Initial revision
Change-Id: I1460c4eff5aff48885523b350273c602f137bca1
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3f04530
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+/buck-out
+/target
+/.classpath
+/.project
+/.settings/org.maven.ide.eclipse.prefs
+/.settings/org.eclipse.m2e.core.prefs
+/.idea
diff --git a/BUCK b/BUCK
new file mode 100644
index 0000000..cd52cd5
--- /dev/null
+++ b/BUCK
@@ -0,0 +1,15 @@
+gerrit_plugin(
+ name = 'javamelody',
+ srcs = glob(['src/main/java/**/*.java']),
+ resources = glob(['src/main/resources/**/*']),
+ manifest_entries = [
+ 'Gerrit-PluginName: javamelody',
+ 'Gerrit-Module: com.googlesource.gerrit.plugins.javamelody.Module',
+ 'Gerrit-HttpModule: com.googlesource.gerrit.plugins.javamelody.HttpModule',
+ ],
+ deps = [
+ '//plugins/javamelody/lib:javamelody',
+ '//plugins/javamelody/lib:jrobin',
+ ],
+)
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..11069ed
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+Unless required by applicable law or agreed to in writing, software
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diff --git a/lib/BUCK b/lib/BUCK
new file mode 100644
index 0000000..ba64a03
--- /dev/null
+++ b/lib/BUCK
@@ -0,0 +1,15 @@
+include_defs('//lib/maven.defs')
+
+maven_jar(
+ name = 'javamelody',
+ id = 'net.bull.javamelody:javamelody-core:1.48.0',
+ sha1 = '4c573306061019430a735d9d58f93639f4a0ff0b',
+ license = 'DO_NOT_DISTRIBUTE',
+)
+
+maven_jar(
+ name = 'jrobin',
+ id = 'org.jrobin:jrobin:1.5.9',
+ sha1 = 'bd9a84484c67de930fa841f23cd6a93108b05cd0',
+ license = 'DO_NOT_DISTRIBUTE',
+)
diff --git a/src/main/java/com/googlesource/gerrit/plugins/javamelody/GerritMonitoringFilter.java b/src/main/java/com/googlesource/gerrit/plugins/javamelody/GerritMonitoringFilter.java
new file mode 100644
index 0000000..8139caf
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/javamelody/GerritMonitoringFilter.java
@@ -0,0 +1,55 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed 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 com.googlesource.gerrit.plugins.javamelody;
+
+import java.io.IOException;
+
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+import net.bull.javamelody.MonitoringFilter;
+
+import com.google.gerrit.httpd.AllRequestFilter;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+@Singleton
+class GerritMonitoringFilter extends AllRequestFilter {
+ private final MonitoringFilter monitoring;
+
+ @Inject
+ GerritMonitoringFilter(MonitoringFilter monitoring) {
+ this.monitoring = monitoring;
+ }
+
+ @Override
+ public void doFilter(ServletRequest request, ServletResponse response,
+ FilterChain chain) throws IOException, ServletException {
+ monitoring.doFilter(request, response, chain);
+ }
+
+ @Override
+ public void init(FilterConfig config) throws ServletException {
+ monitoring.init(config);
+ }
+
+ @Override
+ public void destroy() {
+ monitoring.destroy();
+ }
+}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/javamelody/HttpModule.java b/src/main/java/com/googlesource/gerrit/plugins/javamelody/HttpModule.java
new file mode 100644
index 0000000..1982a9a
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/javamelody/HttpModule.java
@@ -0,0 +1,29 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed 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 com.googlesource.gerrit.plugins.javamelody;
+
+import com.google.gerrit.extensions.registration.DynamicSet;
+import com.google.gerrit.httpd.AllRequestFilter;
+import com.google.gerrit.httpd.plugins.HttpPluginModule;
+import com.google.inject.Scopes;
+
+public class HttpModule extends HttpPluginModule {
+ @Override
+ protected void configureServlets() {
+ DynamicSet.bind(binder(), AllRequestFilter.class)
+ .to(GerritMonitoringFilter.class)
+ .in(Scopes.SINGLETON);
+ }
+}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/javamelody/Module.java b/src/main/java/com/googlesource/gerrit/plugins/javamelody/Module.java
new file mode 100644
index 0000000..f6b6026
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/javamelody/Module.java
@@ -0,0 +1,28 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed 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 com.googlesource.gerrit.plugins.javamelody;
+
+import com.google.gerrit.extensions.registration.DynamicSet;
+import com.google.gerrit.extensions.webui.TopMenu;
+import com.google.inject.AbstractModule;
+
+public class Module extends AbstractModule {
+
+ @Override
+ protected void configure() {
+ DynamicSet.bind(binder(), TopMenu.class)
+ .to(MonitoringTopMenu.class);
+ }
+}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/javamelody/MonitoringTopMenu.java b/src/main/java/com/googlesource/gerrit/plugins/javamelody/MonitoringTopMenu.java
new file mode 100644
index 0000000..abad806
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/javamelody/MonitoringTopMenu.java
@@ -0,0 +1,42 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed 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 com.googlesource.gerrit.plugins.javamelody;
+
+import java.util.Collections;
+import java.util.List;
+
+import com.google.common.collect.Lists;
+import com.google.gerrit.extensions.webui.TopMenu;
+import com.google.gerrit.server.CurrentUser;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+
+public class MonitoringTopMenu implements TopMenu {
+ private final List<MenuEntry> menuEntries;
+
+ @Inject
+ public MonitoringTopMenu(Provider<CurrentUser> u) {
+ menuEntries = Lists.newArrayList();
+ if (u.get().getCapabilities().canAdministrateServer()) {
+ menuEntries.add(new MenuEntry("Monitoring", Collections
+ .singletonList(new MenuItem("JavaMelody", "monitoring"))));
+ }
+ }
+
+ @Override
+ public List<MenuEntry> getEntries() {
+ return menuEntries;
+ }
+}
diff --git a/src/main/resources/Documentation/about.md b/src/main/resources/Documentation/about.md
new file mode 100644
index 0000000..d242c6a
--- /dev/null
+++ b/src/main/resources/Documentation/about.md
@@ -0,0 +1,7 @@
+This plugin allows to monitor the Gerrit server.
+
+This plugin integrates [JavaMelody](https://code.google.com/p/javamelody) in
+Gerrit in order to retrieve live instrumentation data from Gerrit.
+
+It adds top menu item "Monitoring" that is only accessible to administratos
+to access java melody page.
diff --git a/src/main/resources/Documentation/build.md b/src/main/resources/Documentation/build.md
new file mode 100644
index 0000000..9e3e4f3
--- /dev/null
+++ b/src/main/resources/Documentation/build.md
@@ -0,0 +1,25 @@
+Build
+=====
+
+This plugin is built with Buck.
+Clone or link this plugin to the plugins directory of the Gerrit tree
+and issue the command:
+
+```
+ buck build plugins/javamelody:javamelody
+```
+
+The output is created in
+
+```
+ buck-out/gen/plugins/javamelody/javamelody.jar
+```
+
+This project can be imported into the Eclipse IDE:
+
+```
+ ./tools/eclipse/project.py
+```
+
+More information about Buck can be found in the [Gerrit
+documentation](../../../Documentation/dev-buck.html).
diff --git a/src/main/resources/Documentation/database-monitoring.md b/src/main/resources/Documentation/database-monitoring.md
new file mode 100644
index 0000000..09ec050
--- /dev/null
+++ b/src/main/resources/Documentation/database-monitoring.md
@@ -0,0 +1,70 @@
+Database-Monitoring
+===================
+
+This feature is experimental and is not supported out of the box for Gerrit
+monitoring on Jetty.
+
+Background: JavaMelody only supports JNDI DataSource in Web container (Tomcat).
+Because Gerrit instantiates its data source on its own, JavaMelody can not
+intercept it and therefore no SQL statistic reports can be gathered.
+
+To overcome that problem a data source proxy must be installed. Because the
+instantiation of the data source takes place in Gerrit core, it must be patched.
+
+Next problem: JavaMelody JARs (that creates the data source proxies) must be
+available in the bootstrap classpath for Gerrit core to load it.
+
+Last problem: we shouldn't package the plugin dependencies inside the
+plugin itself (shaded jar in Maven jargon) and in $gerrit_site/lib. We would
+need to strip it from the plugin.
+
+Cherry-pick this change and compile Gerrit:
+
+https://gerrit-review.googlesource.com/#/c/52747
+
+Add the following target to BUCK in javamelody plugin:
+
+```
+gerrit_plugin(
+ name = 'javamelody-no-deps',
+ srcs = glob(['src/main/java/**/*.java']),
+ resources = glob(['src/main/resources/**/*']),
+ manifest_entries = [
+ 'Gerrit-PluginName: javamelody',
+ 'Gerrit-Module: com.googlesource.gerrit.plugins.javamelody.Module',
+ 'Gerrit-HttpModule: com.googlesource.gerrit.plugins.javamelody.HttpModule',
+ ],
+ compile_deps = [
+ '//plugins/javamelody/lib:javamelody',
+ '//plugins/javamelody/lib:jrobin',
+ ],
+)
+```
+
+Compile the plugin without dependencies:
+
+```
+buck build plugins/javamelody:javamelody-no-deps
+```
+
+Copy the dependencies manually to $gerrit_site/libs:
+
+```
+cp
+~/.gerritcodereview/buck-cache/jrobin-1.5.9.jar-bd9a84484c67de930fa841f23cd6a93108b05cd0
+$gerrit_site/lib/jrobin.jar
+cp
+~/.gerritcodereview/buck-cache/javamelody-core-1.48.0.jar-4c573306061019430a735d9d58f93639f4a0ff0b
+$gerrit_site/lib/javamelody.jar
+
+```
+
+Deploy plugin without dependencies:
+
+```
+cp buck-out/gen/plugins/javamelody/javamelody-no-deps.jar $gerrit_site/plugins
+```
+
+Run Gerrit@Jetty and enjoy SQL statistics, a lá:
+
+http://i.imgur.com/8EyAA9u.png
