| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.slider.server.appmaster.web.view; |
| |
| import com.google.inject.Inject; |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.hadoop.yarn.webapp.hamlet.Hamlet; |
| import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV; |
| import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.UL; |
| import org.apache.hadoop.yarn.webapp.view.HtmlBlock; |
| import org.apache.slider.api.StatusKeys; |
| import org.apache.slider.common.tools.SliderUtils; |
| import org.apache.slider.providers.ProviderService; |
| import org.apache.slider.server.appmaster.state.StateAccessForProviders; |
| import org.apache.slider.server.appmaster.web.WebAppApi; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| /** |
| * |
| */ |
| public class IndexBlock extends HtmlBlock { |
| private static final String HBASE = "HBase"; |
| private static final Logger log = LoggerFactory.getLogger(IndexBlock.class); |
| |
| private StateAccessForProviders appState; |
| private ProviderService providerService; |
| |
| @Inject |
| public IndexBlock(WebAppApi slider) { |
| this.appState = slider.getAppState(); |
| this.providerService = slider.getProviderService(); |
| } |
| |
| @Override |
| protected void render(Block html) { |
| final String providerName = getProviderName(); |
| |
| doIndex(html, providerName); |
| } |
| |
| // An extra method to make testing easier since you can't make an instance of Block |
| protected void doIndex(Hamlet html, String providerName) { |
| DIV<Hamlet> div = html.div("general_info").h1("index_header", providerName + " cluster: '" + appState.getClusterStatus().name + "'"); |
| |
| UL<DIV<Hamlet>> ul = div.ul(); |
| |
| ul.li("Total number of containers for cluster: " + appState.getNumOwnedContainers()); |
| ul.li("Cluster created: " + getInfoAvoidingNulls(StatusKeys.INFO_CREATE_TIME_HUMAN)); |
| ul.li("Cluster last flexed: " + getInfoAvoidingNulls(StatusKeys.INFO_FLEX_TIME_HUMAN)); |
| ul.li("Cluster running since: " + getInfoAvoidingNulls(StatusKeys.INFO_LIVE_TIME_HUMAN)); |
| ul.li("Cluster HDFS storage path: " + appState.getClusterStatus().dataPath); |
| ul.li("Cluster configuration path: " + appState.getClusterStatus().originConfigurationPath); |
| |
| ul._()._(); |
| |
| html.div("provider_info").h3(providerName + " specific information"); |
| ul = div.ul(); |
| addProviderServiceOptions(providerService, ul); |
| ul._()._(); |
| } |
| |
| private String getProviderName() { |
| String providerServiceName = providerService.getName().toLowerCase(); |
| |
| // Get HBase properly capitalized |
| if (providerServiceName.contains("hbase")) { |
| return HBASE; |
| } |
| |
| return StringUtils.capitalize(providerServiceName); |
| } |
| |
| private String getInfoAvoidingNulls(String key) { |
| String createTime = appState.getClusterStatus().getInfo(key); |
| |
| return null == createTime ? "N/A" : createTime; |
| } |
| |
| protected void addProviderServiceOptions(ProviderService providerService, UL<DIV<Hamlet>> ul) { |
| Map<String, String> details = providerService.buildMonitorDetails(appState.getClusterStatus()); |
| if (null == details) { |
| return; |
| } |
| // Loop over each entry, placing the text in the UL, adding an anchor when the URL is non-null/empty |
| for (Entry<String, String> entry : details.entrySet()) { |
| String url = entry.getValue(); |
| if (SliderUtils.isSet(url) ) { |
| ul.li()._(entry.getKey()).a(url, url)._(); |
| } else { |
| ul.li(entry.getKey()); |
| } |
| } |
| } |
| |
| } |