Java tutorial
/* * DD-WRT Companion is a mobile app that lets you connect to, * monitor and manage your DD-WRT routers on the go. * * Copyright (C) 2014 Armel Soro * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * Contact Info: Armel Soro <apps+ddwrt@rm3l.org> */ package org.rm3l.ddwrt.tiles.status.wan; import android.content.Context; import android.os.Bundle; import android.support.v4.content.AsyncTaskLoader; import android.support.v4.content.Loader; import android.util.Log; import android.view.View; import android.widget.TextView; import android.widget.Toast; import com.actionbarsherlock.app.SherlockFragment; import com.google.common.base.Splitter; import com.google.common.base.Throwables; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import org.rm3l.ddwrt.R; import org.rm3l.ddwrt.exceptions.DDWRTNoDataException; import org.rm3l.ddwrt.exceptions.DDWRTTileAutoRefreshNotAllowedException; import org.rm3l.ddwrt.resources.conn.NVRAMInfo; import org.rm3l.ddwrt.resources.conn.Router; import org.rm3l.ddwrt.tiles.DDWRTTile; import org.rm3l.ddwrt.utils.SSHUtils; import java.util.List; /** * TODO */ public class WANConfigTile extends DDWRTTile<NVRAMInfo> { private static final String LOG_TAG = WANConfigTile.class.getSimpleName(); public WANConfigTile(@NotNull SherlockFragment parentFragment, @NotNull Bundle arguments, @Nullable Router router) { super(parentFragment, arguments, router, R.layout.tile_status_wan_config, R.id.tile_status_wan_config_togglebutton); } @Override public int getTileTitleViewId() { return R.id.tile_status_wan_config_title; } @Nullable @Override protected String getLogTag() { return LOG_TAG; } /** * Instantiate and return a new Loader for the given ID. * * @param id The ID whose loader is to be created. * @param args Any arguments supplied by the caller. * @return Return a new Loader instance that is ready to start loading. */ @Override protected Loader<NVRAMInfo> getLoader(final int id, final Bundle args) { return new AsyncTaskLoader<NVRAMInfo>(this.mParentFragmentActivity) { @Nullable @Override public NVRAMInfo loadInBackground() { try { Log.d(LOG_TAG, "Init background loader for " + WANConfigTile.class + ": routerInfo=" + mRouter + " / this.mAutoRefreshToggle= " + mAutoRefreshToggle + " / nbRunsLoader=" + nbRunsLoader); if (nbRunsLoader > 0 && !mAutoRefreshToggle) { //Skip run Log.d(LOG_TAG, "Skip loader run"); return new NVRAMInfo().setException(new DDWRTTileAutoRefreshNotAllowedException()); } nbRunsLoader++; @NotNull final NVRAMInfo nvramInfo = new NVRAMInfo(); NVRAMInfo nvramInfoTmp = null; try { nvramInfoTmp = SSHUtils.getNVRamInfoFromRouter(mRouter, mGlobalPreferences, NVRAMInfo.WAN_PROTO, NVRAMInfo.WAN_3_G_SIGNAL, NVRAMInfo.WAN_HWADDR, NVRAMInfo.WAN_LEASE, NVRAMInfo.WAN_IPADDR, NVRAMInfo.WAN_NETMASK, NVRAMInfo.WAN_GATEWAY, NVRAMInfo.WAN_DNS); } finally { if (nvramInfoTmp != null) { nvramInfo.putAll(nvramInfoTmp); } //Connection Uptime is stored in /tmp/.wanuptime and sys uptime from /proc/uptime final String[] uptimes = SSHUtils.getManualProperty(mRouter, mGlobalPreferences, "cat /tmp/.wanuptime; echo; cat /proc/uptime"); if (uptimes != null && uptimes.length > 1) { final String wanUptimeStr = uptimes[0]; /* * /proc/uptime Shows how long the system has been on since it was last restarted. * The first number is the total number of seconds the system has been up. * The second number is how much of that time the machine has spent idle, in seconds. * On multi core systems (and some linux versions), the second number is the sum of * the idle time accumulated by each CPU. */ final List<String> sysUptimeSplitList = Splitter.on(" ").trimResults() .omitEmptyStrings().splitToList(uptimes[1]); if (sysUptimeSplitList != null && !sysUptimeSplitList.isEmpty()) { try { final float uptime = Float.valueOf(sysUptimeSplitList.get(0)) - Float.valueOf(wanUptimeStr); final int days = (int) uptime / (60 * 60 * 24); String wanConnectionUptimeStr = ""; if (days > 0) { wanConnectionUptimeStr += String.format("%d day%s, ", days, (days == 1 ? "" : "s")); } final int minutes = (int) uptime / 60; wanConnectionUptimeStr += String.format("%d:%02d:%02d", (minutes / 60) % 24, minutes % 60, (int) uptime % 60); nvramInfo.setProperty(NVRAMInfo.WAN_CONNECTION_UPTIME, wanConnectionUptimeStr); } catch (final NumberFormatException nfe) { nfe.printStackTrace(); //No Worries - WAN Uptime will be marked as "-" } } } } if (nvramInfo.isEmpty()) { throw new DDWRTNoDataException("No Data!"); } return nvramInfo; } catch (@NotNull final Exception e) { e.printStackTrace(); return new NVRAMInfo().setException(e); } } }; } /** * Called when a previously created loader has finished its load. Note * that normally an application is <em>not</em> allowed to commit fragment * transactions while in this call, since it can happen after an * activity's state is saved. See {@link android.support.v4.app.FragmentManager#beginTransaction() * FragmentManager.openTransaction()} for further discussion on this. * <p/> * <p>This function is guaranteed to be called prior to the release of * the last data that was supplied for this Loader. At this point * you should remove all use of the old data (since it will be released * soon), but should not do your own release of the data since its Loader * owns it and will take care of that. The Loader will take care of * management of its data so you don't have to. In particular: * <p/> * <ul> * <li> <p>The Loader will monitor for changes to the data, and report * them to you through new calls here. You should not monitor the * data yourself. For example, if the data is a {@link android.database.Cursor} * and you place it in a {@link android.widget.CursorAdapter}, use * the {@link android.widget.CursorAdapter#CursorAdapter(android.content.Context, * android.database.Cursor, int)} constructor <em>without</em> passing * in either {@link android.widget.CursorAdapter#FLAG_AUTO_REQUERY} * or {@link android.widget.CursorAdapter#FLAG_REGISTER_CONTENT_OBSERVER} * (that is, use 0 for the flags argument). This prevents the CursorAdapter * from doing its own observing of the Cursor, which is not needed since * when a change happens you will get a new Cursor throw another call * here. * <li> The Loader will release the data once it knows the application * is no longer using it. For example, if the data is * a {@link android.database.Cursor} from a {@link android.content.CursorLoader}, * you should not call close() on it yourself. If the Cursor is being placed in a * {@link android.widget.CursorAdapter}, you should use the * {@link android.widget.CursorAdapter#swapCursor(android.database.Cursor)} * method so that the old Cursor is not closed. * </ul> * * @param loader The Loader that has finished. * @param data The data generated by the Loader. */ @Override public void onLoadFinished(@NotNull Loader<NVRAMInfo> loader, @Nullable NVRAMInfo data) { //Set tiles Log.d(LOG_TAG, "onLoadFinished: loader=" + loader + " / data=" + data); layout.findViewById(R.id.tile_status_wan_config_loading_view).setVisibility(View.GONE); layout.findViewById(R.id.tile_status_wan_config_gridLayout).setVisibility(View.VISIBLE); if (data == null) { data = new NVRAMInfo().setException(new DDWRTNoDataException("No Data!")); } @NotNull final TextView errorPlaceHolderView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_error); @Nullable final Exception exception = data.getException(); if (!(exception instanceof DDWRTTileAutoRefreshNotAllowedException)) { if (exception == null) { errorPlaceHolderView.setVisibility(View.GONE); } //Connection Type @NotNull final TextView wanConnTypeView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_connection_type); final String wanProto = data.getProperty(NVRAMInfo.WAN_PROTO, "-"); @NotNull final String wanConnectionTypeManual; if ("ppoe".equalsIgnoreCase(wanProto)) { wanConnectionTypeManual = "PPoE"; } else if ("3g".equalsIgnoreCase(wanProto)) { wanConnectionTypeManual = "3G/UMTS"; //Unhide 3g signal text @NotNull final TextView wan3gSignalFieldView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_3g_signal_field); @NotNull final TextView wan3gSignalSeparatorView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_3g_signal_separator); @NotNull final TextView wan3gSignalView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_3g_signal); wan3gSignalFieldView.setVisibility(View.VISIBLE); wan3gSignalSeparatorView.setVisibility(View.VISIBLE); wan3gSignalView.setVisibility(View.VISIBLE); wan3gSignalView.setText(data.getProperty(NVRAMInfo.WAN_3_G_SIGNAL, "-")); } else if ("heartbeat".equalsIgnoreCase(wanProto)) { wanConnectionTypeManual = "Heartbeat Signal"; } else if ("disabled".equalsIgnoreCase(wanProto)) { wanConnectionTypeManual = "*Disabled*"; } else { wanConnectionTypeManual = (wanProto != null ? wanProto.toUpperCase() : "-"); } wanConnTypeView.setText(wanConnectionTypeManual); //Connection Uptime @NotNull final TextView wanUptimeView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_connection_uptime); wanUptimeView.setText(data.getProperty(NVRAMInfo.WAN_CONNECTION_UPTIME, "-")); //MAC @NotNull final TextView wanMacView = (TextView) this.layout.findViewById(R.id.tile_status_wan_config_wan_mac); wanMacView.setText(data.getProperty(NVRAMInfo.WAN_HWADDR, "-")); //IP @NotNull final TextView wanIPView = (TextView) this.layout.findViewById(R.id.tile_status_wan_config_wan_ip); wanIPView.setText(data.getProperty(NVRAMInfo.WAN_IPADDR, "-")); //Subnet @NotNull final TextView wanSubnetView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_subnet_mask); wanSubnetView.setText(data.getProperty(NVRAMInfo.WAN_NETMASK, "-")); //Gateway @NotNull final TextView wanGatewayView = (TextView) this.layout .findViewById(R.id.tile_status_wan_config_subnet_gateway); wanGatewayView.setText(data.getProperty(NVRAMInfo.WAN_GATEWAY, "-")); //DNS @NotNull final TextView wanDNSView = (TextView) this.layout.findViewById(R.id.tile_status_wan_config_dns); final String property = data.getProperty(NVRAMInfo.WAN_DNS, "-"); wanDNSView.setText(property != null ? property.replaceAll(" ", ", ") : "-"); } if (exception != null && !(exception instanceof DDWRTTileAutoRefreshNotAllowedException)) { //noinspection ThrowableResultOfMethodCallIgnored final Throwable rootCause = Throwables.getRootCause(exception); errorPlaceHolderView.setText("Error: " + (rootCause != null ? rootCause.getMessage() : "null")); final Context parentContext = this.mParentFragmentActivity; errorPlaceHolderView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(final View v) { //noinspection ThrowableResultOfMethodCallIgnored if (rootCause != null) { Toast.makeText(parentContext, rootCause.getMessage(), Toast.LENGTH_LONG).show(); } } }); errorPlaceHolderView.setVisibility(View.VISIBLE); } doneWithLoaderInstance(this, loader, R.id.tile_status_wan_config_togglebutton_title, R.id.tile_status_wan_config_togglebutton_separator); Log.d(LOG_TAG, "onLoadFinished(): done loading!"); } @Nullable @Override protected OnClickIntent getOnclickIntent() { //TODO return null; } }