org.argeo.slc/src/main/java/org/argeo/slc/ant/spring/OverrideArg.java

   1 package org.argeo.slc.ant.spring;
   2
   3 import org.apache.tools.ant.BuildException;
   4
   5 /** Ant type allowing to override bean properties. */
   6 public class OverrideArg extends AbstractSpringArg {
   7         private String name;
   8         private Object value;
   9
  10         /** The nbame of the property to override. */
  11         public String getName() {
  12                 return name;
  13         }
  14
  15         public void setName(String name) {
  16                 this.name = name;
  17         }
  18
  19         /** Both value and bean cannot be set. */
  20         public void setValue(String value) {
  21                 if (getBean() != null) {
  22                         throw new BuildException(
  23                                         "Cannot set both 'bean' and 'value' attributes.");
  24                 }
  25                 this.value = value;
  26         }
  27
  28         @Override
  29         public void setBean(String bean) {
  30                 if (value != null) {
  31                         throw new BuildException(
  32                                         "Cannot set both 'bean' and 'value' attributes.");
  33                 }
  34                 super.setBean(bean);
  35         }
  36
  37         /**
  38          * The related object: the value if a value had been set or an instance of
  39          * the bean if not.
  40          */
  41         public Object getObject() {
  42                 if (value != null) {
  43                         return value;
  44                 } else if (getBean() != null) {
  45                         return getBeanInstance();
  46                 } else {
  47                         throw new BuildException("Value or bean not set.");
  48                 }
  49         }
  50
  51 }