gerrit.onap Code Review - ccsdk/features.git/blob

   1 /*******************************************************************************
   2  * ============LICENSE_START========================================================================
   3  * ONAP : ccsdk feature sdnr wt
   4  * =================================================================================================
   5  * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
   6  * =================================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   8  * in compliance with the License. You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software distributed under the License
  13  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  14  * or implied. See the License for the specific language governing permissions and limitations under
  15  * the License.
  16  * ============LICENSE_END==========================================================================
  17  ******************************************************************************/
  18 package org.onap.ccsdk.features.sdnr.wt.odlux;
  19
  20 import java.io.BufferedReader;
  21 import java.io.IOException;
  22 import java.io.InputStreamReader;
  23 import java.net.URL;
  24 import java.util.ArrayList;
  25 import java.util.Comparator;
  26 import java.util.List;
  27 import java.util.regex.Matcher;
  28 import java.util.regex.Pattern;
  29 import org.onap.ccsdk.features.sdnr.wt.odlux.model.bundles.OdluxBundle;
  30 import org.onap.ccsdk.features.sdnr.wt.odlux.model.bundles.OdluxBundleList;
  31 import org.onap.ccsdk.features.sdnr.wt.odlux.model.bundles.OdluxBundleLoaderImpl;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 public class IndexOdluxBundle extends OdluxBundle {
  36
  37         private static final String LR = "\n";
  38         private static Logger LOG = LoggerFactory.getLogger(IndexOdluxBundle.class);
  39         private static final String BUNDLENAME_APP = "run";
  40         private static final String regexRequire = "require\\(\\[(\"" + BUNDLENAME_APP + "\")\\]";
  41         private static final String regexFunction = "function[\\ ]*\\((" + BUNDLENAME_APP + ")\\)[\\ ]*\\{";
  42         private static final String regexFunctionBody = "(" + BUNDLENAME_APP + "\\.runApplication\\(\\);)";
  43         private static final Pattern patternRequire = Pattern.compile(regexRequire);
  44         private static final Pattern patternFunction = Pattern.compile(regexFunction);
  45         private static final Pattern patternFunctionBody = Pattern.compile(regexFunctionBody);
  46
  47         public IndexOdluxBundle() {
  48                 super(null, BUNDLENAME_APP);
  49
  50         }
  51         @Override
  52         protected String loadFileContent(URL url)
  53         {
  54                 return this.loadFileContent(url, null);
  55         }
  56
  57         protected String loadFileContent(URL url, List<String> bundles) {
  58                 if (url == null)
  59                         return null;
  60                 LOG.debug("try to load res " + url.toString());
  61                 StringBuilder sb = new StringBuilder();
  62                 Matcher matcher;
  63                 BufferedReader in;
  64                 try {
  65                         in = new BufferedReader(new InputStreamReader(url.openStream()));
  66
  67                         String inputLine;
  68                         if (bundles == null) {
  69                                 bundles = this.getLoadedBundles();
  70                         }
  71                         while ((inputLine = in.readLine()) != null) {
  72                                 if (url.getFile().endsWith("index.html")) {
  73                                         matcher = patternRequire.matcher(inputLine);
  74                                         if (matcher.find()) {
  75                                                 inputLine = inputLine.substring(0, matcher.start(1)) + "\"" + String.join("\",\"", bundles)
  76                                                                 + "\"" + inputLine.substring(matcher.end(1));
  77                                         }
  78                                         matcher = patternFunction.matcher(inputLine);
  79                                         if (matcher.find()) {
  80                                                 inputLine = inputLine.substring(0, matcher.start(1)) + String.join(",", bundles)
  81                                                                 + inputLine.substring(matcher.end(1));
  82                                         }
  83                                         matcher = patternFunctionBody.matcher(inputLine);
  84                                         if (matcher.find()) {
  85                                                 String hlp = "";
  86                                                 for (String bundle : bundles) {
  87                                                         if (!bundle.equals(BUNDLENAME_APP))
  88                                                                 hlp += bundle + ".register();" + LR;
  89                                                 }
  90                                                 inputLine = inputLine.substring(0, matcher.start(1)) + hlp
  91                                                                 + inputLine.substring(matcher.start(1));
  92                                         }
  93                                 }
  94                                 sb.append(inputLine + LR);
  95                         }
  96                         in.close();
  97                 } catch (IOException e) {
  98                         LOG.warn("could not load resfile " + url.toString() + ": " + e.getMessage());
  99                         return null;
 100                 }
 101
 102                 return sb.toString();
 103         }
 104
 105         private List<String> getLoadedBundles() {
 106                 List<OdluxBundle> bundles = OdluxBundleLoaderImpl.getInstance().getBundles();
 107                 List<String> list = new ArrayList<String>();
 108                 bundles.sort(sortorderbundlecomparator);
 109                 for (OdluxBundle b : bundles) {
 110                         list.add(b.getBundleName());
 111                 }
 112                 list.add(this.getBundleName());
 113                 return list;
 114         }
 115
 116         private final Comparator<OdluxBundle> sortorderbundlecomparator = new Comparator<OdluxBundle>() {
 117
 118                 @Override
 119                 public int compare(OdluxBundle arg0, OdluxBundle arg1) {
 120
 121                         int diff = arg0.getIndex() - arg1.getIndex();
 122                         return diff > 0 ? 1 : diff < 0 ? -1 : 0;
 123                 }
 124         };
 125
 126         public String getResourceFileContent(String fn, List<String> bundleNames) {
 127                 return this.loadFileContent(this.getResource(fn),bundleNames);
 128         }
 129         public Comparator<OdluxBundle> getBundleSorter() {
 130                 return this.sortorderbundlecomparator;
 131         }
 132 }