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package com.sun.enterprise.deployment;
import java.util.*;
import java.lang.reflect.*;
import java.util.logging.*;
import com.sun.logging.*;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.enterprise.util.TypeUtil;
import com.sun.enterprise.deployment.util.EjbVisitor;
import com.sun.enterprise.deployment.util.LogDomains;
import com.sun.enterprise.util.BeanMethodCalculator;
/**
* This class contains information about EJB1.1 and EJB2.0 CMP EntityBeans.
* @author Sanjeev Krishnan
*/
public class EjbCMPEntityDescriptor extends EjbEntityDescriptor {
private static final String FIELD_ACCESS_METHOD_PREFIX = "get"; // NOI18N
// Enum types to be returned from getVersionNumber().
public static final int UNDEFINED = -1;
public static final int CMP_1_1 = 1;
public static final int CMP_2_x = 2;
private int cmpVersion = UNDEFINED;
private PersistenceDescriptor pers;
private String abstractSchemaName=null;
private FieldDescriptor primaryKeyFieldDesc;
private String stateImplClassName=null;
private String ejbImplementationImplClassName=null;
private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(EjbCMPEntityDescriptor.class);
static Logger _logger = LogDomains.getLogger(LogDomains.DPL_LOGGER);
public EjbCMPEntityDescriptor() {
this.setPersistenceType(CONTAINER_PERSISTENCE);
}
/**
* The copy constructor.
*/
public EjbCMPEntityDescriptor(EjbDescriptor other) {
super(other);
this.setPersistenceType(CONTAINER_PERSISTENCE);
if ( other instanceof EjbCMPEntityDescriptor ) {
EjbCMPEntityDescriptor entity = (EjbCMPEntityDescriptor)other;
this.pers = entity.pers;
this.cmpVersion = entity.cmpVersion;
this.abstractSchemaName = entity.abstractSchemaName;
}
}
/**
* Sets the State class implementation classname.
*/
public void setStateImplClassName(String name) {
this.stateImplClassName = name;
}
/**
* Returns the classname of the State class impl.
*/
public String getStateImplClassName() {
return this.stateImplClassName;
}
public Vector getFields() {
Vector fields = new Vector();
if( isEJB20() ) {
// All cmp "fields" are abstract, so we can't construct
// java.lang.reflect.Field elements from them. Use
// getFieldDescriptors() instead.
} else {
fields = super.getFields();
}
return fields;
}
public Vector getFieldDescriptors() {
Vector fieldDescriptors = new Vector();
if( isEJB20() ) {
try {
ClassLoader cl = getEjbBundleDescriptor().getClassLoader();
fieldDescriptors = BeanMethodCalculator.getPossibleCmpCmrFields
(cl, this.getEjbClassName());
} catch(Throwable t) {
String errorMsg = localStrings.getLocalString
("enterprise.deployment.errorloadingejbclass",
"error loading the ejb class {0} in getFields" +
" on EjbDescriptor\n {1}",
new Object[] {this.getEjbClassName(), t.toString() });
_logger.log(Level.FINE,errorMsg);
}
} else {
fieldDescriptors = super.getFieldDescriptors();
}
return fieldDescriptors;
}
/**
* Returns CMP version as an enum type.
*/
public int getCMPVersion() {
if (cmpVersion == UNDEFINED) {
if (getEjbBundleDescriptor()!=null) {
String bundleVersion = getEjbBundleDescriptor().getSpecVersion();
if (bundleVersion.startsWith("1.")) {
cmpVersion = CMP_1_1;
} else {
cmpVersion = CMP_2_x;
}
} else {
// we cannot get the version from the bundle, set it to default...
cmpVersion = CMP_2_x;
}
}
return cmpVersion;
}
/**
* Set the CMP version
*/
public void setCMPVersion(int version) {
if (version==CMP_1_1 || version == CMP_2_x) {
cmpVersion = version;
} else {
throw new IllegalArgumentException(localStrings.getLocalString("enterprise.deployment.invalidcmpversion",
"Invalid CMP version: {0}.",
new Object[]{Integer.valueOf(version)})); // NOI18N
}
}
/**
* return true if this is an EJB2.0 CMP Entitybean
* DEPRECATED
*/
public boolean isEJB20() {
return getCMPVersion()==CMP_2_x;
}
public void setEjbBundleDescriptor(EjbBundleDescriptor bundleDescriptor) {
super.setEjbBundleDescriptor(bundleDescriptor);
}
public Vector getPossibleTransactionAttributes() {
Vector txAttributes = null;
if( isEJB20() ) {
txAttributes = new Vector();
txAttributes.add(new ContainerTransaction
(ContainerTransaction.REQUIRED, ""));
txAttributes.add(new ContainerTransaction
(ContainerTransaction.REQUIRES_NEW, ""));
txAttributes.add(new ContainerTransaction
(ContainerTransaction.MANDATORY, ""));
if( isTimedObject() ) {
txAttributes.add(new ContainerTransaction
(ContainerTransaction.NOT_SUPPORTED, ""));
}
} else {
txAttributes = super.getPossibleTransactionAttributes();
}
return txAttributes;
}
public void setPersistenceDescriptor(PersistenceDescriptor pd)
{
this.pers = pd;
pd.setParentDescriptor(this);
}
public PersistenceDescriptor getPersistenceDescriptor()
{
if (pers==null) {
pers = new PersistenceDescriptor();
this.setPersistenceDescriptor(pers);
}
return pers;
}
private void invalidatePersistenceInfo() {
if( pers != null ) {
pers.invalidate();
}
}
public void setPrimaryKeyFieldDesc(FieldDescriptor pkf)
{
this.primaryKeyFieldDesc = pkf;
invalidatePersistenceInfo();
}
public FieldDescriptor getPrimaryKeyFieldDesc()
{
return primaryKeyFieldDesc;
}
public void setAbstractSchemaName(String abstractSchemaName)
{
this.abstractSchemaName = abstractSchemaName;
}
public String getAbstractSchemaName()
{
return abstractSchemaName;
}
/**
* set the generated implementation class for a CMP 2.0 Ejb object
* @param className the generated implementation
*/
public void setEjbImplementationImplClassName(String className) {
ejbImplementationImplClassName = className;
}
/**
* @return the generated implementation class
*/
public String getEjbImplementationImplClassName() {
return ejbImplementationImplClassName;
}
public static Vector getPossibleCmpCmrFields(ClassLoader cl,
String className)
throws Exception {
Vector fieldDescriptors = new Vector();
Class theClass = cl.loadClass(className);
// Start with all *public* methods
Method[] methods = theClass.getMethods();
// Find all accessors that could be cmp fields. This list
// will contain all cmr field accessors as well, since there
// is no good way to distinguish between the two purely based
// on method signature.
for(int mIndex = 0; mIndex < methods.length; mIndex++) {
Method next = methods[mIndex];
String nextName = next.getName();
int nextModifiers = next.getModifiers();
if( Modifier.isAbstract(nextModifiers) ) {
if( nextName.startsWith(FIELD_ACCESS_METHOD_PREFIX) &&
nextName.length() > 3 ) {
String field =
nextName.substring(3,4).toLowerCase() +
nextName.substring(4);
fieldDescriptors.add(new FieldDescriptor(field));
}
}
}
return fieldDescriptors;
}
/**
* Return my formatted string representation.
*/
public void print(StringBuffer toStringBuffer) {
super.print(toStringBuffer);
toStringBuffer.append("\n cmpVersion ").append(cmpVersion).
append("\n primKeyField ");
if(getPrimaryKeyFieldDesc() != null)
((Descriptor)getPrimaryKeyFieldDesc()).print(toStringBuffer);
if(pers != null)
((Descriptor)pers).print(toStringBuffer);
}
/**
* visit the descriptor and all sub descriptors with a DOL visitor implementation
*
* @param a visitor to traverse the descriptors
*/
public void visit(EjbVisitor aVisitor) {
super.visit(aVisitor);
PersistenceDescriptor persistenceDesc = getPersistenceDescriptor();
for (Iterator e=persistenceDesc.getCMPFields().iterator();e.hasNext();) {
FieldDescriptor fd = (FieldDescriptor) e.next();
aVisitor.accept(fd);
}
for (Iterator e=persistenceDesc.getQueriedMethods().iterator();e.hasNext();) {
Object method = e.next();
if (method instanceof MethodDescriptor) {
QueryDescriptor qd = persistenceDesc.getQueryFor((MethodDescriptor) method);
aVisitor.accept((MethodDescriptor) method, qd);
}
}
}
}
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