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JSR 380's RI, Hibernate Validator version ${hibernate-validator.version} and its dependencies repackaged as OSGi bundle
/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or .
*/
package org.hibernate.validator.internal.cfg.context;
import static org.hibernate.validator.internal.util.CollectionHelper.newArrayList;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.Executable;
import java.util.Collections;
import java.util.List;
import org.hibernate.validator.cfg.context.CrossParameterConstraintMappingContext;
import org.hibernate.validator.cfg.context.ParameterConstraintMappingContext;
import org.hibernate.validator.cfg.context.ReturnValueConstraintMappingContext;
import org.hibernate.validator.internal.engine.valueextraction.ValueExtractorManager;
import org.hibernate.validator.internal.metadata.aggregated.CascadingMetaDataBuilder;
import org.hibernate.validator.internal.metadata.core.ConstraintHelper;
import org.hibernate.validator.internal.metadata.core.MetaConstraint;
import org.hibernate.validator.internal.metadata.raw.ConfigurationSource;
import org.hibernate.validator.internal.metadata.raw.ConstrainedElement;
import org.hibernate.validator.internal.metadata.raw.ConstrainedExecutable;
import org.hibernate.validator.internal.metadata.raw.ConstrainedParameter;
import org.hibernate.validator.internal.util.ReflectionHelper;
import org.hibernate.validator.internal.util.TypeResolutionHelper;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* A constraint mapping creational context which allows to select the parameter or
* return value to which the next operations shall apply.
*
* @author Kevin Pollet <[email protected]> (C) 2011 SERLI
* @author Gunnar Morling
*/
abstract class ExecutableConstraintMappingContextImpl {
private static final Log LOG = LoggerFactory.make( MethodHandles.lookup() );
protected final TypeConstraintMappingContextImpl typeContext;
protected final Executable executable;
private final ParameterConstraintMappingContextImpl[] parameterContexts;
private ReturnValueConstraintMappingContextImpl returnValueContext;
private CrossParameterConstraintMappingContextImpl crossParameterContext;
protected ExecutableConstraintMappingContextImpl(TypeConstraintMappingContextImpl typeContext, Executable executable) {
this.typeContext = typeContext;
this.executable = executable;
this.parameterContexts = new ParameterConstraintMappingContextImpl[executable.getParameterTypes().length];
}
public ParameterConstraintMappingContext parameter(int index) {
if ( index < 0 || index >= executable.getParameterTypes().length ) {
throw LOG.getInvalidExecutableParameterIndexException( executable, index );
}
ParameterConstraintMappingContextImpl context = parameterContexts[index];
if ( context != null ) {
throw LOG.getParameterHasAlreadyBeConfiguredViaProgrammaticApiException(
typeContext.getBeanClass(),
executable,
index
);
}
context = new ParameterConstraintMappingContextImpl( this, index );
parameterContexts[index] = context;
return context;
}
public CrossParameterConstraintMappingContext crossParameter() {
if ( crossParameterContext != null ) {
throw LOG.getCrossParameterElementHasAlreadyBeConfiguredViaProgrammaticApiException(
typeContext.getBeanClass(),
executable
);
}
crossParameterContext = new CrossParameterConstraintMappingContextImpl( this );
return crossParameterContext;
}
public ReturnValueConstraintMappingContext returnValue() {
if ( returnValueContext != null ) {
throw LOG.getReturnValueHasAlreadyBeConfiguredViaProgrammaticApiException(
typeContext.getBeanClass(),
executable
);
}
returnValueContext = new ReturnValueConstraintMappingContextImpl( this );
return returnValueContext;
}
public Executable getExecutable() {
return executable;
}
public TypeConstraintMappingContextImpl getTypeContext() {
return typeContext;
}
public ConstrainedElement build(ConstraintHelper constraintHelper, TypeResolutionHelper typeResolutionHelper,
ValueExtractorManager valueExtractorManager) {
return new ConstrainedExecutable(
ConfigurationSource.API,
executable,
getParameters( constraintHelper, typeResolutionHelper, valueExtractorManager ),
crossParameterContext != null ? crossParameterContext.getConstraints( constraintHelper, typeResolutionHelper, valueExtractorManager ) : Collections.>emptySet(),
returnValueContext != null ? returnValueContext.getConstraints( constraintHelper, typeResolutionHelper, valueExtractorManager ) : Collections.>emptySet(),
returnValueContext != null ? returnValueContext.getTypeArgumentConstraints( constraintHelper, typeResolutionHelper, valueExtractorManager ) : Collections.>emptySet(),
returnValueContext != null ? returnValueContext.getCascadingMetaDataBuilder() : CascadingMetaDataBuilder.nonCascading()
);
}
private List getParameters(ConstraintHelper constraintHelper, TypeResolutionHelper typeResolutionHelper,
ValueExtractorManager valueExtractorManager) {
List constrainedParameters = newArrayList();
for ( int i = 0; i < parameterContexts.length; i++ ) {
ParameterConstraintMappingContextImpl parameter = parameterContexts[i];
if ( parameter != null ) {
constrainedParameters.add( parameter.build( constraintHelper, typeResolutionHelper, valueExtractorManager ) );
}
else {
constrainedParameters.add(
new ConstrainedParameter(
ConfigurationSource.API,
executable,
ReflectionHelper.typeOf( executable, i ),
i
)
);
}
}
return constrainedParameters;
}
}