QPID-5165 : Change the Broker stores to use the generic ConfigurationStore implementations and remove old EntryStore implementations

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1613739 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 196 insertions, 0 deletions

diff --git a/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryConstructor.java b/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryConstructor.java
new file mode 100644
index 0000000000..38551c8cac
--- /dev/null
+++ b/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryConstructor.java
@@ -0,0 +1,32 @@
+/*
+ *
+ * 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.model;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.CLASS)
+@Target(ElementType.CONSTRUCTOR)
+public @interface SystemConfigFactoryConstructor
+{
+}
diff --git a/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryGenerator.java b/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryGenerator.java
new file mode 100644
index 0000000000..c569bc4641
--- /dev/null
+++ b/qpid/java/broker-codegen/src/main/java/org/apache/qpid/server/model/SystemConfigFactoryGenerator.java
@@ -0,0 +1,163 @@
+/*
+ *
+ * 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.model;
+
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.util.Collections;
+import java.util.Set;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.Filer;
+import javax.annotation.processing.RoundEnvironment;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+import javax.tools.JavaFileObject;
+
+import org.apache.qpid.server.License;
+
+public class SystemConfigFactoryGenerator extends AbstractProcessor
+{
+    @Override
+    public SourceVersion getSupportedSourceVersion()
+    {
+        return SourceVersion.latest();
+    }
+
+    @Override
+    public Set<String> getSupportedAnnotationTypes()
+    {
+        return Collections.singleton(SystemConfigFactoryConstructor.class.getName());
+    }
+
+    @Override
+    public boolean process(final Set<? extends TypeElement> annotations, final RoundEnvironment roundEnv)
+    {
+
+        if(roundEnv.processingOver())
+        {
+
+            return true;
+        }
+
+        Filer filer = processingEnv.getFiler();
+
+        try
+        {
+
+            for (Element e : roundEnv.getElementsAnnotatedWith(SystemConfigFactoryConstructor.class))
+            {
+                if(e.getKind() == ElementKind.CONSTRUCTOR)
+                {
+                    ExecutableElement constructorElement = (ExecutableElement) e;
+                    String factoryName = generateObjectFactory(filer, constructorElement);
+                }
+            }
+
+        }
+        catch (Exception e)
+        {
+            processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Error: " + e.getLocalizedMessage());
+        }
+
+        return true;
+    }
+
+    private String generateObjectFactory(final Filer filer, final ExecutableElement constructorElement)
+    {
+        TypeElement classElement = (TypeElement) constructorElement.getEnclosingElement();
+        String factoryName = classElement.getQualifiedName().toString() + "Factory";
+        String factorySimpleName = classElement.getSimpleName().toString() + "Factory";
+        String objectSimpleName = classElement.getSimpleName().toString();
+        processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Generating factory file for " + classElement.getQualifiedName().toString());
+
+        PackageElement packageElement = (PackageElement) classElement.getEnclosingElement();
+
+        try
+        {
+            JavaFileObject factoryFile = filer.createSourceFile(factoryName);
+            PrintWriter pw = new PrintWriter(new OutputStreamWriter(factoryFile.openOutputStream(), "UTF-8"));
+            pw.println("/*");
+            for(String headerLine : License.LICENSE)
+            {
+                pw.println(" *" + headerLine);
+            }
+            pw.println(" */");
+            pw.println();
+            pw.print("package ");
+            pw.print(packageElement.getQualifiedName());
+            pw.println(";");
+            pw.println();
+
+            pw.println("import org.apache.qpid.server.BrokerOptions;");
+            pw.println("import org.apache.qpid.server.configuration.updater.TaskExecutor;");
+            pw.println("import org.apache.qpid.server.logging.EventLogger;");
+            pw.println("import org.apache.qpid.server.logging.LogRecorder;");
+            pw.println("import org.apache.qpid.server.model.SystemConfig;");
+            pw.println("import org.apache.qpid.server.model.ConfiguredObjectTypeRegistry;");
+            pw.println();
+            pw.println("import org.apache.qpid.server.plugin.PluggableService;");
+            pw.println("import org.apache.qpid.server.plugin.SystemConfigFactory;");
+            pw.println();
+            pw.println("@PluggableService");
+            pw.println("public final class " + factorySimpleName + " implements SystemConfigFactory<"+ objectSimpleName +">");
+            pw.println("{");
+            pw.println("    public " + factorySimpleName + "()");
+            pw.println("    {");
+            pw.println("    }");
+            pw.println();
+            pw.println("    @Override");
+            pw.println("    public final String getType()");
+            pw.println("    {");
+            pw.println("        return ConfiguredObjectTypeRegistry.getType(" + objectSimpleName + ".class);");
+            pw.println("    }");
+            pw.println();
+            pw.println("    @Override");
+            pw.println("    public "+objectSimpleName+" newInstance(final TaskExecutor taskExecutor,");
+            pw.println("                       final EventLogger eventLogger,");
+            pw.println("                       final LogRecorder logRecorder,");
+            pw.println("                       final BrokerOptions brokerOptions)");
+            pw.println("    {");
+            pw.println("        return new "+objectSimpleName+"(taskExecutor, eventLogger, logRecorder, brokerOptions);");
+            pw.println("    }");
+            pw.println("}");
+
+            pw.close();
+        }
+        catch (IOException e)
+        {
+            processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
+                                                     "Failed to write factory file: "
+                                                     + factoryName
+                                                     + " - "
+                                                     + e.getLocalizedMessage());
+        }
+
+        return factoryName;
+    }
+
+}
diff --git a/qpid/java/broker-codegen/src/main/resources/META-INF/services/javax.annotation.processing.Processor b/qpid/java/broker-codegen/src/main/resources/META-INF/services/javax.annotation.processing.Processor
index 49964e3354..64440bb999 100644
--- a/qpid/java/broker-codegen/src/main/resources/META-INF/services/javax.annotation.processing.Processor
+++ b/qpid/java/broker-codegen/src/main/resources/META-INF/services/javax.annotation.processing.Processor
@@ -17,6 +17,7 @@
 # under the License.
 #
 org.apache.qpid.server.model.ConfiguredObjectFactoryGenerator
+org.apache.qpid.server.model.SystemConfigFactoryGenerator
 org.apache.qpid.server.plugin.PluggableProcessor
 org.apache.qpid.server.model.ConfiguredObjectRegistrationGenerator
 org.apache.qpid.server.model.validation.AttributeAnnotationValidator