bpmn/MSOCoreBPMN/src/main/java/org/openecomp/mso/bpmn/core/LogTask.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.mso.bpmn.core;
  22
  23 import org.camunda.bpm.engine.delegate.DelegateExecution;
  24 import org.camunda.bpm.engine.delegate.Expression;
  25
  26 import org.openecomp.mso.logger.MsoAlarmLogger;
  27 import org.openecomp.mso.logger.MsoLogger;
  28
  29 /**
  30  * Logs a text message.  The text may contain variable references.
  31  * For example:<br/><br/>
  32  * &nbsp;&nbsp;&nbsp;&nbsp;name=$name, address=$address
  33  * <p>
  34  * Required fields:<br/><br/>
  35  * &nbsp;&nbsp;&nbsp;&nbsp;text: The text to log<br/>
  36  * Optional fields:<br/><br/>
  37  * &nbsp;&nbsp;&nbsp;&nbsp;level: The log level (TRACE, DEBUG, INFO, WARN, ERROR)<br/>
  38  */
  39 public class LogTask extends BaseTask {
  40
  41
  42         private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.BPEL);
  43         private static MsoAlarmLogger alarmLogger = new MsoAlarmLogger();
  44
  45         private Expression text;
  46         private Expression level;
  47
  48         public void execute(DelegateExecution execution) throws Exception {
  49                 String theText = getStringField(text, execution, "text");
  50
  51
  52
  53                         StringBuilder out = new StringBuilder();
  54                         StringBuilder var = new StringBuilder();
  55                         boolean inVar = false;
  56
  57                         int pos = 0;
  58                         int len = theText.length();
  59
  60                         while (pos < len) {
  61                                 char c = theText.charAt(pos++);
  62
  63                                 if (inVar && !Character.isLetterOrDigit(c) && c != '_') {
  64                                         if (var.length() > 0) {
  65                                                 Object value = execution.getVariable(var.toString());
  66
  67                                                 if (value != null) {
  68                                                         out.append(value.toString());
  69                                                 }
  70
  71                                                 var.setLength(0);
  72                                         }
  73
  74                                         inVar = false;
  75                                 }
  76
  77                                 if (c == '$') {
  78                                         inVar = true;
  79                                 } else {
  80                                         if (inVar) {
  81                                                 var.append(c);
  82                                         } else {
  83                                                 out.append(c);
  84                                         }
  85                                 }
  86                         }
  87
  88                         if (inVar && var.length() > 0) {
  89                                 Object value = execution.getVariable(var.toString());
  90                                 if (value != null) {
  91                                         out.append(value.toString());
  92                                 }
  93                         }
  94
  95
  96
  97         }
  98 }