Java tutorial
/* * JBoss Admin * Copyright 2013, Christos Vasilakis, and individual contributors * * 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 org.cvasilak.jboss.mobile.app.fragments; import android.support.v7.app.ActionBar; import android.graphics.Color; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.support.v7.app.ActionBarActivity; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.TextView; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import org.cvasilak.jboss.mobile.app.JBossAdminApplication; import org.cvasilak.jboss.mobile.app.R; import org.cvasilak.jboss.mobile.app.fragments.dialogs.ErrorDialogFragment; import org.cvasilak.jboss.mobile.app.fragments.dialogs.ProgressDialogFragment; import org.cvasilak.jboss.mobile.app.model.Metric; import org.cvasilak.jboss.mobile.app.net.Callback; import org.cvasilak.jboss.mobile.app.net.JBossOperationsManager.JMSType; import org.cvasilak.jboss.mobile.app.util.commonsware.MergeAdapter; import org.cvasilak.jboss.mobile.app.util.listview.adapters.MetricsAdapter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class JMSTopicMetricsViewFragment extends ListFragment { private static final String TAG = JMSTopicMetricsViewFragment.class.getSimpleName(); private JBossAdminApplication application; private List<Metric> inFlightMetrics; private List<Metric> msgProcessedMetrics; private List<Metric> subscriptionMetrics; private String topicName; public static JMSTopicMetricsViewFragment newInstance(String name) { JMSTopicMetricsViewFragment f = new JMSTopicMetricsViewFragment(); Bundle args = new Bundle(); args.putString("topicName", name); f.setArguments(args); return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); this.topicName = getArguments().getString("topicName"); application = (JBossAdminApplication) getActivity().getApplication(); inFlightMetrics = new ArrayList<Metric>(); inFlightMetrics.add(new Metric("Messages In Topic", "message-count")); inFlightMetrics.add(new Metric("In Delivery", "delivering-count")); msgProcessedMetrics = new ArrayList<Metric>(); msgProcessedMetrics.add(new Metric("Messages Added", "messages-added")); msgProcessedMetrics.add(new Metric("Durable Messages", "durable-message-count")); msgProcessedMetrics.add(new Metric("NoN-Durable Messages", "non-durable-message-count")); subscriptionMetrics = new ArrayList<Metric>(); subscriptionMetrics.add(new Metric("Number of Subscriptions", "subscription-count")); subscriptionMetrics.add(new Metric("Durable Subscribers", "durable-subscription-count")); subscriptionMetrics.add(new Metric("Non-Durable Subscribers", "non-durable-subscription-count")); setHasOptionsMenu(true); refresh(); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ActionBar bar = ((ActionBarActivity) getActivity()).getSupportActionBar(); bar.setTitle(topicName); MergeAdapter adapter = new MergeAdapter(); TextView sectionHeader; // Section: In-Flight Messages sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("In-Flight Messages"); adapter.addView(sectionHeader); MetricsAdapter inFlightMetricsAdapter = new MetricsAdapter(getActivity(), inFlightMetrics); adapter.addAdapter(inFlightMetricsAdapter); // Section: Messages Processed sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("Messages Processed"); adapter.addView(sectionHeader); MetricsAdapter msgProcessedMetricsAdapter = new MetricsAdapter(getActivity(), msgProcessedMetrics); adapter.addAdapter(msgProcessedMetricsAdapter); // Section: Consumer sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("Subscriptions"); adapter.addView(sectionHeader); MetricsAdapter subscriptionerMetricsAdapter = new MetricsAdapter(getActivity(), subscriptionMetrics); adapter.addAdapter(subscriptionerMetricsAdapter); setListAdapter(adapter); } @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() { ProgressDialogFragment.showDialog(getActivity(), R.string.queryingServer); application.getOperationsManager().fetchJMSQueueMetrics(topicName, JMSType.TOPIC, new Callback() { @Override public void onSuccess(JsonElement reply) { ProgressDialogFragment.dismissDialog(getActivity()); JsonObject jsonObj = reply.getAsJsonObject(); Map<String, String> info = new HashMap<String, String>(); // common metrics int msgCount = jsonObj.getAsJsonPrimitive("message-count").getAsInt(); int delivCount = jsonObj.getAsJsonPrimitive("delivering-count").getAsInt(); float delivPerc = (msgCount != 0 ? ((float) delivCount / msgCount) * 100 : 0); int msgAdded = jsonObj.getAsJsonPrimitive("messages-added").getAsInt(); info.put("message-count", String.format("%d", msgCount)); info.put("delivering-count", String.format("%d (%.0f%%)", delivCount, delivPerc)); info.put("messages-added", String.format("%d", msgAdded)); for (Metric metric : inFlightMetrics) { metric.setValue(info.get(metric.getKey())); } int durCount = jsonObj.getAsJsonPrimitive("durable-message-count").getAsInt(); float durPerc = (msgAdded != 0 ? ((float) durCount / msgAdded) * 100 : 0); int nonDurCount = jsonObj.getAsJsonPrimitive("non-durable-message-count").getAsInt(); float nonDurPerc = (msgAdded != 0 ? ((float) nonDurCount / msgAdded) * 100 : 0); int subCount = jsonObj.getAsJsonPrimitive("subscription-count").getAsInt(); int durSubCount = jsonObj.getAsJsonPrimitive("durable-subscription-count").getAsInt(); int nonDurSubCount = jsonObj.getAsJsonPrimitive("non-durable-subscription-count").getAsInt(); info.put("durable-message-count", String.format("%d (%.0f%%)", durCount, durPerc)); info.put("non-durable-message-count", String.format("%d (%.0f%%)", nonDurCount, nonDurPerc)); info.put("subscription-count", String.format("%d", subCount)); info.put("durable-subscription-count", String.format("%d", durSubCount)); info.put("non-durable-subscription-count", String.format("%d", nonDurSubCount)); for (Metric metric : msgProcessedMetrics) { metric.setValue(info.get(metric.getKey())); } for (Metric metric : subscriptionMetrics) { metric.setValue(info.get(metric.getKey())); } // refresh table ((MergeAdapter) getListAdapter()).notifyDataSetChanged(); } @Override public void onFailure(Exception e) { ProgressDialogFragment.dismissDialog(getActivity()); ErrorDialogFragment.showDialog(getActivity(), e.getMessage()); } }); } }