litesoft
@ 939
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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.render; import org.litesoft.commonfoundation.typeutils.*; import java.util.*; import org.litesoft.core.simpletypes.temporal.*; import org.litesoft.core.util.*; public class RenderProcessManager { public static final RenderProcessManager INSTANCE = new RenderProcessManager(); public interface Listener { public void processManagerNowHasProcesses(); } private RenderProcessManager() { } private static MillisecTimeSource sTimeSource = MillisecTimeSource.INSTANCE; public static void setTimeSource( MillisecTimeSource pSTimeSource ) { if ( pSTimeSource != null ) { sTimeSource = pSTimeSource; } } private Listener mListener = null; public synchronized Listener getListener() { return mListener; } public synchronized void setListener( Listener pListener ) { mListener = pListener; } private ProcessQueue mProcessesToRun = new ProcessQueue(); private DeferredProcessQueue mDeferredProcesses = new DeferredProcessQueue(); private DependentProcessSet mDependentProcesses = new DependentProcessSet(); public boolean isEmpty() { return mProcessesToRun.isEmpty() && mDeferredProcesses.isEmpty() && mDependentProcesses.isEmpty(); } /** * @return null means no Deferred Processes, !null means when the next Deferred Processes will be ready to run */ public synchronized Long whenIsNextDeferredProcess() { return mDeferredProcesses.whenIsNextDeferredProcess(); } public synchronized RenderHelperProcess first() { RenderHelperProcess rv = mProcessesToRun.first(); if ( rv == null ) { ProcessList zList = mDeferredProcesses.getReadyList(); if ( zList != null ) { for ( RenderHelperProcess zProcess : zList ) { mProcessesToRun.add( zProcess ); } rv = mProcessesToRun.first(); } } // System.out.println( toString() + "\n ->" + rv ); return rv; } public RenderHelperProcess queue( RenderHelperProcess pProcess ) { if ( pProcess != null ) { Listener zListener = null; synchronized ( this ) { if ( !mProcessesToRun.contains( pProcess ) && // !mDeferredProcesses.contains( pProcess ) && // !mDependentProcesses.contains( pProcess ) ) { if ( mProcessesToRun.isEmpty() ) { zListener = mListener; } mProcessesToRun.add( pProcess ); } } if ( zListener != null ) { mListener.processManagerNowHasProcesses(); } } return pProcess; } public synchronized void defer( RenderHelperProcess pProcessToDefer, int pForMillisecs ) { if ( (pProcessToDefer != null) && // !mDependentProcesses.contains( pProcessToDefer ) && !mDeferredProcesses.contains( pProcessToDefer ) ) { mProcessesToRun.remove( pProcessToDefer ); mDeferredProcesses.add( pProcessToDefer, pForMillisecs ); } } public synchronized void deferPending( RenderHelperProcess pDependentProcess, RenderHelperProcess pDependsOnProcess ) { if ( pDependentProcess != null ) { mProcessesToRun.remove( pDependentProcess ); mDeferredProcesses.remove( pDependentProcess ); mDependentProcesses.add( pDependentProcess ); } queue( pDependsOnProcess ); } public synchronized void release( RenderHelperProcess pDependentProcess ) { if ( pDependentProcess != null ) { mDeferredProcesses.remove( pDependentProcess ); mDependentProcesses.remove( pDependentProcess ); queue( pDependentProcess ); } } public String toString() { StringBuilder sb = new StringBuilder(); sb.append( "RenderProcessManager" ); LineIndentUtil.newLine( sb, 1 ).append( "ToRun:" ).append( mProcessesToRun ); LineIndentUtil.newLine( sb, 1 ).append( "Deferred:" ).append( mDeferredProcesses ); LineIndentUtil.newLine( sb, 1 ).append( "Dependent:" ).append( mDependentProcesses ); return sb.toString(); } public void clear() { mProcessesToRun.clear(); mDeferredProcesses.clear(); mDependentProcesses.clear(); } private static class ProcessList extends LinkedList<RenderHelperProcess> { } private static class DependentProcessSet extends HashSet<RenderHelperProcess> { public boolean add( RenderHelperProcess pProcess ) { pProcess.activate(); return super.add( pProcess ); } public String toString() { if ( isEmpty() ) { return ""; } String[] zStrings = Strings.toArray( this ); Arrays.sort( zStrings ); return " " + Arrays.asList( zStrings ).toString(); } } private static class ProcessQueue { private ProcessList mQueue = new ProcessList(); private HashSet<RenderHelperProcess> mQueued = new HashSet<RenderHelperProcess>(); public void clear() { mQueue.clear(); mQueued.clear(); } public boolean isEmpty() { return mQueue.isEmpty(); } public boolean contains( RenderHelperProcess pProcess ) { return mQueued.contains( pProcess ); } public void add( RenderHelperProcess pProcess ) { pProcess.activate(); if ( !contains( pProcess ) ) { mQueued.add( pProcess ); mQueue.add( pProcess ); } } public void remove( RenderHelperProcess pProcess ) { if ( mQueued.remove( pProcess ) ) { mQueue.remove( pProcess ); } } public RenderHelperProcess first() { if ( mQueued.isEmpty() ) { return null; } RenderHelperProcess zProcess = mQueue.removeFirst(); mQueued.remove( zProcess ); return zProcess; } public String toString() { return mQueue.isEmpty() ? "" : " " + mQueue.toString(); } } private static class DeferredProcessQueue { private PriorityQueue<Long> mWhens = new PriorityQueue<Long>(); private HashMap<Long, ProcessList> mProcessListByWhen = new HashMap<Long, ProcessList>(); private HashMap<RenderHelperProcess, Long> mWhenByProcess = new HashMap<RenderHelperProcess, Long>(); public void clear() { mWhens.clear(); mProcessListByWhen.clear(); mWhenByProcess.clear(); } public boolean isEmpty() { return mWhens.isEmpty(); } public Long whenIsNextDeferredProcess() { return mWhens.peek(); } public void add( RenderHelperProcess pProcess, int pForMillisecs ) { pProcess.activate(); if ( pForMillisecs < 1 ) { pForMillisecs = 1; } Long zWhen = sTimeSource.now() + pForMillisecs; mWhenByProcess.put( pProcess, zWhen ); ProcessList zProcessList = mProcessListByWhen.get( zWhen ); if ( zProcessList == null ) { mProcessListByWhen.put( zWhen, zProcessList = new ProcessList() ); mWhens.add( zWhen ); } zProcessList.add( pProcess ); } public ProcessList getReadyList() { Long zNextWhen = whenIsNextDeferredProcess(); if ( zNextWhen != null ) { long zNow = sTimeSource.now(); if ( zNow >= zNextWhen ) { mWhens.remove(); ProcessList zProcessList = mProcessListByWhen.remove( zNextWhen ); for ( RenderHelperProcess zProcess : zProcessList ) { mWhenByProcess.remove( zProcess ); } return zProcessList; } } return null; } public void remove( RenderHelperProcess pProcess ) { Long zLong = mWhenByProcess.remove( pProcess ); if ( zLong != null ) { ProcessList zProcessList = mProcessListByWhen.get( zLong ); if ( zProcessList != null ) { zProcessList.remove( pProcess ); if ( zProcessList.isEmpty() ) { mProcessListByWhen.remove( zLong ); mWhens.remove( zLong ); } } } } public boolean contains( RenderHelperProcess pProcess ) { return mWhenByProcess.containsKey( pProcess ); } public String toString() { if ( mWhens.isEmpty() ) { return ""; } StringBuilder sb = new StringBuilder(); long zNow = sTimeSource.now(); for ( Long zWhen : mWhens ) { if ( sb.length() != 0 ) { LineIndentUtil.newLine( sb, 2 ); } else { sb.append( ' ' ); } sb.append( zWhen - zNow ).append( '-' ).append( mProcessListByWhen.get( zWhen ) ); } return sb.toString(); } } } |
Commits for litesoft/trunk/Java/core/Anywhere/src/org/litesoft/render/RenderProcessManager.java
Revision | Author | Commited | Message |
---|---|---|---|
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
821 Diff | GeorgeS | Sun 19 Aug, 2012 00:08:41 +0000 | |
151 Diff | GeorgeS | Thu 17 Mar, 2011 04:16:22 +0000 | |
49 Diff | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |
2 | GeorgeS | Sun 07 Feb, 2010 12:50:58 +0000 |