watch tls files

[sdc.git] / catalog-be / src / main / java / org / openecomp / sdc / be / listen / BEAppContextListener.java

diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/listen/BEAppContextListener.java b/catalog-be/src/main/java/org/openecomp/sdc/be/listen/BEAppContextListener.java
index 7d9de79..00d4e43 100644 (file)
--- a/catalog-be/src/main/java/org/openecomp/sdc/be/listen/BEAppContextListener.java
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/listen/BEAppContextListener.java
@@ -7,9 +7,9 @@
  * 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.
@@ -17,9 +17,24 @@
  * limitations under the License.
  * ============LICENSE_END=========================================================
  */
-
 package org.openecomp.sdc.be.listen;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletContextEvent;
+import javax.servlet.ServletContextListener;
+
+import org.apache.commons.io.filefilter.FileFilterUtils;
+import org.apache.commons.io.filefilter.IOFileFilter;
+import org.apache.commons.io.monitor.FileAlterationListenerAdaptor;
+import org.apache.commons.io.monitor.FileAlterationMonitor;
+import org.apache.commons.io.monitor.FileAlterationObserver;
 import org.openecomp.sdc.be.config.ConfigurationManager;
 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
 import org.openecomp.sdc.be.monitoring.BeMonitoringService;
@@ -28,45 +43,29 @@ import org.openecomp.sdc.common.impl.ExternalConfiguration;
 import org.openecomp.sdc.common.listener.AppContextListener;
 import org.openecomp.sdc.common.log.wrappers.Logger;
 
-import javax.servlet.ServletContext;
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.jar.Attributes;
-import java.util.jar.Manifest;
-
 public class BEAppContextListener extends AppContextListener implements ServletContextListener {
 
     private static final String MANIFEST_FILE_NAME = "/META-INF/MANIFEST.MF";
     private static final Logger log = Logger.getLogger(BEAppContextListener.class);
 
     public void contextInitialized(ServletContextEvent context) {
-
         super.contextInitialized(context);
-
         ConfigurationManager configurationManager = new ConfigurationManager(ExternalConfiguration.getConfigurationSource());
         log.debug("loading configuration from configDir: {} appName: {}", ExternalConfiguration.getConfigDir(), ExternalConfiguration.getAppName());
-
         context.getServletContext().setAttribute(Constants.CONFIGURATION_MANAGER_ATTR, configurationManager);
-
         WebAppContextWrapper webAppContextWrapper = new WebAppContextWrapper();
         context.getServletContext().setAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR, webAppContextWrapper);
-
         context.getServletContext().setAttribute(Constants.ASDC_RELEASE_VERSION_ATTR, getVersionFromManifest(context));
-
         // Monitoring service
         BeMonitoringService bms = new BeMonitoringService(context.getServletContext());
         bms.start(configurationManager.getConfiguration().getSystemMonitoring().getProbeIntervalInSeconds(15));
-
+        initTlsFileMonitoring();
         log.debug("After executing {}", this.getClass());
-
     }
 
     private String getVersionFromManifest(ServletContextEvent context) {
         ServletContext servletContext = context.getServletContext();
         InputStream inputStream = servletContext.getResourceAsStream(MANIFEST_FILE_NAME);
-
         String version = null;
         try {
             Manifest mf = new Manifest(inputStream);
@@ -77,11 +76,51 @@ public class BEAppContextListener extends AppContextListener implements ServletC
             } else {
                 log.info("ASDC version from MANIFEST is {}", version);
             }
-
         } catch (IOException e) {
             log.warn("failed to read ASDC version from MANIFEST", e);
         }
         return version;
     }
-
+    
+    private void initTlsFileMonitoring() {
+        final Map<String, IOFileFilter> tlsFileFilters = createTlsFileFilters();
+        if (!tlsFileFilters.isEmpty()) {
+            final TlsFileChangeHandler tlsFileChangeHandler = new TlsFileChangeHandler();
+            tlsFileFilters.entrySet().stream().forEach(entry -> listenForChanges(entry.getKey(), tlsFileChangeHandler, entry.getValue()));
+        }
+    }
+    
+    private Map<String, IOFileFilter> createTlsFileFilters() {        
+        final Map<String, IOFileFilter> filters = new HashMap<>();
+        addFilter(filters, ConfigurationManager.getConfigurationManager().getConfiguration().getTlsCert());
+        addFilter(filters, ConfigurationManager.getConfigurationManager().getConfiguration().getTlsKey());
+        addFilter(filters, ConfigurationManager.getConfigurationManager().getConfiguration().getCaCert());
+        return filters;
+    }
+    
+    private void addFilter(final Map<String, IOFileFilter> filters, final String path) {
+        if (path != null) {
+            final File file = new File(path);
+            final IOFileFilter caCertFileFilter =
+                    FileFilterUtils.and(FileFilterUtils.fileFileFilter(), FileFilterUtils.nameFileFilter(file.getName()));
+            
+            if (filters.containsKey(file.getParent())) {
+                filters.put(file.getParent(), FileFilterUtils.or(filters.get(file.getParent()), caCertFileFilter));
+            } else {
+                filters.put(file.getParent(), caCertFileFilter);  
+            }
+        }
+    }
+    
+    private void listenForChanges(String path, FileAlterationListenerAdaptor changeListener, IOFileFilter ioFileFilter) {
+        FileAlterationMonitor monitor = new FileAlterationMonitor();
+        final FileAlterationObserver observer = new FileAlterationObserver(path, ioFileFilter);
+        observer.addListener(changeListener);
+        monitor.addObserver(observer);
+        try {
+            monitor.start();
+        } catch (final Exception exception) {
+            log.error("Error starting monitoring of TLS files", exception);
+        }
+    }
 }