1 files changed, 124 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/J2ObjcSource.java b/src/main/java/com/google/devtools/build/lib/rules/objc/J2ObjcSource.java
new file mode 100644
index 0000000000..81ba292314
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/J2ObjcSource.java
@@ -0,0 +1,124 @@
+// 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.objc;
+
+import com.google.common.base.Objects;
+import com.google.common.collect.Iterators;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.syntax.Label;
+import com.google.devtools.build.lib.vfs.PathFragment;
+
+/**
+ * An object that captures information of ObjC files generated by J2ObjC in a single target.
+ */
+public class J2ObjcSource {
+
+  /**
+   * Indicates the type of files from which the ObjC files included in {@link J2ObjcSource} are
+   * generated.
+   */
+  public enum SourceType {
+    /**
+     * Indicates the original file type is java source file.
+     */
+    JAVA,
+
+    /**
+     * Indicates the original file type is proto file.
+     */
+    PROTO;
+  }
+
+  private final Label targetLabel;
+  private final Iterable<Artifact> objcSrcs;
+  private final Iterable<Artifact> objcHdrs;
+  private final PathFragment objcFilePath;
+  private final SourceType sourceType;
+
+  /**
+   * Constructs a J2ObjcSource containing target information for j2objc transpilation.
+   *
+   * @param targetLabel the @{code Label} of the associated target.
+   * @param objcSrcs the {@code Iterable} containing objc source files generated by J2ObjC
+   * @param objcHdrs the {@code Iterable} containing objc header files generated by J2ObjC
+   * @param objcFilePath the {@code PathFragment} under which all the generated objc files are. It
+   *     can be used as header search path for objc compilations.
+   * @param sourceType the type of files from which the ObjC files are generated.
+   */
+  public J2ObjcSource(Label targetLabel, Iterable<Artifact> objcSrcs,
+      Iterable<Artifact> objcHdrs, PathFragment objcFilePath, SourceType sourceType) {
+    this.targetLabel = targetLabel;
+    this.objcSrcs = objcSrcs;
+    this.objcHdrs = objcHdrs;
+    this.objcFilePath = objcFilePath;
+    this.sourceType = sourceType;
+  }
+
+  /**
+   * Returns the label of the associated target.
+   */
+  public Label getTargetLabel() {
+    return targetLabel;
+  }
+
+  /**
+   * Returns the objc source files generated by J2ObjC.
+   */
+  public Iterable<Artifact> getObjcSrcs() {
+    return objcSrcs;
+  }
+
+  /*
+   * Returns the objc header files generated by J2ObjC
+   */
+  public Iterable<Artifact> getObjcHdrs() {
+    return objcHdrs;
+  }
+
+  /**
+   * Returns the {@code PathFragment} which represents a directory where the generated ObjC files
+   * reside and which can also be used as header search path in ObjC compilation.
+   */
+  public PathFragment getObjcFilePath() {
+    return objcFilePath;
+  }
+
+  /**
+   * Returns the type of files from which the ObjC files inside this object are generated.
+   */
+  public SourceType getSourceType() {
+    return sourceType;
+  }
+
+  @Override
+  public final boolean equals(Object other) {
+    if (!(other instanceof J2ObjcSource)) {
+      return false;
+    }
+
+    J2ObjcSource that = (J2ObjcSource) other;
+    return Objects.equal(this.targetLabel, that.targetLabel)
+        && Iterators.elementsEqual(this.objcSrcs.iterator(), that.objcSrcs.iterator())
+        && Iterators.elementsEqual(this.objcHdrs.iterator(), that.objcHdrs.iterator())
+        && Objects.equal(this.objcFilePath, that.objcFilePath)
+        && this.sourceType == that.sourceType;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hashCode(targetLabel, objcSrcs, objcHdrs, objcFilePath, sourceType);
+  }
+}
+