1 files changed, 66 insertions, 0 deletions
diff --git a/java/broker/src/main/java/org/apache/qpid/server/configuration/startup/PluginRecoverer.java b/java/broker/src/main/java/org/apache/qpid/server/configuration/startup/PluginRecoverer.java
new file mode 100644
index 0000000000..ddc4482953
--- /dev/null
+++ b/java/broker/src/main/java/org/apache/qpid/server/configuration/startup/PluginRecoverer.java
@@ -0,0 +1,66 @@
+/*
+ *
+ * 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.
+ *
+ */
+package org.apache.qpid.server.configuration.startup;
+
+import java.util.Map;
+import java.util.UUID;
+
+import org.apache.qpid.server.configuration.ConfigurationEntry;
+import org.apache.qpid.server.configuration.ConfiguredObjectRecoverer;
+import org.apache.qpid.server.configuration.IllegalConfigurationException;
+import org.apache.qpid.server.configuration.RecovererProvider;
+import org.apache.qpid.server.model.Broker;
+import org.apache.qpid.server.model.ConfiguredObject;
+import org.apache.qpid.server.plugin.PluginFactory;
+import org.apache.qpid.server.plugin.QpidServiceLoader;
+
+public class PluginRecoverer implements ConfiguredObjectRecoverer<ConfiguredObject>
+{
+    private QpidServiceLoader<PluginFactory> _serviceLoader;
+
+    public PluginRecoverer(QpidServiceLoader<PluginFactory> serviceLoader)
+    {
+        _serviceLoader = serviceLoader;
+    }
+
+    @Override
+    public ConfiguredObject create(RecovererProvider recovererProvider, ConfigurationEntry configurationEntry, ConfiguredObject... parents)
+    {
+        Broker broker = RecovererHelper.verifyOnlyBrokerIsParent(parents);
+        Map<String, Object> attributes = configurationEntry.getAttributes();
+        Iterable<PluginFactory> factories = _serviceLoader.instancesOf(PluginFactory.class);
+        for (PluginFactory pluginFactory : factories)
+        {
+            UUID configurationId = configurationEntry.getId();
+            ConfiguredObject pluginObject = pluginFactory.createInstance(configurationId, attributes, broker);
+            if (pluginObject != null)
+            {
+                UUID pluginId = pluginObject.getId();
+                if (!configurationId.equals(pluginId))
+                {
+                    throw new IllegalStateException("Plugin object id '" + pluginId + "' does not equal expected id " + configurationId);
+                }
+                return pluginObject;
+            }
+        }
+        throw new IllegalConfigurationException("Cannot create a plugin object for " + attributes + " with factories " + factories);
+    }
+}