cdmlib-io/src/main/java/eu/etaxonomy/cdm/io/common/mapping/DbImportTruncatedStringMapper.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.cdm.io.common.mapping;
  12
  13 import java.lang.reflect.InvocationTargetException;
  14 import java.lang.reflect.Method;
  15 import java.sql.SQLException;
  16
  17 import org.apache.log4j.Logger;
  18
  19 import eu.etaxonomy.cdm.io.common.DbImportStateBase;
  20 import eu.etaxonomy.cdm.io.common.ImportHelper;
  21 import eu.etaxonomy.cdm.model.common.CdmBase;
  22
  23 /**
  24  * @author a.mueller
  25  * @created 24.02.2010
  26  * @version 1.0
  27  */
  28 public class DbImportTruncatedStringMapper extends DbSingleAttributeImportMapperBase<DbImportStateBase<?,?>, CdmBase>{
  29
  30         @SuppressWarnings("unused")
  31         private static final Logger logger = Logger.getLogger(DbImportTruncatedStringMapper.class);
  32
  33         /**
  34          * @param dbAttributString
  35          * @param cdmAttributeString
  36          * @return
  37          */
  38         public static DbImportTruncatedStringMapper NewInstance (String dbAttributeString, String cdmAttributeString, String longTextAttribute) {
  39                 boolean obligatory = false;
  40                 Object defaultValue = null;
  41                 return new DbImportTruncatedStringMapper(dbAttributeString, cdmAttributeString, defaultValue, obligatory, longTextAttribute);
  42         }
  43
  44
  45 //      /**
  46 //       * @param cdmAttributeString
  47 //       * @param dbAttributString
  48 //       * @param defaultValue
  49 //       */
  50 //      public static DbImportTruncatedStringMapper NewInstance (String dbAttributString, String cdmAttributeString, Object defaultValue) {
  51 //              boolean obligatory = false;
  52 //              return new  DbImportTruncatedStringMapper(dbAttributString, cdmAttributeString, defaultValue, obligatory);
  53 //      }
  54 //
  55 //      /**
  56 //       * @param cdmAttributeString
  57 //       * @param dbAttributString
  58 //       * @param defaultValue
  59 //       */
  60 //      public static DbImportTruncatedStringMapper NewInstance (String dbAttributeString, String cdmAttributeString, Object defaultValue, boolean obligatory) {
  61 //              return new  DbImportTruncatedStringMapper(dbAttributeString, cdmAttributeString, defaultValue, obligatory);
  62 //      }
  63
  64         private String longTextAttribute;
  65         private int truncatedLength = 255;
  66         private Method longTextMethod;
  67
  68         /**
  69          * @param cdmAttributeString
  70          * @param dbAttributString
  71          * @param defaultValue
  72          */
  73         protected DbImportTruncatedStringMapper(String dbAttributeString, String cdmAttributeString, Object defaultValue, boolean obligatory, String longTextAttribute) {
  74                 super(dbAttributeString, cdmAttributeString, defaultValue, obligatory);
  75                 this.longTextAttribute = longTextAttribute;
  76         }
  77
  78
  79
  80
  81         /* (non-Javadoc)
  82          * @see eu.etaxonomy.cdm.io.common.mapping.DbSingleAttributeImportMapperBase#initialize(eu.etaxonomy.cdm.io.common.DbImportStateBase, java.lang.Class)
  83          */
  84         @Override
  85         public void initialize(DbImportStateBase<?,?> state, Class<? extends CdmBase> destinationClass) {
  86                 super.initialize(state, destinationClass);
  87                 Class<?> parameterType = getTypeClass();
  88                 String methodName = ImportHelper.getSetterMethodName(parameterType, longTextAttribute);
  89                 try {
  90                         longTextMethod = targetClass.getMethod(methodName, parameterType);
  91                 } catch (SecurityException e) {
  92                         throw new RuntimeException(e);
  93                 } catch (NoSuchMethodException e) {
  94                         throw new RuntimeException(e);
  95                 }
  96         }
  97
  98         /* (non-Javadoc)
  99          * @see eu.etaxonomy.cdm.io.common.mapping.DbSingleAttributeImportMapperBase#doInvoke(eu.etaxonomy.cdm.model.common.CdmBase)
 100          */
 101         @Override
 102         protected CdmBase doInvoke(CdmBase cdmBase, Object value) throws SQLException {
 103                 CdmBase result;
 104                 String strValue = (String)value;
 105                 if (strValue != null && strValue.length()>255){
 106                         return invokeTruncatedValue(cdmBase, value);
 107                 }else{
 108                         return super.doInvoke(cdmBase, value);
 109                 }
 110         }
 111
 112
 113
 114
 115         /**
 116          * @param cdmBase
 117          * @param value
 118          * @throws SQLException
 119          */
 120         private CdmBase invokeTruncatedValue(CdmBase cdmBase, Object value) throws SQLException {
 121                 CdmBase result;
 122                 String truncatedValue = ((String)value).substring(0, truncatedLength - 3) + "...";
 123                 result = super.doInvoke(cdmBase, truncatedValue);
 124                 try {
 125                         longTextMethod.invoke(cdmBase, value);
 126                         return result;
 127                 } catch (IllegalArgumentException e) {
 128                         e.printStackTrace();
 129                 } catch (IllegalAccessException e) {
 130                         e.printStackTrace();
 131                 } catch (InvocationTargetException e) {
 132                         e.printStackTrace();
 133                 }
 134                 throw new RuntimeException("Problems when invoking long text method");
 135         }
 136
 137
 138         /* (non-Javadoc)
 139          * @see eu.etaxonomy.cdm.io.common.CdmSingleAttributeMapperBase#getTypeClass()
 140          */
 141         @Override
 142         public Class getTypeClass() {
 143                 return String.class;
 144         }
 145
 146
 147 }