/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
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*/
package com.sun.jdo.api.persistence.enhancer.generator;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import com.sun.jdo.api.persistence.enhancer.meta.ExtendedJDOMetaData;
import com.sun.jdo.api.persistence.enhancer.util.Assertion;
import com.sun.jdo.spi.persistence.utility.JavaTypeHelper;
import com.sun.jdo.spi.persistence.utility.generator.JavaClassWriterHelper;
/**
*
*/
final class ImplHelper extends Assertion
{
// string constants
static final String[] COMMENT_ENHANCER_ADDED
= null; //{ "added by enhancer" };
static final String[] COMMENT_NOT_ENHANCER_ADDED
= null; //{ "not added by enhancer" };
static final String CLASSNAME_JDO_PERSISTENCE_CAPABLE
= "com.sun.jdo.spi.persistence.support.sqlstore.PersistenceCapable";
static final String CLASSNAME_JDO_PERSISTENCE_MANAGER
= "com.sun.jdo.api.persistence.support.PersistenceManager";
static final String CLASSNAME_JDO_STATE_MANAGER
= "com.sun.jdo.spi.persistence.support.sqlstore.StateManager";
static final String CLASSNAME_JDO_SCO
= "com.sun.jdo.spi.persistence.support.sqlstore.SCO";
static final String CLASSNAME_JDO_FATAL_EXCEPTION
= "com.sun.jdo.api.persistence.support.JDOFatalException";
static final String FIELDNAME_JDO_FLAGS
= "jdoFlags";
static final String FIELDNAME_JDO_STATE_MANAGER
= "jdoStateManager";
static final String FIELDNAME_JDO_INHERITED_FIELD_COUNT
= "jdoInheritedFieldCount";
static final String FIELDNAME_JDO_FIELD_NAMES
= "jdoFieldNames";
static final String FIELDNAME_JDO_FIELD_TYPES
= "jdoFieldTypes";
static final String FIELDNAME_JDO_FIELD_FLAGS
= "jdoFieldFlags";
static final String METHODNAME_JDO_NEW_INSTANCE
= "jdoNewInstance";
static final String METHODNAME_JDO_SET_FIELD
= "jdoSetField";
static final String METHODNAME_JDO_GET_FIELD
= "jdoGetField";
static final String METHODNAME_JDO_GET_STATE_MANAGER
= "jdoGetStateManager";
static final String METHODNAME_JDO_SET_STATE_MANAGER
= "jdoSetStateManager";
static final String METHODNAME_JDO_GET_FLAGS
= "jdoGetFlags";
static final String METHODNAME_JDO_SET_FLAGS
= "jdoSetFlags";
static final String METHODNAME_JDO_GET_PERSISTENCE_MANAGER
= "jdoGetPersistenceManager";
static final String METHODNAME_JDO_CLEAR
= "jdoClear";
static final String METHODNAME_JDO_MAKE_DIRTY
= "jdoMakeDirty";
static final String METHODNAME_JDO_GET_OBJECT_ID
= "jdoGetObjectId";
static final String METHODNAME_JDO_IS_PERSISTENT
= "jdoIsPersistent";
static final String METHODNAME_JDO_IS_TRANSACTIONAL
= "jdoIsTransactional";
static final String METHODNAME_JDO_IS_NEW
= "jdoIsNew";
static final String METHODNAME_JDO_IS_DIRTY
= "jdoIsDirty";
static final String METHODNAME_JDO_IS_DELETED
= "jdoIsDeleted";
static private final HashMap typeNameConversion = new HashMap();
static
{
typeNameConversion.put(int.class.getName(), "Int");
typeNameConversion.put(long.class.getName(), "Long");
typeNameConversion.put(byte.class.getName(), "Byte");
typeNameConversion.put(char.class.getName(), "Char");
typeNameConversion.put(boolean.class.getName(), "Boolean");
typeNameConversion.put(short.class.getName(), "Short");
typeNameConversion.put(float.class.getName(), "Float");
typeNameConversion.put(double.class.getName(), "Double");
typeNameConversion.put("String", "String");
}
static private boolean isPrimitiveClass(String className)
{
affirm(!className.equals("void")); // NOI18N
return JavaTypeHelper.getWrapperName(className) != null;
}
static private String getConvertedTypeName(String fieldType)
{
final String name = (String)typeNameConversion.get(fieldType);
return (name != null ? name : JavaClassWriterHelper.Object_);
}
static private String getMethodNameGetField(String fieldType)
{
return JavaClassWriterHelper.get_ +
getConvertedTypeName(fieldType) + "Field";
}
static private String getMethodNameSetField(String fieldType)
{
return JavaClassWriterHelper.set_ +
getConvertedTypeName(fieldType) + "Field";
}
// Create bodies of methods.
static String[] getJDOManagedFieldCountImpl(int fieldcount)
{
return new String[] {
FIELDNAME_JDO_INHERITED_FIELD_COUNT + " + " + fieldcount + JavaClassWriterHelper.delim_
};
}
static String[] getDefaultConstructorImpl()
{
return JavaClassWriterHelper.super_;
}
static String[] getCloneImpl(String className)
{
className = normalizeClassName(className);
String[] bodies = new String[4];
int i = 0;
bodies[i++] = (new StringBuffer(className)).append(" clone = (")
.append(className).append(")super.clone();").toString();
bodies[i++] = "clone.jdoFlags = (byte)0;";
bodies[i++] = "clone.jdoStateManager = null;";
bodies[i++] = "return clone;";
return bodies;
}
static String[] getJDOConstructorSMImpl(String statemanager)
{
String[] bodies = new String[2];
int i = 0;
bodies[i++] = FIELDNAME_JDO_FLAGS + " = (byte)1; // == LOAD_REQUIRED";
bodies[i++] = "this." + FIELDNAME_JDO_STATE_MANAGER
+ " = " + statemanager + JavaClassWriterHelper.delim_;
return bodies;
}
static String[] getJDONewInstanceImpl(String className,
String statemanager)
{
className = getClassName(className);
return new String[] { (new StringBuffer("return new "))
.append(className).append("(").append(statemanager)
.append(");").toString() };
}
static String[] getFieldDirectReadImpl(String fieldName,
String fieldType,
int fieldNumber)
{
fieldType = normalizeClassName(fieldType);
return new String[] {
"// annotation: grant direct read access",
"return " + fieldName + JavaClassWriterHelper.delim_
};
}
static String[] getFieldMediateReadImpl(String fieldName,
String fieldType,
int fieldNumber)
{
fieldType = normalizeClassName(fieldType);
String[] bodies = new String[6];
int i = 0;
bodies[i++] = "// annotation: mediate read access";
bodies[i++] = (new StringBuffer("final "))
.append(CLASSNAME_JDO_STATE_MANAGER)
.append(" stateManager = this.")
.append(FIELDNAME_JDO_STATE_MANAGER)
.append(JavaClassWriterHelper.delim_).toString();
bodies[i++] = "if (stateManager != null) {";
bodies[i++] = (new StringBuffer(" "))
.append("stateManager.prepareGetField(").append(fieldNumber)
.append(");").toString();
bodies[i++] = "}";
bodies[i++] = "return " + fieldName + JavaClassWriterHelper.delim_;
return bodies;
}
static String[] getFieldCheckReadImpl(String fieldName,
String fieldType,
int fieldNumber)
{
String[] bodies = new String[5];
int i = 0;
fieldType = normalizeClassName(fieldType);
bodies[i++] = "// annotation: check read access";
bodies[i++] = (new StringBuffer("if ("))
.append(FIELDNAME_JDO_FLAGS).append(" > 0) {").toString();
bodies[i++] = " " + FIELDNAME_JDO_STATE_MANAGER + ".loadForRead();";
bodies[i++] = "}";
bodies[i++] = "return " + fieldName + JavaClassWriterHelper.delim_;
return bodies;
}
static String[] getFieldDirectWriteImpl(String fieldName,
String fieldType,
int fieldNumber,
String newvalue)
{
fieldType = normalizeClassName(fieldType);
return new String[] {
"// annotation: grant direct write access",
(new StringBuffer("this."))
.append(fieldName).append(" = ").append(newvalue)
.append(JavaClassWriterHelper.delim_).toString()
};
}
static String[] getFieldMediateWriteImpl(String fieldName,
String fieldType,
int fieldNumber,
String newvalue)
{
String[] bodies = new String[7];
int i = 0;
fieldType = normalizeClassName(fieldType);
bodies[i++] = "// annotation: mediate write access";
bodies[i++] = (new StringBuffer("final "))
.append(CLASSNAME_JDO_STATE_MANAGER)
.append(" stateManager = this.")
.append(FIELDNAME_JDO_STATE_MANAGER)
.append(JavaClassWriterHelper.delim_).toString();
bodies[i++] = "if (stateManager == null) {";
bodies[i++] = (new StringBuffer(" this."))
.append(fieldName).append(" = ")
.append(newvalue).append(JavaClassWriterHelper.delim_)
.toString();
bodies[i++] = "} else {";
bodies[i++] = (new StringBuffer(" stateManager."))
.append(getMethodNameSetField(fieldType)).append('(')
.append(fieldNumber).append(", ").append(newvalue)
.append(");").toString();
bodies[i++] = "}";
return bodies;
}
static String[] getFieldCheckWriteImpl(String fieldName,
String fieldType,
int fieldNumber,
String newvalue)
{
String[] bodies = new String[5];
int i = 0;
fieldType = normalizeClassName(fieldType);
bodies[i++] = "// annotation: check write access";
bodies[i++] = "if (" + FIELDNAME_JDO_FLAGS + " != 0) {";
bodies[i++] = " " + FIELDNAME_JDO_STATE_MANAGER + ".loadForUpdate();";
bodies[i++] = "}";
bodies[i++] = (new StringBuffer("this.")).append(fieldName)
.append(" = ").append(newvalue)
.append(JavaClassWriterHelper.delim_).toString();
return bodies;
}
static String[] getJDOClearImpl(String className, ExtendedJDOMetaData meta,
String[] fieldNames, String[] fieldTypes) {
final List impl = new ArrayList(20);
for (int i = 0; i < fieldNames.length; i++) {
String fieldTypeClassPath = fieldTypes[i];
String fieldType = normalizeClassName(fieldTypes[i]);
String fieldName = fieldNames[i];
if (meta.isKeyField(className, fieldName)) {
continue;
}
String primClass = JavaTypeHelper.getWrapperName(fieldType);
if (meta.isMutableSecondClassObjectType(fieldTypeClassPath)) {
impl.add((new StringBuffer("if ("))
.append(fieldName).append(" instanceof ")
.append(CLASSNAME_JDO_SCO).append(") {")
.toString());
impl.add((new StringBuffer(" (("))
.append(CLASSNAME_JDO_SCO).append(")")
.append(fieldName).append(").unsetOwner();")
.toString());
impl.add("}");
impl.add(fieldName + " = null;");
} else if (primClass == null) {
impl.add(fieldName + " = null;");
} else if (JavaClassWriterHelper.boolean_.equals(fieldType)) {
impl.add(fieldName + " = false;");
} else {
impl.add(fieldName + " = 0;");
}
}
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
static String[] getJDOGetFieldImpl(String fieldNumber,
String[] fieldNames,
String[] fieldTypes)
{
final List impl = new ArrayList(20);
impl.add("switch (" + fieldNumber + ") {");
for (int i = 0; i < fieldNames.length; i++) {
String fieldType = normalizeClassName(fieldTypes[i]);
impl.add("case " + i + ':');
String primClass = JavaTypeHelper.getWrapperName(fieldType);
if (primClass == null) {
impl.add(" return " + fieldNames[i] + ";");
} else {
impl.add((new StringBuffer(" return new "))
.append(primClass).append("(")
.append(fieldNames[i]).append(");").toString());
}
}
impl.add("default:");
impl.add(" throw new " + CLASSNAME_JDO_FATAL_EXCEPTION + "();");
impl.add("}");
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
static String[] getJDOSetFieldImpl(String fieldNumber, String objName,
String[] fieldNames,
String[] fieldTypes)
{
final List impl = new ArrayList(20);
impl.add("switch (" + fieldNumber + ") {");
for (int i = 0; i < fieldNames.length; i++) {
String fieldType = normalizeClassName(fieldTypes[i]);
impl.add("case " + i + ':');
String primClass = JavaTypeHelper.getWrapperName(fieldType);
if (primClass == null) {
impl.add((new StringBuffer(" this."))
.append(fieldNames[i])
.append(" = (").append(fieldType)
.append(")").append(objName)
.append(";").toString());
} else {
impl.add((new StringBuffer(" this."))
.append(fieldNames[i])
.append(" = ((").append(primClass)
.append(")").append(objName).append(").")
.append(((String)typeNameConversion.get(fieldType)).toLowerCase())
.append("Value();").toString());
}
impl.add(" return;");
}
impl.add("default:");
impl.add(" throw new " + CLASSNAME_JDO_FATAL_EXCEPTION + "();");
impl.add("}");
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
// returnType = null means void
private static String[] getJDOStateManagerDelegationImpl(
String delegation, String returnType) {
final List impl = new ArrayList(7);
impl.add((new StringBuffer("final "))
.append(CLASSNAME_JDO_STATE_MANAGER)
.append(" stateManager = this.")
.append(FIELDNAME_JDO_STATE_MANAGER)
.append(JavaClassWriterHelper.delim_)
.toString());
impl.add("if (stateManager != null) {");
StringBuffer buf = new StringBuffer(" ");
if (returnType != null) {
buf.append("return ");
}
impl.add(((buf.append("stateManager."))
.append(delegation).append(";")).toString());
impl.add("}");
if (returnType != null) {
impl.add((new StringBuffer("return ")).append(returnType)
.append(";").toString());
};
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
static String[] getJDOStateManagerVoidDelegationImpl(String delegation)
{
return getJDOStateManagerDelegationImpl(delegation, null);
}
static String[] getJDOStateManagerObjectDelegationImpl(String delegation)
{
return getJDOStateManagerDelegationImpl(delegation,
JavaClassWriterHelper.null_);
}
static String[] getJDOStateManagerBooleanDelegationImpl(String delegation)
{
return getJDOStateManagerDelegationImpl(delegation,
JavaClassWriterHelper.false_);
}
static String[] getOidHashCodeImpl(String[] pknames,
String[] pktypes,
boolean isRoot)
{
final List impl = new ArrayList(3);
if (isRoot) {
impl.add("int hash = 0;");
} else {
impl.add("int hash = super.hashCode();");
}
for (int i = 0; i < pknames.length; i++) {
if (isPrimitiveClass(pktypes[i])) {
if (pktypes[i].equals("boolean")) {
impl.add("hash += (" + pknames[i] + " ? 1 : 0);");
} else {
impl.add("hash += (int)" + pknames[i] +
JavaClassWriterHelper.delim_);
}
} else {
impl.add("hash += (this." + pknames[i]
+ " != null ? this." + pknames[i]
+ ".hashCode() : 0);");
}
}
impl.add("return hash;");
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
static String[] getOidEqualsImpl(String oidClassName,
String[] pknames,
String[] pktypes,
String pk,
boolean isRoot)
{
final List impl = new ArrayList(31);
if (isRoot) {
impl.add("if (" + pk + " == null || !this.getClass().equals("
+ pk + ".getClass())) {");
} else {
impl.add("if (!super.equals(" + pk + ")) {");
}
impl.add(" return false;");
impl.add("}");
oidClassName = getClassName(oidClassName);
impl.add(oidClassName + " oid = (" + oidClassName + ")" + pk +
JavaClassWriterHelper.delim_);
for (int i = 0; i < pknames.length; i++) {
if (isPrimitiveClass(pktypes[i])) {
impl.add("if (this." + pknames[i] + " != oid."
+ pknames[i] + ") return false;");
} else {
impl.add("if (this." + pknames[i] + " != oid."
+ pknames[i] + " && (this." + pknames[i]
+ " == null || " + "!this." + pknames[i]
+ ".equals(oid." + pknames[i]
+ "))) return false;");
}
}
impl.add("return true;");
String[] strArr = new String[impl.size()];
return (String[])impl.toArray(strArr);
}
//The following three methods are originated from NameHelper.
/**
* The input parameter can be a classPath with "/" or a valid
* full className with package name.
*/
static String normalizeClassName(String className)
{
if (className == null) {
return null;
}
return className.replace('/', '.').replace('$', '.');
}
/**
* The inner class must be represented by $ in className.
* The input className can be a classPath with "/".
*/
static String getPackageName(String className)
{
if (className == null) {
return null;
}
return JavaTypeHelper.getPackageName(className.replace('/', '.'));
}
/**
* The input parameter can be a classPath with "/" or a valid
* full className with package name.
*/
static String getClassName(String className) {
return JavaTypeHelper.getShortClassName(normalizeClassName(className));
}
}
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