| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.validation.rebind; |
| |
| import com.google.gwt.core.client.GWT; |
| import com.google.gwt.core.client.UnsafeNativeLong; |
| import com.google.gwt.core.ext.Generator; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.TreeLogger.Type; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.core.ext.typeinfo.JField; |
| import com.google.gwt.core.ext.typeinfo.JMethod; |
| import com.google.gwt.core.ext.typeinfo.JPrimitiveType; |
| import com.google.gwt.core.ext.typeinfo.JType; |
| import com.google.gwt.core.ext.typeinfo.NotFoundException; |
| import com.google.gwt.core.ext.typeinfo.TypeOracle; |
| import com.google.gwt.dev.jjs.ast.JProgram; |
| import com.google.gwt.thirdparty.guava.common.base.Predicate; |
| import com.google.gwt.thirdparty.guava.common.collect.Iterables; |
| import com.google.gwt.thirdparty.guava.common.collect.Maps; |
| import com.google.gwt.thirdparty.guava.common.collect.Sets; |
| import com.google.gwt.thirdparty.guava.common.primitives.Primitives; |
| import com.google.gwt.user.rebind.ClassSourceFileComposerFactory; |
| import com.google.gwt.user.rebind.SourceWriter; |
| import com.google.gwt.validation.client.impl.AbstractGwtSpecificValidator; |
| import com.google.gwt.validation.client.impl.ConstraintDescriptorImpl; |
| import com.google.gwt.validation.client.impl.GwtBeanDescriptor; |
| import com.google.gwt.validation.client.impl.GwtBeanDescriptorImpl; |
| import com.google.gwt.validation.client.impl.GwtValidationContext; |
| import com.google.gwt.validation.client.impl.PropertyDescriptorImpl; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import javax.validation.ConstraintValidator; |
| import javax.validation.ConstraintViolation; |
| import javax.validation.Payload; |
| import javax.validation.metadata.BeanDescriptor; |
| import javax.validation.metadata.ConstraintDescriptor; |
| import javax.validation.metadata.PropertyDescriptor; |
| |
| /** |
| * Creates a {@link com.google.gwt.validation.client.GwtSpecificValidator}. |
| * <p> |
| * This class is not thread safe. |
| */ |
| public class GwtSpecificValidatorCreator extends AbstractCreator { |
| |
| private static enum Stage { |
| OBJECT, PROPERTY, VALUE |
| } |
| |
| private static final JType[] NO_ARGS = new JType[]{}; |
| |
| /** |
| * Returns the literal value of an object that is suitable for inclusion in |
| * Java Source code. |
| * |
| * <p> |
| * Supports all types that {@link Annotation) value can have. |
| * |
| * |
| * @throws IllegalArgumentException if the type of the object does not have a java literal form. |
| */ |
| public static String asLiteral(Object value) throws IllegalArgumentException { |
| Class<?> clazz = value.getClass(); |
| JProgram jProgram = new JProgram(); |
| |
| if (clazz.isArray()) { |
| StringBuilder sb = new StringBuilder(); |
| Object[] array = (Object[]) value; |
| |
| sb.append("new " + clazz.getComponentType().getCanonicalName() + "[] "); |
| sb.append("{"); |
| boolean first = true; |
| for (Object object : array) { |
| if (first) { |
| first = false; |
| } else { |
| sb.append(","); |
| } |
| sb.append(asLiteral(object)); |
| } |
| sb.append("}"); |
| return sb.toString(); |
| } |
| |
| if (value instanceof Class) { |
| return ((Class<?>) ((Class<?>) value)).getCanonicalName() + ".class"; |
| } |
| if (value instanceof Double) { |
| return jProgram.getLiteralDouble(((Double) value).doubleValue()).toSource(); |
| } |
| if (value instanceof Integer) { |
| return jProgram.getLiteralInt(((Integer) value).intValue()).toSource(); |
| } |
| if (value instanceof Long) { |
| return jProgram.getLiteralLong(((Long) value).intValue()).toSource(); |
| } |
| if (value instanceof String) { |
| return '"' + Generator.escape((String) value) + '"'; |
| } |
| // TODO(nchalko) handle the rest of the literal types |
| throw new IllegalArgumentException(value.getClass() |
| + " is can not be represented as a Java Literal."); |
| } |
| |
| static <T extends Annotation> Class<?> getTypeOfConstraintValidator( |
| Class<? extends ConstraintValidator<T, ?>> constraintClass) { |
| |
| for (Method method : constraintClass.getMethods()) { |
| if (method.getName().equals("isValid") |
| && method.getParameterTypes().length == 2 |
| && method.getReturnType().isAssignableFrom(Boolean.TYPE)) { |
| return method.getParameterTypes()[0]; |
| } |
| } |
| throw new IllegalStateException( |
| "ConstraintValidators must have a isValid method"); |
| } |
| |
| // Visible for testing |
| static <A extends Annotation> Class<? extends ConstraintValidator<A, ?>> getValidatorForType( |
| Class<?> type, |
| List<Class<? extends ConstraintValidator<A, ?>>> constraintValidatorClasses) { |
| Map<Class<?>, Class<? extends ConstraintValidator<A, ?>>> map = Maps.newHashMap(); |
| for (Class<? extends ConstraintValidator<A, ?>> constraintClass : constraintValidatorClasses) { |
| Class<?> aType = getTypeOfConstraintValidator(constraintClass); |
| if (aType.isAssignableFrom(type)) { |
| map.put(aType, constraintClass); |
| } |
| } |
| Class<?> best = null; |
| for (Class<?> c : map.keySet()) { |
| if (best == null) { |
| best = c; |
| } else { |
| if (c.equals(type)) { |
| best = c; |
| break; // Exact match we can stop |
| } |
| // TODO(nchalko) implement per spec |
| // is the new one better than the last. |
| } |
| } |
| return map.get(best); |
| } |
| |
| private static <A extends Annotation> Class<? extends ConstraintValidator<A, ?>> getValidatorForType( |
| ConstraintDescriptor<A> constraint, Class<?> clazz) { |
| List<Class<? extends ConstraintValidator<A, ?>>> constraintValidatorClasses |
| = constraint.getConstraintValidatorClasses(); |
| if (constraintValidatorClasses.isEmpty()) { |
| return null; |
| } |
| return getValidatorForType(clazz, constraintValidatorClasses); |
| } |
| |
| private BeanHelper beanHelper; |
| private Set<BeanHelper> beansToValidate = Sets.newHashSet(); |
| private final JClassType beanType; |
| |
| private final Set<JField> fieldsToWrap = Sets.newHashSet(); |
| |
| private Set<JMethod> gettersToWrap = Sets.newHashSet(); |
| |
| |
| |
| private final TypeOracle oracle; |
| |
| public GwtSpecificValidatorCreator(JClassType validatorType, |
| JClassType beanType, BeanHelper beanHelper, TreeLogger logger, |
| GeneratorContext context) { |
| super(context, logger, validatorType); |
| this.oracle = context.getTypeOracle(); |
| this.beanType = beanType; |
| this.beanHelper = beanHelper; |
| } |
| |
| @Override |
| protected void compose(ClassSourceFileComposerFactory composerFactory) { |
| addImports(composerFactory, GWT.class, GwtBeanDescriptor.class, |
| GwtValidationContext.class, Set.class, HashSet.class, |
| ConstraintViolation.class, Annotation.class); |
| composerFactory.setSuperclass(AbstractGwtSpecificValidator.class.getCanonicalName() |
| + "<" + beanType.getQualifiedSourceName() + ">"); |
| composerFactory.addImplementedInterface(validatorType.getName()); |
| } |
| |
| @Override |
| protected void writeClassBody(SourceWriter sw) |
| throws UnableToCompleteException { |
| writeFields(sw); |
| sw.println(); |
| writeValidate(sw); |
| sw.println(); |
| writeValidateProperty(sw); |
| sw.println(); |
| writeValidateValue(sw); |
| sw.println(); |
| writeGetDescriptor(sw); |
| sw.println(); |
| writePropertyValidators(sw); |
| sw.println(); |
| |
| // Write these after we know what is needed |
| writeWrappers(sw); |
| sw.println(); |
| |
| // Write the Validator instance variables after we have collected the |
| // ones we need in beansToValidate |
| writeValidatorInstances(sw); |
| } |
| |
| protected void writeUnsafeNativeLongIfNeeded(SourceWriter sw, JType jType) { |
| if (JPrimitiveType.LONG.equals(jType)) { |
| // @com.google.gwt.core.client.UnsafeNativeLong |
| sw.print("@"); |
| sw.println(UnsafeNativeLong.class.getCanonicalName()); |
| } |
| } |
| |
| private <T> T[] asArray(Collection<?> collection, T[] array) { |
| if (collection == null) { |
| return null; |
| } |
| return collection.toArray(array); |
| } |
| |
| private String asGetter(PropertyDescriptor p) { |
| return "get" + capitalizeFirstLetter(p.getPropertyName()); |
| } |
| |
| private String capitalizeFirstLetter(String propertyName) { |
| if (propertyName == null) { |
| return null; |
| } |
| if (propertyName.length() == 0) { |
| return ""; |
| } |
| String cap = propertyName.substring(0, 1).toUpperCase(); |
| if (propertyName.length() > 1) { |
| cap += propertyName.substring(1); |
| } |
| return cap; |
| } |
| |
| private String constraintDescriptorVar(String name, int count) { |
| String s = name + "_c" + count; |
| return s; |
| } |
| |
| private Annotation getAnnotation(PropertyDescriptor p, boolean useField, |
| ConstraintDescriptor<?> constraint) { |
| Class<? extends Annotation> expectedAnnotaionClass = |
| ((Annotation) constraint.getAnnotation()).annotationType(); |
| Annotation annotation = null; |
| if (useField) { |
| JField field = beanType.findField(p.getPropertyName()); |
| if (field.getEnclosingType().equals(beanType)) { |
| annotation = field.getAnnotation(expectedAnnotaionClass); |
| } |
| } else { |
| JMethod method = beanType.findMethod(asGetter(p), NO_ARGS); |
| if (method.getEnclosingType().equals(beanType)) { |
| annotation = method.getAnnotation(expectedAnnotaionClass); |
| } |
| } |
| return annotation; |
| } |
| |
| private boolean hasField(PropertyDescriptor p) { |
| JField field = beanType.findField(p.getPropertyName()); |
| return field != null; |
| } |
| |
| /** |
| * @param beanHelper2 |
| * @param p |
| * @return |
| */ |
| private boolean hasGetter(PropertyDescriptor p) { |
| JType[] paramTypes = new JType[]{}; |
| try { |
| beanType.getMethod(asGetter(p), paramTypes); |
| return true; |
| } catch (NotFoundException e) { |
| return false; |
| } |
| } |
| |
| private boolean isIterable(Class<?> elementClass) { |
| // TODO(nchalko) handle iterables everywhere this is called. |
| return elementClass.isArray() |
| || Iterable.class.isAssignableFrom(elementClass); |
| } |
| |
| private boolean isPropertyConstrained(BeanHelper helper, PropertyDescriptor p) { |
| Set<PropertyDescriptor> propertyDescriptors = |
| helper.getBeanDescriptor().getConstrainedProperties(); |
| Predicate<PropertyDescriptor> nameMatches = newPropertyNameMatches(p); |
| return Iterables.any(propertyDescriptors, nameMatches); |
| } |
| |
| private Predicate<PropertyDescriptor> newPropertyNameMatches( |
| final PropertyDescriptor p) { |
| return new Predicate<PropertyDescriptor>() { |
| public boolean apply(PropertyDescriptor input) { |
| return input.getPropertyName().equals(p.getPropertyName()); |
| } |
| }; |
| } |
| |
| private String toWrapperName(JField field) { |
| return "_" + field.getName(); |
| } |
| |
| /** |
| * @param method |
| * @return |
| */ |
| private String toWrapperName(JMethod method) { |
| return "_" + method.getName(); |
| } |
| |
| private String validateMethodFieldName(PropertyDescriptor p) { |
| return "validateProperty_" + p.getPropertyName(); |
| } |
| |
| private String validateMethodGetterName(PropertyDescriptor p) { |
| return "validateProperty_get" + p.getPropertyName(); |
| } |
| |
| private void writeBeanDescriptor(SourceWriter sw) { |
| BeanDescriptor beanDescriptor = beanHelper.getBeanDescriptor(); |
| |
| // GwtBeanDescriptor <MyBean> beanDescriptor = |
| sw.print(GwtBeanDescriptor.class.getCanonicalName()); |
| sw.print("<" + beanHelper.getTypeCanonicalName() + ">"); |
| sw.println(" beanDescriptor = "); |
| sw.indent(); |
| sw.indent(); |
| |
| // GwtBeanDescriptorImpl.builder(Order.class) |
| sw.print(GwtBeanDescriptorImpl.class.getCanonicalName()); |
| sw.println(".builder(" + beanHelper.getTypeCanonicalName() + ".class)"); |
| sw.indent(); |
| sw.indent(); |
| |
| // .setConstrained(true) |
| sw.println(".setConstrained(" + beanDescriptor.isBeanConstrained() + ")"); |
| |
| // .put("myProperty", myProperty_pd) |
| for (PropertyDescriptor p : beanDescriptor.getConstrainedProperties()) { |
| sw.print(".put(\""); |
| sw.print(p.getPropertyName()); |
| sw.print("\", "); |
| sw.print(p.getPropertyName()); |
| sw.println("_pd)"); |
| } |
| |
| // .build(); |
| sw.println(".build();"); |
| sw.outdent(); |
| sw.outdent(); |
| sw.outdent(); |
| sw.outdent(); |
| } |
| |
| private void writeConstraintDescriptor(SourceWriter sw, |
| ConstraintDescriptor<? extends Annotation> constraint, |
| String constraintDescripotorVar) throws UnableToCompleteException { |
| Class<? extends Annotation> annotationType = |
| constraint.getAnnotation().annotationType(); |
| |
| // First list all composing constraints |
| int count = 0; |
| for (ConstraintDescriptor<?> composingConstraint : |
| constraint.getComposingConstraints()) { |
| writeConstraintDescriptor(sw, composingConstraint, |
| constraintDescripotorVar + "_" + count++); |
| } |
| |
| // ConstraintDescriptorImpl<MyAnnotation> constraintDescriptor = ; |
| sw.print(ConstraintDescriptorImpl.class.getCanonicalName()); |
| sw.print("<"); |
| |
| sw.print(annotationType.getCanonicalName()); |
| sw.print(">"); |
| |
| sw.println(" " + constraintDescripotorVar + " = "); |
| sw.indent(); |
| sw.indent(); |
| |
| // ConstraintDescriptorImpl.<MyConstraint> builder() |
| sw.print(ConstraintDescriptorImpl.class.getCanonicalName()); |
| sw.print(".<"); |
| |
| sw.print(annotationType.getCanonicalName()); |
| sw.println("> builder()"); |
| sw.indent(); |
| sw.indent(); |
| |
| // .setAnnotation(new MyAnnotation ) |
| sw.println(".setAnnotation( "); |
| sw.indent(); |
| sw.indent(); |
| writeNewAnnotation(sw, constraint); |
| sw.println(")"); |
| sw.outdent(); |
| sw.outdent(); |
| |
| // .setAttributes(builder() |
| sw.println(".setAttributes(attributeBuilder()"); |
| sw.indent(); |
| |
| for (Map.Entry<String, Object> entry : |
| constraint.getAttributes().entrySet()) { |
| // .put(key, value) |
| sw.print(".put("); |
| sw.print(asLiteral(entry.getKey())); |
| sw.print(", "); |
| sw.print(asLiteral(entry.getValue())); |
| sw.println(")"); |
| } |
| |
| // .build()) |
| sw.println(".build())"); |
| sw.outdent(); |
| |
| // .setConstraintValidatorClasses(classes ) |
| sw.print(".setConstraintValidatorClasses("); |
| sw.print(asLiteral(asArray(constraint.getConstraintValidatorClasses(), |
| new Class[0]))); |
| sw.println(")"); |
| |
| // .getGroups(groups) |
| sw.print(".setGroups("); |
| Set<Class<?>> groups = constraint.getGroups(); |
| sw.print(asLiteral(asArray(groups, new Class<?>[0]))); |
| sw.println(")"); |
| |
| // .setPayload(payload) |
| sw.print(".setPayload("); |
| Set<Class<? extends Payload>> payload = constraint.getPayload(); |
| sw.print(asLiteral(asArray(payload, new Class[0]))); |
| sw.println(")"); |
| |
| // .setsetReportAsSingleViolation(boolean ) |
| sw.print(".setReportAsSingleViolation("); |
| sw.print(Boolean.valueOf(constraint.isReportAsSingleViolation()) |
| .toString()); |
| sw.println(")"); |
| |
| // .build(); |
| sw.println(".build();"); |
| sw.outdent(); |
| sw.outdent(); |
| |
| sw.outdent(); |
| sw.outdent(); |
| sw.println(); |
| } |
| |
| private void writeFields(SourceWriter sw) throws UnableToCompleteException { |
| |
| // Create a variable for each constraint of each property |
| for (PropertyDescriptor p : |
| beanHelper.getBeanDescriptor().getConstrainedProperties()) { |
| int count = 0; |
| for (ConstraintDescriptor<?> constraint : p.getConstraintDescriptors()) { |
| writeConstraintDescriptor(sw, constraint, |
| constraintDescriptorVar(p.getPropertyName(), count)); |
| count++; // index starts at zero. |
| } |
| writePropertyDescriptor(sw, p); |
| if (p.isCascaded() && !isIterable(p.getElementClass())) { |
| beansToValidate.add(createBeanHelper(p.getElementClass())); |
| } |
| } |
| |
| // Now write the BeanDescriptor after we already have the PropertyDescriptor |
| writeBeanDescriptor(sw); |
| sw.println(); |
| |
| // Create a variable for each constraint of this class. |
| int count = 0; |
| for (ConstraintDescriptor<?> constraint : |
| beanHelper.getBeanDescriptor().getConstraintDescriptors()) { |
| |
| writeConstraintDescriptor(sw, constraint, |
| constraintDescriptorVar("this", count)); |
| count++; // index starts at zero. |
| } |
| } |
| |
| private void writeFieldWrapperMethod(SourceWriter sw, JField field) { |
| writeUnsafeNativeLongIfNeeded(sw, field.getType()); |
| |
| // private native fieldType _fieldName(Bean object) /*-{ |
| sw.print("private native "); |
| |
| sw.print(field.getType().getQualifiedSourceName()); |
| sw.print(" "); |
| sw.print(toWrapperName(field)); |
| sw.print("("); |
| sw.print(beanType.getName()); |
| sw.println(" object) /*-{"); |
| sw.indent(); |
| |
| // return object.@com.examples.Bean::myMethod(); |
| sw.print("return object.@"); |
| sw.print(field.getEnclosingType().getQualifiedSourceName()); |
| sw.print("::" + field.getName()); |
| sw.println(";"); |
| |
| // }-*/; |
| sw.outdent(); |
| sw.println("}-*/;"); |
| } |
| |
| private void writeGetDescriptor(SourceWriter sw) { |
| // public GwtBeanDescriptor<beanType> getConstraints() { |
| sw.print("public "); |
| sw.print("GwtBeanDescriptor<" + beanHelper.getTypeCanonicalName() + "> "); |
| sw.println("getConstraints() {"); |
| sw.indent(); |
| |
| // return beanDescriptor; |
| sw.println("return beanDescriptor;"); |
| |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeGetterWrapperMethod(SourceWriter sw, JMethod method) { |
| writeUnsafeNativeLongIfNeeded(sw, method.getReturnType()); |
| |
| // private native fieldType _getter(Bean object) /*={ |
| sw.print("private native "); |
| sw.print(method.getReturnType().getQualifiedSourceName()); |
| sw.print(" "); |
| sw.print(toWrapperName(method)); |
| sw.print("("); |
| sw.print(beanType.getName()); |
| sw.println(" object) /*-{"); |
| sw.indent(); |
| |
| // return object.@com.examples.Bean::myMethod()(); |
| sw.print("return object."); |
| sw.print(method.getJsniSignature()); |
| sw.println("();"); |
| |
| // }-*/; |
| sw.outdent(); |
| sw.println("}-*/;"); |
| } |
| |
| private void writeNewAnnotation(SourceWriter sw, |
| ConstraintDescriptor<? extends Annotation> constraint) |
| throws UnableToCompleteException { |
| Annotation annotation = constraint.getAnnotation(); |
| Class<? extends Annotation> annotationType = annotation.annotationType(); |
| |
| // new MyAnnotation () { |
| sw.print("new "); |
| sw.print(annotationType.getCanonicalName()); |
| sw.println("(){"); |
| sw.indent(); |
| sw.indent(); |
| |
| // public Class<? extends Annotation> annotationType() { return |
| // MyAnnotation.class; } |
| sw.print("public Class<? extends Annotation> annotationType() { return "); |
| sw.print(annotationType.getCanonicalName()); |
| sw.println(".class; }"); |
| |
| for (Method method : annotationType.getMethods()) { |
| // method.isAbstract would be better |
| if (method.getDeclaringClass().equals(annotation.annotationType())) { |
| // public returnType method() { return value ;} |
| sw.print("public "); |
| sw.print(method.getReturnType().getCanonicalName()); // TODO handle |
| // generics |
| sw.print(" "); |
| sw.print(method.getName()); |
| sw.print("() { return "); |
| |
| try { |
| Object value = method.invoke(annotation); |
| sw.print(asLiteral(value)); |
| } catch (IllegalArgumentException e) { |
| throw error(logger, e); |
| } catch (IllegalAccessException e) { |
| throw error(logger, e); |
| } catch (InvocationTargetException e) { |
| throw error(logger, e); |
| } |
| sw.println(";}"); |
| } |
| } |
| |
| sw.outdent(); |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeNewViolations(SourceWriter sw) { |
| // Set<ConstraintViolation<T>> violations = |
| // new HashSet<ConstraintViolation<T>>(); |
| sw.println("Set<ConstraintViolation<T>> violations = "); |
| sw.indent(); |
| sw.indent(); |
| |
| sw.println("new HashSet<ConstraintViolation<T>>();"); |
| sw.outdent(); |
| sw.outdent(); |
| } |
| |
| /** |
| * @param sw |
| * @param p |
| */ |
| private void writePropertyDescriptor(SourceWriter sw, PropertyDescriptor p) { |
| // PropertyDescriptor myProperty_pd = |
| sw.print(PropertyDescriptor.class.getCanonicalName()); |
| sw.print(" "); |
| sw.print(p.getPropertyName()); |
| sw.println("_pd ="); |
| sw.indent(); |
| sw.indent(); |
| |
| // new PropertyDescriptorImpl( |
| sw.println("new " + PropertyDescriptorImpl.class.getCanonicalName() + "("); |
| sw.indent(); |
| sw.indent(); |
| |
| // "myProperty", |
| sw.println("\"" + p.getPropertyName() + "\","); |
| |
| // MyType.class, |
| sw.println(p.getElementClass().getCanonicalName() + ".class,"); |
| |
| // isCascaded, |
| sw.print(Boolean.toString(p.isCascaded())); |
| |
| // myProperty_c0, |
| // myProperty_c1 ); |
| int size = p.getConstraintDescriptors().size(); |
| for (int i = 0; i < size; i++) { |
| sw.println(","); // Print the , for the previous line |
| sw.print(constraintDescriptorVar(p.getPropertyName(), i)); |
| } |
| sw.println(");"); |
| |
| sw.outdent(); |
| sw.outdent(); |
| sw.outdent(); |
| sw.outdent(); |
| } |
| |
| private void writePropertyValidators(SourceWriter sw) { |
| for (PropertyDescriptor p : |
| beanHelper.getBeanDescriptor().getConstrainedProperties()) { |
| if (hasField(p)) { |
| writeValidatePropertyMethod(sw, p, true); |
| sw.println(); |
| } |
| if (hasGetter(p)) { |
| writeValidatePropertyMethod(sw, p, false); |
| sw.println(); |
| } |
| } |
| } |
| |
| private void writeValidate(SourceWriter sw) { |
| // public <T> Set<ConstraintViolation<T>> validate( |
| sw.println("public <T> Set<ConstraintViolation<T>> validate("); |
| |
| // GwtValidationContext<T> context, BeanType object, Class<?>... groups) { |
| sw.indent(); |
| sw.indent(); |
| sw.println("GwtValidationContext<T> context,"); |
| sw.println(beanHelper.getTypeCanonicalName() + " object,"); |
| sw.println("Class<?>... groups) {"); |
| sw.outdent(); |
| |
| writeNewViolations(sw); |
| |
| if (beanHelper.getBeanDescriptor().isBeanConstrained()) { |
| |
| // /// For each group |
| |
| // TODO(nchalko) handle the sequence in the AbstractValidator |
| |
| // See JSR 303 section 3.5 |
| // all reachable fields |
| // all reachable getters (both) at once |
| |
| Set<PropertyDescriptor> properties = beanHelper.getBeanDescriptor().getConstrainedProperties(); |
| |
| for (PropertyDescriptor p : properties) { |
| writeValidatePropertyCall(sw, p, false); |
| } |
| |
| // all class level constraints |
| // including super classes |
| // including super interfaces |
| |
| int count = 0; |
| Class<?> clazz = beanHelper.getClazz(); |
| for (ConstraintDescriptor<?> constraint : beanHelper.getBeanDescriptor().findConstraints().getConstraintDescriptors()) { |
| |
| Class<? extends ConstraintValidator<? extends Annotation, ?>> validatorClass = getValidatorForType( |
| constraint, clazz); |
| if (validatorClass != null) { |
| // TODO(nchalko) handle constraint.isReportAsSingleViolation() and |
| // hasComposingConstraints |
| |
| // validate(context, violations, object, value, validator, |
| // constraintDescriptor, groups); |
| sw.print("validate(context, violations, null, object, "); |
| // new MyValidtor(); |
| sw.print("new "); |
| sw.print(validatorClass.getCanonicalName()); |
| sw.print("(), "); // new one each time because validators are not thread |
| // safe |
| sw.print(constraintDescriptorVar("this", count)); |
| sw.println(", groups);"); |
| } else { |
| // TODO(nchalko) What does the spec say to do here. |
| logger.log(Type.WARN, "No ConstraintValidator of " + constraint |
| + " for type " + clazz); |
| } |
| count++; // index starts at 0 |
| } |
| |
| // validate all super classes and interfaces |
| writeValidateInheritance(sw, clazz, Stage.OBJECT, null); |
| |
| // all reachable and cascadable associations |
| |
| beanType.getFields(); |
| } |
| // return violations; |
| sw.println("return violations;"); |
| |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeValidateConstraint(SourceWriter sw, PropertyDescriptor p, |
| Class<?> elementClass, ConstraintDescriptor<?> constraint, |
| String constraintDescriptorVar) { |
| Class<? extends ConstraintValidator<? extends Annotation, ?>> validatorClass = |
| getValidatorForType(constraint, elementClass); |
| if (validatorClass == null) { |
| // TODO(nchalko) What does the spec say to do here. |
| logger.log(Type.WARN, "No ConstraintValidator of " + constraint + " for " |
| + p.getPropertyName() + " of type " + elementClass); |
| |
| } else { |
| // TODO(nchalko) handle constraint.isReportAsSingleViolation() |
| // validate(context, violations, object, value, new MyValidator(), |
| // constraintDescriptor, groups); |
| sw.print("validate(context, violations, object, value, "); |
| sw.print("new "); // new one each time because validators are not |
| // thread safe |
| // TODO(nchalko) use ConstraintValidatorFactory |
| sw.print(validatorClass.getCanonicalName()); |
| sw.print("(), "); |
| sw.print(constraintDescriptorVar); |
| sw.println(", groups);"); |
| } |
| int count = 0; |
| for (ConstraintDescriptor<?> compositeConstraint : constraint.getComposingConstraints()) { |
| String compositeVar = constraintDescriptorVar + "_" + count++; |
| writeValidateConstraint(sw, p, elementClass, compositeConstraint, |
| compositeVar); |
| } |
| } |
| |
| private void writeValidateFieldCall(SourceWriter sw, PropertyDescriptor p, |
| boolean useValue) { |
| String propertyName = p.getPropertyName(); |
| |
| // validateProperty_<<field>>(context, |
| sw.print(validateMethodFieldName(p)); |
| sw.print("(context, "); |
| sw.print("violations, "); |
| |
| // null, (MyType) value, |
| // or |
| // object, object.getLastName(), |
| if (useValue) { |
| sw.print("null, "); |
| sw.print("("); |
| sw.print(Primitives.wrap(p.getElementClass()).getCanonicalName()); |
| sw.print(") value"); |
| } else { |
| sw.print("object, "); |
| JField field = beanType.getField(propertyName); |
| if (field.isPublic()) { |
| sw.print("object."); |
| sw.print(propertyName); |
| } else { |
| fieldsToWrap.add(field); |
| sw.print(toWrapperName(field) + "(object)"); |
| } |
| } |
| sw.print(", "); |
| |
| // groups)); |
| sw.println("groups);"); |
| } |
| |
| private void writeValidateGetterCall(SourceWriter sw, PropertyDescriptor p, |
| boolean useValue) { |
| // validateProperty_get<<field>>(context, violations, |
| sw.print(validateMethodGetterName(p)); |
| sw.print("(context, "); |
| sw.print("violations, "); |
| |
| // object, object.getMyProp(), |
| // or |
| // null, (MyType) value, |
| if (useValue) { |
| sw.print("null, "); |
| sw.print("("); |
| sw.print(Primitives.wrap(p.getElementClass()).getCanonicalName()); |
| sw.print(") value"); |
| } else { |
| sw.print("object, "); |
| JMethod method = beanType.findMethod(asGetter(p), NO_ARGS); |
| if (method.isPublic()) { |
| sw.print("object."); |
| sw.print(asGetter(p)); |
| sw.print("()"); |
| } else { |
| gettersToWrap.add(method); |
| sw.print(toWrapperName(method) + "(object)"); |
| } |
| } |
| sw.print(", "); |
| |
| // groups); |
| sw.println("groups);"); |
| } |
| |
| private void writeValidateInheritance(SourceWriter sw, Class<?> clazz, |
| Stage stage, PropertyDescriptor property) { |
| writeValidateInterfaces(sw, clazz, stage, property); |
| Class<?> superClass = clazz.getSuperclass(); |
| if (superClass != null) { |
| writeValidatorCall(sw, superClass, stage, property); |
| } |
| } |
| |
| private void writeValidateInterfaces(SourceWriter sw, Class<?> clazz, |
| Stage stage, PropertyDescriptor p) { |
| for (Class<?> type : clazz.getInterfaces()) { |
| writeValidatorCall(sw, type, stage, p); |
| writeValidateInterfaces(sw, type, stage, p); |
| } |
| } |
| |
| private void writeValidateProperty(SourceWriter sw) { |
| // public <T> Set<ConstraintViolation<T>> validate( |
| sw.println("public <T> Set<ConstraintViolation<T>> validateProperty("); |
| |
| // GwtValidationContext<T> context, BeanType object, String propertyName, |
| // Class<?>... groups) { |
| sw.indent(); |
| sw.indent(); |
| sw.println("GwtValidationContext<T> context,"); |
| sw.println(beanHelper.getTypeCanonicalName() + " object,"); |
| sw.println("String propertyName,"); |
| sw.println("Class<?>... groups) {"); |
| sw.outdent(); |
| |
| writeNewViolations(sw); |
| |
| // TODO(nchalko) check if it is a valid propertyName |
| |
| for (PropertyDescriptor property : beanHelper.getBeanDescriptor().getConstrainedProperties()) { |
| // if (propertyName.equals(myPropety)) { |
| sw.print("if (propertyName.equals(\""); |
| sw.print(property.getPropertyName()); |
| sw.println("\")) {"); |
| sw.indent(); |
| |
| writeValidatePropertyCall(sw, property, false); |
| |
| // validate all super classes and interfaces |
| writeValidateInheritance(sw, beanHelper.getClazz(), Stage.PROPERTY, |
| property); |
| |
| // } |
| sw.outdent(); |
| sw.print("} else "); |
| } |
| |
| // { |
| sw.println("{"); |
| sw.indent(); |
| |
| // throw new IllegalArgumentException(propertyName |
| // +"is not a valid property of myClass"); |
| sw.print("throw new "); |
| sw.print(IllegalArgumentException.class.getCanonicalName()); |
| sw.print("( propertyName +\" is not a valid property of "); |
| sw.print(beanType.getQualifiedSourceName()); |
| sw.println("\");"); |
| |
| // } |
| sw.outdent(); |
| sw.println("}"); |
| |
| if (!beanHelper.getBeanDescriptor().getConstrainedProperties().isEmpty()) { |
| |
| // return violations; |
| sw.println("return violations;"); |
| } |
| |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeValidatePropertyCall(SourceWriter sw, |
| PropertyDescriptor property, boolean useValue) { |
| if (hasGetter(property)) { |
| // validate_getMyProperty |
| writeValidateGetterCall(sw, property, useValue); |
| } |
| if (hasField(property)) { |
| // validate_myProperty |
| writeValidateFieldCall(sw, property, useValue); |
| } |
| } |
| |
| private void writeValidatePropertyMethod(SourceWriter sw, |
| PropertyDescriptor p, boolean useField) { |
| Class<?> elementClass = p.getElementClass(); |
| |
| // private final <T> void validateProperty_{get}<p>( |
| sw.print("private final <T> void "); |
| if (useField) { |
| sw.print(validateMethodFieldName(p)); |
| } else { |
| sw.print(validateMethodGetterName(p)); |
| } |
| sw.println("("); |
| // GwtValidationContext<T> context, Set<ConstraintViolation<T>> violations, |
| // BeanType object, <Type> value, Class<?>... groups) { |
| sw.indent(); |
| sw.indent(); |
| sw.println("GwtValidationContext<T> context,"); |
| sw.println("Set<ConstraintViolation<T>> violations,"); |
| sw.println(beanHelper.getTypeCanonicalName() + " object,"); |
| sw.print(elementClass.getCanonicalName()); |
| sw.println(" value,"); |
| sw.println("Class<?>... groups) {"); |
| sw.outdent(); |
| |
| // TODO(nchalko) handle the other path types. |
| // context = context.append("myProperty"); |
| sw.print("context = context.append(\""); |
| sw.print(p.getPropertyName()); |
| sw.println("\");"); |
| |
| // TODO(nchalko) move this out of here to the Validate method |
| if (p.isCascaded() && !isIterable(elementClass)) { |
| |
| BeanHelper helper = createBeanHelper(elementClass); |
| |
| // if(value != null) { |
| sw.println("if(value != null) {"); |
| sw.indent(); |
| |
| // violations.addAll(myGwtValidator.validate(context, value, groups)); |
| sw.print("violations.addAll("); |
| sw.print(helper.getValidatorInstanceName()); |
| sw.println(".validate(context, value, groups));"); |
| |
| // } |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| int count = 0; |
| for (ConstraintDescriptor<?> constraint : p.getConstraintDescriptors()) { |
| Annotation annotation = getAnnotation(p, useField, constraint); |
| if (annotation != null) { |
| // TODO(nchalko) check for annotation equality |
| |
| String constraintDescriptorVar = constraintDescriptorVar( |
| p.getPropertyName(), count); |
| |
| writeValidateConstraint(sw, p, elementClass, constraint, |
| constraintDescriptorVar); |
| } |
| count++; // index starts at zero |
| } |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeValidateValue(SourceWriter sw) { |
| // public <T> Set<ConstraintViolation<T>> validate( |
| sw.println("public <T> Set<ConstraintViolation<T>> validateValue("); |
| |
| // GwtValidationContext<T> context, Class<Author> beanType, |
| // String propertyName, Object value, Class<?>... groups) { |
| sw.indent(); |
| sw.indent(); |
| sw.println("GwtValidationContext<T> context,"); |
| sw.println("Class<" + beanHelper.getTypeCanonicalName() + "> beanType,"); |
| sw.println("String propertyName,"); |
| sw.println("Object value,"); |
| sw.println("Class<?>... groups) {"); |
| sw.outdent(); |
| |
| writeNewViolations(sw); |
| |
| // TODO(nchalko) check if it is a valid propertyName |
| |
| for (PropertyDescriptor property : |
| beanHelper.getBeanDescriptor().getConstrainedProperties()) { |
| // if (propertyName.equals(myPropety)) { |
| sw.print("if (propertyName.equals(\""); |
| sw.print(property.getPropertyName()); |
| sw.println("\")) {"); |
| sw.indent(); |
| |
| writeValidatePropertyCall(sw, property, true); |
| |
| // validate all super classes and interfaces |
| writeValidateInheritance(sw, beanHelper.getClazz(), |
| Stage.VALUE, property); |
| |
| // } |
| sw.outdent(); |
| sw.print("} else "); |
| } |
| |
| // { |
| sw.println("{"); |
| sw.indent(); |
| |
| // throw new IllegalArgumentException(propertyName |
| // +"is not a valid property of myClass"); |
| sw.print("throw new "); |
| sw.print(IllegalArgumentException.class.getCanonicalName()); |
| sw.print("( propertyName +\" is not a valid property of "); |
| sw.print(beanType.getQualifiedSourceName()); |
| sw.println("\");"); |
| |
| // } |
| sw.outdent(); |
| sw.println("}"); |
| |
| if (!beanHelper.getBeanDescriptor() |
| .getConstrainedProperties().isEmpty()) { |
| // return violations; |
| sw.println("return violations;"); |
| } |
| |
| sw.outdent(); |
| sw.println("}"); |
| } |
| |
| private void writeValidatorCall(SourceWriter sw, Class<?> type, Stage stage, |
| PropertyDescriptor p) { |
| if (BeanHelper.isClassConstrained(type) && !isIterable(type)) { |
| BeanHelper helper = createBeanHelper(type); |
| beansToValidate.add(helper); |
| switch (stage) { |
| case OBJECT: |
| // voilations.addAll(myValidator.validate(context,object,groups)); |
| sw.print("violations.addAll("); |
| sw.print(helper.getValidatorInstanceName()); |
| sw.println(".validate(context, object, groups));"); |
| break; |
| case PROPERTY: |
| if (isPropertyConstrained(helper, p)) { |
| // voilations.addAll(myValidator.validateProperty(context,object |
| // ,propertyName, groups)); |
| sw.print("violations.addAll("); |
| sw.print(helper.getValidatorInstanceName()); |
| sw.print(".validateProperty(context, object,"); |
| sw.println(" propertyName, groups));"); |
| } |
| break; |
| case VALUE: |
| if (isPropertyConstrained(helper, p)) { |
| // voilations.addAll(myValidator.validateProperty(context,beanType |
| // ,propertyName, value, groups)); |
| sw.print("violations.addAll("); |
| sw.print(helper.getValidatorInstanceName()); |
| sw.print(".validateValue(context, "); |
| // TODO(nchalko) this seems like an unneeded param |
| sw.print(helper.getTypeCanonicalName()); |
| sw.println(".class, propertyName, value, groups));"); |
| } |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| } |
| } |
| |
| private void writeValidatorInstances(SourceWriter sw) { |
| sw.println("// The validator instance variables are written last "); |
| sw.println("// after we have identified all the ones we need."); |
| for (BeanHelper helper : beansToValidate) { |
| writeValidatorInstance(sw, helper); |
| } |
| } |
| |
| private void writeWrappers(SourceWriter sw) { |
| sw.println("// Write the wrappers after we know which are needed"); |
| for (JField field : fieldsToWrap) { |
| writeFieldWrapperMethod(sw, field); |
| sw.println(); |
| } |
| |
| for (JMethod method : gettersToWrap) { |
| writeGetterWrapperMethod(sw, method); |
| sw.println(); |
| } |
| } |
| } |
