| /* |
| * $Id$ |
| * |
| * 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.struts2.osgi.admin.actions; |
| |
| import com.opensymphony.xwork2.ActionSupport; |
| import com.opensymphony.xwork2.config.Configuration; |
| import com.opensymphony.xwork2.config.entities.PackageConfig; |
| import com.opensymphony.xwork2.inject.Inject; |
| import org.apache.struts2.osgi.BundleAccessor; |
| import org.apache.struts2.osgi.host.OsgiHost; |
| import org.apache.struts2.osgi.StrutsOsgiListener; |
| import org.apache.struts2.action.ServletContextAware; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleException; |
| |
| import javax.servlet.ServletContext; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Collections; |
| import java.util.Comparator; |
| |
| public class BundlesAction extends ActionSupport implements ServletContextAware { |
| |
| private String id; |
| |
| private BundleAccessor bundleAccessor; |
| private Configuration configuration; |
| private OsgiHost osgiHost; |
| |
| public BundlesAction() { |
| } |
| |
| public String index() { |
| return SUCCESS; |
| } |
| |
| public String view() { |
| return SUCCESS; |
| } |
| |
| public String start() throws BundleException { |
| clearErrorsAndMessages(); |
| addActionMessage("Start - OSGi Host: " + osgiHost + ", ID: " + id); |
| |
| Bundle bundle = osgiHost.getBundles().get(id); |
| try { |
| bundle.start(); |
| |
| //start() fires a BundleEvent.STARTED, which loads the config |
| //we need to wait until the config is loaded from that bundle but |
| //there no easy way/elegant way to know if the bundle was processed already |
| Thread.sleep(1000); |
| } catch (Exception e) { |
| addActionError("Exception: " + e.toString() + " (" + e.getMessage() + ")"); |
| } |
| |
| return view(); |
| } |
| |
| public String stop() throws BundleException { |
| clearErrorsAndMessages(); |
| addActionMessage("Stop - OSGi Host: " + osgiHost + ", ID: " + id); |
| |
| Bundle bundle = osgiHost.getBundles().get(id); |
| try { |
| bundle.stop(); |
| } catch (Exception e) { |
| addActionError("Exception: " + e.toString() + " (" + e.getMessage() + ")"); |
| } |
| |
| return view(); |
| } |
| |
| public String update() throws BundleException { |
| clearErrorsAndMessages(); |
| addActionMessage("Update - OSGi Host: " + osgiHost + ", ID: " + id); |
| |
| Bundle bundle = osgiHost.getBundles().get(id); |
| try { |
| bundle.update(); |
| } catch (Exception e) { |
| addActionError("Exception: " + e.toString() + " (" + e.getMessage() + ")"); |
| } |
| |
| return view(); |
| } |
| |
| public boolean isStrutsEnabled(Bundle bundle) { |
| return "true".equalsIgnoreCase((String) bundle.getHeaders().get(OsgiHost.OSGI_HEADER_STRUTS_ENABLED)); |
| } |
| |
| public String getId() { |
| return id; |
| } |
| |
| public void setId(String id) { |
| this.id = id; |
| } |
| |
| public Bundle getBundle() { |
| return osgiHost.getBundles().get(id); |
| } |
| |
| public List<PackageConfig> getPackages() { |
| List<PackageConfig> pkgs = new ArrayList<>(); |
| Bundle bundle = getBundle(); |
| if (bundle.getState() == Bundle.ACTIVE) { |
| bundleAccessor.getPackagesByBundle(bundle).stream().map( |
| name -> configuration.getPackageConfig(name)).filter( |
| packageConfig -> (packageConfig != null)).forEachOrdered(packageConfig -> { |
| pkgs.add(packageConfig); |
| }); |
| } |
| return pkgs; |
| } |
| |
| public ArrayList<String> getHeaderKeys() { |
| return Collections.list(getBundle().getHeaders().keys()); |
| } |
| |
| public Collection<Bundle> getBundles() { |
| List<Bundle> bundles = new ArrayList(osgiHost.getBundles().values()); |
| Collections.sort(bundles, (Bundle bundle1, Bundle bundle2) -> { |
| boolean bundle1StrutsEnabled = isStrutsEnabled(bundle1); |
| boolean bundle2StrutsEnabled = isStrutsEnabled(bundle2); |
| |
| if ((bundle1StrutsEnabled && bundle2StrutsEnabled) || (!bundle1StrutsEnabled && !bundle2StrutsEnabled)) { |
| return bundle1.getSymbolicName().compareTo(bundle2.getSymbolicName()); |
| } else { |
| return bundle1StrutsEnabled ? -1 : 1; |
| } |
| }); |
| return bundles; |
| } |
| |
| public String displayProperty(Object obj) { |
| if (obj.getClass().isArray()) { |
| return Arrays.asList((Object[])obj).toString(); |
| } else { |
| return obj.toString(); |
| } |
| } |
| |
| public String getBundleState(Bundle bundle) { |
| switch (bundle.getState()) { |
| case Bundle.ACTIVE : return "Active"; |
| case Bundle.INSTALLED : return "Installed"; |
| case Bundle.RESOLVED : return "Resolved"; |
| case Bundle.STARTING : return "Starting"; |
| case Bundle.STOPPING : return "Stopping"; |
| case Bundle.UNINSTALLED : return "Uninstalled"; |
| default : throw new IllegalStateException("Invalid state"); |
| } |
| } |
| |
| public boolean isAllowedAction(Bundle bundle, String val) { |
| int state = -1; |
| try { |
| state = bundle.getState(); |
| } catch (Exception e) { |
| addActionError("Unable to determine bundle state. Exception: " + e.toString() + " (" + e.getMessage() + ")"); |
| return false; |
| } |
| |
| if (val != null) { |
| switch (val) { |
| case "start": |
| return state == Bundle.RESOLVED; |
| case "stop": |
| return state == Bundle.ACTIVE; |
| case "update": |
| return state == Bundle.ACTIVE || state == Bundle.INSTALLED || state == Bundle.RESOLVED; |
| default: |
| break; |
| } |
| } |
| throw new IllegalArgumentException("Invalid state"); |
| } |
| |
| @Inject |
| public void setConfiguration(Configuration configuration) { |
| this.configuration = configuration; |
| } |
| |
| @Inject |
| public void setBundleAccessor(BundleAccessor bundleAccessor) { |
| this.bundleAccessor = bundleAccessor; |
| } |
| |
| @Override |
| public void withServletContext(ServletContext servletContext) { |
| osgiHost = (OsgiHost) servletContext.getAttribute(StrutsOsgiListener.OSGI_HOST); |
| } |
| } |