, but everything important should be here.",
|
|
|
+ NULL, // tp_traverse
|
|
|
+ NULL, // tp_clear
|
|
|
+ NULL, // tp_richcompare
|
|
|
+ 0, // tp_weaklistoffset
|
|
|
+ NULL, // tp_iter
|
|
|
+ NULL, // tp_iternext
|
|
|
+ loggerMethods, // tp_methods
|
|
|
+ NULL, // tp_members
|
|
|
+ NULL, // tp_getset
|
|
|
+ NULL, // tp_base
|
|
|
+ NULL, // tp_dict
|
|
|
+ NULL, // tp_descr_get
|
|
|
+ NULL, // tp_descr_set
|
|
|
+ 0, // tp_dictoffset
|
|
|
+ reinterpret_cast<initproc>(Logger_init), // tp_init
|
|
|
+ NULL, // tp_alloc
|
|
|
+ PyType_GenericNew, // tp_new
|
|
|
+ NULL, // tp_free
|
|
|
+ NULL, // tp_is_gc
|
|
|
+ NULL, // tp_bases
|
|
|
+ NULL, // tp_mro
|
|
|
+ NULL, // tp_cache
|
|
|
+ NULL, // tp_subclasses
|
|
|
+ NULL, // tp_weaklist
|
|
|
+ NULL, // tp_del
|
|
|
+ 0 // tp_version_tag
|
|
|
+};
|
|
|
+
|
|
|
+PyModuleDef iscLog = {
|
|
|
+ { PyObject_HEAD_INIT(NULL) NULL, 0, NULL},
|
|
|
+ "log",
|
|
|
+ "Python bindings for the classes in the isc::log namespace.\n\n"
|
|
|
+ "These bindings are close match to the C++ API, but they are not complete "
|
|
|
+ "(some parts are not needed) and some are done in more python-like ways.",
|
|
|
+ -1,
|
|
|
+ methods,
|
|
|
+ NULL,
|
|
|
+ NULL,
|
|
|
+ NULL,
|
|
|
+ NULL
|
|
|
+};
|
|
|
+
|
|
|
+} // end anonymous namespace
|
|
|
+
|
|
|
+PyMODINIT_FUNC
|
|
|
+PyInit_log(void) {
|
|
|
+ PyObject* mod = PyModule_Create(&iscLog);
|
|
|
+ if (mod == NULL) {
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (PyType_Ready(&logger_type) < 0) {
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (PyModule_AddObject(mod, "Logger",
|
|
|
+ static_cast<PyObject*>(static_cast<void*>(
|
|
|
+ &logger_type))) < 0) {
|
|
|
+ return (NULL);
|
|
|
+ }
|
|
|
+ Py_INCREF(&logger_type);
|
|
|
+
|
|
|
+ return (mod);
|
|
|
+}
|
Michal 'vorner' Vaner