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The Adobe Experience Manager SDK
/*************************************************************************
* ADOBE CONFIDENTIAL
* ___________________
*
* Copyright 2012 Adobe
* All Rights Reserved.
*
* NOTICE: All information contained herein is, and remains
* the property of Adobe and its suppliers, if any. The intellectual
* and technical concepts contained herein are proprietary to Adobe
* and its suppliers and are protected by all applicable intellectual
* property laws, including trade secret and copyright laws.
* Dissemination of this information or reproduction of this material
* is strictly forbidden unless prior written permission is obtained
* from Adobe.
**************************************************************************/
package com.adobe.granite.ui.components;
import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ValueMap;
import com.adobe.granite.ui.components.FormData.NameNotFoundMode;
/**
* A helper for the form field to access the {@link FormData}.
*
*
* To set the FormData, one of the following can be used (ordered by priority):
*
*
* - Set the request attribute using
* {@link FormData#push(SlingHttpServletRequest, ValueMap, NameNotFoundMode)}
* - Set the request attribute using {@link #FORM_VALUESS_ATTRIBUTE} as the
* key
* - Set the request attribute using {@link #CONTENTPATH_ATTRIBUTE} as the
* key
*
*/
public class Value {
/**
* The Servlet attribute key to store the ValueMap of the form values.
*
* @deprecated Use
* {@link FormData#push(SlingHttpServletRequest, ValueMap, NameNotFoundMode)}
* instead
*/
@Deprecated
public static final String FORM_VALUESS_ATTRIBUTE = "granite.ui.form.values";
/**
* The Servlet attribute key to store the path to the resource holding the form
* values.
*
* @deprecated Use
* {@link FormData#push(SlingHttpServletRequest, ValueMap, NameNotFoundMode)}
* instead
*/
@Deprecated
public static final String CONTENTPATH_ATTRIBUTE = "granite.ui.form.contentpath";
@Nonnull
private Config config;
private FormData formData;
/**
* Instantiates a new Value.
*
* @param request
* The request storing the FormData
* @param config
* The config of the form field component
*/
public Value(@Nonnull SlingHttpServletRequest request, @Nonnull Config config) {
this.config = config;
formData = FormData.from(request);
if (formData != null) {
return;
}
ValueMap values = (ValueMap) request.getAttribute(FORM_VALUESS_ATTRIBUTE);
if (values == null) {
String contentPath = (String) request.getAttribute(CONTENTPATH_ATTRIBUTE);
if (contentPath != null) {
Resource contentResource = request.getResourceResolver().getResource(contentPath);
if (contentResource != null) {
values = contentResource.getValueMap();
}
}
}
if (values != null) {
formData = new FormData(values, NameNotFoundMode.IGNORE_FRESHNESS);
}
}
/**
* A shortcut to {@link #get(String, Object)}, with empty string as default
* value.
*
* @param name
* The name of the field
* @return The value converted to type T, or the value of {@code value}
* property, or the given default value, depending on the conditions
* described at {@link #get(String, Object)}.
*/
@Nonnull
public String get(@CheckForNull String name) {
return get(name, "");
}
/**
* Returns the value for the given name, converted to type T.
*
*
* In the {@link NameNotFoundMode#CHECK_FRESHNESS} mode, if the given name is
* not found and the FormData is fresh, then the given fieldValue is returned.
* Otherwise, the given defaultValue is returned.
*
*
*
* In the {@link NameNotFoundMode#IGNORE_FRESHNESS} mode, if the given name is
* not found, then the given fieldValue is returned.
*
*
*
* If the FormData is {@code null} or {@code ignoreData} property of the config
* is {@code true}, this method returns {@code value} property of the config.
*
*
* @param name
* The name of the field
* @param defaultValue
* The default value
* @param
* The type of the value
* @return The value converted to type T, or the value of {@code value}
* property, or the given default value, depending on the conditions
* described above.
*/
@Nonnull
public T get(@CheckForNull String name, @Nonnull T defaultValue) {
T fieldValue = config.get("value", defaultValue);
if (formData == null || config.get("ignoreData", false)) {
return fieldValue;
}
if (name != null) {
return formData.get(name, fieldValue, defaultValue);
} else {
return fieldValue;
}
}
/**
* Returns the value for the given name, converted to type T.
*
*
* In the {@link NameNotFoundMode#CHECK_FRESHNESS} mode, if the given name is
* not found and the FormData is fresh, then the given fieldValue is returned.
* Otherwise, {@code null} is returned.
*
*
*
* In the {@link NameNotFoundMode#IGNORE_FRESHNESS} mode, if the given name is
* not found, then the given fieldValue is returned.
*
*
*
* If the FormData is {@code null} or {@code ignoreData} property of the config
* is {@code true}, this method returns {@code value} property of the config.
*
*
* @param name
* The name of the field
* @param type
* The class of the type
* @param
* The type of the value
* @return The value converted to type T, or the value of {@code value}
* property, or {@code null}, depending on the conditions described
* above.
*/
@CheckForNull
public T get(@CheckForNull String name, @Nonnull Class type) {
T fieldValue = config.get("value", type);
if (formData == null || config.get("ignoreData", false)) {
return fieldValue;
}
if (name != null) {
return formData.get(name, fieldValue, type);
} else {
return fieldValue;
}
}
/**
* A shortcut of {@link #val(String, Object)}, with name is taken from
* {@code name} property of the config.
*
* @param fieldValue
* The value of the field
* @param
* The type of the value
* @return The value converted to type T, or the given fieldValue, or
* {@code null}, depending on the conditions described at
* {@link #val(String, Object)}.
*/
@CheckForNull
public T val(@Nonnull T fieldValue) {
return val(config.get("name", String.class), fieldValue);
}
/**
* Returns the value for the given name, converted to type T.
*
*
* In the {@link NameNotFoundMode#CHECK_FRESHNESS} mode, if the given name is
* not found and the FormData is fresh, then the given fieldValue is returned.
* Otherwise, {@code null} is returned.
*
*
*
* In the {@link NameNotFoundMode#IGNORE_FRESHNESS} mode, if the given name is
* not found, then the given fieldValue is returned.
*
*
*
* If the FormData is {@code null} or {@code ignoreData} property of the config
* is {@code true}, this method returns the given fieldValue.
*
*
*
* The key difference compared to {@link #get(String, Object)} is that this
* method will return the given fieldValue instead of value from {@code value}
* property of the config.
*
*
* @param name
* The name of the field
* @param fieldValue
* The value of the field
* @param
* The type of the value
* @return The value converted to type T, or the given fieldValue, or
* {@code null}, depending on the conditions described above.
*/
@SuppressWarnings("unchecked")
@CheckForNull
public T val(@CheckForNull String name, @Nonnull T fieldValue) {
if (formData == null || config.get("ignoreData", false)) {
return fieldValue;
}
if (name != null) {
return formData.get(name, fieldValue, (Class) fieldValue.getClass());
} else {
return fieldValue;
}
}
/**
* A shortcut of {@link #isSelected(String, String, boolean)}, with name is
* taken from {@code name} property of the config.
*
* @param value
* The value of the field option to compare against
* @param isFieldOptionSelected
* {@code true} if the field option is selected; {@code false}
* otherwise.
* @return Whether the given value is selected or not, or the given
* isFieldOptionSelected, depending on the conditions described at
* {@link #isSelected(String, String, boolean)}.
*
*/
public boolean isSelected(@CheckForNull String value, boolean isFieldOptionSelected) {
return isSelected(value, isFieldOptionSelected, false);
}
/**
* A shortcut of {@link #isSelected(String, String, boolean, boolean)}, with name is
* taken from {@code name} property of the config.
*
* @param value
* The value of the field option to compare against
* @param isFieldOptionSelected
* {@code true} if the field option is selected; {@code false}
* otherwise.
* @param forceIgnoreFreshness
* {@code true} to force to be {@link NameNotFoundMode#IGNORE_FRESHNESS};
* {@code false} otherwise.
*
* @return Whether the given value is selected or not, or the given
* isFieldOptionSelected, depending on the conditions described at
* {@link #isSelected(String, String, boolean)}.
*/
public boolean isSelected(@CheckForNull String value, boolean isFieldOptionSelected, boolean forceIgnoreFreshness) {
return isSelected(config.get("name", String.class), value, isFieldOptionSelected, forceIgnoreFreshness);
}
/**
* An overload of {@link #isSelected(String, String, boolean, boolean)} where
* {@code forceIgnoreFreshness} is {@code false}.
*
* @param name
* The name of the field
* @param value
* The value of the field option to compare against
* @param isFieldOptionSelected
* {@code true} if the field option is selected; {@code false}
* otherwise.
*
* @return Whether the given value is selected or not, or the given
* isFieldOptionSelected, depending on the conditions described above.
*/
public boolean isSelected(@CheckForNull String name, @CheckForNull String value, boolean isFieldOptionSelected) {
return isSelected(name, value, isFieldOptionSelected, false);
}
/**
* Returns {@code true} if the given value of the field option is selected;
* {@code false} otherwise.
*
*
* In the {@link NameNotFoundMode#CHECK_FRESHNESS} mode, if the given name is
* not found and the FormData is fresh, then the given isFieldOptionSelected is
* returned, {@code false} otherwise.
*
*
*
* In the {@link NameNotFoundMode#IGNORE_FRESHNESS} mode, if the given name is
* not found, then the given isFieldOptionSelected is returned.
*
*
*
* If the FormData is {@code null} or {@code ignoreData} property of the config
* is {@code true}, the given isFieldOptionSelected is returned.
*
*
* @param name
* The name of the field
* @param value
* The value of the field option to compare against
* @param isFieldOptionSelected
* {@code true} if the field option is selected; {@code false}
* otherwise.
* @param forceIgnoreFreshness
* {@code true} to force to be {@link NameNotFoundMode#IGNORE_FRESHNESS};
* {@code false} otherwise.
*
* @return Whether the given value is selected or not, or the given
* isFieldOptionSelected, depending on the conditions described above.
*/
public boolean isSelected(@CheckForNull String name, @CheckForNull String value, boolean isFieldOptionSelected, boolean forceIgnoreFreshness) {
if (formData == null || config.get("ignoreData", false)) {
return isFieldOptionSelected;
}
if (name != null) {
return formData.isSelected(name, value, isFieldOptionSelected, forceIgnoreFreshness);
} else {
return isFieldOptionSelected;
}
}
/**
* A shortcut to {@link #getContentValue(String, Object)}, with empty string as
* default value.
*
* @param name
* The name of the field
* @return The value converted to String, or an empty String if non existing or
* can't be converted.
*/
@Nonnull
public String getContentValue(@CheckForNull String name) {
return getContentValue(name, "");
}
/**
* Returns value from the given name, converted to the type of given default
* value.
*
* @param name
* The name of the field
* @param defaultValue
* The default value
* @param
* The type of the value
* @return The value converted to type T, or the default value if non existing
* or can't be converted.
*/
@Nonnull
public T getContentValue(@CheckForNull String name, @Nonnull T defaultValue) {
if (formData == null || name == null) {
return defaultValue;
}
return formData.getValueMap().get(name, defaultValue);
}
/**
* Returns value from the given name, converted to the given type.
*
* @param name
* The name of the value to return
* @param type
* The return type
* @param
* The type of the value
* @return The named value converted to type T, or {@code null} if non existing
* or can't be converted.
*/
@CheckForNull
public T getContentValue(@CheckForNull String name, @Nonnull Class type) {
if (formData == null || name == null) {
return null;
}
return formData.getValueMap().get(name, type);
}
}
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