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package oracle.toplink.essentials.internal.ejb.cmp3.base;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.logging.Level;
import java.security.AccessController;
import java.security.PrivilegedAction;
import oracle.toplink.essentials.config.*;
import oracle.toplink.essentials.internal.localization.ExceptionLocalization;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
import oracle.toplink.essentials.logging.SessionLog;
/**
*
* The class processes some of TopLink properties.
* The class may be used for any properties, but it only makes sense
* to use it in the following two cases:
* 1. There is a set of legal values defined
* either requiring translation (like CacheTypeProp);
* or not (like LoggingLevelProp).
* 2. Property is really a prefix from which the property obtained by
* appending entity or class name (like DescriptorCustomizerProp -
* it corresponds to "toplink.descriptor.customizer." prefix that allows to
* define propereties like "toplink.descriptor.customizer.myPackage.MyClass").
*
* TopLink properties and their values defined in oracle.toplink.essentials.config package.
*
* To add a new property:
* Define a new property in TopLinkProperties;
* Add a class containing property's values if required to config package (like CacheType);
* Alternatively values may be already defined elsewhere (like in LoggingLevelProp).
* Add an inner class to this class extending Prop corresponding to the new property (like CacheTypeProp);
* The first constructor parameter is property name; the second is default value;
* In constructor
* provide 2-dimensional value array in case the values should be translated (like CacheTypeProp);
* in case translation is not required provide a single-dimension array (like LoggingLevelProp).
* In inner class Prop static initializer addProp an instance of the new prop class (like addProp(new CacheTypeProp())).
*
* @see TopLinkProperties
* @see CacheType
* @see TargetDatabase
* @see TargetServer
*
*/
public class PropertiesHandler {
/**
* INTERNAL:
* Gets property value from the map, if none found looks in System properties.
* Use this to get a value for a non-prefixed property.
* Could be used on prefixes (like "oracle.toplink.cache-type.") too,
* but will always return null
* Throws IllegalArgumentException in case the property value is illegal.
*/
public static String getPropertyValue(String name, Map m) {
return Prop.getPropertyValueToApply(name, m, null, true);
}
public static String getPropertyValueLogDebug(String name, Map m, AbstractSession session) {
return Prop.getPropertyValueToApply(name, m, session, true);
}
/**
* INTERNAL:
* Gets property value from the map, if none found looks in System properties.
* Use this to get a value for a prefixed property:
* for "oracle.toplink.cache-type.Employee"
* pass "oracle.toplink.cache-type.", "Employee".
* Throws IllegalArgumentException in case the property value is illegal.
*/
public static String getPrefixedPropertyValue(String prefix, String suffix, Map m) {
return (String)getPrefixValues(prefix, m).get(suffix);
}
/**
* INTERNAL:
* Gets properties' values from the map, if none found looks in System properties.
* In the returned map values keyed by suffixes.
* Use it with prefixes (like "oracle.toplink.cache-type.").
* Could be used on simple properties (not prefixes, too),
* but will always return either an empty map or a map containing a single
* value keyed by an empty String.
* Throws IllegalArgumentException in case the property value is illegal.
*/
public static Map getPrefixValues(String prefix, Map m) {
return Prop.getPrefixValuesToApply(prefix, m, null, true);
}
public static Map getPrefixValuesLogDebug(String prefix, Map m, AbstractSession session) {
return Prop.getPrefixValuesToApply(prefix, m, session, true);
}
/**
* INTERNAL:
* Returns the default property value that should be applied.
* Throws IllegalArgumentException in case the name doesn't correspond
* to any property.
*/
public static String getDefaultPropertyValue(String name) {
return Prop.getDefaultPropertyValueToApply(name, null);
}
public static String getDefaultPropertyValueLogDebug(String name, AbstractSession session) {
return Prop.getDefaultPropertyValueToApply(name, session);
}
/**
* INTERNAL:
* Gets property value from AbstractSession.getProperties() map,
* if none found looks in its parent recursively;
* if none is found looks in System properties.
* Use this to get a value for a non-prefixed property.
* Throws IllegalArgumentException in case the property value is illegal.
*/
public static String getSessionPropertyValue(String name, AbstractSession session) {
String value = null;
while(value == null && session != null) {
AbstractSession parent = session.getParent();
// Don't use System properties as default unless session has no parent.
// Motivation: look in all the recursive parents' properties before looking in System properties.
value = Prop.getPropertyValueToApply(name, session.getProperties(), null, parent == null);
session = parent;
}
return value;
}
public static String getSessionPropertyValueLogDebug(String name, AbstractSession session) {
String value = null;
while(value == null && session != null) {
AbstractSession parent = session.getParent();
// Don't use System properties as default unless session has no parent.
// Motivation: look in all the recursive parents' properties before looking in System properties.
value = Prop.getPropertyValueToApply(name, session.getProperties(), session, parent == null);
session = parent;
}
return value;
}
/**
* INTERNAL:
* Empty String value indicates that the default property value
* should be used.
*/
protected static boolean shouldUseDefault(String value) {
return value != null && value.length() == 0;
}
protected static abstract class Prop {
static HashMap mainMap = new HashMap();
Object[] valueArray;
HashMap valueMap;
String name;
String defaultValue;
String defaultValueToApply;
boolean valueToApplyMayBeNull;
boolean shouldReturnOriginalValueIfValueToApplyNotFound;
static {
addProp(new LoggerTypeProp());
addProp(new LoggingLevelProp());
addProp(new CategoryLoggingLevelProp());
addProp(new TargetDatabaseProp());
addProp(new TargetServerProp());
addProp(new CacheSizeProp());
addProp(new CacheTypeProp());
addProp(new CacheSharedProp());
addProp(new DescriptorCustomizerProp());
addProp(new FlushClearCacheProp());
}
Prop(String name) {
this.name = name;
}
Prop(String name, String defaultValue) {
this(name);
this.defaultValue = defaultValue;
}
static String getPropertyValueFromMap(String name, Map m, boolean useSystemAsDefault) {
String value = (String)m.get(name);
return value == null && useSystemAsDefault ? System.getProperty(name) : value;
}
// Collect all entries corresponding to the prefix name.
// Note that entries from Map m override those from System properties.
static Map getPrefixValuesFromMap(String name, Map m, boolean useSystemAsDefault) {
Map mapOut = new HashMap();
Iterator it;
if(useSystemAsDefault) {
it = (Iterator)AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return System.getProperties().entrySet().iterator();
}
}
);
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String str = (String)entry.getKey();
if(str.startsWith(name)) {
String entityName = str.substring(name.length(), str.length());
mapOut.put(entityName, entry.getValue());
}
}
}
it = m.entrySet().iterator();
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String str = (String)entry.getKey();
if(str.startsWith(name)) {
String entityName = str.substring(name.length(), str.length());
mapOut.put(entityName, entry.getValue());
}
}
return mapOut;
}
static String getPropertyValue(String name, boolean shouldUseDefault, Map m, AbstractSession session, boolean useSystemAsDefault) {
Prop prop = (Prop)mainMap.get(name);
if(prop == null) {
// it's not our property
return null;
}
String value = (String)getPropertyValueFromMap(name, m, useSystemAsDefault);
if(value == null) {
return null;
}
return prop.getValueToApply(value, shouldUseDefault, session);
}
static String getPropertyValueToApply(String name, Map m, AbstractSession session, boolean useSystemAsDefault) {
Prop prop = (Prop)mainMap.get(name);
if(prop == null) {
return null;
}
String value = (String)getPropertyValueFromMap(name, m, useSystemAsDefault);
if(value == null) {
return null;
}
return prop.getValueToApply(value, shouldUseDefault(value), session);
}
static Map getPrefixValuesToApply(String prefix, Map m, AbstractSession session, boolean useSystemAsDefault) {
Prop prop = (Prop)mainMap.get(prefix);
if(prop == null) {
// prefix doesn't correspond to a Prop object - it's not our property.
return new HashMap(0);
}
// mapps suffixes to property values
Map mapIn = (Map)getPrefixValuesFromMap(prefix, m, useSystemAsDefault);
if(mapIn.isEmpty()) {
return mapIn;
}
HashMap mapOut = new HashMap(mapIn.size());
Iterator it = mapIn.entrySet().iterator();
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String suffix = (String)entry.getKey();
String value = (String)entry.getValue();
mapOut.put(suffix, prop.getValueToApply(value, shouldUseDefault(value), suffix, session));
}
// mapps suffixes to valuesToApply
return mapOut;
}
static String getDefaultPropertyValueToApply(String name, AbstractSession session) {
Prop prop = (Prop)mainMap.get(name);
if(prop == null) {
throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-default-for-unknown-property", new Object[]{name}));
}
prop.logDefault(session);
return prop.defaultValueToApply;
}
String getValueToApply(String value, boolean shouldUseDefault, AbstractSession session) {
return getValueToApply(value, shouldUseDefault, null, session);
}
// suffix is used only for properties-prefixes (like CacheType)
String getValueToApply(String value, boolean shouldUseDefault, String suffix, AbstractSession session) {
if(shouldUseDefault) {
logDefault(session, suffix);
return defaultValueToApply;
}
String valueToApply = value;
if(valueMap != null) {
String key = getUpperCaseString(value);
valueToApply = (String)valueMap.get(key);
if(valueToApply == null) {
boolean notFound = true;
if(valueToApplyMayBeNull) {
notFound = !valueMap.containsKey(key);
}
if(notFound) {
if(shouldReturnOriginalValueIfValueToApplyNotFound) {
valueToApply = value;
} else {
String propertyName = name;
if(suffix != null) {
propertyName = propertyName + suffix;
}
throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-illegal-property-value", new Object[]{propertyName, getPrintValue(value)}));
}
}
}
}
String logValue = TopLinkProperties.getOverriddenLogStringForProperty(name);
if (logValue != null){
log(session, logValue, logValue, suffix);
} else {
log(session, value, valueToApply, suffix);
}
return valueToApply;
}
static String getUpperCaseString(String value) {
if(value != null) {
return value.toUpperCase();
} else {
return null;
}
}
static String getPrintValue(String value) {
if(value != null) {
return value;
} else {
return "null";
}
}
void initialize() {
if(valueArray != null) {
valueMap = new HashMap(valueArray.length);
if(valueArray instanceof Object[][]) {
Object[][] valueArray2 = (Object[][])valueArray;
for(int i=0; i
