Methods Summary |
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private static java.lang.String | attributeToNamePair(javax.management.Attribute attr)
return( attr.getName() + "=" + attr.getValue() );
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protected javax.management.MBeanAttributeInfo[] | buildAttributeInfos(javax.management.MBeanAttributeInfo[] parentAttributeInfos)
final String[] parentAttributeNames =
JMXUtil.getAttributeNames( parentAttributeInfos );
mParentAttributeNames =
GSetUtil.newUnmodifiableStringSet( parentAttributeNames );
final Map<String,Attribute> attributes = getAttributes();
final MBeanAttributeInfo[] infos =
new MBeanAttributeInfo[ attributes.size() + parentAttributeInfos.length ];
// make info for every Attribute
int i = 0;
for( final String name : attributes.keySet() )
{
final Attribute attr = attributes.get( name );
final Object value = attr.getValue();
final Class theClass = value == null ? String.class : attr.getValue().getClass();
infos[ i ] = new MBeanAttributeInfo( name, theClass.getName(), "",
true, isWriteableDottedName( name ), false );
++i;
}
System.arraycopy( parentAttributeInfos, 0,
infos, attributes.size(), parentAttributeInfos.length );
return( infos );
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protected javax.management.MBeanInfo | buildMBeanInfo()
final MBeanInfo superMBeanInfo = super.getMBeanInfo();
final MBeanAttributeInfo[] attributeInfos =
buildAttributeInfos( superMBeanInfo.getAttributes() );
final MBeanOperationInfo[] operationInfos =
buildOperationInfos( superMBeanInfo.getOperations() );
final MBeanInfo info = new MBeanInfo( this.getClass().getName(),
"exposes dotted-names as Attributes",
attributeInfos,
superMBeanInfo.getConstructors(),
operationInfos,
superMBeanInfo.getNotifications() );
return( info );
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protected javax.management.MBeanOperationInfo[] | buildOperationInfos(javax.management.MBeanOperationInfo[] existing)
final MBeanOperationInfo refreshInfo = new MBeanOperationInfo( "refresh",
"update MBeanInfo to reflect all available dotted names",
null,
Void.class.getName(),
MBeanOperationInfo.ACTION );
final MBeanOperationInfo[] infos = new MBeanOperationInfo[ existing.length + 1 ];
System.arraycopy( existing, 0, infos, 0, existing.length );
infos[ infos.length -1 ] = refreshInfo;
return( infos );
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private final void | checkLegalName(java.lang.String name)
checkRefresh();
if ( ! isLegalAttributeName( name ) )
{
throw new AttributeNotFoundException( "illegal attribute name: " + name );
}
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private void | checkRefresh()
if ( mRefreshNeeded )
{
refreshAttributes();
}
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protected void | debugMsg(java.lang.Object args)
mDebugHelper.println( args );
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public abstract java.lang.Object[] | dottedNameGet(java.lang.String[] names)
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public abstract java.lang.Object | dottedNameGet(java.lang.String name)
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public abstract java.lang.Object[] | dottedNameList(java.lang.String[] names)
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public abstract java.lang.Object[] | dottedNameSet(java.lang.String[] nameValuePairs)
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protected final void | ensureAttributes()
if ( mAttributes == null )
{
refreshAttributes();
}
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private synchronized void | ensureMBeanInfo()
if ( mMBeanInfo == null )
{
refresh();
assert( mMBeanInfo != null );
}
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protected final void | filterNames(java.lang.String[] in, java.util.Set dotted, java.util.Set parent)
for( int i = 0; i < in.length; ++i )
{
final String name = in[ i ];
if ( isDottedName( name ) )
{
dotted.add( name );
}
else if ( isParentAttributeName( name ) )
{
parent.add( name );
}
}
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public java.lang.Object | getAttribute(java.lang.String name)
checkLegalName( name );
mCoverage.attributeWasRead( name );
Object result = null;
if ( isDottedName( name ) )
{
result = dottedNameGet( name );
assert( !(result instanceof Attribute) );
}
else if ( isParentAttributeName( name ) )
{
result = super.getAttribute( name );
}
else
{
throw new AttributeNotFoundException( name );
}
return( result );
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public javax.management.AttributeList | getAttributes(java.lang.String[] names)
checkRefresh();
mCoverage.attributesWereRead( names );
final Set<String> dotted = new HashSet<String>();
final Set<String> parent = new HashSet<String>();
filterNames( names, dotted, parent);
final Object[] dottedResults =
dottedNameGet( (String[])dotted.toArray( new String[ dotted.size() ] ) );
final String[] namesForParent = new String[ parent.size() ];
final AttributeList parentResults =
super.getAttributes( (String[])parent.toArray( namesForParent ) );
final AttributeList successList = new AttributeList();
successList.addAll( parentResults );
// add all the dotted name results
for( int i = 0; i < dottedResults.length; ++i )
{
if ( dottedResults[ i ] instanceof Attribute )
{
successList.add( (Attribute)dottedResults[ i ] );
}
else
{
assert( dottedResults[ i ] instanceof Exception );
}
}
return( successList );
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protected final java.util.Map | getAttributes()
ensureAttributes();
return( mAttributes );
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protected final java.lang.String[] | getDottedNamesArray()
final Map<String,Attribute> map = getAttributes();
final Set<String> keySet = map.keySet();
return( (String[])keySet.toArray( new String[ keySet.size() ] ) );
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public javax.management.MBeanInfo | getMBeanInfo()Note the during registration, we won't have setup our delegate, and our
MBeanInfo will therefore not contain any Attributes.
MBeanInfo mbeanInfo = null;
checkRefresh();
if ( getOldDottedNames() != null )
{
ensureMBeanInfo();
mbeanInfo = mMBeanInfo;
}
else
{
mbeanInfo = super.getMBeanInfo();
}
return( mbeanInfo );
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public boolean | getMBeanInfoIsInvariant()MBeanInfo Attributes change whenever the dotted-namespace changes.
return( false );
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protected com.sun.enterprise.management.support.DottedNamesBase$OldDottedNamesProxy | getOldDottedNames()
// synchronization not needed; making more than one proxy is not an issue
if ( mOldDottedNamesProxy == null ) {
setupOldDottedNamesProxy();
}
return( mOldDottedNamesProxy );
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public java.lang.Object | invokeManually(java.lang.String operationName, java.lang.Object[] params, java.lang.String[] types)
final boolean noParams = params == null || params.length == 0;
Object result = null;
if ( operationName.equals( "refresh" ) && noParams )
{
refresh();
result = null;
}
else
{
result = super.invokeManually( operationName, params, types );
}
return( result );
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protected final boolean | isDottedName(java.lang.String name)
return( getAttributes().keySet().contains( name ) );
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protected final boolean | isLegalAttributeName(java.lang.String name)
ensureAttributes();
return( getAttributes().keySet().contains( name ) ||
mParentAttributeNames.contains( name ) );
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protected final boolean | isParentAttributeName(java.lang.String name)
return( mParentAttributeNames.contains( name ) );
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protected abstract boolean | isWriteableDottedName(java.lang.String name)
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private static javax.management.Attribute | namePairToAttribute(java.lang.String pair)
final int delimIndex = pair.indexOf( "=" );
assert( delimIndex >= 1 );
final String name = pair.substring( 0, delimIndex );
final String value = pair.substring( delimIndex + 1, pair.length() );
return( new Attribute( name, value ) );
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public void | postRegisterHook(java.lang.Boolean registrationSucceeded)
super.postRegisterHook( registrationSucceeded );
if ( registrationSucceeded.booleanValue() )
{
// start a thread upon completion of server startup that will mark things as needing
// a refresh, providing an accurate view of all available attributes without requiring
// the client to make an explicit call to refresh(). Failure to do this means
// that an empty or minimal state will be improperly returned.
final RunnableBase refresher = new RunnableBase() {
protected void doRun() {
FeatureAvailability.getInstance().waitForFeature(
SERVER_STARTED_FEATURE, "DottedNamesBase");
setupOldDottedNamesProxy();
mRefreshNeeded = true; // refresh lazily
}
};
refresher.submit( RunnableBase.HowToRun.RUN_IN_SEPARATE_THREAD );
}
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public final void | refresh()
refreshAttributes();
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final void | refreshAttributes()Refresh the MBeanInfo to reflect the currently available attributes.
Object result = null;
// if the lock cannot be acquired, that's just fine--another thread is already
// doing the work.
if ( mRefreshLock.tryLock() )
{
try
{
//trace( "##### DottedNamesBase.refreshAttributeNames" );
result = dottedNameGet( ALL_DOTTED_NAMES );
// results is an array of length 1. It should contain an Object[] containing
// everything obtained from ALL_DOTTED_NAMES
final Attribute[] values = (Attribute[])result;
// extract the name of each attribute
final Map<String,Attribute> map = new HashMap<String,Attribute>();
for( final Attribute attr : values )
{
map.put( attr.getName(), attr );
}
mAttributes = map;
mMBeanInfo = buildMBeanInfo();
mRefreshNeeded = false;
}
finally
{
mRefreshLock.unlock();
}
}
else
{
// wait till the other thread has finished, in order to allow
// the refresh to finish.
mRefreshLock.lock();
// release it
mRefreshLock.unlock();
}
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public void | setAttribute(javax.management.Attribute attr)
final String name = attr.getName();
if ( isParentAttributeName( name ) )
{
super.setAttribute( attr );
}
else
{
checkLegalName( name );
mCoverage.attributeWasWritten( name );
final AttributeList inList = new AttributeList();
inList.add( attr );
final AttributeList result = setAttributes( inList );
if ( result.size() != 1)
{
throw new InvalidAttributeValueException( attr.getName() );
}
}
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public javax.management.AttributeList | setAttributes(javax.management.AttributeList attributes)
/*
Convert each attribute to a name/value pair.
Omit any attributes that don't have a legal attribute name
*/
final int numAttrsIn = attributes.size();
final List<String> legalPairs = new ArrayList<String>();
for( int i = 0; i < numAttrsIn; ++i )
{
final Attribute attr = (Attribute)attributes.get( i );
final String name = attr.getName();
mCoverage.attributeWasWritten( name );
if ( isLegalAttributeName( name ) )
{
legalPairs.add( attributeToNamePair( attr ) );
}
}
final String[] pairs = (String[])legalPairs.toArray( new String[ legalPairs.size() ] );
final Object[] results = dottedNameSet( pairs );
final AttributeList attributeList = new AttributeList();
for( int i = 0; i < results.length; ++i )
{
if ( results[ i ] instanceof Attribute )
{
attributeList.add( (Attribute)results[ i ] );
}
else
{
assert( results[ i ] instanceof Exception );
// it's an exception
}
}
return( attributeList );
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protected void | setupOldDottedNamesProxy()
setupOldDottedNamesProxy( Util.newObjectName( DOTTED_NAMES ) );
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protected void | setupOldDottedNamesProxy(javax.management.ObjectName target)
final MBeanServer server = getMBeanServer();
// server can be null early at startup
if ( server != null && server.isRegistered( target ) )
{
mOldDottedNamesProxy = (OldDottedNamesProxy)
MBeanServerInvocationHandler.newProxyInstance(
server, target, OldDottedNamesProxy.class, false );
}
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