/*
* Copyright 2009 Andrew Pietsch
*
* 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.dragome.forms.bindings.client.form.validation;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import com.dragome.forms.bindings.client.form.FormattedListFieldModel;
import com.dragome.forms.bindings.client.value.ValueModel;
import com.dragome.model.interfaces.HandlerRegistration;
import com.dragome.model.interfaces.IndexedValidationResult;
import com.dragome.model.interfaces.IndexedValidationResultCollector;
import com.dragome.model.interfaces.Severity;
import com.dragome.model.interfaces.ValidationMessage;
/**
* Created by IntelliJ IDEA.
* User: andrew
* Date: Jul 13, 2009
* Time: 9:47:41 AM
* To change this template use File | Settings | File Templates.
*/
public class FormattedListFieldValidatorImpl<T> extends AbstractFieldValidator implements FormattedListFieldValidator<T>
{
private FormattedListFieldModel<T> fieldModel;
private IndexedValidationResultImpl validationResult= new IndexedValidationResultImpl();
private LinkedHashMap<ListValidator<? super String>, ValueModel<Boolean>> textValidators= new LinkedHashMap<ListValidator<? super String>, ValueModel<Boolean>>();
private LinkedHashMap<ListValidator<? super T>, ValueModel<Boolean>> validators= new LinkedHashMap<ListValidator<? super T>, ValueModel<Boolean>>();
public FormattedListFieldValidatorImpl(FormattedListFieldModel<T> fieldModel)
{
if (fieldModel == null)
{
throw new NullPointerException("fieldModel is null");
}
this.fieldModel= fieldModel;
}
public void addValidator(ListValidator<? super T> validator, ValueModel<Boolean> condition)
{
if (validator == null)
{
throw new NullPointerException("validator is null");
}
if (condition == null)
{
throw new NullPointerException("condition is null");
}
validators.put(validator, condition);
}
public void addTextValidator(ListValidator<? super String> validator, ValueModel<Boolean> condition)
{
if (validator == null)
{
throw new NullPointerException("validator is null");
}
if (condition == null)
{
throw new NullPointerException("condition is null");
}
textValidators.put(validator, condition);
}
public FormattedListFieldModel<T> getFieldModel()
{
return fieldModel;
}
public boolean validate()
{
IndexedValidationResultImpl result= new IndexedValidationResultImpl();
runValidators(result);
setValidationResult(result);
return !result.contains(Severity.ERROR);
}
public void runValidators(IndexedValidationResultCollector collector)
{
runTextValidators(collector);
runValueValidators(collector);
}
public void runTextValidators(IndexedValidationResultCollector collector)
{
runTextValidators(fieldModel.getTextModel().asUnmodifiableList(), collector);
}
public void runValueValidators(IndexedValidationResultCollector collector)
{
runValueValidators(fieldModel.asUnmodifiableList(), collector);
}
private void runTextValidators(List<String> values, IndexedValidationResultCollector collector)
{
if (values == null)
{
throw new NullPointerException("values is null");
}
if (collector == null)
{
throw new NullPointerException("collector is null");
}
for (Map.Entry<ListValidator<? super String>, ValueModel<Boolean>> entry : textValidators.entrySet())
{
ListValidator<? super String> validator= entry.getKey();
ValueModel<Boolean> condition= entry.getValue();
if (conditionSatisfied(condition))
{
validator.validate(values, collector);
}
}
}
protected void runValueValidators(List<T> values, IndexedValidationResultCollector collector)
{
if (values == null)
{
throw new NullPointerException("values is null");
}
if (collector == null)
{
throw new NullPointerException("collector is null");
}
for (Map.Entry<ListValidator<? super T>, ValueModel<Boolean>> entry : validators.entrySet())
{
ListValidator<? super T> validator= entry.getKey();
ValueModel<Boolean> condition= entry.getValue();
if (conditionSatisfied(condition))
{
validator.validate(values, collector);
}
}
}
public IndexedValidationResult getValidationResult()
{
return validationResult;
}
private void setValidationResult(IndexedValidationResultImpl result)
{
validationResult= result;
fireValidationChanged();
}
public void addExternalMessage(ValidationMessage message)
{
validationResult.add(message);
fireValidationChanged();
}
public void addExternalMessage(int index, ValidationMessage message)
{
validationResult.add(index, message);
fireValidationChanged();
}
public void clear()
{
setValidationResult(new IndexedValidationResultImpl());
}
private void fireValidationChanged()
{
IndexedValidationEvent.fire(this, validationResult);
}
public HandlerRegistration addValidationHandler(ValidationHandler handler)
{
return addHandler(ValidationEvent.getType(), handler);
}
public HandlerRegistration addValidationHandler(IndexedValidationHandler handler)
{
return addHandler(IndexedValidationEvent.getType(), handler);
}
}