| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 javax.faces.validator; |
| |
| import org.apache.myfaces.core.api.shared.MessageUtils; |
| import javax.faces.component.PartialStateHolder; |
| import javax.faces.component.UIComponent; |
| import javax.faces.context.FacesContext; |
| |
| import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFJspProperty; |
| import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFProperty; |
| import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFValidator; |
| |
| /** |
| * Creates a validator and associateds it with the nearest parent |
| * UIComponent. When invoked, the validator ensures that values are |
| * valid doubles that lie within the minimum and maximum values specified. |
| * |
| * Commonly associated with a h:inputText entity. |
| * |
| * Unless otherwise specified, all attributes accept static values or EL expressions. |
| * |
| * see Javadoc of <a href="http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.html">JSF Specification</a> |
| */ |
| @JSFValidator( |
| name="f:validateDoubleRange", |
| bodyContent="empty", |
| tagClass="org.apache.myfaces.taglib.core.ValidateDoubleRangeTag") |
| @JSFJspProperty( |
| name="binding", |
| returnType = "javax.faces.validator.DoubleRangeValidator", |
| longDesc = "A ValueExpression that evaluates to a DoubleRangeValidator.") |
| public class DoubleRangeValidator |
| implements Validator, PartialStateHolder |
| { |
| // FIELDS |
| public static final String VALIDATOR_ID = "javax.faces.DoubleRange"; |
| public static final String MAXIMUM_MESSAGE_ID = "javax.faces.validator.DoubleRangeValidator.MAXIMUM"; |
| public static final String MINIMUM_MESSAGE_ID = "javax.faces.validator.DoubleRangeValidator.MINIMUM"; |
| public static final String TYPE_MESSAGE_ID = "javax.faces.validator.DoubleRangeValidator.TYPE"; |
| public static final String NOT_IN_RANGE_MESSAGE_ID = "javax.faces.validator.DoubleRangeValidator.NOT_IN_RANGE"; |
| |
| private Double _minimum = null; |
| private Double _maximum = null; |
| private boolean _transient = false; |
| private boolean _initialStateMarked = false; |
| |
| // CONSTRUCTORS |
| public DoubleRangeValidator() |
| { |
| } |
| |
| public DoubleRangeValidator(double maximum) |
| { |
| _maximum = new Double(maximum); |
| } |
| |
| public DoubleRangeValidator(double maximum, double minimum) |
| { |
| _maximum = new Double(maximum); |
| _minimum = new Double(minimum); |
| } |
| |
| // VALIDATE |
| @Override |
| public void validate(FacesContext facesContext, UIComponent uiComponent, Object value) |
| throws ValidatorException |
| { |
| if (facesContext == null) |
| { |
| throw new NullPointerException("facesContext"); |
| } |
| if (uiComponent == null) |
| { |
| throw new NullPointerException("uiComponent"); |
| } |
| |
| if (value == null) |
| { |
| return; |
| } |
| |
| double dvalue = parseDoubleValue(facesContext, uiComponent,value); |
| if (_minimum != null && _maximum != null) |
| { |
| if (dvalue < _minimum || dvalue > _maximum) |
| { |
| Object[] args = {_minimum, _maximum,MessageUtils.getLabel(facesContext, uiComponent)}; |
| throw new ValidatorException(MessageUtils.getErrorMessage(facesContext, NOT_IN_RANGE_MESSAGE_ID, |
| args)); |
| } |
| } |
| else if (_minimum != null) |
| { |
| if (dvalue < _minimum) |
| { |
| Object[] args = {_minimum,MessageUtils.getLabel(facesContext, uiComponent)}; |
| throw new ValidatorException(MessageUtils.getErrorMessage(facesContext, MINIMUM_MESSAGE_ID, args)); |
| } |
| } |
| else if (_maximum != null) |
| { |
| if (dvalue > _maximum) |
| { |
| Object[] args = {_maximum,MessageUtils.getLabel(facesContext, uiComponent)}; |
| throw new ValidatorException(MessageUtils.getErrorMessage(facesContext, MAXIMUM_MESSAGE_ID, args)); |
| } |
| } |
| } |
| |
| private double parseDoubleValue(FacesContext facesContext, UIComponent uiComponent, Object value) |
| throws ValidatorException |
| { |
| if (value instanceof Number) |
| { |
| return ((Number)value).doubleValue(); |
| } |
| |
| try |
| { |
| return Double.parseDouble(value.toString()); |
| } |
| catch (NumberFormatException e) |
| { |
| Object[] args = {MessageUtils.getLabel(facesContext, uiComponent)}; |
| throw new ValidatorException(MessageUtils.getErrorMessage(facesContext, TYPE_MESSAGE_ID, args)); |
| } |
| } |
| |
| |
| // GETTER & SETTER |
| |
| /** |
| * The largest value that should be considered valid. |
| * |
| */ |
| @JSFProperty(deferredValueType="java.lang.Double") |
| public double getMaximum() |
| { |
| return _maximum != null ? _maximum : Double.MAX_VALUE; |
| } |
| |
| public void setMaximum(double maximum) |
| { |
| _maximum = Double.valueOf(maximum); |
| clearInitialState(); |
| } |
| |
| /** |
| * The smallest value that should be considered valid. |
| * |
| */ |
| @JSFProperty(deferredValueType="java.lang.Double") |
| public double getMinimum() |
| { |
| return _minimum != null ? _minimum : Double.MIN_VALUE; |
| } |
| |
| public void setMinimum(double minimum) |
| { |
| _minimum = Double.valueOf(minimum); |
| clearInitialState(); |
| } |
| |
| |
| // RESTORE/SAVE STATE |
| @Override |
| public Object saveState(FacesContext context) |
| { |
| if (context == null) |
| { |
| throw new NullPointerException("context"); |
| } |
| |
| if (!initialStateMarked()) |
| { |
| Object values[] = new Object[2]; |
| values[0] = _maximum; |
| values[1] = _minimum; |
| return values; |
| } |
| return null; |
| } |
| |
| @Override |
| public void restoreState(FacesContext context, Object state) |
| { |
| if (context == null) |
| { |
| throw new NullPointerException("context"); |
| } |
| |
| if (state != null) |
| { |
| Object values[] = (Object[])state; |
| _maximum = (Double)values[0]; |
| _minimum = (Double)values[1]; |
| } |
| } |
| |
| @Override |
| public boolean isTransient() |
| { |
| return _transient; |
| } |
| |
| @Override |
| public void setTransient(boolean transientValue) |
| { |
| _transient = transientValue; |
| } |
| |
| // MISC |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| if (!(o instanceof DoubleRangeValidator)) |
| { |
| return false; |
| } |
| |
| DoubleRangeValidator doubleRangeValidator = (DoubleRangeValidator)o; |
| |
| if (_maximum != null ? !_maximum.equals(doubleRangeValidator._maximum) : doubleRangeValidator._maximum != null) |
| { |
| return false; |
| } |
| if (_minimum != null ? !_minimum.equals(doubleRangeValidator._minimum) : doubleRangeValidator._minimum != null) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public void clearInitialState() |
| { |
| _initialStateMarked = false; |
| } |
| |
| @Override |
| public boolean initialStateMarked() |
| { |
| return _initialStateMarked; |
| } |
| |
| @Override |
| public void markInitialState() |
| { |
| _initialStateMarked = true; |
| } |
| |
| @JSFProperty(faceletsOnly=true) |
| @SuppressWarnings("unused") |
| private Boolean isDisabled() |
| { |
| return null; |
| } |
| |
| @JSFProperty(faceletsOnly=true) |
| @SuppressWarnings("unused") |
| private String getFor() |
| { |
| return null; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int result = _minimum != null ? _minimum.hashCode() : 0; |
| result = 31 * result + (_maximum != null ? _maximum.hashCode() : 0); |
| return result; |
| } |
| } |