1 files changed, 81 insertions, 0 deletions
diff --git a/src/com/google/caliper/Scenario.java b/src/com/google/caliper/Scenario.java
new file mode 100644
index 0000000..3fd06e4
--- /dev/null
+++ b/src/com/google/caliper/Scenario.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2009 Google Inc.
+ *
+ * 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.caliper;
+
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * A configured benchmark.
+ *
+ * <p>Gwt-safe.
+ */
+public final class Scenario
+    implements Serializable /* for GWT */  {
+
+  static final String VM_KEY = "vm";
+
+  /**
+   * The subset of variable names that are managed by the system. It is an error
+   * to create a parameter with the same name as one of these variables.
+   */
+  static final Set<String> SYSTEM_VARIABLES = new HashSet<String>(Arrays.asList(VM_KEY));
+
+  private /*final*/ Map<String, String> variables;
+
+  public Scenario(Map<String, String> variables) {
+    this.variables = new LinkedHashMap<String, String>(variables);
+  }
+
+  public Map<String, String> getVariables() {
+    return variables;
+  }
+
+  /**
+   * Returns the user-specified parameters. This is the (possibly-empty) set of
+   * variables that may be varied from scenario to scenario in the same
+   * environment.
+   */
+  public Map<String, String> getParameters() {
+    Map<String, String> result = new LinkedHashMap<String, String>();
+    for (Map.Entry<String, String> entry : variables.entrySet()) {
+      if (!SYSTEM_VARIABLES.contains(entry.getKey())) {
+        result.put(entry.getKey(), entry.getValue());
+      }
+    }
+    return result;
+  }
+
+  @Override public boolean equals(Object o) {
+    return o instanceof Scenario
+        && ((Scenario) o).getVariables().equals(variables);
+  }
+
+  @Override public int hashCode() {
+    return variables.hashCode();
+  }
+
+  @Override public String toString() {
+    return "Scenario" + variables;
+  }
+
+  private Scenario() {} // for GWT
+}