sandbox/argeo.slc.executionflow/src/main/java/org/argeo/slc/executionflow/ExecutionTargetSource.java

   1 package org.argeo.slc.executionflow;
   2
   3 import java.util.Map;
   4
   5 import org.apache.commons.logging.Log;
   6 import org.apache.commons.logging.LogFactory;
   7 import org.argeo.slc.SlcException;
   8 import org.springframework.aop.TargetSource;
   9
  10 public class ExecutionTargetSource implements TargetSource {
  11         private final static Log log = LogFactory
  12                         .getLog(ExecutionTargetSource.class);
  13
  14         private final String name;
  15         private final Class<?> targetClass;
  16         private final ExecutionFlow executionFlow;
  17
  18         public ExecutionTargetSource(ExecutionFlow executionFlow,
  19                         Class<?> targetClass, String name) {
  20                 this.executionFlow = executionFlow;
  21                 this.targetClass = targetClass;
  22                 this.name = name;
  23         }
  24
  25         public Object getTarget() throws Exception {
  26                 if (log.isTraceEnabled())
  27                         log.trace("Getting object " + name);
  28                 Map<String, Object> attributes = executionFlow.getAttributes();
  29                 if (!attributes.containsKey(name))
  30                         throw new SlcException("Key " + name + " is not registered in "
  31                                         + executionFlow);
  32                 Object obj = attributes.get(name);
  33                 if (log.isTraceEnabled())
  34                         log.trace("Target object " + obj);
  35                 return obj;
  36         }
  37
  38         public Class getTargetClass() {
  39                 return targetClass;
  40         }
  41
  42         public boolean isStatic() {
  43                 return false;
  44         }
  45
  46         public void releaseTarget(Object target) throws Exception {
  47                 // TODO Auto-generated method stub
  48
  49         }
  50
  51 }