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/*
* 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;
}
}
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