Migration to Java 8. API with default implementation.

src/main/java/io/appium/java_client/AppiumDriver.java

@@ -19,25 +19,11 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import static io.appium.java_client.MobileCommand.CLOSE_APP;
-import static io.appium.java_client.MobileCommand.GET_DEVICE_TIME;
 import static io.appium.java_client.MobileCommand.GET_SESSION;
 import static io.appium.java_client.MobileCommand.GET_SETTINGS;
-import static io.appium.java_client.MobileCommand.GET_STRINGS;
-import static io.appium.java_client.MobileCommand.HIDE_KEYBOARD;
-import static io.appium.java_client.MobileCommand.INSTALL_APP;
-import static io.appium.java_client.MobileCommand.IS_APP_INSTALLED;
-import static io.appium.java_client.MobileCommand.LAUNCH_APP;
-import static io.appium.java_client.MobileCommand.PERFORM_MULTI_TOUCH;
-import static io.appium.java_client.MobileCommand.PERFORM_TOUCH_ACTION;
-import static io.appium.java_client.MobileCommand.PULL_FILE;
-import static io.appium.java_client.MobileCommand.PULL_FOLDER;
-import static io.appium.java_client.MobileCommand.REMOVE_APP;
-import static io.appium.java_client.MobileCommand.RUN_APP_IN_BACKGROUND;
 import static io.appium.java_client.MobileCommand.SET_SETTINGS;
 import static io.appium.java_client.MobileCommand.prepareArguments;
 
-import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
@@ -75,7 +61,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import javax.xml.bind.DatatypeConverter;
 
 /**
 * @param <T> the required type of class which implement {@link org.openqa.selenium.WebElement}.
@@ -231,123 +216,10 @@ public List<T> findElementsByXPath(String using) {
         return super.findElementsByAccessibilityId(using);
     }
 
-    @Override protected Response execute(String command) {
-        return super.execute(command, ImmutableMap.<String, Object>of());
-    }
-
     @Override public ExecuteMethod getExecuteMethod() {
         return executeMethod;
     }
 
-    /**
-     * @see InteractsWithApps#resetApp().
-     */
-    @Override public void resetApp() {
-        execute(MobileCommand.RESET);
-    }
-
-    /**
-     * @see InteractsWithApps#isAppInstalled(String).
-     */
-    @Override public boolean isAppInstalled(String bundleId) {
-        Response response = execute(IS_APP_INSTALLED, ImmutableMap.of("bundleId", bundleId));
-
-        return Boolean.parseBoolean(response.getValue().toString());
-    }
-
-    /**
-     * @see InteractsWithApps#installApp(String).
-     */
-    @Override public void installApp(String appPath) {
-        execute(INSTALL_APP, ImmutableMap.of("appPath", appPath));
-    }
-
-    /**
-     * @see InteractsWithApps#removeApp(String).
-     */
-    @Override public void removeApp(String bundleId) {
-        execute(REMOVE_APP, ImmutableMap.of("bundleId", bundleId));
-    }
-
-    /**
-     * @see InteractsWithApps#launchApp().
-     */
-    @Override public void launchApp() {
-        execute(LAUNCH_APP);
-    }
-
-    /**
-     * @see InteractsWithApps#closeApp().
-     */
-    @Override public void closeApp() {
-        execute(CLOSE_APP);
-    }
-
-    /**
-     * @see InteractsWithApps#runAppInBackground(int).
-     */
-    @Override public void runAppInBackground(int seconds) {
-        execute(RUN_APP_IN_BACKGROUND, ImmutableMap.of("seconds", seconds));
-    }
-
-    /**
-     * @see DeviceActionShortcuts#getDeviceTime().
-     */
-    @Override public String getDeviceTime() {
-        Response response = execute(GET_DEVICE_TIME);
-        return response.getValue().toString();
-    }
-
-    /**
-     * @see DeviceActionShortcuts#hideKeyboard().
-     */
-    @Override public void hideKeyboard() {
-        execute(HIDE_KEYBOARD);
-    }
-
-    /**
-     * @see InteractsWithFiles#pullFile(String).
-     */
-    @Override public byte[] pullFile(String remotePath) {
-        Response response = execute(PULL_FILE, ImmutableMap.of("path", remotePath));
-        String base64String = response.getValue().toString();
-
-        return DatatypeConverter.parseBase64Binary(base64String);
-    }
-
-    /**
-     * @see InteractsWithFiles#pullFolder(String).
-     */
-    @Override
-    public byte[] pullFolder(String remotePath) {
-        Response response = execute(PULL_FOLDER, ImmutableMap.of("path", remotePath));
-        String base64String = response.getValue().toString();
-
-        return DatatypeConverter.parseBase64Binary(base64String);
-    }
-
-    /**
-     * @see PerformsTouchActions#performTouchAction(TouchAction).
-     */
-    @SuppressWarnings("rawtypes")
-    @Override public TouchAction performTouchAction(
-        TouchAction touchAction) {
-        ImmutableMap<String, ImmutableList> parameters = touchAction.getParameters();
-        execute(PERFORM_TOUCH_ACTION, parameters);
-        return touchAction;
-    }
-
-    /**
-     * @see PerformsTouchActions#performMultiTouchAction(MultiTouchAction).
-     */
-    @Override
-    @SuppressWarnings({"rawtypes"})
-    public void performMultiTouchAction(
-        MultiTouchAction multiAction) {
-        ImmutableMap<String, ImmutableList> parameters = multiAction.getParameters();
-        execute(PERFORM_MULTI_TOUCH, parameters);
-    }
-
     /**
      * @see TouchShortcuts#tap(int, WebElement, int).
      */
@@ -604,38 +476,6 @@ protected void setSetting(AppiumSetting setting, Object value) {
         locationContext.setLocation(location);
     }
 
-    /**
-     * @return a map with localized strings defined in the app.
-     * @see HasAppStrings#getAppStringMap().
-     */
-    @Override public Map<String, String> getAppStringMap() {
-        Response response = execute(GET_STRINGS);
-        return (Map<String, String>) response.getValue();
-    }
-
-    /**
-     * @param language strings language code.
-     * @return a map with localized strings defined in the app.
-     * @see HasAppStrings#getAppStringMap(String).
-     */
-    @Override public Map<String, String> getAppStringMap(String language) {
-        Response response = execute(GET_STRINGS, prepareArguments("language", language));
-        return (Map<String, String>) response.getValue();
-    }
-
-    /**
-     * @param language   strings language code.
-     * @param stringFile strings filename.
-     * @return a map with localized strings defined in the app.
-     * @see HasAppStrings#getAppStringMap(String, String).
-     */
-    @Override public Map<String, String> getAppStringMap(String language, String stringFile) {
-        String[] parameters = new String[] {"language", "stringFile"};
-        Object[] values = new Object[] {language, stringFile};
-        Response response = execute(GET_STRINGS, prepareArguments(parameters, values));
-        return (Map<String, String>) response.getValue();
-    }
-
     private TouchAction createTap(WebElement element, int duration) {
         TouchAction tap = new TouchAction(this);
         return tap.press(element).waitAction(duration).release();

src/main/java/io/appium/java_client/CommandExecutionHelper.java

@@ -22,14 +22,13 @@
 
 public final class CommandExecutionHelper {
 
-    public static <T extends Object> T execute(MobileElement element,
+    public static <T extends Object> T execute(ExecutesMethod executesMethod,
         Map.Entry<String, Map<String, ?>> keyValuePair) {
-        return handleResponse(element.execute(keyValuePair.getKey(), keyValuePair.getValue()));
+        return handleResponse(executesMethod.execute(keyValuePair.getKey(), keyValuePair.getValue()));
     }
 
-    public static <T extends Object> T execute(MobileDriver driver,
-        Map.Entry<String, Map<String, ?>> keyValuePair) {
-        return handleResponse(driver.execute(keyValuePair.getKey(), keyValuePair.getValue()));
+    public static <T extends Object> T execute(ExecutesMethod executesMethod, String command) {
+        return handleResponse(executesMethod.execute(command));
     }
 
     private static <T extends Object> T handleResponse(Response responce) {

src/main/java/io/appium/java_client/DefaultGenericMobileDriver.java

@@ -16,6 +16,7 @@
 
 package io.appium.java_client;
 
+import com.google.common.collect.ImmutableMap;
 import org.openqa.selenium.By;
 import org.openqa.selenium.Capabilities;
 import org.openqa.selenium.WebDriverException;
@@ -40,6 +41,10 @@ public DefaultGenericMobileDriver(CommandExecutor executor, Capabilities desired
         return super.execute(driverCommand, parameters);
     }
 
+    @Override public Response execute(String command) {
+        return super.execute(command, ImmutableMap.<String, Object>of());
+    }
+
     @Override public List findElements(By by) {
         return super.findElements(by);
     }
@@ -138,20 +143,6 @@ public List findElementsByXPath(String using) {
         return super.findElementsByXPath(using);
     }
 
-    /**
-    * @throws WebDriverException This method is not applicable with browser/webview UI.
-    */
-    @Override public T findElementByAccessibilityId(String using) throws WebDriverException {
-        return (T) findElement(MobileSelector.ACCESSIBILITY.toString(), using);
-    }
-
-    /**
-     * @throws WebDriverException This method is not applicable with browser/webview UI.
-     */
-    @Override public List findElementsByAccessibilityId(String using) throws WebDriverException {
-        return (List<T>) findElements(MobileSelector.ACCESSIBILITY.toString(), using);
-    }
-
     /**
      * Mouse doesn't work on mobile devices and emulators.
      */

src/main/java/io/appium/java_client/DefaultGenericMobileElement.java

@@ -16,6 +16,7 @@
 
 package io.appium.java_client;
 
+import com.google.common.collect.ImmutableMap;
 import org.openqa.selenium.By;
 import org.openqa.selenium.WebDriverException;
 import org.openqa.selenium.WebElement;
@@ -27,12 +28,16 @@
 
 @SuppressWarnings({"unchecked", "rawtypes"})
 abstract class DefaultGenericMobileElement<T extends WebElement> extends RemoteWebElement
-    implements FindsByAccessibilityId<T>, TouchableElement<T> {
+    implements TouchableElement<T> {
 
     @Override public Response execute(String driverCommand, Map<String, ?> parameters) {
         return super.execute(driverCommand, parameters);
     }
 
+    @Override public Response execute(String command) {
+        return super.execute(command, ImmutableMap.<String, Object>of());
+    }
+
     @Override public List findElements(By by) {
         return super.findElements(by);
     }
@@ -131,14 +136,6 @@ public List findElementsByXPath(String using) {
         return super.findElementsByXPath(using);
     }
 
-    @Override public T findElementByAccessibilityId(String using) {
-        return (T) findElement(MobileSelector.ACCESSIBILITY.toString(), using);
-    }
-
-    @Override public List findElementsByAccessibilityId(String using) {
-        return findElements(MobileSelector.ACCESSIBILITY.toString(), using);
-    }
-
     /**
      * @throws WebDriverException because it may not work against native app UI.
      */

src/main/java/io/appium/java_client/DeviceActionShortcuts.java

@@ -16,20 +16,29 @@
 
 package io.appium.java_client;
 
+import static io.appium.java_client.MobileCommand.GET_DEVICE_TIME;
+import static io.appium.java_client.MobileCommand.HIDE_KEYBOARD;
 
-public interface DeviceActionShortcuts {
+import org.openqa.selenium.remote.Response;
+
+public interface DeviceActionShortcuts extends ExecutesMethod {
 
     /**
      * Hides the keyboard if it is showing.
      * On iOS, there are multiple strategies for hiding the keyboard.
      * Defaults to the "tapOutside" strategy (taps outside the keyboard).
      * Switch to using hideKeyboard(HideKeyboardStrategy.PRESS_KEY, "Done") if this doesn't work.
      */
-    void hideKeyboard();
+    default void hideKeyboard() {
+        execute(HIDE_KEYBOARD);
+    }
 
     /*
         Gets device date and time for both iOS(Supports only real device) and Android devices
      */
-    String getDeviceTime();
+    default String getDeviceTime() {
+        Response response = execute(GET_DEVICE_TIME);
+        return response.getValue().toString();
+    }
 
 }

src/main/java/io/appium/java_client/ExecutesMethod.java

@@ -0,0 +1,40 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * See the NOTICE file distributed with this work for additional
+ * information regarding copyright ownership.
+ * 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 io.appium.java_client;
+
+import org.openqa.selenium.remote.Response;
+
+import java.util.Map;
+
+public interface ExecutesMethod {
+    /**
+     * Executes JSONWP command and returns a response
+     *
+     * @param driverCommand a JSONWP command
+     * @param parameters map of command parameters
+     * @return a result response
+     */
+    Response execute(String driverCommand, Map<String, ?> parameters);
+
+    /**
+     * Executes JSONWP command and returns a response
+     *
+     * @param driverCommand a JSONWP command
+     * @return a result response
+     */
+    Response execute(String driverCommand);
+}

src/main/java/io/appium/java_client/FindsByAccessibilityId.java

@@ -16,12 +16,25 @@
 
 package io.appium.java_client;
 
+import org.openqa.selenium.WebDriverException;
 import org.openqa.selenium.WebElement;
 
 import java.util.List;
 
-public interface FindsByAccessibilityId<T extends WebElement> {
-    T findElementByAccessibilityId(String using);
+public interface FindsByAccessibilityId<T extends WebElement> extends FindsByFluentSelector<T> {
+    /**
+     * @throws WebDriverException This method is not
+     *      applicable with browser/webview UI.
+     */
+    default T findElementByAccessibilityId(String using) {
+        return findElement(MobileSelector.ACCESSIBILITY.toString(), using);
+    }
 
-    List<T> findElementsByAccessibilityId(String using);
+    /**
+     * @throws WebDriverException This method is not
+     *      applicable with browser/webview UI.
+     */
+    default List<T> findElementsByAccessibilityId(String using) {
+        return findElements(MobileSelector.ACCESSIBILITY.toString(), using);
+    }
 }