Java tutorial
/* * Copyright 2015 Synced Synapse. All rights reserved. * * 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.syncedsynapse.kore2.ui.hosts; import android.app.Activity; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.text.TextUtils; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import com.syncedsynapse.kore2.R; import com.syncedsynapse.kore2.host.HostInfo; import com.syncedsynapse.kore2.jsonrpc.ApiCallback; import com.syncedsynapse.kore2.jsonrpc.ApiException; import com.syncedsynapse.kore2.jsonrpc.HostConnection; import com.syncedsynapse.kore2.jsonrpc.method.JSONRPC; import com.syncedsynapse.kore2.utils.LogUtils; import com.syncedsynapse.kore2.utils.NetUtils; import butterknife.ButterKnife; import butterknife.InjectView; /** * Fragment that presents the welcome message */ public class HostFragmentManualConfiguration extends Fragment { private static final String TAG = LogUtils.makeLogTag(HostFragmentManualConfiguration.class); /** * Fragment arguments */ private static final String PREFIX = "com.syncedsynapse.kore2"; public static final String HOST_ID = PREFIX + ".host_id", HOST_NAME = PREFIX + ".host_name", HOST_ADDRESS = PREFIX + ".host_address", HOST_HTTP_PORT = PREFIX + ".host_http_port", HOST_TCP_PORT = PREFIX + ".host_tcp_post", HOST_USERNAME = PREFIX + ".host_username", HOST_PASSWORD = PREFIX + ".host_password", HOST_MAC_ADDRESS = PREFIX + ".host_mac_address", HOST_WOL_PORT = PREFIX + ".host_wol_port"; public static final String GO_STRAIGHT_TO_TEST = PREFIX + ".go_straight_to_test"; /** * Callback interface to communicate with the encolsing activity */ public interface HostManualConfigurationListener { public void onHostManualConfigurationNext(HostInfo hostInfo); public void onHostManualConfigurationCancel(); } public static String CANCEL_BUTTON_LABEL_ARG = PREFIX + ".cancel_button_label"; private HostManualConfigurationListener listener; private ProgressDialog progressDialog; @InjectView(R.id.xbmc_name) EditText xbmcNameEditText; @InjectView(R.id.xbmc_ip_address) EditText xbmcIpAddressEditText; @InjectView(R.id.xbmc_http_port) EditText xbmcHttpPortEditText; @InjectView(R.id.xbmc_tcp_port) EditText xbmcTcpPortEditText; @InjectView(R.id.xbmc_username) EditText xbmcUsernameEditText; @InjectView(R.id.xbmc_password) EditText xbmcPasswordEditText; @InjectView(R.id.xbmc_mac_address) EditText xbmcMacAddressEditText; @InjectView(R.id.xbmc_wol_port) EditText xbmcWolPortEditText; // Handler for callbacks final Handler handler = new Handler(); @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View root = inflater.inflate(R.layout.fragment_add_host_manual_configuration, container, false); ButterKnife.inject(this, root); // Check if we were given a host info String hostName = getArguments().getString(HOST_NAME); String hostAddress = getArguments().getString(HOST_ADDRESS); int hostHttpPort = getArguments().getInt(HOST_HTTP_PORT, HostInfo.DEFAULT_HTTP_PORT); int hostTcpPort = getArguments().getInt(HOST_TCP_PORT, HostInfo.DEFAULT_TCP_PORT); String hostUsername = getArguments().getString(HOST_USERNAME); String hostPassword = getArguments().getString(HOST_PASSWORD); String hostMacAddress = getArguments().getString(HOST_MAC_ADDRESS); int hostWolPort = getArguments().getInt(HOST_WOL_PORT, HostInfo.DEFAULT_WOL_PORT); if (hostAddress != null) { xbmcNameEditText.setText(hostName); xbmcIpAddressEditText.setText(hostAddress); xbmcHttpPortEditText.setText(String.valueOf(hostHttpPort)); if (!TextUtils.isEmpty(hostUsername)) xbmcUsernameEditText.setText(hostUsername); if (!TextUtils.isEmpty(hostPassword)) xbmcPasswordEditText.setText(hostPassword); if (hostTcpPort != HostInfo.DEFAULT_TCP_PORT) xbmcTcpPortEditText.setText(String.valueOf(hostTcpPort)); if (!TextUtils.isEmpty(hostMacAddress)) xbmcMacAddressEditText.setText(hostMacAddress); if (hostWolPort != HostInfo.DEFAULT_WOL_PORT) xbmcWolPortEditText.setText(String.valueOf(hostWolPort)); } return root; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); if (getView() == null) return; progressDialog = new ProgressDialog(getActivity()); Button next, previous; // Next button next = (Button) getView().findViewById(R.id.next); next.setText(R.string.test_connection); next.setCompoundDrawables(null, null, null, null); next.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { testConnection(); } }); // Previous button previous = (Button) getView().findViewById(R.id.previous); if (getArguments().getString(CANCEL_BUTTON_LABEL_ARG, null) != null) { previous.setText(getArguments().getString(CANCEL_BUTTON_LABEL_ARG)); } else { previous.setText(android.R.string.cancel); } previous.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { listener.onHostManualConfigurationCancel(); } }); // Check if the activity wants us to go straight to test boolean goStraighToTest = getArguments().getBoolean(GO_STRAIGHT_TO_TEST, false); if (goStraighToTest) { testConnection(); } } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { listener = (HostManualConfigurationListener) activity; } catch (ClassCastException e) { throw new ClassCastException( activity.toString() + " must implement AddHostManualConfigurationListener interface."); } } /** * Tests a connection with the values set in the UI. * Checks whether the values are correctly set, and then tries to make * a ping call. First through HTTP, and if it succeeds, through TCP to * check availability. Finally adds the host and advances the wizard */ private void testConnection() { String xbmcName = xbmcNameEditText.getText().toString(); String xbmcAddress = xbmcIpAddressEditText.getText().toString(); int xbmcHttpPort; String aux = xbmcHttpPortEditText.getText().toString(); try { xbmcHttpPort = TextUtils.isEmpty(aux) ? HostInfo.DEFAULT_HTTP_PORT : Integer.valueOf(aux); } catch (NumberFormatException exc) { xbmcHttpPort = -1; } String xbmcUsername = xbmcUsernameEditText.getText().toString(); String xbmcPassword = xbmcPasswordEditText.getText().toString(); aux = xbmcTcpPortEditText.getText().toString(); int xbmcTcpPort; try { xbmcTcpPort = TextUtils.isEmpty(aux) ? HostInfo.DEFAULT_TCP_PORT : Integer.valueOf(aux); } catch (NumberFormatException exc) { xbmcTcpPort = -1; } String macAddress = xbmcMacAddressEditText.getText().toString(); aux = xbmcWolPortEditText.getText().toString(); int xbmcWolPort = TextUtils.isEmpty(aux) ? HostInfo.DEFAULT_WOL_PORT : Integer.valueOf(aux); // Check Xbmc name and address if (TextUtils.isEmpty(xbmcName)) { Toast.makeText(getActivity(), R.string.wizard_no_name_specified, Toast.LENGTH_SHORT).show(); xbmcNameEditText.requestFocus(); return; } else if (TextUtils.isEmpty(xbmcAddress)) { Toast.makeText(getActivity(), R.string.wizard_no_address_specified, Toast.LENGTH_SHORT).show(); xbmcIpAddressEditText.requestFocus(); return; } else if (xbmcHttpPort <= 0) { Toast.makeText(getActivity(), R.string.wizard_invalid_http_port_specified, Toast.LENGTH_SHORT).show(); xbmcHttpPortEditText.requestFocus(); return; } else if (xbmcTcpPort <= 0) { Toast.makeText(getActivity(), R.string.wizard_invalid_tcp_port_specified, Toast.LENGTH_SHORT).show(); xbmcTcpPortEditText.requestFocus(); return; } // If username or password empty, set it to null if (TextUtils.isEmpty(xbmcUsername)) xbmcUsername = null; if (TextUtils.isEmpty(xbmcPassword)) xbmcPassword = null; // Ok, let's try to ping the host final HostInfo checkedHostInfo = new HostInfo(xbmcName, xbmcAddress, xbmcHttpPort, xbmcTcpPort, xbmcUsername, xbmcPassword); checkedHostInfo.setMacAddress(macAddress); checkedHostInfo.setWolPort(xbmcWolPort); progressDialog.setTitle( String.format(getResources().getString(R.string.wizard_connecting_to_xbmc_title), xbmcName)); progressDialog.setMessage(getResources().getString(R.string.wizard_connecting_to_xbmc_message)); progressDialog.setCancelable(false); progressDialog.setIndeterminate(true); progressDialog.setOnShowListener(new DialogInterface.OnShowListener() { @Override public void onShow(DialogInterface dialog) { // Let's ping the host through HTTP chainCallCheckHttpConnection(checkedHostInfo); } }); progressDialog.show(); } private void chainCallCheckHttpConnection(final HostInfo hostInfo) { // Let's ping the host through HTTP final HostConnection hostConnection = new HostConnection(hostInfo); hostConnection.setProtocol(HostConnection.PROTOCOL_HTTP); final JSONRPC.Ping httpPing = new JSONRPC.Ping(); httpPing.execute(hostConnection, new ApiCallback<String>() { @Override public void onSucess(String result) { LogUtils.LOGD(TAG, "Successfully connected to new host through HTTP."); // Great, we managed to connect through HTTP, let's check it's version chainCallCheckTcpConnection(hostConnection, hostInfo); } @Override public void onError(int errorCode, String description) { // Couldn't connect through HTTP, abort, and initialize checkedHostInfo hostConnection.disconnect(); hostConnectionError(errorCode, description); } }, handler); } private void chainCallCheckTcpConnection(final HostConnection hostConnection, final HostInfo hostInfo) { final JSONRPC.Ping tcpPing = new JSONRPC.Ping(); hostConnection.setProtocol(HostConnection.PROTOCOL_TCP); tcpPing.execute(hostConnection, new ApiCallback<String>() { @Override public void onSucess(String result) { // Great, we managed to connect through HTTP and TCP hostConnection.disconnect(); LogUtils.LOGD(TAG, "Successfully connected to new host through TCP."); // Notify connection checked through TCP hostConnectionChecked(hostInfo, HostConnection.PROTOCOL_TCP); } @Override public void onError(int errorCode, String description) { // We only managed to connect through HTTP, revert checkedHostInfo to use HTTP hostConnection.disconnect(); LogUtils.LOGD(TAG, "Couldn't connect to host through TCP. Message: " + description); // Notify connection checked through TCP hostConnectionChecked(hostInfo, HostConnection.PROTOCOL_HTTP); } }, handler); } /** * The connection was checked, and hostInfo has all the correct parameters to communicate * with it * @param hostInfo {@link HostInfo} to add */ private void hostConnectionChecked(final HostInfo hostInfo, int protocol) { hostInfo.setProtocol(protocol); // Let's get the MAC Address, if we don't have one if (TextUtils.isEmpty(hostInfo.getMacAddress())) { new Thread(new Runnable() { @Override public void run() { String localMacAddress = NetUtils.getMacAddress(hostInfo.getAddress()); hostInfo.setMacAddress(localMacAddress); handler.post(new Runnable() { @Override public void run() { progressDialog.dismiss(); listener.onHostManualConfigurationNext(hostInfo); } }); } }).start(); } else { // Mac address was supplied progressDialog.dismiss(); listener.onHostManualConfigurationNext(hostInfo); } } /** * Treats errors occurred during the connection check * @param errorCode Error code * @param description Description */ private void hostConnectionError(int errorCode, String description) { progressDialog.dismiss(); LogUtils.LOGD(TAG, "An error occurred during connection testint. Message: " + description); switch (errorCode) { case ApiException.HTTP_RESPONSE_CODE_UNAUTHORIZED: String username = xbmcUsernameEditText.getText().toString(), password = xbmcPasswordEditText.getText().toString(); int messageResourceId; if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password)) { messageResourceId = R.string.wizard_empty_authentication; } else { messageResourceId = R.string.wizard_incorrect_authentication; } Toast.makeText(getActivity(), messageResourceId, Toast.LENGTH_SHORT).show(); xbmcUsernameEditText.requestFocus(); break; default: Toast.makeText(getActivity(), R.string.wizard_error_connecting, Toast.LENGTH_SHORT).show(); break; } } }