--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2010 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.binding.reflection;
+
+import java.lang.reflect.Array;\r
+import java.util.Iterator;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.adapter.AdaptException;\r
+import org.simantics.databoard.adapter.Adapter;\r
+import org.simantics.databoard.adapter.AdapterConstructionException;\r
+import org.simantics.databoard.binding.ArrayBinding;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.binding.error.UnsupportedOperationException;\r
+import org.simantics.databoard.type.ArrayType;\r
+
+/**
+ * ReflectionArrayBinding binds T[]
+ *
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
+ */
+public class GenericArrayBinding extends ArrayBinding {
+
+ Class<?> clazz;
+ Class<?> componentClass;
+
+ public GenericArrayBinding(Class<?> clazz, ArrayType type, Binding componentBinding) {
+ super(type, componentBinding);
+ this.clazz = clazz;
+ this.type = type;
+ this.componentClass = clazz.getComponentType();
+ }
+
+ @Override
+ public Object create() {
+ return Array.newInstance(componentClass, 0);
+ }
+
+ @Override
+ public Object create(int length, Iterator<Object> values) {
+ Object result = Array.newInstance(componentClass, length);
+ for (int i=0; i<length; i++)
+ Array.set(result, i, values.next());
+ return result;
+ }
+
+ @Override
+ public Object create(Object[] array) throws BindingException {
+ int length = array.length;
+ Object result = Array.newInstance(componentClass, length);
+ System.arraycopy(array, 0, result, 0, length);
+ return result;
+ }\r
+ \r
+ @Override\r
+ public void readFrom(Binding srcBinding, Object src, Object dst)\r
+ throws BindingException {\r
+ try {\r
+ ArrayBinding sb = (ArrayBinding) srcBinding;\r
+ Binding scb = sb.getComponentBinding();\r
+ Binding dcb = getComponentBinding();\r
+ Adapter cloner = dcb.isImmutable() ? Bindings.adapterFactory.getAdapter(scb, dcb, false, true) : null;\r
+ int length = Array.getLength(dst);\r
+ if (length != sb.size(src)) throw new BindingException(clazz.getName()+" is length immutable");\r
+ \r
+ for (int i=0; i<length; i++) {\r
+ if (dcb.isImmutable()) {\r
+ Object sc = sb.get(src, i);\r
+ Object dc = cloner.adapt(sc);\r
+ set(dst, i, dc); \r
+ } else {\r
+ Object dc = Array.get(dst, i);\r
+ Object sc = sb.get(src, i);\r
+ dc = dcb.readFromTry(scb, sc, dc);\r
+ Array.set(dst, i, dc);\r
+ }\r
+ }\r
+ } catch (AdaptException e) {\r
+ throw new BindingException(e);\r
+ } catch (AdapterConstructionException e) {\r
+ throw new BindingException(e);\r
+ }\r
+ }\r
+ \r
+ @Override\r
+ public Object readFromTry(Binding srcBinding, Object src, Object dst)\r
+ throws BindingException {\r
+ try {\r
+ ArrayBinding sb = (ArrayBinding) srcBinding;\r
+ Binding scb = sb.getComponentBinding();\r
+ Binding dcb = getComponentBinding();\r
+ Adapter cloner = Bindings.adapterFactory.getAdapter(scb, dcb, false, true);\r
+ int length = Array.getLength(dst);\r
+ int srcSize = sb.size(src);\r
+ Object d = dst;\r
+ if (length != srcSize || dcb.isImmutable()) {\r
+ d = Array.newInstance(componentClass, srcSize);\r
+ if (dcb.isImmutable()) {\r
+ for (int i=0; i<srcSize; i++) {\r
+ Object sc = sb.get(src, i);\r
+ Object dc = cloner.adapt(sc);\r
+ set(d, i, dc);\r
+ }\r
+ } else {\r
+ int X = Math.min(Array.getLength(dst), srcSize); \r
+ for (int i=0; i<X; i++) {\r
+ Object dc = Array.get(dst, i);\r
+ Object sc = sb.get(src, i);\r
+ dc = dcb.readFromTry(scb, sc, dc);\r
+ Array.set(d, i, dc);\r
+ }\r
+ for (int i=X; i<srcSize; i++) {\r
+ Object sc = sb.get(src, i);\r
+ Object dc = cloner.adapt(sc);\r
+ set(d, i, dc);\r
+ }\r
+ }\r
+ \r
+ } else {\r
+ if (dcb.isImmutable()) {\r
+ for (int i=0; i<length; i++) {\r
+ Object sc = sb.get(src, i);\r
+ Object dc = cloner.adapt(sc);\r
+ set(d, i, dc);\r
+ }\r
+ } else {\r
+ for (int i=0; i<length; i++) {\r
+ Object dc = Array.get(dst, i);\r
+ Object sc = sb.get(src, i);\r
+ dc = dcb.readFromTry(scb, sc, dc);\r
+ Array.set(d, i, dc);\r
+ }\r
+ }\r
+ }\r
+ \r
+ return d;\r
+ } catch (AdaptException e) {\r
+ throw new BindingException(e);\r
+ } catch (AdapterConstructionException e) {\r
+ throw new BindingException(e);\r
+ }\r
+ }
+
+ @Override
+ public Object get(Object array, int index) throws BindingException {
+ if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", "+clazz.getSimpleName()+" expected");
+ return Array.get(array, index);
+ }
+
+ @Override
+ public void getAll(Object array, Object[] result) throws BindingException {
+ int length = Array.getLength(array);\r
+ System.arraycopy(array, 0, result, 0, length);
+ }
+
+ @Override
+ public void set(Object array, int index, Object value)
+ throws BindingException {\r
+ if (index<0 || index>Array.getLength(array))\r
+ throw new BindingException("Index out of bounds");
+ Array.set(array, index, value);
+ }
+
+ @Override
+ public int size(Object array) throws BindingException {
+ if (!isInstance(array)) {\r
+ if(array == null)\r
+ throw new BindingException("Tried to calculate the size of a null array.");\r
+ throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", "+clazz.getSimpleName()+" expected");\r
+ }
+ return Array.getLength(array);
+ }
+ @Override
+ public boolean isInstance(Object obj) {
+ return clazz.isInstance(obj);
+ }
+
+ @Override
+ public boolean isImmutable() {
+ return false;
+ }
+
+ @Override
+ public void add(Object array, int index, Object element)
+ throws BindingException, IndexOutOfBoundsException {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public void remove(Object array, int index, int count)
+ throws BindingException, IndexOutOfBoundsException {
+ throw new UnsupportedOperationException();
+ }\r
+\r
+ @Override\r
+ public void setSize(Object array, int newSize) throws BindingException {\r
+ int oldSize = Array.getLength(array);\r
+ if (oldSize==newSize) return;\r
+ throw new BindingException(clazz.getName()+" is length immutable");\r
+ } \r
+\r
+ @Override\r
+ public boolean isResizable() {\r
+ return false;\r
+ }\r
+ \r
+ @Override\r
+ protected boolean baseEquals(Object obj) {\r
+ return super.baseEquals(obj) && ((GenericArrayBinding)obj).clazz.equals(clazz);\r
+ }\r
+ \r
+ @Override\r
+ public int baseHashCode() {\r
+ return super.baseHashCode() + 13 * clazz.hashCode();\r
+ }
+}
Code Review / simantics / platform.git / blobdiff