mirror of
https://github.com/moparisthebest/JdbcMapper
synced 2024-12-21 23:08:52 -05:00
Migrate JdbcMapperProcessor away from using reflection and Class objects all together...
This commit is contained in:
parent
a1ad929cf4
commit
783b51b810
@ -1,10 +1,10 @@
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package com.moparisthebest.jdbc.codegen;
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import com.moparisthebest.jdbc.CompilingRowToObjectMapper;
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import com.moparisthebest.jdbc.ResultSetMapper;
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import javax.annotation.processing.ProcessingEnvironment;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.Modifier;
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import javax.lang.model.type.ArrayType;
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import javax.lang.model.type.DeclaredType;
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import javax.lang.model.type.TypeKind;
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@ -13,9 +13,9 @@ import javax.lang.model.util.Elements;
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import javax.lang.model.util.Types;
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import java.io.IOException;
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import java.io.Writer;
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import java.lang.reflect.Type;
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import java.util.*;
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import static com.moparisthebest.jdbc.codegen.JdbcMapperProcessor.typeMirrorStringNoGenerics;
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import static com.moparisthebest.jdbc.codegen.JdbcMapperProcessor.typeMirrorToClass;
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/**
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@ -38,6 +38,20 @@ public class CompileTimeResultSetMapper {
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listIteratorType = types.getDeclaredType(elements.getTypeElement(ListIterator.class.getCanonicalName()), types.getWildcardType(null, null));
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}
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@SuppressWarnings({"unchecked"})
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public static <T, E> String getConcreteClassCanonicalName(final TypeMirror returnType, final Class<E> defaultConcreteClass) {
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final Set<Modifier> modifiers = ((DeclaredType) returnType).asElement().getModifiers();
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if (modifiers.contains(Modifier.ABSTRACT)) { // todo: no interface?
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try {
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final Class<? extends T> concrete = (Class<? extends T>) ResultSetMapper.interfaceToConcrete.get(typeMirrorToClass(returnType));
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return (concrete == null ? (Class<? extends T>) defaultConcreteClass : concrete).getCanonicalName();
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} catch (ClassNotFoundException e) {
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// ignore?
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}
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}
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return typeMirrorStringNoGenerics(returnType);
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}
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@SuppressWarnings({"unchecked"})
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public void mapToResultType(final Writer w, final String[] keys, final ExecutableElement eeMethod, final int arrayMaxLength, final Calendar cal) throws IOException, NoSuchMethodException, ClassNotFoundException {
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//final Method m = fromExecutableElement(eeMethod);
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@ -46,176 +60,141 @@ public class CompileTimeResultSetMapper {
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//final Class returnType = typeMirrorToClass(returnTypeMirror);
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if (returnTypeMirror.getKind() == TypeKind.ARRAY) {
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final TypeMirror componentType = ((ArrayType) returnTypeMirror).getComponentType();
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toArray(w, keys, componentType, typeMirrorToClass(componentType), arrayMaxLength, cal);
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toArray(w, keys, componentType, arrayMaxLength, cal);
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} else if (types.isAssignable(returnTypeMirror, collectionType)) {
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final List<? extends TypeMirror> typeArguments = ((DeclaredType) returnTypeMirror).getTypeArguments();
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toCollection(w, keys, returnTypeMirror, (Class<? extends Collection>)typeMirrorToClass(returnTypeMirror), typeArguments.get(0), (Class) getActualTypeArguments(typeArguments)[0], arrayMaxLength, cal);
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toCollection(w, keys, returnTypeMirror, typeArguments.get(0), arrayMaxLength, cal);
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} else if (types.isAssignable(returnTypeMirror, mapType)) {
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final List<? extends TypeMirror> typeArguments = ((DeclaredType) returnTypeMirror).getTypeArguments();
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final Type[] typeArgs = getActualTypeArguments(typeArguments);
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//if (types[1] instanceof ParameterizedType) { // for collectionMaps
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if (types.isAssignable(returnTypeMirror, mapCollectionType)) { // for collectionMaps
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//final ParameterizedType pt = (ParameterizedType) types[1];
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//final Class collectionType = (Class) pt.getRawType();
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final TypeMirror collectionTypeMirror = typeArguments.get(1);
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final Class collectionType = typeMirrorToClass(collectionTypeMirror);
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if (Collection.class.isAssignableFrom(collectionType)) {
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final TypeMirror componentTypeMirror = ((DeclaredType) collectionTypeMirror).getTypeArguments().get(0);
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//final Class componentType = (Class) pt.getActualTypeArguments()[0];
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final Class componentType = typeMirrorToClass(componentTypeMirror);
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toMapCollection(w, keys,
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returnTypeMirror, (Class<? extends Map>)typeMirrorToClass(returnTypeMirror),
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typeArguments.get(0), (Class) typeArgs[0],
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collectionTypeMirror, collectionType,
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componentTypeMirror, componentType,
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arrayMaxLength, cal);
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return;
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}
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final TypeMirror componentTypeMirror = ((DeclaredType) collectionTypeMirror).getTypeArguments().get(0);
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toMapCollection(w, keys,
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returnTypeMirror,
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typeArguments.get(0),
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collectionTypeMirror,
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componentTypeMirror,
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arrayMaxLength, cal);
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return;
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}
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toMap(w, keys, returnTypeMirror, (Class<? extends Map>)typeMirrorToClass(returnTypeMirror), typeArguments.get(0), (Class) typeArgs[0], typeArguments.get(1), (Class) typeArgs[1], arrayMaxLength, cal);
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toMap(w, keys, returnTypeMirror, typeArguments.get(0), typeArguments.get(1), arrayMaxLength, cal);
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} else if (types.isAssignable(returnTypeMirror, iteratorType)) {
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final List<? extends TypeMirror> typeArguments = ((DeclaredType) returnTypeMirror).getTypeArguments();
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if (types.isAssignable(returnTypeMirror, listIteratorType))
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toListIterator(w, keys, typeArguments.get(0), (Class) getActualTypeArguments(typeArguments)[0], arrayMaxLength, cal);
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toListIterator(w, keys, typeArguments.get(0), arrayMaxLength, cal);
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else
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toIterator(w, keys, typeArguments.get(0), (Class) getActualTypeArguments(typeArguments)[0], arrayMaxLength, cal);
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toIterator(w, keys, typeArguments.get(0), arrayMaxLength, cal);
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} else {
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toObject(w, keys, returnTypeMirror, typeMirrorToClass(returnTypeMirror), cal);
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toObject(w, keys, returnTypeMirror, cal);
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}
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}
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public <K, T> CompilingRowToObjectMapper<K, T> getRowMapper(final String[] keys, Class<T> returnTypeClass, Calendar cal, Class<?> mapValType, Class<K> mapKeyType) {
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return new CompilingRowToObjectMapper<K, T>(keys, returnTypeClass, cal, mapValType, mapKeyType);
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@SuppressWarnings("unchecked")
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public CompileTimeRowToObjectMapper getRowMapper(final String[] keys, TypeMirror returnTypeClass, Calendar cal, TypeMirror mapValType, TypeMirror mapKeyType) {
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return new CompileTimeRowToObjectMapper(keys, returnTypeClass, cal, mapValType, mapKeyType);
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}
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public void writeObject(final Writer w, final String[] keys, final TypeMirror returnTypeMirror, final Class<?> returnType, final Calendar cal) throws IOException {
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getRowMapper(keys, returnType, cal, null, null).gen(w, returnTypeMirror.toString());
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public void writeObject(final Writer w, final String[] keys, final TypeMirror returnTypeMirror, final Calendar cal) throws IOException, ClassNotFoundException {
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getRowMapper(keys, returnTypeMirror, cal, null, null).gen(w, returnTypeMirror.toString());
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}
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public void toObject(final Writer w, final String[] keys, final TypeMirror returnTypeMirror, final Class<?> returnType, final Calendar cal) throws IOException {
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public void toObject(final Writer w, final String[] keys, final TypeMirror returnTypeMirror, final Calendar cal) throws IOException, ClassNotFoundException {
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w.write("\t\t\tif(rs.next()) {\n");
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writeObject(w, keys, returnTypeMirror, returnType, cal);
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writeObject(w, keys, returnTypeMirror, cal);
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w.write("\t\t\t\treturn ret;\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n");
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}
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@SuppressWarnings("unchecked")
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public <T extends Collection<E>, E> void writeCollection(final Writer w, final String[] keys, final String returnTypeString, Class<T> collectionType, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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collectionType = (Class<T>) ResultSetMapper.getConcreteClass(collectionType, ArrayList.class);
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public <T extends Collection<E>, E> void writeCollection(final Writer w, final String[] keys, final String returnTypeString, final String concreteTypeString, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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w.write("\t\t\tfinal ");
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w.write(returnTypeString);
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w.write(" _colret = new ");
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w.write(collectionType.getCanonicalName());
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w.write(concreteTypeString);
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w.write(returnTypeString.substring(returnTypeString.indexOf('<')));
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w.write("();\n\t\t\twhile(rs.next()) {\n");
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writeObject(w, keys, componentTypeMirror, componentType, cal);
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writeObject(w, keys, componentTypeMirror, cal);
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w.write("\t\t\t\t_colret.add(ret);\n\t\t\t}\n");
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}
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public <T extends Collection<E>, E> void toCollection(final Writer w, final String[] keys, final TypeMirror collectionTypeMirror, Class<T> collectionType, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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writeCollection(w, keys, collectionTypeMirror.toString(), collectionType, componentTypeMirror, componentType, arrayMaxLength, cal);
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public <T extends Collection<E>, E> void toCollection(final Writer w, final String[] keys, final TypeMirror collectionTypeMirror, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String collectionType = getConcreteClassCanonicalName(collectionTypeMirror, ArrayList.class);
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writeCollection(w, keys, collectionTypeMirror.toString(), collectionType, componentTypeMirror, arrayMaxLength, cal);
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w.write("\t\t\treturn _colret;\n");
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}
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public <E> void toArray(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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public <E> void toArray(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String returnTypeString = componentTypeMirror.toString();
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", ArrayList.class, componentTypeMirror, componentType, arrayMaxLength, cal);
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", "java.util.ArrayList", componentTypeMirror, arrayMaxLength, cal);
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w.write("\t\t\treturn _colret.toArray(new ");
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w.write(returnTypeString);
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w.write("[_colret.size()]);\n");
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}
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public <E> void toListIterator(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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public <E> void toListIterator(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String returnTypeString = componentTypeMirror.toString();
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", ArrayList.class, componentTypeMirror, componentType, arrayMaxLength, cal);
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", "java.util.ArrayList", componentTypeMirror, arrayMaxLength, cal);
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w.write("\t\t\treturn _colret.listIterator();\n");
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}
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public <E> void toIterator(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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public <E> void toIterator(final Writer w, final String[] keys, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String returnTypeString = componentTypeMirror.toString();
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", ArrayList.class, componentTypeMirror, componentType, arrayMaxLength, cal);
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writeCollection(w, keys, "java.util.List<" + returnTypeString + ">", "java.util.ArrayList", componentTypeMirror, arrayMaxLength, cal);
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w.write("\t\t\treturn _colret.iterator();\n");
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}
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@SuppressWarnings("unchecked")
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public <T extends Map<K, E>, K, E> void toMap(final Writer w, final String[] keys, final TypeMirror mapTypeMirror, Class<T> mapType, final TypeMirror mapKeyTypeMirror, Class<E> mapKeyType, final TypeMirror componentTypeMirror, Class<E> componentType, int arrayMaxLength, Calendar cal) throws IOException {
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mapType = (Class<T>) ResultSetMapper.getConcreteClass(mapType, HashMap.class);
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public <T extends Map<K, E>, K, E> void toMap(final Writer w, final String[] keys, final TypeMirror mapTypeMirror, final TypeMirror mapKeyTypeMirror, final TypeMirror componentTypeMirror, int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String mapType = getConcreteClassCanonicalName(mapTypeMirror, HashMap.class);
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final String returnTypeString = mapTypeMirror.toString();
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w.write("\t\t\tfinal ");
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w.write(returnTypeString);
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w.write(" _colret = new ");
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w.write(mapType.getCanonicalName());
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w.write(mapType);
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w.write(returnTypeString.substring(returnTypeString.indexOf('<')));
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w.write("();\n\t\t\twhile(rs.next()) {\n");
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//writeObject(w, keys, componentTypeMirror, componentType, cal);
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final CompilingRowToObjectMapper rm = getRowMapper(keys, componentType, cal, null, mapKeyType);
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final CompileTimeRowToObjectMapper rm = getRowMapper(keys, componentTypeMirror, cal, null, mapKeyTypeMirror);
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rm.gen(w, componentTypeMirror.toString());
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w.write("\t\t\t\t_colret.put(");
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rm.extractColumnValueString(w, 1, mapKeyType);
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rm.extractColumnValueString(w, 1, mapKeyTypeMirror);
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w.write(", ret);\n\t\t\t}\n");
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w.write("\t\t\treturn _colret;\n");
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}
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@SuppressWarnings("unchecked")
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public <T extends Map<K, E>, K, E extends Collection<C>, C> void toMapCollection(final Writer w, final String[] keys,
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final TypeMirror mapTypeMirror, Class<T> mapType,
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final TypeMirror mapKeyTypeMirror, Class<E> mapKeyType,
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final TypeMirror collectionTypeMirror, Class<E> collectionType,
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final TypeMirror componentTypeMirror, Class<E> componentType,
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int arrayMaxLength, Calendar cal) throws IOException {
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mapType = (Class<T>) ResultSetMapper.getConcreteClass(mapType, HashMap.class);
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collectionType = (Class<E>) ResultSetMapper.getConcreteClass(collectionType, ArrayList.class);
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final TypeMirror mapTypeMirror,
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final TypeMirror mapKeyTypeMirror,
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final TypeMirror collectionTypeMirror,
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final TypeMirror componentTypeMirror,
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int arrayMaxLength, Calendar cal) throws IOException, ClassNotFoundException {
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final String mapType = getConcreteClassCanonicalName(mapTypeMirror, HashMap.class);
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final String collectionType = getConcreteClassCanonicalName(collectionTypeMirror, ArrayList.class);
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final String returnTypeString = mapTypeMirror.toString();
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final String collectionTypeString = collectionTypeMirror.toString();
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w.write("\t\t\tfinal ");
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w.write(returnTypeString);
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w.write(" _colret = new ");
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w.write(mapType.getCanonicalName());
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w.write(mapType);
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w.write(returnTypeString.substring(returnTypeString.indexOf('<')));
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w.write("();\n\t\t\twhile(rs.next()) {\n");
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//writeObject(w, keys, componentTypeMirror, componentType, cal);
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final CompilingRowToObjectMapper rm = getRowMapper(keys, componentType, cal, null, mapKeyType);
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final CompileTimeRowToObjectMapper rm = getRowMapper(keys, componentTypeMirror, cal, null, mapKeyTypeMirror);
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rm.gen(w, componentTypeMirror.toString());
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w.write("\t\t\t\tfinal ");
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w.write(mapKeyTypeMirror.toString());
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w.write(" _colkey = ");
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rm.extractColumnValueString(w, 1, mapKeyType);
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rm.extractColumnValueString(w, 1, mapKeyTypeMirror);
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w.write(";\n\t\t\t\t");
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w.write(collectionTypeString);
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w.write(" _collist = _colret.get(_colkey);\n\t\t\t\tif(_collist == null) {\n\t\t\t\t\t_collist = new ");
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w.write(collectionType.getCanonicalName());
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w.write(collectionType);
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w.write(collectionTypeString.substring(collectionTypeString.indexOf('<')));
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w.write("();\n\t\t\t\t\t_colret.put(_colkey, _collist);\n\t\t\t\t}\n\t\t\t\t_collist.add(ret);\n\t\t\t}\n\t\t\treturn _colret;\n");
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}
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private static Type[] getActualTypeArguments(final List<? extends TypeMirror> typeArguments) throws ClassNotFoundException {
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final Type[] ret = new Type[typeArguments.size()];
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int x = -1;
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for(final TypeMirror tm : typeArguments)
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ret[++x] = typeMirrorToClass(tm);
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return ret;
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}
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/*
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private static Type[] getActualTypeArguments(Method m) {
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return ((ParameterizedType) m.getGenericReturnType()).getActualTypeArguments();
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}
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@SuppressWarnings("unchecked")
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private Method fromExecutableElement(final ExecutableElement eeMethod) throws ClassNotFoundException, NoSuchMethodException {
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final Class c = Class.forName(eeMethod.getEnclosingElement().asType().toString());
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final List<? extends VariableElement> params = eeMethod.getParameters();
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final Class<?>[] parameterTypes = new Class[params.size()];
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int count = -1;
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for (final VariableElement param : params) {
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parameterTypes[++count] = typeMirrorToClass(param.asType());
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}
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return c.getDeclaredMethod(eeMethod.getSimpleName().toString(), parameterTypes);
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}
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*/
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}
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@ -0,0 +1,400 @@
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package com.moparisthebest.jdbc.codegen;
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import com.moparisthebest.jdbc.CompilingRowToObjectMapper;
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import com.moparisthebest.jdbc.Finishable;
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import com.moparisthebest.jdbc.MapperException;
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import com.moparisthebest.jdbc.TypeMappingsFactory;
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import javax.lang.model.element.*;
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import javax.lang.model.type.ArrayType;
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import javax.lang.model.type.DeclaredType;
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import javax.lang.model.type.TypeKind;
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import javax.lang.model.type.TypeMirror;
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import java.io.IOException;
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import java.io.Writer;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.*;
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import java.util.regex.Matcher;
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import static com.moparisthebest.jdbc.CompilingRowToObjectMapper.escapeMapKeyString;
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import static com.moparisthebest.jdbc.RowToObjectMapper._setterRegex;
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import static com.moparisthebest.jdbc.codegen.JdbcMapperProcessor.typeMirrorToClass;
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/**
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* Created by mopar on 6/7/17.
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*/
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public class CompileTimeRowToObjectMapper {
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protected static final TypeMappingsFactory _tmf = TypeMappingsFactory.getInstance();
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final String[] keys;
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/**
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* Calendar instance for date/time mappings.
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*/
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protected final Calendar _cal;
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/**
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* Class to map ResultSet Rows to.
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*/
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protected final TypeMirror _returnTypeClass;
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protected final TypeMirror _mapKeyType;
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protected final int _columnCount;
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protected final boolean mapOnlySecondColumn;
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// only non-null when _returnTypeClass is an array, or a map
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protected final TypeMirror componentType;
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protected final boolean returnMap, resultSetConstructor;
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protected Element[] _fields = null;
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protected int[] _fieldTypes;
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public CompileTimeRowToObjectMapper(final String[] keys, final TypeMirror returnTypeClass, final Calendar cal, final TypeMirror mapValType, final TypeMirror mapKeyType) {
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this.keys = keys;
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_cal = cal;
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_mapKeyType = mapKeyType;
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_columnCount = keys.length - 1;
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mapOnlySecondColumn = _mapKeyType != null && _columnCount == 2;
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returnMap = false;//todo: Map.class.isAssignableFrom(returnTypeClass);
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if (returnMap) {
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// todo: need this? _returnTypeClass = ResultSetMapper.getConcreteClass(returnTypeClass, HashMap.class);
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_returnTypeClass = null;
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componentType = mapValType;
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resultSetConstructor = false;
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} else {
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_returnTypeClass = returnTypeClass;
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// detect if we want an array back
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componentType = returnTypeClass.getKind() == TypeKind.ARRAY ? ((ArrayType) returnTypeClass).getComponentType() : null;
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// detect if returnTypeClass has a constructor that takes a ResultSet, if so, our job couldn't be easier...
|
||||
boolean resultSetConstructor = false, defaultConstructor = false;
|
||||
if(_returnTypeClass.getKind() == TypeKind.DECLARED) {
|
||||
final List<? extends Element> methodsAndConstructors = ((TypeElement)((DeclaredType)_returnTypeClass).asElement()).getEnclosedElements();
|
||||
for(final Element e : methodsAndConstructors) {
|
||||
if(e.getKind() == ElementKind.CONSTRUCTOR) {
|
||||
final List<? extends VariableElement> params = ((ExecutableElement)e).getParameters();
|
||||
if(params.isEmpty())
|
||||
defaultConstructor = true;
|
||||
else if(params.size() == 1 && params.get(0).asType().toString().equals("java.sql.ResultSet")) // todo: this better
|
||||
resultSetConstructor = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
this.resultSetConstructor = resultSetConstructor;
|
||||
if(!resultSetConstructor && !defaultConstructor && _columnCount > 2 && componentType == null)
|
||||
throw new RuntimeException("Exception when trying to get constructor for : "+_returnTypeClass.toString() + " Must have default no-arg constructor or one that takes a single ResultSet.");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Build the structures necessary to do the mapping
|
||||
*
|
||||
* @throws SQLException on error.
|
||||
*/
|
||||
protected void getFieldMappings() {
|
||||
|
||||
if(_returnTypeClass.getKind() != TypeKind.DECLARED)
|
||||
throw new RuntimeException("_returnTypeClass " + _returnTypeClass + " not TypeKind.DECLARED ?? how??");
|
||||
|
||||
final DeclaredType declaredReturnType = (DeclaredType)_returnTypeClass;
|
||||
|
||||
// added this to handle stripping '_' from keys
|
||||
Map<String, String> strippedKeys = new HashMap<String, String>();
|
||||
for (final String key : keys) {
|
||||
String strippedKey = key;
|
||||
if (key != null) {
|
||||
strippedKey = key.replaceAll("_", "");
|
||||
if (key.equals(strippedKey))
|
||||
continue;
|
||||
strippedKeys.put(strippedKey, key);
|
||||
}
|
||||
}
|
||||
//System.out.println("strippedKeys: "+strippedKeys);
|
||||
//
|
||||
// find fields or setters for return class
|
||||
//
|
||||
HashMap<String, Element> mapFields = new HashMap<String, Element>(_columnCount * 2);
|
||||
for (int i = 1; i <= _columnCount; i++) {
|
||||
mapFields.put(keys[i], null);
|
||||
}
|
||||
|
||||
// public methods todo: does this do super methods too?
|
||||
for (Element e : ((TypeElement)declaredReturnType.asElement()).getEnclosedElements()) {
|
||||
if(e.getKind() != ElementKind.METHOD)
|
||||
continue;
|
||||
final ExecutableElement m = (ExecutableElement)e;
|
||||
//System.out.printf("method: '%s', isSetterMethod: '%s'\n", m, isSetterMethod(m));
|
||||
if (isSetterMethod(m)) {
|
||||
String fieldName = m.getSimpleName().toString().substring(3).toUpperCase();
|
||||
//System.out.println("METHOD-fieldName1: "+fieldName);
|
||||
if (!mapFields.containsKey(fieldName)) {
|
||||
fieldName = strippedKeys.get(fieldName);
|
||||
if (fieldName == null)
|
||||
continue;
|
||||
//System.out.println("METHOD-fieldName2: "+fieldName);
|
||||
}
|
||||
final Element field = mapFields.get(fieldName);
|
||||
// check for overloads
|
||||
if (field == null) {
|
||||
mapFields.put(fieldName, m);
|
||||
} else {
|
||||
// todo: does this work?
|
||||
// fix for 'overloaded' methods when it comes to stripped keys, we want the exact match
|
||||
final String thisName = m.getSimpleName().toString().substring(3).toUpperCase();
|
||||
final String previousName = field.getSimpleName().toString().substring(3).toUpperCase();
|
||||
//System.out.printf("thisName: '%s', previousName: '%s', mapFields.containsKey(thisName): %b, strippedKeys.containsKey(previousName): %b\n", thisName, previousName, mapFields.containsKey(thisName), strippedKeys.containsKey(previousName));
|
||||
if(mapFields.containsKey(thisName) && strippedKeys.containsKey(previousName)) {
|
||||
mapFields.put(fieldName, m);
|
||||
} else if (!mapFields.containsKey(previousName) || !strippedKeys.containsKey(thisName)) {
|
||||
throw new MapperException("Unable to choose between overloaded methods '" + m.getSimpleName().toString()
|
||||
+ "' and '" + field.getSimpleName().toString() + "' for field '" + fieldName + "' on the '" + _returnTypeClass.toString() + "' class. Mapping is done using "
|
||||
+ "a case insensitive comparison of SQL ResultSet columns to field "
|
||||
+ "names and public setter methods on the return class. Columns are also "
|
||||
+ "stripped of '_' and compared if no match is found with them.");
|
||||
}
|
||||
// then the 'overloaded' method is already correct
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// fix for 8813: include inherited and non-public fields
|
||||
for (DeclaredType clazz = declaredReturnType; clazz != null && !clazz.toString().equals("java.lang.Object");
|
||||
clazz = clazz.getEnclosingType().getKind() == TypeKind.DECLARED ? (DeclaredType)clazz.getEnclosingType() : null
|
||||
) {
|
||||
//System.out.println("fields in class: "+Arrays.toString(classFields));
|
||||
for (Element e : ((TypeElement)clazz.asElement()).getEnclosedElements()) {
|
||||
if(e.getKind() != ElementKind.FIELD)
|
||||
continue;
|
||||
final VariableElement f = (VariableElement)e;
|
||||
//System.out.println("f.fieldName: "+f.getSimpleName());
|
||||
if (f.getModifiers().contains(Modifier.STATIC)) continue;
|
||||
if (!f.getModifiers().contains(Modifier.PUBLIC)) continue;
|
||||
String fieldName = f.getSimpleName().toString().toUpperCase();
|
||||
//System.out.println("fieldName: "+fieldName);
|
||||
if (!mapFields.containsKey(fieldName)) {
|
||||
fieldName = strippedKeys.get(fieldName);
|
||||
if (fieldName == null)
|
||||
continue;
|
||||
}
|
||||
final Element field = mapFields.get(fieldName);
|
||||
if (field == null) {
|
||||
mapFields.put(fieldName, f);
|
||||
} else if(field.getKind() == ElementKind.FIELD) {
|
||||
// fix for 'overloaded' fields when it comes to stripped keys, we want the exact match
|
||||
final String thisName = f.getSimpleName().toString().toUpperCase();
|
||||
final String previousName = field.getSimpleName().toString().toUpperCase();
|
||||
//System.out.printf("thisName: '%s', previousName: '%s', mapFields.containsKey(thisName): %b, strippedKeys.containsKey(previousName): %b\n", thisName, previousName, mapFields.containsKey(thisName), strippedKeys.containsKey(previousName));
|
||||
if(mapFields.containsKey(thisName) && strippedKeys.containsKey(previousName)) {
|
||||
mapFields.put(fieldName, f);
|
||||
} else if (!mapFields.containsKey(previousName) || !strippedKeys.containsKey(thisName)) {
|
||||
throw new MapperException("Unable to choose between overloaded fields '" + f.getSimpleName().toString()
|
||||
+ "' and '" + field.getSimpleName().toString() + "' for field '" + fieldName + "' on the '" + _returnTypeClass.toString() + "' class. Mapping is done using "
|
||||
+ "a case insensitive comparison of SQL ResultSet columns to field "
|
||||
+ "names and public setter methods on the return class. Columns are also "
|
||||
+ "stripped of '_' and compared if no match is found with them.");
|
||||
}
|
||||
// then the 'overloaded' field is already correct
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// finally actually init the fields array
|
||||
_fields = new Element[_columnCount + 1];
|
||||
_fieldTypes = new int[_columnCount + 1];
|
||||
|
||||
for (int i = 1; i < _fields.length; i++) {
|
||||
Element f = mapFields.get(keys[i]);
|
||||
if (f == null) {
|
||||
throw new MapperException("Unable to map the SQL column '" + keys[i]
|
||||
+ "' to a field on the '" + _returnTypeClass.toString() +
|
||||
"' class. Mapping is done using a case insensitive comparison of SQL ResultSet "
|
||||
+ "columns to field "
|
||||
+ "names and public setter methods on the return class. Columns are also "
|
||||
+ "stripped of '_' and compared if no match is found with them.");
|
||||
}
|
||||
_fields[i] = f;
|
||||
if (f.getKind() == ElementKind.FIELD) {
|
||||
_fieldTypes[i] = getTypeId(((VariableElement) f).asType());
|
||||
} else {
|
||||
_fieldTypes[i] = getTypeId(((ExecutableElement) f).getParameters().get(0).asType());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Determine if the given method is a java bean setter method.
|
||||
* @param method Method to check
|
||||
* @return True if the method is a setter method.
|
||||
*/
|
||||
protected boolean isSetterMethod(final ExecutableElement method) {
|
||||
Matcher matcher = _setterRegex.matcher(method.getSimpleName());
|
||||
if (matcher.matches()) {
|
||||
|
||||
final Set<Modifier> modifiers = method.getModifiers();
|
||||
if (modifiers.contains(Modifier.STATIC)) return false;
|
||||
if (!modifiers.contains(Modifier.PUBLIC)) return false;
|
||||
if (TypeKind.VOID != method.getReturnType().getKind()) return false;
|
||||
|
||||
// method parameter checks
|
||||
final List<? extends VariableElement> params = method.getParameters();
|
||||
if (params.size() != 1) return false;
|
||||
if (TypeMappingsFactory.TYPE_UNKNOWN == getTypeId(params.get(0).asType())) return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public void gen(final Appendable java, final String tType) throws IOException, ClassNotFoundException {
|
||||
|
||||
if(mapOnlySecondColumn){
|
||||
java.append("final ").append(tType).append(" ret = ");
|
||||
extractColumnValueString(java, 2, _returnTypeClass);
|
||||
java.append(";\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (resultSetConstructor) {
|
||||
java.append("final ").append(tType).append(" ret = new ").append(tType).append("(rs);\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (returnMap) // we want a map
|
||||
try {
|
||||
// todo: does not call getMapImplementation, I think that's fine
|
||||
java.append("final ").append(tType).append("<String, Object> ret = new ").append(tType).append("<String, Object>();\n");
|
||||
final int columnLength = _columnCount + 1;
|
||||
int typeId = getTypeId(componentType);
|
||||
if (componentType != null && typeId != TypeMappingsFactory.TYPE_UNKNOWN) { // we want a specific value type
|
||||
for (int x = 1; x < columnLength; ++x) {
|
||||
java.append("ret.put(").append(escapeMapKeyString(keys[x]).toLowerCase()).append(", ");
|
||||
extractColumnValueString(java, x, typeId);
|
||||
java.append(");\n");
|
||||
}
|
||||
} else // we want a generic object type
|
||||
for (int x = 1; x < columnLength; ++x)
|
||||
java.append("ret.put(").append(escapeMapKeyString(keys[x].toLowerCase())).append(", rs.getObject(").append(String.valueOf(x)).append("));\n");
|
||||
return;
|
||||
} catch (Throwable e) {
|
||||
throw new MapperException(e.getClass().getName() + " when trying to create a Map<String, "
|
||||
+ (componentType == null ? "java.lang.Object" : componentType.toString()) + "> from a ResultSet row" +
|
||||
", all columns must be of the map value type", e);
|
||||
}
|
||||
else if (componentType != null) // we want an array
|
||||
try {
|
||||
java.append("final ").append(tType).append(" ret = new ").append(tType.substring(0, tType.length() - 1)).append(String.valueOf(_columnCount)).append("];\n");
|
||||
final int typeId = getTypeId(componentType);
|
||||
for (int x = 0; x < _columnCount; ) {
|
||||
java.append("ret[").append(String.valueOf(x)).append("] = ");
|
||||
extractColumnValueString(java, ++x, typeId);
|
||||
java.append(";\n");
|
||||
}
|
||||
return;
|
||||
} catch (Throwable e) {
|
||||
throw new MapperException(e.getClass().getName() + " when trying to create a "
|
||||
+ componentType + "[] from a ResultSet row, all columns must be of that type", e);
|
||||
}
|
||||
|
||||
// if the ResultSet only contains a single column we may be able to map directly
|
||||
// to the return type -- if so we don't need to build any structures to support
|
||||
// mapping
|
||||
if (_columnCount == 1) {
|
||||
|
||||
|
||||
try {
|
||||
final int typeId = getTypeId(_returnTypeClass);
|
||||
if (typeId != TypeMappingsFactory.TYPE_UNKNOWN) {
|
||||
java.append("final ").append(tType).append(" ret = ");
|
||||
extractColumnValueString(java, 1, typeId);
|
||||
java.append(";\n");
|
||||
return;
|
||||
} else {
|
||||
// we still might want a single value (i.e. java.util.Date)
|
||||
/*
|
||||
Object val = extractColumnValue(1, typeId);
|
||||
if (_returnTypeClass.isAssignableFrom(val.getClass())) {
|
||||
return _returnTypeClass.cast(val);
|
||||
}
|
||||
*/
|
||||
// we could actually pull from first row like above and test it first and fail now, but maybe just failing during compilation is enough?
|
||||
java.append("final ").append(tType).append(" ret = (").append(tType).append(") ");
|
||||
extractColumnValueString(java, 1, typeId);
|
||||
java.append(";\n");
|
||||
return;
|
||||
}
|
||||
} catch (Exception e) {
|
||||
throw new MapperException(e.getMessage(), e);
|
||||
}
|
||||
}
|
||||
|
||||
if (_fields == null)
|
||||
getFieldMappings();
|
||||
|
||||
java.append("final ").append(tType).append(" ret = new ").append(tType).append("();\n");
|
||||
|
||||
for (int i = 1; i < _fields.length; i++) {
|
||||
final Element f = _fields[i];
|
||||
final boolean isField = f.getKind() == ElementKind.FIELD;
|
||||
|
||||
//_args[0] = extractColumnValue(i, _fieldTypes[i]);
|
||||
//System.out.printf("field: '%s' obj: '%s' fieldType: '%s'\n", _fields[i], _args[0], _fieldTypes[i]);
|
||||
// custom hacked-in support for enums, can do better when we scrap org.apache.beehive.controls.system.jdbc.TypeMappingsFactory
|
||||
if (_fieldTypes[i] == 0) {
|
||||
/*
|
||||
final Class<?> fieldType = isField ? ((Field) f).getType() : ((Method) f).getParameterTypes()[0];
|
||||
if (Enum.class.isAssignableFrom(fieldType)) {
|
||||
_args[0] = Enum.valueOf((Class<? extends Enum>) fieldType, (String) _args[0]);
|
||||
if (f instanceof Field) {
|
||||
// if f not accessible (but super.getFieldMappings() sets it), throw exception during compilation is fine
|
||||
java.append("ret.").append(((Field) f).getName()).append(" = ").append(typeFromName(fieldType)).append(".valueOf(");
|
||||
extractColumnValueString(java, i, _fieldTypes[i]);
|
||||
java.append(");\n");
|
||||
} else {
|
||||
java.append("ret.").append(((Method) f).getName()).append("(").append(typeFromName(fieldType)).append(".valueOf(");
|
||||
extractColumnValueString(java, i, _fieldTypes[i]);
|
||||
java.append("));\n");
|
||||
}
|
||||
}
|
||||
*/
|
||||
// no for now...
|
||||
}
|
||||
if (isField) {
|
||||
// if f not accessible (but super.getFieldMappings() sets it), throw exception during compilation is fine
|
||||
java.append("ret.").append(f.getSimpleName().toString()).append(" = ");
|
||||
extractColumnValueString(java, i, _fieldTypes[i]);
|
||||
java.append(";\n");
|
||||
} else {
|
||||
java.append("ret.").append(f.getSimpleName().toString()).append("(");
|
||||
extractColumnValueString(java, i, _fieldTypes[i]);
|
||||
java.append(");\n");
|
||||
}
|
||||
}
|
||||
// if this resultObject is Finishable, call finish()
|
||||
//if (Finishable.class.isAssignableFrom(_returnTypeClass))
|
||||
//todo: java.append("ret.finish(rs);\n");
|
||||
}
|
||||
|
||||
public static int getTypeId(TypeMirror classType) {
|
||||
try {
|
||||
return _tmf.getTypeId(typeMirrorToClass(classType));
|
||||
} catch (ClassNotFoundException e) {
|
||||
return TypeMappingsFactory.TYPE_UNKNOWN;
|
||||
}
|
||||
}
|
||||
|
||||
public static void extractColumnValueString(final Appendable java, final int index, final int resultType) throws IOException, ClassNotFoundException {
|
||||
CompilingRowToObjectMapper.extractColumnValueString(java, index, resultType);
|
||||
}
|
||||
|
||||
public static void extractColumnValueString(final Appendable java, final int index, final TypeMirror resultType) throws IOException, ClassNotFoundException {
|
||||
CompilingRowToObjectMapper.extractColumnValueString(java, index, typeMirrorToClass(resultType));
|
||||
}
|
||||
}
|
||||
@ -555,6 +555,8 @@ public class JdbcMapperProcessor extends AbstractProcessor {
|
||||
}
|
||||
|
||||
public static Class<?> typeMirrorToClass(final TypeMirror tm) throws ClassNotFoundException {
|
||||
if(tm == null)
|
||||
return null;
|
||||
switch (tm.getKind()) {
|
||||
case BOOLEAN:
|
||||
return boolean.class;
|
||||
@ -599,8 +601,7 @@ public class JdbcMapperProcessor extends AbstractProcessor {
|
||||
}
|
||||
case DECLARED:
|
||||
if (!((DeclaredType) tm).getTypeArguments().isEmpty()) {
|
||||
final String classWithGenerics = tm.toString();
|
||||
return Class.forName(classWithGenerics.substring(0, classWithGenerics.indexOf('<')));
|
||||
return Class.forName(typeMirrorStringNoGenerics(tm));
|
||||
}
|
||||
// fallthrough otherwise...
|
||||
default:
|
||||
@ -608,6 +609,11 @@ public class JdbcMapperProcessor extends AbstractProcessor {
|
||||
}
|
||||
}
|
||||
|
||||
public static String typeMirrorStringNoGenerics(final TypeMirror tm) {
|
||||
final String classWithGenerics = tm.toString();
|
||||
return classWithGenerics.substring(0, classWithGenerics.indexOf('<'));
|
||||
}
|
||||
|
||||
public ExecutableElement getCloseMethod(final TypeElement genClass) {
|
||||
ExecutableElement ret = null;
|
||||
for (final Element methodElement : genClass.getEnclosedElements()) {
|
||||
|
||||
@ -2,6 +2,7 @@ package com.moparisthebest.jdbc;
|
||||
|
||||
import com.moparisthebest.classgen.Compiler;
|
||||
|
||||
import javax.lang.model.type.TypeMirror;
|
||||
import java.io.IOException;
|
||||
import java.lang.reflect.AccessibleObject;
|
||||
import java.lang.reflect.Field;
|
||||
@ -139,7 +140,7 @@ public class CompilingRowToObjectMapper<K, T> extends RowToObjectMapper<K, T> {
|
||||
}
|
||||
}
|
||||
|
||||
protected String escapeMapKeyString(final String s) {
|
||||
public static String escapeMapKeyString(final String s) {
|
||||
// todo: escape key string, newlines, double quotes, backslashes...
|
||||
// actually it seems like those wouldn't be valid SQL column names, so we won't bother until we hear different...
|
||||
return '"' + s + '"';
|
||||
@ -309,7 +310,7 @@ public class CompilingRowToObjectMapper<K, T> extends RowToObjectMapper<K, T> {
|
||||
}
|
||||
|
||||
|
||||
public void extractColumnValueString(final Appendable java, final int index, final Class resultType) throws IOException {
|
||||
public static void extractColumnValueString(final Appendable java, final int index, final Class resultType) throws IOException {
|
||||
extractColumnValueString(java, index, _tmf.getTypeId(resultType));
|
||||
}
|
||||
|
||||
@ -321,7 +322,7 @@ public class CompilingRowToObjectMapper<K, T> extends RowToObjectMapper<K, T> {
|
||||
* @return The extracted value
|
||||
* @throws java.sql.SQLException on error.
|
||||
*/
|
||||
public void extractColumnValueString(final Appendable java, final int index, final int resultType) throws IOException {
|
||||
public static void extractColumnValueString(final Appendable java, final int index, final int resultType) throws IOException {
|
||||
switch (resultType) {
|
||||
case TypeMappingsFactory.TYPE_INT:
|
||||
java.append("rs.getInt(").append(String.valueOf(index)).append(")");
|
||||
|
||||
@ -55,7 +55,7 @@ public class RowToObjectMapper<K, T> extends AbstractRowMapper<K, T> {
|
||||
|
||||
private static final String SETTER_NAME_REGEX = "^(set)([A-Z_]\\w*+)";
|
||||
protected static final TypeMappingsFactory _tmf = TypeMappingsFactory.getInstance();
|
||||
protected static final Pattern _setterRegex = Pattern.compile(SETTER_NAME_REGEX);
|
||||
public static final Pattern _setterRegex = Pattern.compile(SETTER_NAME_REGEX);
|
||||
|
||||
public static final int TYPE_BOOLEAN = _tmf.getTypeId(Boolean.TYPE);//TypeMappingsFactory.TYPE_BOOLEAN; // not public?
|
||||
public static final int TYPE_BOOLEAN_OBJ = _tmf.getTypeId(Boolean.class);//TypeMappingsFactory.TYPE_BOOLEAN_OBJ; // not public?
|
||||
|
||||
@ -311,6 +311,9 @@ public final class TypeMappingsFactory {
|
||||
*/
|
||||
public int getTypeId(Class classType) {
|
||||
|
||||
if(classType == null)
|
||||
return TYPE_UNKNOWN;
|
||||
|
||||
final Class origType = classType;
|
||||
while (null != classType) {
|
||||
Integer typeObj = (Integer) _typeMap.get(classType);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user