bundles/org.simantics.databoard/src/org/simantics/databoard/binding/classfactory/ImmutableClassesFactory.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.databoard.binding.classfactory;
  13
  14 import java.lang.annotation.Annotation;
  15 import java.lang.reflect.Array;
  16 import java.util.ArrayList;
  17 import java.util.List;
  18 import java.util.TreeMap;
  19
  20 import org.simantics.databoard.annotations.ArgumentImpl;
  21 import org.simantics.databoard.annotations.LengthImpl;
  22 import org.simantics.databoard.annotations.MIMETypeImpl;
  23 import org.simantics.databoard.annotations.PatternImpl;
  24 import org.simantics.databoard.annotations.RangeImpl;
  25 import org.simantics.databoard.annotations.UnitImpl;
  26 import org.simantics.databoard.binding.error.BindingConstructionException;
  27 import org.simantics.databoard.binding.mutable.Variant;
  28 import org.simantics.databoard.binding.reflection.BindingRequest;
  29 import org.simantics.databoard.type.ArrayType;
  30 import org.simantics.databoard.type.BooleanType;
  31 import org.simantics.databoard.type.ByteType;
  32 import org.simantics.databoard.type.Datatype;
  33 import org.simantics.databoard.type.DoubleType;
  34 import org.simantics.databoard.type.FloatType;
  35 import org.simantics.databoard.type.IntegerType;
  36 import org.simantics.databoard.type.LongType;
  37 import org.simantics.databoard.type.MapType;
  38 import org.simantics.databoard.type.NumberType;
  39 import org.simantics.databoard.type.StringType;
  40 import org.simantics.databoard.type.VariantType;
  41
  42 public class ImmutableClassesFactory implements TypeClassSubFactory {
  43
  44         public ImmutableClassesFactory() {
  45         }
  46
  47         @Override
  48         public BindingRequest construct(TypeClassFactory mainFactory, Datatype type)
  49         throws BindingConstructionException
  50         {
  51
  52                 if ( type instanceof ArrayType ) {
  53                         List<Annotation> annotations = new ArrayList<Annotation>();
  54                         ArrayType at = (ArrayType) type;
  55                         BindingRequest cbr = construct(mainFactory, at.componentType);
  56                         if ( cbr == null ) {
  57                                 cbr = mainFactory.getClass(at.componentType);
  58                         }
  59
  60                         String length = at.metadata.get(ArrayType.KEY_LENGTH);
  61                         if (length != null) annotations.add( new LengthImpl( length ) );
  62
  63                         if ( cbr.getClazz() != null ) {
  64                                 for (Annotation a : cbr.annotations)
  65                                 {
  66                                         annotations.add( a );
  67                                 }
  68
  69                                 Class<?> arrayClass = Array.newInstance(cbr.getClazz(), 0).getClass();
  70                                 return new BindingRequest( arrayClass, annotations );
  71                         }
  72                 }
  73
  74                 if ( type instanceof MapType ) {
  75                         MapType mt = (MapType) type;
  76                         List<Annotation> annotations = new ArrayList<Annotation>();
  77                         BindingRequest kbr = construct(mainFactory, mt.keyType);
  78                         BindingRequest vbr = construct(mainFactory, mt.valueType);
  79                         if ( kbr == null ) kbr = mainFactory.getClass(mt.keyType);
  80                         if ( vbr == null ) vbr = mainFactory.getClass(mt.valueType);
  81                         if ( kbr.getClazz()!=null && vbr.getClazz()!=null ) {
  82                                 annotations.add( new ArgumentImpl(kbr.getClazz(), vbr.getClazz()) );
  83                                 return new BindingRequest( TreeMap.class, annotations );
  84                         }
  85                 }
  86
  87                 if ( type instanceof StringType ) {
  88                         List<Annotation> annotations = new ArrayList<Annotation>();
  89                         StringType st = (StringType) type;
  90
  91                         String pattern = st.metadata.get(StringType.KEY_PATTERN);
  92                         if (pattern != null) annotations.add( new PatternImpl( pattern ) );
  93
  94                         String mimetype = st.metadata.get(StringType.KEY_MIMETYPE);
  95                         if (mimetype != null) annotations.add( new MIMETypeImpl( mimetype ) );
  96
  97                         String length = st.metadata.get(StringType.KEY_LENGTH);
  98                         if (length != null) annotations.add( new LengthImpl( length ) );
  99
 100                         return new BindingRequest( String.class, annotations );
 101                 }
 102
 103                 if ( type instanceof NumberType ) {
 104                         List<Annotation> annotations = new ArrayList<Annotation>();
 105                         NumberType nt = (NumberType) type;
 106
 107                         String unit = nt.metadata.get(NumberType.KEY_UNIT);
 108                         if (unit != null) annotations.add( new UnitImpl(unit) );
 109
 110                         String range = nt.metadata.get(NumberType.KEY_RANGE);
 111                         if (range != null) annotations.add( new RangeImpl(range) );
 112
 113                         Class<?> clazz = null;
 114                         if ( type instanceof IntegerType ) clazz = int.class;
 115                         if ( type instanceof ByteType ) clazz = byte.class;
 116                         if ( type instanceof LongType ) clazz = long.class;
 117                         if ( type instanceof DoubleType ) clazz = double.class;
 118                         if ( type instanceof FloatType ) clazz = float.class;
 119
 120                         return new BindingRequest( clazz, annotations );
 121                 }
 122
 123                 if ( type instanceof BooleanType ) {
 124                         return new BindingRequest( boolean.class );
 125                 }
 126
 127                 if ( type instanceof VariantType ) {
 128                         return new BindingRequest( Variant.class );
 129                 }
 130
 131                 return null;
 132         }
 133
 134 }