From ad3d2ca074cd3cf9c554f57c53b22f0de6abede9 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Wed, 17 Sep 2014 12:21:47 -0400
Subject: [PATCH] Merge branch 'ticket/180' into develop
---
src/main/java/com/gitblit/manager/PluginManager.java | 83 ++++++++++++++++++++++++++++++++++-------
1 files changed, 68 insertions(+), 15 deletions(-)
diff --git a/src/main/java/com/gitblit/manager/PluginManager.java b/src/main/java/com/gitblit/manager/PluginManager.java
index a0c873e..5830375 100644
--- a/src/main/java/com/gitblit/manager/PluginManager.java
+++ b/src/main/java/com/gitblit/manager/PluginManager.java
@@ -34,13 +34,15 @@
import java.util.Map;
import java.util.TreeMap;
-import javax.inject.Inject;
-
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import ro.fortsoft.pf4j.DefaultPluginFactory;
import ro.fortsoft.pf4j.DefaultPluginManager;
+import ro.fortsoft.pf4j.ExtensionFactory;
+import ro.fortsoft.pf4j.Plugin;
import ro.fortsoft.pf4j.PluginClassLoader;
+import ro.fortsoft.pf4j.PluginFactory;
import ro.fortsoft.pf4j.PluginState;
import ro.fortsoft.pf4j.PluginStateEvent;
import ro.fortsoft.pf4j.PluginStateListener;
@@ -60,6 +62,8 @@
import com.gitblit.utils.StringUtils;
import com.google.common.io.Files;
import com.google.common.io.InputSupplier;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
/**
* The plugin manager maintains the lifecycle of plugins. It is exposed as
@@ -70,13 +74,14 @@
* @author James Moger
*
*/
+@Singleton
public class PluginManager implements IPluginManager, PluginStateListener {
private final Logger logger = LoggerFactory.getLogger(getClass());
- private final DefaultPluginManager pf4j;
-
private final IRuntimeManager runtimeManager;
+
+ private DefaultPluginManager pf4j;
// timeout defaults of Maven 3.0.4 in seconds
private int connectTimeout = 20;
@@ -85,18 +90,7 @@
@Inject
public PluginManager(IRuntimeManager runtimeManager) {
- File dir = runtimeManager.getFileOrFolder(Keys.plugins.folder, "${baseFolder}/plugins");
- dir.mkdirs();
this.runtimeManager = runtimeManager;
-
- this.pf4j = new DefaultPluginManager(dir);
-
- try {
- Version systemVersion = Version.createVersion(Constants.getVersion());
- pf4j.setSystemVersion(systemVersion);
- } catch (Exception e) {
- logger.error(null, e);
- }
}
@Override
@@ -111,6 +105,28 @@
@Override
public PluginManager start() {
+ File dir = runtimeManager.getFileOrFolder(Keys.plugins.folder, "${baseFolder}/plugins");
+ dir.mkdirs();
+
+ pf4j = new DefaultPluginManager(dir) {
+
+ @Override
+ protected PluginFactory createPluginFactory() {
+ return new GuicePluginFactory();
+ }
+
+ @Override
+ protected ExtensionFactory createExtensionFactory() {
+ return new GuiceExtensionFactory();
+ }
+ };
+
+ try {
+ Version systemVersion = Version.createVersion(Constants.getVersion());
+ pf4j.setSystemVersion(systemVersion);
+ } catch (Exception e) {
+ logger.error(null, e);
+ }
pf4j.loadPlugins();
logger.debug("Starting plugins");
pf4j.startPlugins();
@@ -572,4 +588,41 @@
protected String getProxyAuthorization(URL url) {
return "";
}
+
+ /**
+ * Instantiates a plugin using pf4j but injects member fields
+ * with Guice.
+ */
+ private class GuicePluginFactory extends DefaultPluginFactory {
+
+ @Override
+ public Plugin create(PluginWrapper pluginWrapper) {
+ // use pf4j to create the plugin
+ Plugin plugin = super.create(pluginWrapper);
+
+ if (plugin != null) {
+ // allow Guice to inject member fields
+ runtimeManager.getInjector().injectMembers(plugin);
+ }
+
+ return plugin;
+ }
+ }
+
+ /**
+ * Instantiates an extension using Guice.
+ */
+ private class GuiceExtensionFactory implements ExtensionFactory {
+ @Override
+ public Object create(Class<?> extensionClass) {
+ // instantiate && inject the extension
+ logger.debug("Create instance for extension '{}'", extensionClass.getName());
+ try {
+ return runtimeManager.getInjector().getInstance(extensionClass);
+ } catch (Exception e) {
+ logger.error(e.getMessage(), e);
+ }
+ return null;
+ }
+ }
}
--
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