1 files changed, 80 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/webstatusserver/StaticResourceHandler.java b/src/main/java/com/google/devtools/build/lib/webstatusserver/StaticResourceHandler.java
new file mode 100644
index 0000000000..cd9eb5f845
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/webstatusserver/StaticResourceHandler.java
@@ -0,0 +1,80 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// 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.google.devtools.build.lib.webstatusserver;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.io.CharStreams;
+import com.google.devtools.build.lib.util.ResourceFileLoader;
+
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.URL;
+import java.util.List;
+
+/**
+ * Handler for static resources (JS, html, css...)
+ */
+public class StaticResourceHandler implements HttpHandler {
+  private String response;
+  private List<String> contentType;
+  private int httpCode;
+
+  public static StaticResourceHandler createFromAbsolutePath(String path, String contentType) {
+    return new StaticResourceHandler(path, contentType, true);
+  }
+
+  public static StaticResourceHandler createFromRelativePath(String path, String contentType) {
+    return new StaticResourceHandler(path, contentType, false);
+  }
+
+  private StaticResourceHandler(String path, String contentType, boolean absolutePath) {
+    try {
+      if (absolutePath) {
+        InputStream resourceStream = loadFromAbsolutePath(WebStatusServerModule.class, path);
+        response = CharStreams.toString(new InputStreamReader(resourceStream));
+
+      } else {
+        response = ResourceFileLoader.loadResource(WebStatusServerModule.class, path);
+      }
+      httpCode = 200;
+    } catch (IOException e) {
+      throw new IllegalArgumentException("resource " + path + " not found");
+    }
+    this.contentType = ImmutableList.of(contentType);
+  }
+
+  @Override
+  public void handle(HttpExchange exchange) throws IOException {
+    exchange.getResponseHeaders().put("Content-Type", contentType);
+    exchange.sendResponseHeaders(httpCode, response.length());
+    OutputStream os = exchange.getResponseBody();
+    os.write(response.getBytes());
+    os.close();
+  }
+
+  public static InputStream loadFromAbsolutePath(Class<?> loadingClass, String path)
+      throws IOException {
+    URL resourceUrl = loadingClass.getClassLoader().getResource(path);
+    if (resourceUrl == null) {
+      throw new IllegalArgumentException("resource " + path + " not found");
+    }
+    return resourceUrl.openStream();
+  }
+}