Java tutorial
/* * JBoss Admin * Copyright 2012, Christos Vasilakis, and individual contributors. * See the copyright.txt file in the distribution for a full * listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.cvasilak.jboss.mobile.admin.fragments; import android.app.AlertDialog; import android.app.ProgressDialog; import android.graphics.Color; import android.os.Bundle; import android.util.Log; import android.widget.TextView; import com.actionbarsherlock.app.SherlockListFragment; import com.actionbarsherlock.view.Menu; import com.actionbarsherlock.view.MenuInflater; import com.actionbarsherlock.view.MenuItem; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import org.cvasilak.jboss.mobile.admin.JBossAdminApplication; import org.cvasilak.jboss.mobile.admin.R; import org.cvasilak.jboss.mobile.admin.model.Metric; import org.cvasilak.jboss.mobile.admin.net.Callback; import org.cvasilak.jboss.mobile.admin.util.MetricsAdapter; import org.cvasilak.jboss.mobile.admin.util.commonsware.MergeAdapter; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; public class WebConnectorMetricsViewFragment extends SherlockListFragment { private static final String TAG = WebConnectorMetricsViewFragment.class.getSimpleName(); private JBossAdminApplication application; private ProgressDialog progress; ArrayList<Metric> generalMetrics; ArrayList<Metric> reqPerConnectorMetrics; private String connectorName; public static WebConnectorMetricsViewFragment newInstance(String name) { WebConnectorMetricsViewFragment f = new WebConnectorMetricsViewFragment(); Bundle args = new Bundle(); args.putString("connectorName", name); f.setArguments(args); return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d(TAG, "@onCreate()"); this.connectorName = getArguments().getString("connectorName"); application = (JBossAdminApplication) getActivity().getApplication(); // restore state in case of a configuration change (eg orientation) if (savedInstanceState != null) { generalMetrics = savedInstanceState.getParcelableArrayList("generalMetrics"); reqPerConnectorMetrics = savedInstanceState.getParcelableArrayList("reqPerConnectorMetrics"); } MergeAdapter adapter = new MergeAdapter(); TextView sectionHeader; // Section: General sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("General"); adapter.addView(sectionHeader); if (generalMetrics == null) { generalMetrics = new ArrayList<Metric>(); generalMetrics.add(new Metric("Protocol", "protocol")); generalMetrics.add(new Metric("Bytes Sent", "bytesSent")); generalMetrics.add(new Metric("Bytes Received", "bytesReceived")); } MetricsAdapter generalMetricsAdapter = new MetricsAdapter(getSherlockActivity(), generalMetrics); adapter.addAdapter(generalMetricsAdapter); // Section: Request per Connector sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("Request per Connector"); adapter.addView(sectionHeader); if (reqPerConnectorMetrics == null) { reqPerConnectorMetrics = new ArrayList<Metric>(); reqPerConnectorMetrics.add(new Metric("Request Count", "requestCount")); reqPerConnectorMetrics.add(new Metric("Error Count", "errorCount")); reqPerConnectorMetrics.add(new Metric("Processing Time (ms)", "processingTime")); reqPerConnectorMetrics.add(new Metric("Max Time (ms)", "maxTime")); } MetricsAdapter reqPerConnectorMetricsAdapter = new MetricsAdapter(getSherlockActivity(), reqPerConnectorMetrics); adapter.addAdapter(reqPerConnectorMetricsAdapter); setListAdapter(adapter); // inform runtime that we have an action button (refresh) setHasOptionsMenu(true); // refresh only if the fragment is created // for the first time (no previous state) if (savedInstanceState == null) refresh(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putParcelableArrayList("generalMetrics", generalMetrics); outState.putParcelableArrayList("reqPerConnectorMetrics", reqPerConnectorMetrics); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_refresh, menu); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.refresh) { refresh(); return (true); } return (super.onOptionsItemSelected(item)); } public void refresh() { progress = ProgressDialog.show(getSherlockActivity(), "", getString(R.string.queryingServer)); application.getOperationsManager().fetchWebConnectorMetrics(connectorName, new Callback() { @Override public void onSuccess(JsonElement reply) { progress.dismiss(); JsonObject jsonObj = reply.getAsJsonObject(); Map<String, String> info = new HashMap<String, String>(); long bytesSent = jsonObj.getAsJsonPrimitive("bytesSent").getAsLong(); long bytesReceived = jsonObj.getAsJsonPrimitive("bytesReceived").getAsLong(); info.put("bytesSent", String.format("%d", bytesSent)); info.put("bytesReceived", String.format("%d", bytesReceived)); info.put("protocol", jsonObj.get("protocol").getAsString()); for (Metric metric : generalMetrics) { metric.setValue(info.get(metric.getKey())); } int requestCount = jsonObj.getAsJsonPrimitive("requestCount").getAsInt(); int errorCount = jsonObj.getAsJsonPrimitive("errorCount").getAsInt(); float errorPerc = (requestCount != 0 ? ((float) errorCount / requestCount) * 100 : 0); int processingTime = jsonObj.getAsJsonPrimitive("processingTime").getAsInt(); int maxTime = jsonObj.getAsJsonPrimitive("maxTime").getAsInt(); info.put("requestCount", String.format("%d", requestCount)); info.put("errorCount", String.format("%d (%.0f%%)", errorCount, errorPerc)); info.put("processingTime", String.format("%d", processingTime)); info.put("maxTime", String.format("%d", maxTime)); for (Metric metric : reqPerConnectorMetrics) { metric.setValue(info.get(metric.getKey())); } // refresh table ((MergeAdapter) getListAdapter()).notifyDataSetChanged(); } @Override public void onFailure(Exception e) { progress.dismiss(); AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity()); alertDialog.setTitle(R.string.dialog_error_title).setMessage(e.getMessage()) .setPositiveButton(R.string.dialog_button_Bummer, null).setCancelable(false) .setIcon(android.R.drawable.ic_dialog_alert).show(); } }); } }