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   1 package org.collectionspace.services.common.document;\r
   2 \r
   3 \r
   4 import org.collectionspace.services.common.context.MultipartServiceContext;\r
   5 import org.collectionspace.services.common.context.ServiceContext;\r
   6 import org.collectionspace.services.common.document.DocumentHandler.Action;\r
   7 import org.slf4j.Logger;\r
   8 import org.slf4j.LoggerFactory;\r
   9 \r
  10 // TODO: Auto-generated Javadoc\r
  11 /**\r
  12  * The Class ValidatorHandlerImpl.\r
  13  */\r
  14 public abstract class ValidatorHandlerImpl<IT, OT> implements ValidatorHandler<IT, OT> {\r
  15         \r
  16     /** The logger. */\r
  17     private final Logger logger = LoggerFactory.getLogger(ValidatorHandlerImpl.class);\r
  18     \r
  19     private ServiceContext<IT, OT> ctx;\r
  20     \r
  21     protected ServiceContext<IT, OT> getServiceContext() {\r
  22         return ctx;\r
  23     }\r
  24     \r
  25     // gets reset by calls to setServiceContext() method\r
  26     protected boolean enforceAsserts = true;\r
  27     \r
  28     public boolean getEnforceAsserts() {\r
  29                 return enforceAsserts;\r
  30         }\r
  31 \r
  32         public void setEnforceAsserts(ServiceContext<IT, OT> ctx) {\r
  33                 Boolean disableAssertsAttr = ctx.getServiceBinding().isDisableAsserts();\r
  34                 if (disableAssertsAttr == null) {\r
  35                         enforceAsserts = true;\r
  36                 } else {\r
  37                         enforceAsserts = !disableAssertsAttr.booleanValue();\r
  38                 }\r
  39         }\r
  40 \r
  41         protected void setServiceContext(ServiceContext<IT, OT> ctx) {\r
  42         this.ctx = ctx;\r
  43         \r
  44     }\r
  45     \r
  46     protected void CS_ASSERT(boolean expression, String errorMsg) throws AssertionError {\r
  47         if (expression != true) {\r
  48                 if (errorMsg == null) {\r
  49                         errorMsg = "Validation exception occurred in: " +\r
  50                                         this.getClass().getName();\r
  51                 }\r
  52                 throw new AssertionError(errorMsg);\r
  53         }\r
  54     }\r
  55     \r
  56     protected void CS_ASSERT(boolean expression) throws AssertionError {\r
  57         CS_ASSERT(expression, null);\r
  58     }\r
  59         \r
  60     private void init(ServiceContext<IT, OT> ctx) {\r
  61         setEnforceAsserts(ctx);\r
  62                 setServiceContext(ctx);\r
  63     }\r
  64     \r
  65         /* (non-Javadoc)\r
  66          * @see org.collectionspace.services.common.document.ValidatorHandler#validate(org.collectionspace.services.common.document.DocumentHandler.Action, org.collectionspace.services.common.context.ServiceContext)\r
  67          */\r
  68         @Override\r
  69     public void validate(Action action, ServiceContext<IT, OT> ctx)\r
  70                 throws InvalidDocumentException {\r
  71                 init(ctx);\r
  72                 \r
  73                 switch (action) {\r
  74                         case CREATE:\r
  75                                 handleCreate();\r
  76                                 break;\r
  77                         case GET:\r
  78                                 handleGet();\r
  79                                 break;\r
  80                         case GET_ALL:\r
  81                                 handleGetAll();\r
  82                                 break;\r
  83                         case UPDATE:\r
  84                                 handleUpdate();\r
  85                                 break;\r
  86                         case DELETE:\r
  87                                 handleDelete();\r
  88                                 break;\r
  89                         default:\r
  90                                 throw new UnsupportedOperationException("ValidatorHandlerImpl: Unknow action = " +\r
  91                                                 action);\r
  92                 }       \r
  93     }\r
  94         \r
  95         protected boolean enforceAsserts() {\r
  96                 return !ctx.getServiceBinding().isDisableAsserts();\r
  97         }\r
  98         \r
  99     protected Object getCommonPart() {\r
 100         Object result = null;           \r
 101 \r
 102         try {\r
 103                 MultipartServiceContext multiPartCtx = (MultipartServiceContext) getServiceContext();\r
 104                 result = multiPartCtx.getInputPart(ctx.getCommonPartLabel(),\r
 105                                 getCommonPartClass());\r
 106         } catch (Exception e) {\r
 107                 if (logger.isDebugEnabled() == true) {\r
 108                         logger.debug("Could not extract common part from multipart input.", e);\r
 109                 }\r
 110         }\r
 111         \r
 112         return result;          \r
 113     }   \r
 114         \r
 115     abstract protected Class<?> getCommonPartClass();\r
 116     \r
 117         /**\r
 118          * Handle create.\r
 119          *\r
 120          * @param ctx the ctx\r
 121          */\r
 122         abstract protected void handleCreate() throws InvalidDocumentException;\r
 123         \r
 124         /**\r
 125          * Handle get.\r
 126          *\r
 127          * @param ctx the ctx\r
 128          */\r
 129         abstract protected void handleGet() throws InvalidDocumentException;\r
 130         \r
 131         /**\r
 132          * Handle get all.\r
 133          *\r
 134          * @param ctx the ctx\r
 135          */\r
 136         abstract protected void handleGetAll() throws InvalidDocumentException;\r
 137         \r
 138         /**\r
 139          * Handle update.\r
 140          *\r
 141          * @param ctx the ctx\r
 142          */\r
 143         abstract protected void handleUpdate() throws InvalidDocumentException;\r
 144 \r
 145         /**\r
 146          * Handle delete.\r
 147          *\r
 148          * @param ctx the ctx\r
 149          */\r
 150         abstract protected void handleDelete() throws InvalidDocumentException; \r
 151 }