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/*
* Copyright (c) 2007-2009, Dennis M. Sosnoski. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of
* JiBX nor the names of its contributors may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jibx.custom.classes;
import java.lang.reflect.Modifier;
import org.apache.bcel.generic.Type;
import org.jibx.runtime.IUnmarshallingContext;
import org.jibx.runtime.JiBXException;
import org.jibx.runtime.Utility;
import org.jibx.util.IClass;
import org.jibx.util.IClassItem;
import org.jibx.util.IClassLocator;
import org.jibx.util.StringArray;
/**
* Member field or property customization information.
*
* @author Dennis M. Sosnoski
*/
public class ValueCustom extends SharedValueBase
{
/** Enumeration of allowed attribute names */
public static final StringArray s_allowedAttributes =
new StringArray(new String[] { "attribute", "element", "field", "get-method", "property-name", "set-method" },
SharedValueBase.s_allowedAttributes);
//
// Internal instance data
/** Private property flag. */
private boolean m_private;
//
// Values handled by binding
/** 'field' attribute value (null if none). */
private String m_fieldName;
/** 'get-method' attribute value (null if none). */
private String m_getName;
/** 'set-method' attribute value (null if none). */
private String m_setName;
/** 'property-name' attribute value (null if none). */
private String m_propertyName;
/**
* Constructor.
*
* @param parent base
*/
protected ValueCustom(SharedNestingBase parent) {
super(parent);
}
/**
* Constructor with name known.
*
* @param parent base
* @param name Name
*/
protected ValueCustom(SharedNestingBase parent, String name) {
super(parent, name);
}
/**
* Get the member name for a property from the read method name. This means stripping off the leading "get" or "is"
* prefix, then case-converting the result.
*
* @param name Name
* @return member name
* @see #convertMemberNameCase(String)
* @see #memberNameFromSetMethod(String)
* @see #memberNameFromField(String, String[], String[])
*/
public static String memberNameFromGetMethod(String name) {
if (name.startsWith("get")) {
name = name.substring(3);
} else if (name.startsWith("is")) {
name = name.substring(2);
}
return convertMemberNameCase(name);
}
/**
* Get the member name for a property from the write method name. This means stripping off the leading "set" prefix,
* then case-converting the result.
*
* @param name Name
* @return member name
* @see #convertMemberNameCase(String)
* @see #memberNameFromGetMethod(String)
* @see #memberNameFromField(String, String[], String[])
*/
public static String memberNameFromSetMethod(String name) {
if (name.startsWith("set")) {
name = name.substring(3);
}
return convertMemberNameCase(name);
}
/**
* Get the member name for a field from the field name. This means stripping off and leading field name prefix
* and/or trailing suffix, then case-converting the result.
*
* @param name Name
* @param prefs field prefixes to be stripped
* @param suffs field suffixes to be stripped
* @return member name
* @see #convertMemberNameCase(String)
* @see #memberNameFromGetMethod(String)
* @see #memberNameFromSetMethod(String)
*/
public static String memberNameFromField(String name, String[] prefs, String[] suffs) {
if (prefs != null) {
for (int i = 0; i < prefs.length; i++) {
if (name.startsWith(prefs[i])) {
name = name.substring(prefs[i].length());
break;
}
}
}
if (suffs != null) {
for (int i = 0; i < suffs.length; i++) {
if (name.endsWith(prefs[i])) {
name = name.substring(name.length() - prefs[i].length());
break;
}
}
}
return convertMemberNameCase(name);
}
/**
* Set element name method. This is intended for use during unmarshalling, so it needs to allow for being called
* with a null value. TODO: add validation
*
* @param text (null if attribute not present)
* @param ictx
*/
private void setElement(String text, IUnmarshallingContext ictx) {
if (text != null) {
setXmlName(text);
setElementForced();
setStyle(new Integer(NestingBase.ELEMENT_VALUE_STYLE));
}
}
/**
* Set attribute name method. This is intended for use during unmarshalling, so it needs to allow for being called
* with a null value. TODO: add validation
*
* @param text (null if attribute not present)
* @param ictx
*/
private void setAttribute(String text, IUnmarshallingContext ictx) {
if (text != null) {
setXmlName(text);
setStyle(new Integer(NestingBase.ATTRIBUTE_VALUE_STYLE));
}
}
/**
* Check if member represents a property.
*
* @return true
*/
public boolean isProperty() {
return true;
}
/**
* Check if a private member.
*
* @return true if private, false if not
*/
public boolean isPrivate() {
return m_private;
}
/**
* Get 'field' attribute value.
*
* @return 'field' value (null if none)
*/
public String getFieldName() {
return m_fieldName;
}
/**
* Get 'get-method' attribute name.
*
* @return 'get' attribute name (null if none)
*/
public String getGetName() {
return m_getName;
}
/**
* Get 'set-method' attribute name.
*
* @return 'set-method' attribute name (null if none)
*/
public String getSetName() {
return m_setName;
}
/**
* Get 'property-name' attribute value.
*
* @return property name (null if none)
*/
public String getPropertyName() {
return m_propertyName;
}
/**
* Make sure all attributes are defined.
*
* @param uctx unmarshalling context
*/
protected void preSet(IUnmarshallingContext uctx) {
validateAttributes(uctx, s_allowedAttributes);
}
/**
* Post-set method that handles checking attribute combinations and sets the actual member name.
*
* @throws JiBXException error
*/
protected void postSet() throws JiBXException {
if (m_fieldName != null) {
if (m_getName != null || m_setName != null || m_propertyName != null) {
throw new JiBXException("'get-name' or 'set-name' or 'property-name' attributes cannot be used together with 'field' attribute on element");
}
ClassCustom clas = (ClassCustom)getParent();
setBaseName(memberNameFromField(m_fieldName, clas.getStripPrefixes(), clas.getStripSuffixes()));
} else if (m_getName == null && m_setName == null && m_propertyName == null) {
throw new JiBXException("Either 'field', 'get-name', 'set-name', or 'property-name' attribute is required on element");
} else {
if (m_setName == null) {
if (m_getName == null) {
setBaseName(m_propertyName);
} else {
setBaseName(memberNameFromGetMethod(m_getName));
}
} else {
setBaseName(memberNameFromSetMethod(m_setName));
}
}
}
/**
* Complete customization information based on either field or access method information.
*
* @param field (null if none)
* @param gmeth read access method (null if none)
* @param smeth write access method (null if none)
* @param icl class locator
* @param req required member flag (null if unknown)
* @param style representation style (null if unspecified)
*/
/* package */void fillDetails(IClassItem field, IClassItem gmeth, IClassItem smeth, IClassLocator icl, Boolean req,
Integer style) {
// fill in missing details for either field or property
String type = null;
if (field == null) {
if (gmeth != null) {
if (m_getName == null) {
m_getName = gmeth.getName();
}
type = gmeth.getTypeName();
}
if (smeth != null) {
if (m_setName == null) {
m_setName = smeth.getName();
}
if (type == null) {
type = smeth.getArgumentType(0);
}
}
m_private = (gmeth == null || Modifier.isPrivate(gmeth.getAccessFlags())) &&
(smeth == null || Modifier.isPrivate(smeth.getAccessFlags()));
} else {
if (m_fieldName == null) {
m_fieldName = field.getName();
}
m_private = Modifier.isPrivate(field.getAccessFlags());
type = field.getTypeName();
}
// fill in the details of type information
IClass info = icl.getClassInfo(type);
fillType(info, req, style);
if (isCollection()) {
if (getItemType() == null) {
String tname = getWorkingType();
if (tname.endsWith("[]")) {
// set item type directly from array type
setItemType(tname.substring(0, tname.length() - 2));
} else {
// find generic signature for type
String sig;
if (field != null) {
sig = field.getGenericsSignature();
} else {
if (gmeth == null) {
sig = smeth.getGenericsSignature();
} else {
sig = gmeth.getGenericsSignature();
}
}
// find type based on field or method signature
if (sig != null) {
int start = sig.indexOf('<');
int end = sig.lastIndexOf('>');
if (start > 0 && end > 0 && start < end) {
String tsig = sig.substring(start + 1, end);
if (tsig.indexOf('<') >= 0 || tsig.indexOf('+') >= 0) {
System.out.println("Warning: generic signature '" + tsig + "' ignored");
} else {
setItemType(Type.getType(tsig).toString());
}
}
}
}
}
if (getItemType() == null) {
setItemType("java.lang.Object");
}
// derive the item name if not already set
if (getItemName() == null) {
setItemName(deriveItemName(getXmlName(), getItemType(), getParent().getNameStyle()));
}
}
}
/**
* Complete customization information based on whatever field or access method information has been set.
*
* @param info containing class information
* @param req required member flag (null if unknown)
* @param style representation style (null if unspecified)
*/
/* package */void fillDetails(IClass info, Boolean req, Integer style) {
IClassItem field = null;
if (m_fieldName != null) {
field = info.getField(m_fieldName);
if (field == null) {
throw new IllegalArgumentException("Field " + m_fieldName + " not found in class " + info.getName());
}
}
IClassItem gmeth = null;
if (m_getName != null) {
gmeth = info.getBestMethod(m_getName, null, Utility.EMPTY_STRING_ARRAY);
if (gmeth == null) {
throw new IllegalArgumentException("get method " + m_getName + " not found in class " + info.getName());
}
}
IClassItem smeth = null;
if (m_setName != null) {
smeth = info.getBestMethod(m_setName, "void", null);
if (smeth == null) {
throw new IllegalArgumentException("gset method " + m_setName + " not found in class " + info.getName());
}
}
fillDetails(field, gmeth, smeth, info.getLocator(), req, style);
}
/**
* Factory method for creating instances during unmarshalling.
*
* @param ictx
* @return instance
*/
private static ValueCustom factory(IUnmarshallingContext ictx) {
return new ValueCustom(((ClassCustom)getContainingObject(ictx)));
}
}
