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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 "QueueSettings.h"
+#include "QueueFlowLimit.h"
+#include "MessageGroupManager.h"
+#include "qpid/types/Variant.h"
+#include "qpid/framing/reply_exceptions.h"
+#include "qpid/log/Statement.h"
+#include "qpid/amqp_0_10/Codecs.h"
+
+
+namespace qpid {
+namespace broker {
+
+namespace {
+const std::string MAX_COUNT("qpid.max_count");
+const std::string MAX_SIZE("qpid.max_size");
+const std::string POLICY_TYPE("qpid.policy_type");
+const std::string POLICY_TYPE_REJECT("reject");
+const std::string POLICY_TYPE_RING("ring");
+const std::string NO_LOCAL("no-local");
+const std::string TRACE_ID("qpid.trace.id");
+const std::string TRACE_EXCLUDES("qpid.trace.exclude");
+const std::string LVQ_KEY("qpid.last_value_queue_key");
+const std::string AUTO_DELETE_TIMEOUT("qpid.auto_delete_timeout");
+const std::string ALERT_REPEAT_GAP("qpid.alert_repeat_gap");
+const std::string ALERT_COUNT("qpid.alert_count");
+const std::string ALERT_SIZE("qpid.alert_size");
+const std::string PRIORITIES("qpid.priorities");
+const std::string FAIRSHARE("qpid.fairshare");
+const std::string FAIRSHARE_ALIAS("x-qpid-fairshare");
+
+const std::string LVQ_LEGACY("qpid.last_value_queue");
+const std::string LVQ_LEGACY_KEY("qpid.LVQ_key");
+const std::string LVQ_LEGACY_NOBROWSE("qpid.last_value_queue_no_browse");
+
+
+bool handleFairshareSetting(const std::string& basename, const std::string& key, const qpid::types::Variant& value, QueueSettings& settings)
+{
+ if (key.find(basename) == 0) {
+ qpid::types::Variant index(key.substr(basename.size()+1));
+ settings.fairshare[index] = value;
+ return true;
+ } else {
+ return false;
+ }
+}
+bool isFairshareSetting(const std::string& key, const qpid::types::Variant& value, QueueSettings& settings)
+{
+ return handleFairshareSetting(FAIRSHARE, key, value, settings) || handleFairshareSetting(FAIRSHARE_ALIAS, key, value, settings);
+}
+}
+
+const QueueSettings::Aliases QueueSettings::aliases;
+
+QueueSettings::QueueSettings(bool d, bool a) :
+ durable(d),
+ autodelete(a),
+ priorities(0),
+ defaultFairshare(0),
+ shareGroups(false),
+ addTimestamp(false),
+ dropMessagesAtLimit(false),
+ noLocal(false),
+ autoDeleteDelay(0),
+ alertRepeatInterval(60)
+{}
+
+bool QueueSettings::handle(const std::string& key, const qpid::types::Variant& value)
+{
+ if (key == MAX_COUNT && value.asUint32() > 0) {
+ maxDepth.setCount(value);
+ return true;
+ } else if (key == MAX_SIZE && value.asUint64() > 0) {
+ maxDepth.setSize(value);
+ return true;
+ } else if (key == POLICY_TYPE) {
+ if (value.getString() == POLICY_TYPE_RING) {
+ dropMessagesAtLimit = true;
+ return true;
+ } else if (value.getString() == POLICY_TYPE_REJECT) {
+ //do nothing, thats the default
+ return true;
+ } else {
+ QPID_LOG(warning, "Unrecognised policy option: " << value);
+ return false;
+ }
+ } else if (key == NO_LOCAL) {
+ noLocal = value;
+ return true;
+ } else if (key == TRACE_ID) {
+ traceId = value.asString();
+ return true;
+ } else if (key == TRACE_EXCLUDES) {
+ traceExcludes = value.asString();
+ return true;
+ } else if (key == PRIORITIES) {
+ priorities = value;
+ return true;
+ } else if (key == FAIRSHARE) {
+ defaultFairshare = value;
+ return true;
+ } else if (isFairshareSetting(key, value, *this)) {
+ return true;
+ } else if (key == MessageGroupManager::qpidMessageGroupKey) {
+ groupKey = value.asString();
+ return true;
+ } else if (key == MessageGroupManager::qpidSharedGroup) {
+ shareGroups = value;
+ return true;
+ } else if (key == MessageGroupManager::qpidMessageGroupTimestamp) {
+ addTimestamp = value;
+ return true;
+ } else if (key == LVQ_KEY) {
+ lvqKey = value.asString();
+ return true;
+ } else if (key == LVQ_LEGACY) {
+ if (lvqKey.empty()) lvqKey = LVQ_LEGACY_KEY;
+ return true;
+ } else if (key == LVQ_LEGACY_NOBROWSE) {
+ QPID_LOG(warning, "Ignoring 'no-browse' directive for LVQ; it is no longer necessary");
+ if (lvqKey.empty()) lvqKey = LVQ_LEGACY_KEY;
+ return true;
+ } else if (key == AUTO_DELETE_TIMEOUT) {
+ autoDeleteDelay = value;
+ return true;
+ } else if (key == QueueFlowLimit::flowStopCountKey) {
+ flowStop.setCount(value);
+ return true;
+ } else if (key == QueueFlowLimit::flowResumeCountKey) {
+ flowResume.setCount(value);
+ return true;
+ } else if (key == QueueFlowLimit::flowStopSizeKey) {
+ flowStop.setSize(value);
+ return true;
+ } else if (key == QueueFlowLimit::flowResumeSizeKey) {
+ flowResume.setSize(value);
+ return true;
+ } else if (key == ALERT_REPEAT_GAP) {
+ alertRepeatInterval = value;
+ return true;
+ } else if (key == ALERT_COUNT) {
+ alertThreshold.setCount(value);
+ return true;
+ } else if (key == ALERT_SIZE) {
+ alertThreshold.setSize(value);
+ return true;
+ } else {
+ return false;
+ }
+}
+
+void QueueSettings::validate() const
+{
+ if (lvqKey.size() && priorities > 0)
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Cannot specify " << LVQ_KEY << " and " << PRIORITIES << " for the same queue"));
+ if ((fairshare.size() || defaultFairshare) && priorities == 0)
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Cannot specify fairshare settings when queue is not enabled for priorities"));
+ if (fairshare.size() > priorities)
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Cannot have fairshare set for priority levels greater than " << priorities));
+ if (groupKey.size() && lvqKey.size())
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Cannot specify " << LVQ_KEY << " and " << MessageGroupManager::qpidMessageGroupKey << " for the same queue"));
+ if (groupKey.size() && priorities)
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Cannot specify " << PRIORITIES << " and " << MessageGroupManager::qpidMessageGroupKey << " for the same queue"));
+ if (shareGroups && groupKey.empty()) {
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Can only specify " << MessageGroupManager::qpidSharedGroup
+ << " if " << MessageGroupManager::qpidMessageGroupKey << " is set"));
+ }
+ if (addTimestamp && groupKey.empty()) {
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Can only specify " << MessageGroupManager::qpidMessageGroupTimestamp
+ << " if " << MessageGroupManager::qpidMessageGroupKey << " is set"));
+ }
+
+ // @todo: remove once "sticky" consumers are supported - see QPID-3347
+ if (!shareGroups && groupKey.size()) {
+ throw qpid::framing::InvalidArgumentException(QPID_MSG("Only shared groups are supported at present; " << MessageGroupManager::qpidSharedGroup
+ << " is required if " << MessageGroupManager::qpidMessageGroupKey << " is set"));
+ }
+}
+
+void QueueSettings::populate(const std::map<std::string, qpid::types::Variant>& inputs, std::map<std::string, qpid::types::Variant>& unused)
+{
+ original = inputs;
+ for (qpid::types::Variant::Map::const_iterator i = inputs.begin(); i != inputs.end(); ++i) {
+ Aliases::const_iterator a = aliases.find(i->first);
+ if (!handle((a != aliases.end() ? a->second : i->first), i->second)) unused.insert(*i);
+ }
+}
+void QueueSettings::populate(const qpid::framing::FieldTable& inputs, qpid::framing::FieldTable& unused)
+{
+ qpid::types::Variant::Map o;
+ qpid::amqp_0_10::translate(inputs, original);
+ populate(original, o);
+ qpid::amqp_0_10::translate(o, unused);
+}
+std::map<std::string, qpid::types::Variant> QueueSettings::asMap() const
+{
+ return original;
+}
+
+QueueSettings::Aliases::Aliases()
+{
+ insert(value_type("x-qpid-priorities", "qpid.priorities"));
+ insert(value_type("x-qpid-fairshare", "qpid.fairshare"));
+ insert(value_type("x-qpid-minimum-alert-repeat-gap", "qpid.alert_repeat_gap"));
+ insert(value_type("x-qpid-maximum-message-count", "qpid.alert_count"));
+ insert(value_type("x-qpid-maximum-message-size", "qpid.alert_size"));
+}
+
+}} // namespace qpid::broker