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authorRajith Muditha Attapattu <rajith@apache.org>2011-05-27 15:44:23 +0000
committerRajith Muditha Attapattu <rajith@apache.org>2011-05-27 15:44:23 +0000
commit66765100f4257159622cefe57bed50125a5ad017 (patch)
treea88ee23bb194eb91f0ebb2d9b23ff423e3ea8e37 /cpp/src/qpid/broker/ThresholdAlerts.cpp
parent1aeaa7b16e5ce54f10c901d75c4d40f9f88b9db6 (diff)
parent88b98b2f4152ef59a671fad55a0d08338b6b78ca (diff)
downloadqpid-python-rajith_jms_client.tar.gz
Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client
git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/broker/ThresholdAlerts.cpp')
-rw-r--r--cpp/src/qpid/broker/ThresholdAlerts.cpp191
1 files changed, 0 insertions, 191 deletions
diff --git a/cpp/src/qpid/broker/ThresholdAlerts.cpp b/cpp/src/qpid/broker/ThresholdAlerts.cpp
deleted file mode 100644
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--- a/cpp/src/qpid/broker/ThresholdAlerts.cpp
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-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-#include "qpid/broker/ThresholdAlerts.h"
-#include "qpid/broker/Queue.h"
-#include "qpid/broker/QueuedMessage.h"
-#include "qpid/amqp_0_10/Codecs.h"
-#include "qpid/log/Statement.h"
-#include "qpid/management/ManagementAgent.h"
-#include "qmf/org/apache/qpid/broker/EventQueueThresholdExceeded.h"
-
-namespace qpid {
-namespace broker {
-namespace {
-const qmf::org::apache::qpid::broker::EventQueueThresholdExceeded EVENT("dummy", 0, 0);
-bool isQMFv2(const boost::intrusive_ptr<Message> message)
-{
- const qpid::framing::MessageProperties* props = message->getProperties<qpid::framing::MessageProperties>();
- return props && props->getAppId() == "qmf2";
-}
-
-bool isThresholdEvent(const boost::intrusive_ptr<Message> message)
-{
- if (message->getIsManagementMessage()) {
- //is this a qmf event? if so is it a threshold event?
- if (isQMFv2(message)) {
- const qpid::framing::FieldTable* headers = message->getApplicationHeaders();
- if (headers && headers->getAsString("qmf.content") == "_event") {
- //decode as list
- std::string content = message->getFrames().getContent();
- qpid::types::Variant::List list;
- qpid::amqp_0_10::ListCodec::decode(content, list);
- if (list.empty() || list.front().getType() != qpid::types::VAR_MAP) return false;
- qpid::types::Variant::Map map = list.front().asMap();
- try {
- std::string eventName = map["_schema_id"].asMap()["_class_name"].asString();
- return eventName == EVENT.getEventName();
- } catch (const std::exception& e) {
- QPID_LOG(error, "Error checking for recursive threshold alert: " << e.what());
- }
- }
- } else {
- std::string content = message->getFrames().getContent();
- qpid::framing::Buffer buffer(const_cast<char*>(content.data()), content.size());
- if (buffer.getOctet() == 'A' && buffer.getOctet() == 'M' && buffer.getOctet() == '2' && buffer.getOctet() == 'e') {
- buffer.getLong();//sequence
- std::string packageName;
- buffer.getShortString(packageName);
- if (packageName != EVENT.getPackageName()) return false;
- std::string eventName;
- buffer.getShortString(eventName);
- return eventName == EVENT.getEventName();
- }
- }
- }
- return false;
-}
-}
-
-ThresholdAlerts::ThresholdAlerts(const std::string& n,
- qpid::management::ManagementAgent& a,
- const uint32_t ct,
- const uint64_t st,
- const long repeat)
- : name(n), agent(a), countThreshold(ct), sizeThreshold(st),
- repeatInterval(repeat ? repeat*qpid::sys::TIME_SEC : 0),
- count(0), size(0), lastAlert(qpid::sys::EPOCH) {}
-
-void ThresholdAlerts::enqueued(const QueuedMessage& m)
-{
- size += m.payload->contentSize();
- ++count;
- if ((countThreshold && count >= countThreshold) || (sizeThreshold && size >= sizeThreshold)) {
- if ((repeatInterval == 0 && lastAlert == qpid::sys::EPOCH)
- || qpid::sys::Duration(lastAlert, qpid::sys::now()) > repeatInterval) {
- //Note: Raising an event may result in messages being
- //enqueued on queues; it may even be that this event
- //causes a message to be enqueued on the queue we are
- //tracking, and so we need to avoid recursing
- if (isThresholdEvent(m.payload)) return;
- lastAlert = qpid::sys::now();
- agent.raiseEvent(qmf::org::apache::qpid::broker::EventQueueThresholdExceeded(name, count, size));
- QPID_LOG(info, "Threshold event triggered for " << name << ", count=" << count << ", size=" << size);
- }
- }
-}
-
-void ThresholdAlerts::dequeued(const QueuedMessage& m)
-{
- size -= m.payload->contentSize();
- --count;
- if ((countThreshold && count < countThreshold) || (sizeThreshold && size < sizeThreshold)) {
- lastAlert = qpid::sys::EPOCH;
- }
-}
-
-
-
-void ThresholdAlerts::observe(Queue& queue, qpid::management::ManagementAgent& agent,
- const uint64_t countThreshold,
- const uint64_t sizeThreshold,
- const long repeatInterval)
-{
- if (countThreshold || sizeThreshold) {
- boost::shared_ptr<QueueObserver> observer(
- new ThresholdAlerts(queue.getName(), agent, countThreshold, sizeThreshold, repeatInterval)
- );
- queue.addObserver(observer);
- }
-}
-
-void ThresholdAlerts::observe(Queue& queue, qpid::management::ManagementAgent& agent,
- const qpid::framing::FieldTable& settings, uint16_t limitRatio)
-
-{
- qpid::types::Variant::Map map;
- qpid::amqp_0_10::translate(settings, map);
- observe(queue, agent, map, limitRatio);
-}
-
-template <class T>
-class Option
-{
- public:
- Option(const std::string& name, T d) : defaultValue(d) { names.push_back(name); }
- void addAlias(const std::string& name) { names.push_back(name); }
- T get(const qpid::types::Variant::Map& settings) const
- {
- T value(defaultValue);
- for (std::vector<std::string>::const_iterator i = names.begin(); i != names.end(); ++i) {
- if (get(settings, *i, value)) break;
- }
- return value;
- }
- private:
- std::vector<std::string> names;
- T defaultValue;
-
- bool get(const qpid::types::Variant::Map& settings, const std::string& name, T& value) const
- {
- qpid::types::Variant::Map::const_iterator i = settings.find(name);
- if (i != settings.end()) {
- try {
- value = (T) i->second;
- } catch (const qpid::types::InvalidConversion&) {
- QPID_LOG(warning, "Bad value for" << name << ": " << i->second);
- }
- return true;
- } else {
- return false;
- }
- }
-};
-
-void ThresholdAlerts::observe(Queue& queue, qpid::management::ManagementAgent& agent,
- const qpid::types::Variant::Map& settings, uint16_t limitRatio)
-
-{
- //Note: aliases are keys defined by java broker
- Option<int64_t> repeatInterval("qpid.alert_repeat_gap", 60);
- repeatInterval.addAlias("x-qpid-minimum-alert-repeat-gap");
-
- //If no explicit threshold settings were given use specified
- //percentage of any limit from the policy.
- const QueuePolicy* policy = queue.getPolicy();
- Option<uint32_t> countThreshold("qpid.alert_count", (uint32_t) (policy && limitRatio ? (policy->getMaxCount()*limitRatio/100) : 0));
- countThreshold.addAlias("x-qpid-maximum-message-count");
- Option<uint64_t> sizeThreshold("qpid.alert_size", (uint64_t) (policy && limitRatio ? (policy->getMaxSize()*limitRatio/100) : 0));
- sizeThreshold.addAlias("x-qpid-maximum-message-size");
-
- observe(queue, agent, countThreshold.get(settings), sizeThreshold.get(settings), repeatInterval.get(settings));
-}
-
-}}