1 files changed, 106 insertions, 0 deletions
diff --git a/src/com/google/android/testing/mocking/SdkVersion.java b/src/com/google/android/testing/mocking/SdkVersion.java
new file mode 100644
index 0000000..ee61707
--- /dev/null
+++ b/src/com/google/android/testing/mocking/SdkVersion.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2010 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.android.testing.mocking;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * Represents different SDK versions of the Android SDK.
+ * 
+ * @author swoodward@google.com (Stephen Woodward)
+ */
+public enum SdkVersion {
+  UNKNOWN("", -1), CUPCAKE("v15", 3), DONUT("v16", 4), ECLAIR_0_1("v201", 6),
+  ECLAIR_MR1("v21", 7), FROYO("v22", 8);
+
+  private static final int SDK_VERSION;
+
+  static {
+    String sdkString = null;
+    int sdkInt;
+    try {
+      Class<?> buildClass = Class.forName("android.os.Build$VERSION");
+      Field sdkField = buildClass.getField("SDK");
+      sdkString = (String) sdkField.get(null);
+      sdkInt = Integer.parseInt(sdkString);
+    } catch (Exception e) {
+      // This will always happen on the desktop side.  No big deal.
+      if (sdkString != null) {
+        // But this is unexpected
+        System.out.println(e.toString());
+        e.printStackTrace();
+      }
+      sdkInt = -1;
+    }
+    SDK_VERSION = sdkInt;
+  }
+
+  private final String prefix;
+  private final String versionName;
+  private final int apiLevel;
+
+  private SdkVersion(String packagePrefix, int apiLevel) {
+    versionName = packagePrefix;
+    prefix = packagePrefix.length() == 0 ? "" : packagePrefix + ".";
+    this.apiLevel = apiLevel;
+  }
+
+  /**
+   * Returns an array of SdkVersion objects.  This is to be favoured over the
+   * {@link #values()} method, since that method will also return the UNKNOWN
+   * SDK version, which is not usually a valid version on which to operate.
+   * 
+   * @return an array of SdkVersion objects.
+   */
+  public static SdkVersion[] getAllVersions() {
+    List<SdkVersion> versions = new ArrayList<SdkVersion>();
+    for (SdkVersion version : values()) {
+      if (!version.equals(UNKNOWN)) {
+        versions.add(version);
+      }
+    }
+    return versions.toArray(new SdkVersion[versions.size()]);
+  }
+
+  public String getVersionName() {
+    return versionName;
+  }
+
+  public String getPackagePrefix() {
+    return prefix;
+  }
+
+  /**
+   * Returns the current SDK version, or UNKNOWN if the version cannot be determined (for instance
+   * if this method is invoked from within a J2SE environment).
+   * @return the current SDK version.
+   */
+  public static SdkVersion getCurrentVersion() {
+    return getVersionFor(SDK_VERSION);
+  }
+
+  static SdkVersion getVersionFor(int apiLevel) {
+    for (SdkVersion version : values()) {
+      if (version.apiLevel == apiLevel) {
+        return version;
+      }
+    }
+    return UNKNOWN;
+  }
+}