1 files changed, 57 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/java/JavaPlugin.java b/src/main/java/com/google/devtools/build/lib/rules/java/JavaPlugin.java
new file mode 100644
index 0000000000..526d52c01d
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/java/JavaPlugin.java
@@ -0,0 +1,57 @@
+// 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.rules.java;
+
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.analysis.ConfiguredTarget;
+import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder;
+import com.google.devtools.build.lib.analysis.RuleContext;
+import com.google.devtools.build.lib.packages.Type;
+import com.google.devtools.build.lib.rules.RuleConfiguredTargetFactory;
+
+/**
+ * Implementation for the java_plugin rule.
+ */
+public class JavaPlugin implements RuleConfiguredTargetFactory {
+
+  private final JavaSemantics semantics;
+
+  protected JavaPlugin(JavaSemantics semantics) {
+    this.semantics = semantics;
+  }
+
+  @Override
+  public ConfiguredTarget create(RuleContext ruleContext) throws InterruptedException {
+    JavaLibrary javaLibrary = new JavaLibrary(semantics);
+    JavaCommon common = new JavaCommon(ruleContext, semantics);
+    RuleConfiguredTargetBuilder builder = javaLibrary.init(ruleContext, common);
+    if (builder == null) {
+      return null;
+    }
+    builder.add(JavaPluginInfoProvider.class, new JavaPluginInfoProvider(
+        getProcessorClasses(ruleContext), common.getRuntimeClasspath()));
+    return builder.build();
+  }
+
+  /**
+   * Returns the class that should be passed to javac in order
+   * to run the annotation processor this class represents.
+   */
+  private ImmutableList<String> getProcessorClasses(RuleContext ruleContext) {
+    if (ruleContext.getRule().isAttributeValueExplicitlySpecified("processor_class")) {
+      return ImmutableList.of(ruleContext.attributes().get("processor_class", Type.STRING));
+    }
+    return ImmutableList.of();
+  }
+}