All Downloads are FREE. Search and download functionalities are using the official Maven repository.

com.google.gwt.validation.rebind.GwtSpecificValidatorCreator Maven / Gradle / Ivy

There is a newer version: 2.10.0
Show newest version
/*
 * 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.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.dev.jjs.ast.JBooleanLiteral;
import com.google.gwt.dev.jjs.ast.JCharLiteral;
import com.google.gwt.dev.jjs.ast.JDoubleLiteral;
import com.google.gwt.dev.jjs.ast.JFloatLiteral;
import com.google.gwt.dev.jjs.ast.JIntLiteral;
import com.google.gwt.dev.jjs.ast.JLongLiteral;
import com.google.gwt.thirdparty.guava.common.base.Function;
import com.google.gwt.thirdparty.guava.common.base.Functions;
import com.google.gwt.thirdparty.guava.common.base.Joiner;
import com.google.gwt.thirdparty.guava.common.base.Predicate;
import com.google.gwt.thirdparty.guava.common.collect.ImmutableList;
import com.google.gwt.thirdparty.guava.common.collect.ImmutableSet;
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.Ordering;
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.ConstraintOrigin;
import com.google.gwt.validation.client.impl.Group;
import com.google.gwt.validation.client.impl.GroupChain;
import com.google.gwt.validation.client.impl.GroupChainGenerator;
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.PathImpl;
import com.google.gwt.validation.client.impl.PropertyDescriptorImpl;
import com.google.gwt.validation.client.impl.metadata.BeanMetadata;
import com.google.gwt.validation.client.impl.metadata.ValidationGroupsMetadata;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.lang.annotation.Annotation;
import java.lang.annotation.ElementType;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintViolation;
import javax.validation.GroupSequence;
import javax.validation.Path.Node;
import javax.validation.Payload;
import javax.validation.UnexpectedTypeException;
import javax.validation.Valid;
import javax.validation.ValidationException;
import javax.validation.groups.Default;
import javax.validation.metadata.BeanDescriptor;
import javax.validation.metadata.ConstraintDescriptor;
import javax.validation.metadata.PropertyDescriptor;

/**
 * Creates a {@link com.google.gwt.validation.client.impl.GwtSpecificValidator}.
 * 

* This class is not thread safe. */ public final class GwtSpecificValidatorCreator extends AbstractCreator { private static enum Stage { OBJECT, PROPERTY, VALUE } static final JType[] NO_ARGS = new JType[]{}; private static final String DEFAULT_VIOLATION_VAR = "violations"; private static final Annotation[] NO_ANNOTATIONS = new Annotation[]{}; private static Function PROPERTY_DESCRIPTOR_TO_NAME = new Function() { @Override public String apply(java.beans.PropertyDescriptor pd) { return pd.getName(); } }; private static Function TO_LITERAL = new Function() { @Override public String apply(Object input) { return asLiteral(input); } }; public static String asGetter(PropertyDescriptor p) { return "get" + capitalizeFirstLetter(p.getPropertyName()); } /** * Returns the literal value of an object that is suitable for inclusion in * Java Source code. * *

* 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(); 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 Boolean) { return JBooleanLiteral.get(((Boolean) value).booleanValue()) .toSource(); } else if (value instanceof Byte) { return JIntLiteral.get(((Byte) value).byteValue()).toSource(); } else if (value instanceof Character) { return JCharLiteral.get(((Character) value).charValue()) .toSource(); } else if (value instanceof Class) { return ((Class) ((Class) value)).getCanonicalName() + ".class"; } else if (value instanceof Double) { return JDoubleLiteral.get(((Double) value).doubleValue()) .toSource(); } else if (value instanceof Enum) { return value.getClass().getCanonicalName() + "." + ((Enum) value).name(); } else if (value instanceof Float) { return JFloatLiteral.get(((Float) value).floatValue()).toSource(); } else if (value instanceof Integer) { return JIntLiteral.get(((Integer) value).intValue()).toSource(); } else if (value instanceof Long) { return JLongLiteral.get(((Long) value).longValue()).toSource(); } else if (value instanceof String) { return '"' + Generator.escape((String) value) + '"'; } else { // TODO(nchalko) handle Annotation types throw new IllegalArgumentException(value.getClass() + " can not be represented as a Java Literal."); } } public static String capitalizeFirstLetter(String propertyName) { if (propertyName == null) { return null; } if (propertyName.length() == 0) { return ""; } String cap = propertyName.substring(0, 1).toUpperCase(Locale.ROOT); if (propertyName.length() > 1) { cap += propertyName.substring(1); } return cap; } public static boolean isIterableOrMap(Class elementClass) { // TODO(nchalko) handle iterables everywhere this is called. return elementClass.isArray() || Iterable.class.isAssignableFrom(elementClass) || Map.class.isAssignableFrom(elementClass); } /** * Finds the type that a constraint validator will check. * *

This type comes from the first parameter of the isValid() method on * the constraint validator. However, this is a bit tricky because ConstraintValidator * has a parameterized type. When using Java reflection, we will see multiple isValid() * methods, including one that checks java.lang.Object.

* *

Strategy: for now, assume there are at most two isValid() methods. If there are two, * assume one of them has a type that is assignable from the other. (Most likely, * one of them will be java.lang.Object.)

* * @throws IllegalStateException if there isn't any isValid() method or there are more than two. */ static Class getTypeOfConstraintValidator( Class> constraintClass) { int candidateCount = 0; Class result = null; for (Method method : constraintClass.getMethods()) { if (method.getName().equals("isValid") && method.getParameterTypes().length == 2 && method.getReturnType().isAssignableFrom(Boolean.TYPE)) { Class firstArgType = method.getParameterTypes()[0]; if (result == null || result.isAssignableFrom(firstArgType)) { result = firstArgType; } candidateCount++; } } if (candidateCount == 0) { throw new IllegalStateException("ConstraintValidators must have a isValid method"); } else if (candidateCount > 2) { throw new IllegalStateException( "ConstraintValidators must have no more than two isValid methods"); } return result; } // Visible for testing static ImmutableSet>> getValidatorForType( Class type, List>> constraintValidatorClasses) { type = Primitives.wrap(type); Map, Class>> map = Maps.newHashMap(); for (Class> constraintClass : constraintValidatorClasses) { Class aType = Primitives.wrap(getTypeOfConstraintValidator(constraintClass)); if (aType.isAssignableFrom(type)) { map.put(aType, constraintClass); } } // TODO(nchalko) implement per spec // Handle Arrays and Generics final Set> best = Util.findBestMatches(type, map.keySet()); Predicate> inBest = new Predicate>() { @Override public boolean apply(Class key) { return best.contains(key); } }; return ImmutableSet.copyOf(Maps.filterKeys(map, inBest).values()); } private static ConstraintOrigin convertConstraintOriginEnum( org.hibernate.validator.metadata.ConstraintOrigin definedOn) { switch (definedOn) { case DEFINED_IN_HIERARCHY: return ConstraintOrigin.DEFINED_IN_HIERARCHY; case DEFINED_LOCALLY: return ConstraintOrigin.DEFINED_LOCALLY; default: throw new IllegalArgumentException("Unable to convert: unknown ConstraintOrigin value"); } } /** * Gets the best {@link ConstraintValidator}. * *

* The ConstraintValidator chosen to validate a declared type * {@code targetType} is the one where the type supported by the * ConstraintValidator is a supertype of {@code targetType} and where there is * no other ConstraintValidator whose supported type is a supertype of * {@code type} and not a supertype of the chosen ConstraintValidator * supported type. * * @param constraint the constraint to find ConstraintValidators for. * @param targetType The type to find a ConstraintValidator for. * @return ConstraintValidator * * @throws UnexpectedTypeException if there is not exactly one maximally * specific constraint validator for targetType. */ private static Class> getValidatorForType( ConstraintDescriptor constraint, Class targetType) throws UnexpectedTypeException { List>> constraintValidatorClasses = constraint.getConstraintValidatorClasses(); if (constraintValidatorClasses.isEmpty()) { throw new UnexpectedTypeException("No ConstraintValidator found for " + constraint.getAnnotation()); } ImmutableSet>> best = getValidatorForType( targetType, constraintValidatorClasses); if (best.isEmpty()) { throw new UnexpectedTypeException("No " + constraint.getAnnotation() + " ConstraintValidator for type " + targetType); } if (best.size() > 1) { throw new UnexpectedTypeException("More than one maximally specific " + constraint.getAnnotation() + " ConstraintValidator for type " + targetType + ", found " + Ordering.usingToString().sortedCopy(best)); } return Iterables.get(best, 0); } private final BeanHelper beanHelper; private final Set beansToValidate = Sets.newHashSet(); private final JClassType beanType; private final Set fieldsToWrap = Sets.newHashSet(); private Set gettersToWrap = Sets.newHashSet(); private final Set> validGroups; private final Map, Boolean> validConstraintsMap = Maps.newHashMap(); public GwtSpecificValidatorCreator(JClassType validatorType, JClassType beanType, BeanHelper beanHelper, TreeLogger logger, GeneratorContext context, BeanHelperCache cache, Class[] validGroupsFromAnnotation) { super(context, logger, validatorType, cache); this.beanType = beanType; this.beanHelper = beanHelper; Set> tempValidGroups = Sets.newHashSet(validGroupsFromAnnotation); tempValidGroups.add(Default.class); this.validGroups = Collections.unmodifiableSet(tempValidGroups); } @Override protected void compose(ClassSourceFileComposerFactory composerFactory) { addImports(composerFactory, Annotation.class, ConstraintViolation.class, GWT.class, ValidationGroupsMetadata.class, Group.class, GroupChain.class, PathImpl.class, Node.class, GroupChainGenerator.class, GwtBeanDescriptor.class, BeanMetadata.class, GwtValidationContext.class, ArrayList.class, HashSet.class, IllegalArgumentException.class, Set.class, Collection.class, Iterator.class, List.class, ValidationException.class); composerFactory.setSuperclass(AbstractGwtSpecificValidator.class.getCanonicalName() + "<" + beanType.getQualifiedSourceName() + ">"); composerFactory.addImplementedInterface(validatorType.getName()); } @Override protected void writeClassBody(SourceWriter sw) throws UnableToCompleteException { writeFields(sw); sw.println(); writeValidateClassGroups(sw); sw.println(); writeExpandDefaultAndValidateClassGroups(sw); sw.println(); writeExpandDefaultAndValidatePropertyGroups(sw); sw.println(); writeExpandDefaultAndValidateValueGroups(sw); sw.println(); writeValidatePropertyGroups(sw); sw.println(); writeValidateValueGroups(sw); sw.println(); writeGetBeanMetadata(sw); sw.println(); writeGetDescriptor(sw); sw.println(); writePropertyValidators(sw); sw.println(); writeValidateAllNonInheritedProperties(sw); sw.println(); // Write the wrappers after we know which are needed writeWrappers(sw); sw.println(); } 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 boolean areConstraintDescriptorGroupsValid(ConstraintDescriptor constraintDescriptor) { if (validConstraintsMap.containsKey(constraintDescriptor)) { return validConstraintsMap.get(constraintDescriptor); } else { boolean areValid = checkGroups(constraintDescriptor.getGroups()); // cache result validConstraintsMap.put(constraintDescriptor, areValid); return areValid; } } private T[] asArray(Collection collection, T[] array) { if (collection == null) { return null; } return collection.toArray(array); } private boolean checkGroups(Set> groups) { for (Class group : groups) { if (validGroups.contains(group)) { return true; } } return false; } private String constraintDescriptorVar(String name, int count) { String s = name + "_c" + count; return s; } private Annotation getAnnotation(PropertyDescriptor p, boolean useField, Class expectedAnnotationClass) { Annotation annotation = null; if (useField) { JField field = beanType.findField(p.getPropertyName()); if (field.getEnclosingType().equals(beanType)) { annotation = field.getAnnotation(expectedAnnotationClass); } } else { JMethod method = beanType.findMethod(asGetter(p), NO_ARGS); if (method.getEnclosingType().equals(beanType)) { annotation = method.getAnnotation(expectedAnnotationClass); } } return annotation; } private Annotation[] getAnnotations(PropertyDescriptor p, boolean useField) { Class clazz = beanHelper.getClazz(); if (useField) { try { Field field = clazz.getDeclaredField(p.getPropertyName()); return field.getAnnotations(); } catch (NoSuchFieldException ignore) { // Expected Case } } else { try { Method method = clazz.getMethod(asGetter(p)); return method.getAnnotations(); } catch (NoSuchMethodException ignore) { // Expected Case } } return NO_ANNOTATIONS; } private String getQualifiedSourceNonPrimitiveType(JType elementType) { JPrimitiveType primitive = elementType.isPrimitive(); return primitive == null ? elementType.getQualifiedSourceName() : primitive.getQualifiedBoxedSourceName(); } private boolean hasMatchingAnnotation(Annotation expectedAnnotation, Annotation[] annotations) throws UnableToCompleteException { // See spec section 2.2. Applying multiple constraints of the same type for (Annotation annotation : annotations) { // annotations not annotated by @Constraint if (annotation.annotationType().getAnnotation(Constraint.class) == null) { try { // value element has a return type of an array of constraint // annotations Method valueMethod = annotation.annotationType().getMethod("value"); Class valueType = valueMethod.getReturnType(); if (valueType.isArray() && Annotation.class.isAssignableFrom(valueType.getComponentType())) { if (Modifier.isAbstract(valueMethod.getModifiers())) { // handle edge case where interface is marked "abstract" valueMethod.setAccessible(true); } Annotation[] valueAnnotions = (Annotation[]) valueMethod.invoke(annotation); for (Annotation annotation2 : valueAnnotions) { if (expectedAnnotation.equals(annotation2)) { return true; } } } } catch (NoSuchMethodException ignore) { // Expected Case. } catch (Exception e) { throw error(logger, e); } } } return false; } private boolean hasMatchingAnnotation(ConstraintDescriptor constraint) throws UnableToCompleteException { Annotation expectedAnnotation = constraint.getAnnotation(); Class expectedAnnotationClass = expectedAnnotation.annotationType(); if (expectedAnnotation.equals(beanHelper.getClazz().getAnnotation( expectedAnnotationClass))) { return true; } // See spec section 2.2. Applying multiple constraints of the same type Annotation[] annotations = beanHelper.getClazz().getAnnotations(); return hasMatchingAnnotation(expectedAnnotation, annotations); } private boolean hasMatchingAnnotation(PropertyDescriptor p, boolean useField, ConstraintDescriptor constraint) throws UnableToCompleteException { Annotation expectedAnnotation = constraint.getAnnotation(); Class expectedAnnotationClass = expectedAnnotation.annotationType(); if (expectedAnnotation.equals(getAnnotation(p, useField, expectedAnnotationClass))) { return true; } return hasMatchingAnnotation(expectedAnnotation, getAnnotations(p, useField)); } private boolean hasValid(PropertyDescriptor p, boolean useField) { return getAnnotation(p, useField, Valid.class) != null; } private boolean isPropertyConstrained(BeanHelper helper, PropertyDescriptor p) { Set propertyDescriptors = helper.getBeanDescriptor().getConstrainedProperties(); Predicate nameMatches = newPropertyNameMatches(p); return Iterables.any(propertyDescriptors, nameMatches); } private boolean isPropertyConstrained(PropertyDescriptor p, boolean useField) { // cascaded counts as constrained // we must know if the @Valid annotation is on a field or a getter JClassType jClass = beanHelper.getJClass(); if (useField && jClass.findField(p.getPropertyName()).isAnnotationPresent(Valid.class)) { return true; } else if (!useField && jClass.findMethod(asGetter(p),NO_ARGS).isAnnotationPresent(Valid.class)) { return true; } // for non-cascaded properties for (ConstraintDescriptor constraint : p.getConstraintDescriptors()) { org.hibernate.validator.metadata.ConstraintDescriptorImpl constraintHibernate = (org.hibernate.validator.metadata.ConstraintDescriptorImpl) constraint; if (constraintHibernate.getElementType() == (useField ? ElementType.FIELD : ElementType.METHOD)) { return true; } } return false; } private Predicate newPropertyNameMatches( final PropertyDescriptor p) { return new Predicate() { @Override public boolean apply(PropertyDescriptor input) { return input.getPropertyName().equals(p.getPropertyName()); } }; } private String toWrapperName(JField field) { return "_" + field.getName(); } 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(); // private final GwtBeanDescriptor beanDescriptor = sw.print("private final "); 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() + ")"); int count = 0; for (ConstraintDescriptor constraint : beanDescriptor.getConstraintDescriptors()) { if (areConstraintDescriptorGroupsValid(constraint)) { // .add(c0) sw.println(".add(" + constraintDescriptorVar("this", count) + ")"); count++; } } // .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)"); } // .setBeanMetadata(beanMetadata) sw.println(".setBeanMetadata(beanMetadata)"); // .build(); sw.println(".build();"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); } private void writeBeanMetadata(SourceWriter sw) throws UnableToCompleteException { // private final BeanMetadata beanMetadata = sw.println("private final BeanMetadata beanMetadata ="); sw.indent(); sw.indent(); // new BeanMetadata( sw.println("new " + BeanMetadata.class.getSimpleName() + "("); sw.indent(); sw.indent(); // <>, <>, <>, ... Class beanClazz = beanHelper.getClazz(); sw.print(asLiteral(beanClazz)); GroupSequence groupSeqAnnotation = beanClazz.getAnnotation(GroupSequence.class); List> groupSequence = new ArrayList>(); if (groupSeqAnnotation == null) { groupSequence.add(beanClazz); } else { groupSequence.addAll(Arrays.asList(groupSeqAnnotation.value())); } boolean groupSequenceContainsDefault = false; for (Class group : groupSequence) { sw.println(","); if (group.getName().equals(beanClazz.getName())) { sw.print(asLiteral(Default.class)); groupSequenceContainsDefault = true; } else if (group.getName().equals(Default.class.getName())) { throw error(logger, "'Default.class' cannot appear in default group sequence list."); } else { sw.print(asLiteral(group)); } } if (!groupSequenceContainsDefault) { throw error(logger, beanClazz.getName() + " must be part of the redefined default group " + "sequence."); } sw.println(");"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); } private void writeClassLevelConstraintsValidation(SourceWriter sw, String groupsVarName) throws UnableToCompleteException { // all class level constraints int count = 0; Class clazz = beanHelper.getClazz(); for (ConstraintDescriptor constraint : beanHelper.getBeanDescriptor().getConstraintDescriptors()) { if (areConstraintDescriptorGroupsValid(constraint)) { if (hasMatchingAnnotation(constraint)) { if (!constraint.getConstraintValidatorClasses().isEmpty()) { Class> validatorClass = getValidatorForType(constraint, clazz); // validate(context, violations, null, object, sw.print("validate(context, violations, null, object, "); // new MyValidtor(), sw.print("new "); sw.print(validatorClass.getCanonicalName()); sw.print("(), "); // TODO(nchalko) use ConstraintValidatorFactory // this.aConstraintDescriptor, groups); sw.print(constraintDescriptorVar("this", count)); sw.print(", "); sw.print(groupsVarName); sw.println(");"); } else if (constraint.getComposingConstraints().isEmpty()) { // TODO(nchalko) What does the spec say to do here. logger.log(TreeLogger.WARN, "No ConstraintValidator of " + constraint + " for type " + clazz); } // TODO(nchalko) handle constraint.isReportAsSingleViolation() and // hasComposingConstraints } count++; } } } private void writeConstraintDescriptor(SourceWriter sw, ConstraintDescriptor constraint, ElementType elementType, ConstraintOrigin origin, String constraintDescripotorVar) throws UnableToCompleteException { Class annotationType = constraint.getAnnotation().annotationType(); // First list all composing constraints int count = 0; for (ConstraintDescriptor composingConstraint : constraint.getComposingConstraints()) { writeConstraintDescriptor(sw, composingConstraint, elementType, origin, constraintDescripotorVar + "_" + count++); } // private final ConstraintDescriptorImpl constraintDescriptor = ; sw.print("private final "); sw.print(ConstraintDescriptorImpl.class.getCanonicalName()); sw.print("<"); sw.print(annotationType.getCanonicalName()); sw.print(">"); sw.println(" " + constraintDescripotorVar + " = "); sw.indent(); sw.indent(); // ConstraintDescriptorImpl. 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 entry : constraint.getAttributes().entrySet()) { // .put(key, value) sw.print(".put("); String key = entry.getKey(); sw.print(asLiteral(key)); sw.print(", "); Object value = entry.getValue(); // Add the Default group if it is not already present if ("groups".equals(key) && value instanceof Class[] && ((Class[])value).length == 0) { value = new Class[] { Default.class }; } sw.print(asLiteral(value)); sw.println(")"); } // .build()) sw.println(".build())"); sw.outdent(); // .setConstraintValidatorClasses(classes ) sw.print(".setConstraintValidatorClasses("); sw.print(asLiteral(asArray(constraint.getConstraintValidatorClasses(), new Class[0]))); sw.println(")"); int ccCount = constraint.getComposingConstraints().size(); for (int i = 0; i < ccCount; i++) { // .addComposingConstraint(cX_X) sw.print(".addComposingConstraint("); sw.print(constraintDescripotorVar + "_" + i); sw.println(")"); } // .getGroups(groups) sw.print(".setGroups("); Set> groups = constraint.getGroups(); sw.print(asLiteral(asArray(groups, new Class[0]))); sw.println(")"); // .setPayload(payload) sw.print(".setPayload("); Set> payload = constraint.getPayload(); sw.print(asLiteral(asArray(payload, new Class[0]))); sw.println(")"); // .setReportAsSingleViolation(boolean ) sw.print(".setReportAsSingleViolation("); sw.print(Boolean.valueOf(constraint.isReportAsSingleViolation()) .toString()); sw.println(")"); // .setElementType(elementType) sw.print(".setElementType("); sw.print(asLiteral(elementType)); sw.println(")"); // .setDefinedOn(origin) sw.print(".setDefinedOn("); sw.print(asLiteral(origin)); sw.println(")"); // .build(); sw.println(".build();"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); sw.println(); } private void writeExpandDefaultAndValidate(SourceWriter sw, Stage stage) throws UnableToCompleteException { Class clazz = beanHelper.getClazz(); // ArrayList> justGroups = new ArrayList>(); sw.println("ArrayList> justGroups = new ArrayList>();"); // for (Group g : groups) { sw.println("for (Group g : groups) {"); sw.indent(); // if (!g.isDefaultGroup() || !getBeanMetadata().defaultGroupSequenceIsRedefined()) { sw.println("if (!g.isDefaultGroup() || !getBeanMetadata().defaultGroupSequenceIsRedefined()) {"); sw.indent(); // justGroups.add(g.getGroup()); sw.println("justGroups.add(g.getGroup());"); sw.outdent(); // } sw.println("}"); sw.outdent(); // } sw.println("}"); // Class[] justGroupsArray = justGroups.toArray(new Class[justGroups.size()]); sw.println("Class[] justGroupsArray = justGroups.toArray(new Class[justGroups.size()]);"); switch (stage) { case OBJECT: // validateAllNonInheritedProperties(context, object, violations, justGroupsArray); sw.println("validateAllNonInheritedProperties(context, object, violations, " + "justGroupsArray);"); writeClassLevelConstraintsValidation(sw, "justGroupsArray"); break; case PROPERTY: // validatePropertyGroups(context, object, propertyName, violations, justGroupsArray); sw.println("validatePropertyGroups(context, object, propertyName, violations, " + "justGroupsArray);"); break; case VALUE: // validateValueGroups(context, beanType, propertyName, value, violations, // justGroupsArray); sw.println("validateValueGroups(context, beanType, propertyName, value, violations, " + "justGroupsArray);"); break; default: throw new IllegalStateException(); } // if (getBeanMetadata().defaultGroupSequenceIsRedefined()) { sw.println("if (getBeanMetadata().defaultGroupSequenceIsRedefined()) {"); sw.indent(); // for (Class g : beanMetadata.getDefaultGroupSequence()) { sw.println("for (Class g : beanMetadata.getDefaultGroupSequence()) {"); sw.indent(); // int numberOfViolations = violations.size(); sw.println("int numberOfViolations = violations.size();"); switch (stage) { case OBJECT: // validateAllNonInheritedProperties(context, object, violations, g); sw.println("validateAllNonInheritedProperties(context, object, violations, g);"); writeClassLevelConstraintsValidation(sw, "g"); // validate super classes and super interfaces writeValidateInheritance(sw, clazz, Stage.OBJECT, null, false, "g"); break; case PROPERTY: // validatePropertyGroups(context, object, propertyName, violations, g); sw.println("validatePropertyGroups(context, object, propertyName, violations, g);"); break; case VALUE: // validateValueGroups(context, beanType, propertyName, value, violations, g); sw.println("validateValueGroups(context, beanType, propertyName, value, violations, g);"); break; default: throw new IllegalStateException(); } // if (violations.size() > numberOfViolations) { sw.println("if (violations.size() > numberOfViolations) {"); sw.indent(); // break; sw.println("break;"); sw.outdent(); // } sw.println("}"); sw.outdent(); // } sw.println("}"); sw.outdent(); // } sw.println("}"); if (stage == Stage.OBJECT) { // else { sw.println("else {"); sw.indent(); // validate super classes and super interfaces writeValidateInheritance(sw, clazz, Stage.OBJECT, null, true, "groups"); // } sw.outdent(); sw.println("}"); } } private void writeExpandDefaultAndValidateClassGroups(SourceWriter sw) throws UnableToCompleteException { // public void expandDefaultAndValidateClassGroups( sw.println("public void expandDefaultAndValidateClassGroups("); // GwtValidationContext context, BeanType object, // Set> violations, Group... groups) { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println(beanHelper.getTypeCanonicalName() + " object,"); sw.println("Set> violations,"); sw.println("Group... groups) {"); sw.outdent(); writeExpandDefaultAndValidate(sw, Stage.OBJECT); // } sw.outdent(); sw.println("}"); } private void writeExpandDefaultAndValidatePropertyGroups(SourceWriter sw) throws UnableToCompleteException { // public void expandDefaultAndValidatePropertyGroups( sw.println("public void expandDefaultAndValidatePropertyGroups("); // GwtValidationContext context, BeanType object, String propertyName, // Set> violations, Group... groups) { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println(beanHelper.getTypeCanonicalName() + " object,"); sw.println("String propertyName,"); sw.println("Set> violations,"); sw.println("Group... groups) {"); sw.outdent(); writeExpandDefaultAndValidate(sw, Stage.PROPERTY); // } sw.outdent(); sw.println("}"); } private void writeExpandDefaultAndValidateValueGroups(SourceWriter sw) throws UnableToCompleteException { // public void expandDefaultAndValidateValueGroups( sw.println("public void expandDefaultAndValidateValueGroups("); // GwtValidationContext context, Class beanType, String propertyName, // Object value, Set> violations, Group... groups) { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println("Class<" + beanHelper.getTypeCanonicalName() + "> beanType,"); sw.println("String propertyName,"); sw.println("Object value,"); sw.println("Set> violations,"); sw.println("Group... groups) {"); sw.outdent(); writeExpandDefaultAndValidate(sw, Stage.VALUE); // } sw.outdent(); sw.println("}"); } private void writeFields(SourceWriter sw) throws UnableToCompleteException { // Create a static array of all valid property names. BeanInfo beanInfo; try { beanInfo = Introspector.getBeanInfo(beanHelper.getClazz()); } catch (IntrospectionException e) { throw error(logger, e); } // private static final java.util.List ALL_PROPERTY_NAMES = sw.println("private static final java.util.List ALL_PROPERTY_NAMES = "); sw.indent(); sw.indent(); // Collections.unmodifiableList( sw.println("java.util.Collections.unmodifiableList("); sw.indent(); sw.indent(); // java.util.Arrays.asList( sw.print("java.util.Arrays.asList("); // "foo","bar" ); sw.print(Joiner.on(",").join( Iterables.transform( ImmutableList.copyOf(beanInfo.getPropertyDescriptors()), Functions.compose(TO_LITERAL, PROPERTY_DESCRIPTOR_TO_NAME)))); sw.println("));"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); // Write the metadata for the bean writeBeanMetadata(sw); sw.println(); // Create a variable for each constraint of each property for (PropertyDescriptor p : beanHelper.getBeanDescriptor().getConstrainedProperties()) { int count = 0; for (ConstraintDescriptor constraint : p.getConstraintDescriptors()) { org.hibernate.validator.metadata.ConstraintDescriptorImpl constraintHibernate = (org.hibernate.validator.metadata.ConstraintDescriptorImpl) constraint; if (areConstraintDescriptorGroupsValid(constraint)) { writeConstraintDescriptor(sw, constraint, constraintHibernate.getElementType(), convertConstraintOriginEnum(constraintHibernate.getDefinedOn()), constraintDescriptorVar(p.getPropertyName(), count++)); } } writePropertyDescriptor(sw, p); if (p.isCascaded()) { beansToValidate.add(isIterableOrMap(p.getElementClass()) ? createBeanHelper(beanHelper.getAssociationType(p, true)) : createBeanHelper(p.getElementClass())); } } // Create a variable for each constraint of this class. int count = 0; for (ConstraintDescriptor constraint : beanHelper.getBeanDescriptor().getConstraintDescriptors()) { org.hibernate.validator.metadata.ConstraintDescriptorImpl constraintHibernate = (org.hibernate.validator.metadata.ConstraintDescriptorImpl) constraint; if (areConstraintDescriptorGroupsValid(constraint)) { writeConstraintDescriptor(sw, constraint, ElementType.TYPE, convertConstraintOriginEnum(constraintHibernate.getDefinedOn()), constraintDescriptorVar("this", count++)); } } // Now write the BeanDescriptor after we already have the // PropertyDescriptors and class constraints writeBeanDescriptor(sw); sw.println(); } private void writeFieldWrapperMethod(SourceWriter sw, JField field) { writeUnsafeNativeLongIfNeeded(sw, field.getType()); // private native fieldType _fieldName(com.example.Bean object) /*-{ sw.print("private native "); sw.print(field.getType().getQualifiedSourceName()); sw.print(" "); sw.print(toWrapperName(field)); sw.print("("); sw.print(field.getEnclosingType().getQualifiedSourceName()); sw.println(" object) /*-{"); sw.indent(); // return [email protected]::myMethod(); sw.print("return object.@"); sw.print(field.getEnclosingType().getQualifiedSourceName()); sw.print("::" + field.getName()); sw.println(";"); // }-*/; sw.outdent(); sw.println("}-*/;"); } private void writeGetBeanMetadata(SourceWriter sw) { // public BeanMetadata getBeanMetadata() { sw.println("public BeanMetadata getBeanMetadata() {"); sw.indent(); // return beanMetadata; sw.println("return beanMetadata;"); // } sw.outdent(); sw.println("}"); } private void writeGetDescriptor(SourceWriter sw) { // public GwtBeanDescriptor // getConstraints(ValidationGroupsMetadata validationGroupsMetadata) { sw.print("public "); sw.print("GwtBeanDescriptor<" + beanHelper.getTypeCanonicalName() + "> "); sw.println("getConstraints(ValidationGroupsMetadata validationGroupsMetadata) {"); sw.indent(); // beanDescriptor.setValidationGroupsMetadata(validationGroupsMetadata); sw.println("beanDescriptor.setValidationGroupsMetadata(validationGroupsMetadata);"); // 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 [email protected]::myMethod()(); sw.print("return object."); sw.print(method.getJsniSignature()); sw.println("();"); // }-*/; sw.outdent(); sw.println("}-*/;"); } private void writeIfPropertyNameNotFound(SourceWriter sw) { // if (!ALL_PROPERTY_NAMES.contains(propertyName)) { sw.println(" if (!ALL_PROPERTY_NAMES.contains(propertyName)) {"); 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("}"); } private void writeNewAnnotation(SourceWriter sw, ConstraintDescriptor constraint) throws UnableToCompleteException { Annotation annotation = constraint.getAnnotation(); Class annotationType = annotation.annotationType(); // new MyAnnotation () { sw.print("new "); sw.print(annotationType.getCanonicalName()); sw.println("(){"); sw.indent(); sw.indent(); // public Class annotationType() { return // MyAnnotation.class; } sw.print("public Class 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, String violationName) { // Set> violations = sw.print("Set> "); sw.print(violationName); sw.println(" = "); sw.indent(); sw.indent(); // new HashSet>(); sw.println("new HashSet>();"); sw.outdent(); sw.outdent(); } /** * @param sw * @param p */ private void writePropertyDescriptor(SourceWriter sw, PropertyDescriptor p) { // private final PropertyDescriptor myProperty_pd = sw.print("private final "); sw.print(PropertyDescriptorImpl.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()) + ","); // beanMetadata, sw.print("beanMetadata"); // myProperty_c0, // myProperty_c1 ); int count = 0; for (ConstraintDescriptor constraint : p.getConstraintDescriptors()) { if (areConstraintDescriptorGroupsValid(constraint)) { sw.println(","); // Print the , for the previous line sw.print(constraintDescriptorVar(p.getPropertyName(), count)); count++; } } sw.println(");"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); } private void writePropertyValidators(SourceWriter sw) throws UnableToCompleteException { for (PropertyDescriptor p : beanHelper.getBeanDescriptor().getConstrainedProperties()) { if (beanHelper.hasField(p)) { writeValidatePropertyMethod(sw, p, true); sw.println(); } if (beanHelper.hasGetter(p)) { writeValidatePropertyMethod(sw, p, false); sw.println(); } } } private void writeValidateAllNonInheritedProperties(SourceWriter sw) { // private void validateAllNonInheritedProperties( sw.println("private void validateAllNonInheritedProperties("); sw.indent(); sw.indent(); // GwtValidationContext context, BeanType object, // Set> violations, Class... groups) { sw.println("GwtValidationContext context,"); sw.println(beanHelper.getTypeCanonicalName() + " object,"); sw.println("Set> violations,"); sw.println("Class... groups) {"); sw.outdent(); for (PropertyDescriptor p : beanHelper.getBeanDescriptor().getConstrainedProperties()) { writeValidatePropertyCall(sw, p, false, true); } sw.outdent(); sw.println("}"); } private void writeValidateClassGroups(SourceWriter sw) throws UnableToCompleteException { // public void validateClassGroups( sw.println("public void validateClassGroups("); // GwtValidationContext context, BeanType object, // Set> violations, Group... groups) { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println(beanHelper.getTypeCanonicalName() + " object,"); sw.println("Set> violations,"); sw.println("Class... groups) {"); sw.outdent(); // /// 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 // including all reachable and cascadable associations sw.println("validateAllNonInheritedProperties(context, object, violations, groups);"); // validate super classes and super interfaces writeValidateInheritance(sw, beanHelper.getClazz(), Stage.OBJECT, null, false, "groups"); writeClassLevelConstraintsValidation(sw, "groups"); // } sw.outdent(); sw.println("}"); } private void writeValidateConstraint(SourceWriter sw, PropertyDescriptor p, Class elementClass, ConstraintDescriptor constraint, String constraintDescriptorVar) throws UnableToCompleteException { writeValidateConstraint(sw, p, elementClass, constraint, constraintDescriptorVar, DEFAULT_VIOLATION_VAR); } /** * Writes the call to actually validate a constraint, including its composite * constraints. *

* If the constraint is annotated as * {@link javax.validation.ReportAsSingleViolation ReportAsSingleViolation}, * then is called recursively and the {@code violationsVar} is changed to * match the {@code constraintDescriptorVar}. * * @param sw the Source Writer * @param p the property * @param elementClass The class of the Element * @param constraint the constraint to validate. * @param constraintDescriptorVar the name of the constraintDescriptor * variable. * @param violationsVar the name of the variable to hold violations * @throws UnableToCompleteException */ private void writeValidateConstraint(SourceWriter sw, PropertyDescriptor p, Class elementClass, ConstraintDescriptor constraint, String constraintDescriptorVar, String violationsVar) throws UnableToCompleteException { boolean isComposite = !constraint.getComposingConstraints().isEmpty(); boolean firstReportAsSingleViolation = constraint.isReportAsSingleViolation() && violationsVar.equals(DEFAULT_VIOLATION_VAR) && isComposite; boolean reportAsSingleViolation = firstReportAsSingleViolation || !violationsVar.equals(DEFAULT_VIOLATION_VAR); boolean hasValidator = !constraint.getConstraintValidatorClasses() .isEmpty(); String compositeViolationsVar = constraintDescriptorVar + "_violations"; // Only do this the first time in a constraint composition. if (firstReportAsSingleViolation) { // Report myConstraint as Single Violation sw.print("// Report "); sw.print(constraint.getAnnotation().annotationType().getCanonicalName()); sw.println(" as Single Violation"); writeNewViolations(sw, compositeViolationsVar); } if (hasValidator) { Class> validatorClass; try { validatorClass = getValidatorForType(constraint, elementClass); } catch (UnexpectedTypeException e) { throw error(logger, e); } if (firstReportAsSingleViolation) { // if (! sw.println("if (!"); sw.indent(); sw.indent(); } // validate(myContext, violations object, value, new MyValidator(), // constraintDescriptor, groups)); sw.print("validate(myContext, "); sw.print(violationsVar); sw.print(", object, value, "); sw.print("new "); sw.print(validatorClass.getCanonicalName()); sw.print("(), "); sw.print(constraintDescriptorVar); sw.print(", groups)"); if (firstReportAsSingleViolation) { // ) { sw.println(") {"); sw.outdent(); } else if (!reportAsSingleViolation) { // ; sw.println(";"); } else if (isComposite) { // || sw.println(" ||"); } } else if (!isComposite) { // TODO(nchalko) What does the spec say to do here. logger.log(TreeLogger.WARN, "No ConstraintValidator of " + constraint + " for " + p.getPropertyName() + " of type " + elementClass); } if (firstReportAsSingleViolation) { // if ( sw.print("if ("); sw.indent(); sw.indent(); } int count = 0; for (ConstraintDescriptor compositeConstraint : constraint .getComposingConstraints()) { String compositeVar = constraintDescriptorVar + "_" + count++; writeValidateConstraint(sw, p, elementClass, compositeConstraint, compositeVar, firstReportAsSingleViolation ? compositeViolationsVar : violationsVar); if (!reportAsSingleViolation) { // ; sw.println(";"); } else { // || sw.println(" ||"); } } if (isComposite && reportAsSingleViolation) { // false sw.print("false"); } if (firstReportAsSingleViolation) { // ) { sw.println(" ) {"); sw.outdent(); // addSingleViolation(myContext, violations, object, value, // constraintDescriptor); sw.print("addSingleViolation(myContext, violations, object, value, "); sw.print(constraintDescriptorVar); sw.println(");"); // } sw.outdent(); sw.println("}"); if (hasValidator) { // } sw.outdent(); sw.println("}"); } } } private void writeValidateFieldCall(SourceWriter sw, PropertyDescriptor p, boolean useValue, boolean honorValid) { String propertyName = p.getPropertyName(); // validateProperty_<>(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(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(p, true))); 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(", "); // honorValid, groups); sw.print(Boolean.toString(honorValid)); sw.println(", groups);"); } private void writeValidateGetterCall(SourceWriter sw, PropertyDescriptor p, boolean useValue, boolean honorValid) { // validateProperty_get<>(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(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(p, false))); 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(", "); // honorValid, groups); sw.print(Boolean.toString(honorValid)); sw.println(", groups);"); } private void writeValidateInheritance(SourceWriter sw, Class clazz, Stage stage, PropertyDescriptor property) throws UnableToCompleteException { writeValidateInheritance(sw, clazz, stage, property, false, "groups"); } private void writeValidateInheritance(SourceWriter sw, Class clazz, Stage stage, PropertyDescriptor property, boolean expandDefaultGroupSequence, String groupsVarName) throws UnableToCompleteException { writeValidateInterfaces(sw, clazz, stage, property, expandDefaultGroupSequence, groupsVarName); Class superClass = clazz.getSuperclass(); if (superClass != null) { writeValidatorCall(sw, superClass, stage, property, expandDefaultGroupSequence, groupsVarName); } } private void writeValidateInterfaces(SourceWriter sw, Class clazz, Stage stage, PropertyDescriptor p, boolean expandDefaultGroupSequence, String groupsVarName) throws UnableToCompleteException { for (Class type : clazz.getInterfaces()) { writeValidatorCall(sw, type, stage, p, expandDefaultGroupSequence, groupsVarName); writeValidateInterfaces(sw, type, stage, p, expandDefaultGroupSequence, groupsVarName); } } private void writeValidateIterable(SourceWriter sw, PropertyDescriptor p) { // int i = 0; sw.println("int i = 0;"); // for (Object instance : value) { sw.println("for(Object instance : value) {"); sw.indent(); // if(instance != null && !context.alreadyValidated(instance)) { sw.println(" if(instance != null && !context.alreadyValidated(instance)) {"); sw.indent(); // violations.addAll( sw.println("violations.addAll("); sw.indent(); sw.indent(); // context.getValidator().validate( sw.println("context.getValidator().validate("); sw.indent(); sw.indent(); Class elementClass = p.getElementClass(); if (elementClass.isArray() || List.class.isAssignableFrom(elementClass)) { // context.appendIndex("myProperty",i++), sw.print("context.appendIndex(\""); sw.print(p.getPropertyName()); sw.println("\",i),"); } else { // context.appendIterable("myProperty"), sw.print("context.appendIterable(\""); sw.print(p.getPropertyName()); sw.println("\"),"); } // instance, groups)); sw.println("instance, groups));"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); // } sw.outdent(); sw.println("}"); // i++; sw.println("i++;"); // } sw.outdent(); sw.println("}"); } private void writeValidateMap(SourceWriter sw, PropertyDescriptor p) { // for (Entry entry : value.entrySet()) { sw.print("for("); sw.print(Entry.class.getCanonicalName()); sw.println(" entry : value.entrySet()) {"); sw.indent(); // if(entry.getValue() != null && // !context.alreadyValidated(entry.getValue())) { sw.println(" if(entry.getValue() != null && !context.alreadyValidated(entry.getValue())) {"); sw.indent(); // violations.addAll( sw.println("violations.addAll("); sw.indent(); sw.indent(); // context.getValidator().validate( sw.println("context.getValidator().validate("); sw.indent(); sw.indent(); // context.appendKey("myProperty",entry.getKey()), sw.print("context.appendKey(\""); sw.print(p.getPropertyName()); sw.println("\",entry.getKey()),"); // entry.getValue(), groups)); sw.println("entry.getValue(), groups));"); sw.outdent(); sw.outdent(); sw.outdent(); sw.outdent(); // } sw.outdent(); sw.println("}"); // } sw.outdent(); sw.println("}"); } private void writeValidatePropertyCall(SourceWriter sw, PropertyDescriptor property, boolean useValue, boolean honorValid) { if (useValue) { // boolean valueTypeMatches = false; sw.println("boolean valueTypeMatches = false;"); } if (beanHelper.hasGetter(property)) { if (useValue) { // if ( value == null || value instanceof propertyType) { sw.print("if ( value == null || value instanceof "); sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType( property, false))); sw.println(") {"); sw.indent(); // valueTypeMatches = true; sw.println("valueTypeMatches = true;"); } // validate_getMyProperty writeValidateGetterCall(sw, property, useValue, honorValid); if (useValue) { // } sw.outdent(); sw.println("}"); } } if (beanHelper.hasField(property)) { if (useValue) { // if ( value == null || value instanceof propertyType) { sw.print("if ( value == null || value instanceof "); sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType( property, true))); sw.println(") {"); sw.indent(); // valueTypeMatches = true; sw.println("valueTypeMatches = true;"); } // validate_myProperty writeValidateFieldCall(sw, property, useValue, honorValid); if (useValue) { // } else sw.outdent(); sw.println("}"); } } if (useValue & (beanHelper.hasGetter(property) || beanHelper.hasField(property))) { // if(!valueTypeMatches) { sw.println("if(!valueTypeMatches) {"); sw.indent(); // throw new ValidationException(value.getClass + // " is not a valid type for " + propertyName); sw.print("throw new ValidationException"); sw.println("(value.getClass() +\" is not a valid type for \"+ propertyName);"); // } sw.outdent(); sw.println("}"); } } private void writeValidatePropertyGroups(SourceWriter sw) throws UnableToCompleteException { // public void validatePropertyGroups( sw.println("public void validatePropertyGroups("); // GwtValidationContext context, BeanType object, String propertyName, // Set> violations, Class... groups) throws ValidationException { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println(beanHelper.getTypeCanonicalName() + " object,"); sw.println("String propertyName,"); sw.println("Set> violations,"); sw.println("Class... groups) throws ValidationException {"); sw.outdent(); 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, false); // validate all super classes and interfaces writeValidateInheritance(sw, beanHelper.getClazz(), Stage.PROPERTY, property); // } sw.outdent(); sw.print("} else "); } writeIfPropertyNameNotFound(sw); // } sw.outdent(); sw.println("}"); } private void writeValidatePropertyMethod(SourceWriter sw, PropertyDescriptor p, boolean useField) throws UnableToCompleteException { Class elementClass = p.getElementClass(); JType elementType = beanHelper.getElementType(p, useField); // private final void validateProperty_{get}

( sw.print("private final void "); if (useField) { sw.print(validateMethodFieldName(p)); } else { sw.print(validateMethodGetterName(p)); } sw.println("("); sw.indent(); sw.indent(); // final GwtValidationContext context, sw.println("final GwtValidationContext context,"); // final Set> violations, sw.println("final Set> violations,"); // BeanType object, sw.println(beanHelper.getTypeCanonicalName() + " object,"); // final value, sw.print("final "); sw.print(elementType.getParameterizedQualifiedSourceName()); sw.println(" value,"); // boolean honorValid, sw.println("boolean honorValid,"); // Class... groups) { sw.println("Class... groups) {"); sw.outdent(); // only write the checks if the property is constrained in some way if (isPropertyConstrained(p, useField)) { // context = context.append("myProperty"); sw.print("final GwtValidationContext myContext = context.append(\""); sw.print(p.getPropertyName()); sw.println("\");"); // only check this property if the TraversableResolver says we can // Node leafNode = myContext.getPath().getLeafNode(); sw.println("Node leafNode = myContext.getPath().getLeafNode();"); // PathImpl path = myContext.getPath().getPathWithoutLeafNode(); sw.println("PathImpl path = myContext.getPath().getPathWithoutLeafNode();"); // boolean isReachable; sw.println("boolean isReachable;"); // try { sw.println("try {"); sw.indent(); // isReachable = myContext.getTraversableResolver().isReachable(object, leafNode, // myContext.getRootBeanClass(), path, ElementType); sw.println("isReachable = myContext.getTraversableResolver().isReachable(object, " + "leafNode, myContext.getRootBeanClass(), path, " + (useField ? asLiteral(ElementType.FIELD) : asLiteral(ElementType.METHOD)) + ");"); // } catch (Exception e) { sw.outdent(); sw.println("} catch (Exception e) {"); sw.indent(); // throw new ValidationException("TraversableResolver isReachable caused an exception", e); sw.println("throw new ValidationException(\"TraversableResolver isReachable caused an " + "exception\", e);"); // } sw.outdent(); sw.println("}"); // if (isReachable) { sw.println("if (isReachable) {"); sw.indent(); // TODO(nchalko) move this out of here to the Validate method if (p.isCascaded() && hasValid(p, useField)) { // if (honorValid && value != null) { sw.println("if (honorValid && value != null) {"); sw.indent(); // boolean isCascadable; sw.println("boolean isCascadable;"); // try { sw.println("try {"); sw.indent(); // isCascadable = myContext.getTraversableResolver().isCascadable(object, leafNode, // myContext.getRootBeanClass(), path, ElementType) sw.println("isCascadable = myContext.getTraversableResolver().isCascadable(object, " + "leafNode, myContext.getRootBeanClass(), path, " + (useField ? asLiteral(ElementType.FIELD) : asLiteral(ElementType.METHOD)) + ");"); // } catch (Exception e) { sw.outdent(); sw.println("} catch (Exception e) {"); sw.indent(); // throw new ValidationException("TraversableResolver isReachable caused an exception", e); sw.println("throw new ValidationException(\"TraversableResolver isCascadable caused an " + "exception\", e);"); // } sw.outdent(); sw.println("}"); // if (isCascadable) { sw.println("if (isCascadable) {"); sw.indent(); if (isIterableOrMap(elementClass)) { JClassType associationType = beanHelper.getAssociationType(p, useField); createBeanHelper(associationType); if (Map.class.isAssignableFrom(elementClass)) { writeValidateMap(sw, p); } else { writeValidateIterable(sw, p); } } else { createBeanHelper(elementClass); // if (!context.alreadyValidated(value)) { sw.println(" if (!context.alreadyValidated(value)) {"); sw.indent(); // violations.addAll(myContext.getValidator().validate(context, value, // groups)); sw.print("violations.addAll("); sw.println("myContext.getValidator().validate(myContext, value, groups));"); // } sw.outdent(); sw.println("}"); } // } sw.outdent(); sw.println("}"); // } sw.outdent(); sw.println("}"); } // It is possible for an annotation with the exact same values to be set on // both the field and the getter. // Keep track of the ones we have used to make sure we don't duplicate. Set includedAnnotations = Sets.newHashSet(); int count = 0; for (ConstraintDescriptor constraint : p.getConstraintDescriptors()) { if (areConstraintDescriptorGroupsValid(constraint)) { Object annotation = constraint.getAnnotation(); if (hasMatchingAnnotation(p, useField, constraint)) { String constraintDescriptorVar = constraintDescriptorVar(p.getPropertyName(), count); if (!includedAnnotations.contains(annotation)) { if (useField) { writeValidateConstraint(sw, p, elementClass, constraint, constraintDescriptorVar); } else { // The annotation hasn't been looked at twice (yet) and we are validating a getter // Write the call if only the getter has this constraint applied to it boolean hasField = beanHelper.hasField(p); if (!hasField || (hasField && !hasMatchingAnnotation(p, true, constraint))) { writeValidateConstraint(sw, p, elementClass, constraint, constraintDescriptorVar); } } } else { // The annotation has been looked at once already during this validate property call // so we know the field and the getter are both annotated with the same constraint. if (!useField) { writeValidateConstraint(sw, p, elementClass, constraint, constraintDescriptorVar); } } includedAnnotations.add(annotation); } count++; } } // } sw.outdent(); sw.println("}"); } sw.outdent(); sw.println("}"); } private void writeValidateValueGroups(SourceWriter sw) throws UnableToCompleteException { // public void validateValueGroups( sw.println("public void validateValueGroups("); // GwtValidationContext context, Class beanType, String propertyName, // Object value, Set> violations, Class... groups) { sw.indent(); sw.indent(); sw.println("GwtValidationContext context,"); sw.println("Class<" + beanHelper.getTypeCanonicalName() + "> beanType,"); sw.println("String propertyName,"); sw.println("Object value,"); sw.println("Set> violations,"); sw.println("Class... groups) {"); sw.outdent(); for (PropertyDescriptor property : beanHelper.getBeanDescriptor().getConstrainedProperties()) { // if (propertyName.equals(myPropety)) { sw.print("if (propertyName.equals(\""); sw.print(property.getPropertyName()); sw.println("\")) {"); sw.indent(); if (!isIterableOrMap(property.getElementClass())) { writeValidatePropertyCall(sw, property, true, false); } // validate all super classes and interfaces writeValidateInheritance(sw, beanHelper.getClazz(), Stage.VALUE, property); // } sw.outdent(); sw.print("} else "); } writeIfPropertyNameNotFound(sw); sw.outdent(); sw.println("}"); } /** * @param p Only used if writing a call to validate a property - otherwise can be null. * @param expandDefaultGroupSequence Only used if writing a call to validate a bean. * @param groupsVarName The name of the variable containing the groups. */ private void writeValidatorCall(SourceWriter sw, Class type, Stage stage, PropertyDescriptor p, boolean expandDefaultGroupSequence, String groupsVarName) throws UnableToCompleteException { if (cache.isClassConstrained(type) && !isIterableOrMap(type)) { BeanHelper helper = createBeanHelper(type); beansToValidate.add(helper); switch (stage) { case OBJECT: // myValidator sw.print(helper.getValidatorInstanceName()); if (expandDefaultGroupSequence) { // .expandDefaultAndValidateClassGroups(context,object,violations,groups); sw.println(".expandDefaultAndValidateClassGroups(context, object, violations, " + groupsVarName + ");"); } else { // .validateClassGroups(context,object,violations,groups); sw.println(".validateClassGroups(context, object, violations, " + groupsVarName + ");"); } break; case PROPERTY: if (isPropertyConstrained(helper, p)) { // myValidator.validatePropertyGroups(context,object // ,propertyName, violations, groups); sw.print(helper.getValidatorInstanceName()); sw.print(".validatePropertyGroups(context, object,"); sw.println(" propertyName, violations, " + groupsVarName + ");"); } break; case VALUE: if (isPropertyConstrained(helper, p)) { // myValidator.validateValueGroups(context,beanType // ,propertyName, value, violations, groups); sw.print(helper.getValidatorInstanceName()); sw.print(".validateValueGroups(context, "); sw.print(helper.getTypeCanonicalName()); sw.println(".class, propertyName, value, violations, " + groupsVarName + ");"); } break; default: throw new IllegalStateException(); } } } 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(); } } }