ConfigResourceUtil.java

/*
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 * Redistributions of source code must retain the above copyright
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 * Redistributions in binary form must reproduce the above
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.android.internal.telephony;

import android.content.Context;
import android.content.res.Resources;
import android.content.res.Resources.NotFoundException;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;
import java.util.Arrays;

public class ConfigResourceUtil {
    public static final String TAG = "ConfigResourceUtil";
    public static String packageName = "com.android.frameworks.telresources";

    private static Resources getResources(Context context) throws
            NameNotFoundException, IllegalArgumentException {
        if (context == null) {
            Log.e(TAG, "context is null");
            throw new IllegalArgumentException("context==null");
        }

        Resources res = context.getPackageManager().
                getResourcesForApplication(packageName);

        if (res == null) {
            Log.e(TAG, "res is null");
            throw new IllegalArgumentException("res==null");
        }

        return res;
    }

    /**
     * Utility method that gets a boolean resource declared in
     * frameworks/opt/telephony/resources/res/values/config.xml. This
     * resource may be replaced by an overlay of the same name.
     * @param context The context of the application calling the utility
     * @param resourceName The name of the resource that is requested
     * @return value of resource
     */
    public static boolean getBooleanValue(Context context, String resourceName) {
        try {
            Resources res = getResources(context);
            int resId = res.getIdentifier(resourceName, "bool", packageName);
            boolean resValue = res.getBoolean(resId);

            Log.v(TAG, "resourceName = " + resourceName + " resourceId = " +
                    resId + "resourceValue = " + resValue);

            return resValue;
        } catch (NameNotFoundException | NotFoundException |
                IllegalArgumentException e) {
            throw new RuntimeException(e.getMessage());
        }
    }

    /**
     * Utility method that gets an integer resource declared in
     * frameworks/opt/telephony/resources/res/values/config.xml. This
     * resource may be replaced by an overlay of the same name.
     * @param context The context of the application calling the utility
     * @param resourceName The name of the resource that is requested
     * @return value of resource
     */
    public static int getIntValue(Context context, String resourceName) {
        try {
            Resources res = getResources(context);
            int resId = res.getIdentifier(resourceName, "integer", packageName);
            int resValue = res.getInteger(resId);

            Log.v(TAG, "resourceName = " + resourceName + " resourceId = " +
                    resId + "resourceValue = " + resValue);

            return resValue;
        } catch (NameNotFoundException | NotFoundException |
                IllegalArgumentException e) {
            throw new RuntimeException(e.getMessage());
        }
    }

    /**
     * Utility method that gets a string resource declared in
     * frameworks/opt/telephony/resources/res/values/config.xml. This
     * resource may be replaced by an overlay of the same name.
     * @param context The context of the application calling the utility
     * @param resourceName The name of the resource that is requested
     * @return value of resource
     */
    public static String getStringValue(Context context, String resourceName) {
        try {
            Resources res = getResources(context);
            int resId = res.getIdentifier(resourceName, "string", packageName);
            String resValue = res.getString(resId);

            Log.v(TAG, "resourceName = " + resourceName + " resourceId = " +
                    resId + "resourceValue = " + resValue);

            return resValue;
        } catch (NameNotFoundException | NotFoundException |
                IllegalArgumentException e) {
            throw new RuntimeException(e.getMessage());
        }

    }

    /**
     * Utility method that gets an integer array resource declared in
     * frameworks/opt/telephony/resources/res/values/config.xml. This
     * resource may be replaced by an overlay of the same name.
     * @param context The context of the application calling the utility
     * @param resourceName The name of the resource that is requested
     * @return value of resource
     */
    public static int[] getIntArray(Context context, String resourceName) {
        try {
            Resources res = getResources(context);
            int resId = res.getIdentifier(resourceName, "array", packageName);
            int[] resValue = res.getIntArray(resId);

            Log.v(TAG, "resourceName = " + resourceName + " resourceId = " +
                    resId + "resourceValue = " + Arrays.toString(resValue));

            return resValue;
        } catch (NameNotFoundException | NotFoundException |
                IllegalArgumentException e) {
            throw new RuntimeException(e.getMessage());
        }
    }

    /**
     * Utility method that gets a string array resource declared in
     * frameworks/opt/telephony/resources/res/values/config.xml. This
     * resource may be replaced by an overlay of the same name.
     * @param context The context of the application calling the utility
     * @param resourceName The name of the resource that is requested
     * @return value of resource
     */
    public static String[] getStringArray(Context context, String resourceName) {
        try {
            Resources res = getResources(context);

            int resId = res.getIdentifier(resourceName, "array", packageName);
            String[] resValue = res.getStringArray(resId);

            Log.v(TAG, "resourceName = " + resourceName + " resourceId = " +
                    resId + "resourceValue = " + Arrays.toString(resValue));

            return resValue;
        } catch (NameNotFoundException | NotFoundException |
                IllegalArgumentException e) {
            throw new RuntimeException(e.getMessage());
        }
    }
}