com.android.tools.idea.welcome.install.FirstRunWizardDefaults.java Source code

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Here is the source code for com.android.tools.idea.welcome.install.FirstRunWizardDefaults.java

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/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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.android.tools.idea.welcome.install;

import com.android.SdkConstants;
import com.android.sdklib.devices.Storage;
import com.android.tools.idea.sdk.AndroidSdks;
import com.android.tools.idea.welcome.config.FirstRunWizardMode;
import com.google.common.base.Strings;
import com.google.common.collect.Iterables;
import com.intellij.openapi.projectRoots.JavaSdkVersion;
import com.intellij.openapi.projectRoots.Sdk;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.util.SystemInfo;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vfs.VfsUtilCore;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.NotNull;

import java.io.File;
import java.util.List;

/**
 * The goal is to keep all defaults in one place so it is easier to update
 * them as needed.
 */
public class FirstRunWizardDefaults {
    public static final String HAXM_DOCUMENTATION_URL = "https://software.intel.com/android/articles/intel-hardware-accelerated-execution-manager";
    public static final String HAXM_WINDOWS_INSTALL_URL = "https://software.intel.com/android/articles/installation-instructions-for-intel-hardware-accelerated-execution-manager-windows";
    public static final String HAXM_MAC_INSTALL_URL = "https://software.intel.com/android/articles/installation-instructions-for-intel-hardware-accelerated-execution-manager-mac-os-x";
    public static final String KVM_LINUX_INSTALL_URL = "https://software.intel.com/blogs/2012/03/12/how-to-start-intel-hardware-assisted-virtualization-hypervisor-on-linux-to-speed-up-intel-android-x86-emulator";
    public static final JavaSdkVersion MIN_JDK_VERSION = JavaSdkVersion.JDK_1_7;

    private FirstRunWizardDefaults() {
        // Do nothing
    }

    /**
     * @return Recommended memory allocation given the computer RAM size
     */
    public static int getRecommendedHaxmMemory(long memorySize) {
        final long GB = Storage.Unit.GiB.getNumberOfBytes();
        final long defaultMemory;
        if (memorySize > 4 * GB) {
            defaultMemory = 2 * GB;
        } else {
            if (memorySize > 2 * GB) {
                defaultMemory = GB;
            } else {
                defaultMemory = GB / 2;
            }
        }
        return (int) (defaultMemory / Haxm.UI_UNITS.getNumberOfBytes());
    }

    /**
     * @return Default Android SDK install location
     */
    @NotNull
    private static File getDefaultSdkLocation() {
        String path = System.getenv(SdkConstants.ANDROID_HOME_ENV);

        if (Strings.isNullOrEmpty(path)) {
            String userHome = System.getProperty("user.home");
            if (SystemInfo.isWindows) {
                path = FileUtil.join(userHome, "AppData", "Local", "Android", "Sdk");
            } else if (SystemInfo.isMac) {
                path = FileUtil.join(userHome, "Library", "Android", "sdk");
            } else if (SystemInfo.isLinux) {
                path = FileUtil.join(userHome, "Android", "Sdk");
            } else {
                Messages.showErrorDialog(
                        "Your OS is not officially supported.\n"
                                + "You can continue, but it is likely you will encounter further problems.",
                        "Unsupported OS");
                path = "";
            }
        }
        return new File(path);
    }

    /**
     * Returns initial SDK location. That will be the SDK location from the installer
     * handoff file in the handoff case, sdk location location from the preference if set
     * or platform-dependant default path.
     */
    @NotNull
    public static File getInitialSdkLocation(@NotNull FirstRunWizardMode mode) {
        File dest = mode.getSdkLocation();
        if (dest != null) {
            return dest;
        } else {
            List<Sdk> sdks = AndroidSdks.getInstance().getAllAndroidSdks();
            Sdk sdk = Iterables.getFirst(sdks, null);
            if (sdk != null) {
                VirtualFile homeDirectory = sdk.getHomeDirectory();
                if (homeDirectory != null) {
                    return VfsUtilCore.virtualToIoFile(homeDirectory);
                }
            }
            return getDefaultSdkLocation();
        }
    }

}