Add http request filter extension point

To allow for integration of 3rd party server monitoring solutions,
Gitblit needs to expose an extension point for collecting http data.

1 files changed, 49 insertions, 0 deletions

diff --git a/src/main/java/com/gitblit/extensions/HttpRequestFilter.java b/src/main/java/com/gitblit/extensions/HttpRequestFilter.java
new file mode 100644
index 00000000..e3e330cb
--- /dev/null
+++ b/src/main/java/com/gitblit/extensions/HttpRequestFilter.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014 gitblit.com.
+ *
+ * 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.gitblit.extensions;
+
+import java.io.IOException;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+import ro.fortsoft.pf4j.ExtensionPoint;
+
+/**
+ * Extension point to intercept HTTP requests passing through the server.
+ *
+ * @author David Ostrovsky
+ * @since 1.6.0
+ *
+ */
+public abstract class HttpRequestFilter implements Filter, ExtensionPoint {
+
+	@Override
+	public void init(FilterConfig config) throws ServletException {
+	}
+
+	@Override
+	public void destroy() {
+	}
+
+	@Override
+	public abstract void doFilter(ServletRequest request, ServletResponse response,
+			FilterChain chain) throws IOException, ServletException;
+}