diff options
Diffstat (limited to 'org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java')
| -rw-r--r-- | org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java | 384 |
1 files changed, 198 insertions, 186 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java index c99109a02..4669b9a4a 100644 --- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java +++ b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/memory/MemoryViewSynchronizationService.java @@ -27,63 +27,59 @@ import org.eclipse.swt.widgets.Display; /** * Synchronization service for the memory view. + * * @since 3.1 */ -public class MemoryViewSynchronizationService implements - IMemoryRenderingSynchronizationService, IMemoryBlockListener, IPropertyChangeListener { +public class MemoryViewSynchronizationService implements IMemoryRenderingSynchronizationService, IMemoryBlockListener, IPropertyChangeListener { private static final int ENABLED = 0; private static final int ENABLING = 1; private static final int DISABLED = 2; - - private Hashtable fSynchronizeInfo; + + private Hashtable<IMemoryBlock, SynchronizeInfo> fSynchronizeInfo; private int fEnableState = ENABLED; - private Hashtable fPropertyListeners; - + private Hashtable<IPropertyChangeListener, PropertyListener> fPropertyListeners; + private IMemoryRendering fLastChangedRendering; private IMemoryRendering fSyncServiceProvider; private static final boolean DEBUG_SYNC_SERVICE = false; - - public MemoryViewSynchronizationService() - { - fSynchronizeInfo = new Hashtable(); - fPropertyListeners = new Hashtable(); + + public MemoryViewSynchronizationService() { + fSynchronizeInfo = new Hashtable<IMemoryBlock, SynchronizeInfo>(); + fPropertyListeners = new Hashtable<IPropertyChangeListener, PropertyListener>(); MemoryViewUtil.getMemoryBlockManager().addListener(this); } /** - * Wrapper for ISynchronizedMemoryBlockView - * Holds a list of property filters for the view. + * Wrapper for ISynchronizedMemoryBlockView Holds a list of property filters + * for the view. */ - class PropertyListener - { + class PropertyListener { IPropertyChangeListener fListener; String[] fFilters; - - public PropertyListener(IPropertyChangeListener listener, String[] properties) - { + + public PropertyListener(IPropertyChangeListener listener, String[] properties) { fListener = listener; - - if(properties != null) - { + + if (properties != null) { fFilters = properties; } } /** - * If the property matches one of the filters, the property - * is valid and the view should be notified about its change. + * If the property matches one of the filters, the property is valid and + * the view should be notified about its change. + * * @param property the property * @return if the property is specified in the filter */ - public boolean isValidProperty(String property){ - if (fFilters == null) + public boolean isValidProperty(String property) { + if (fFilters == null) { return true; - for (int i=0; i<fFilters.length; i++) - { - if (fFilters[i].equals(property)) - { + } + for (int i = 0; i < fFilters.length; i++) { + if (fFilters[i].equals(property)) { return true; } } @@ -91,11 +87,12 @@ public class MemoryViewSynchronizationService implements } /** - * Set property filters, indicating what property change events - * the listener is interested in. + * Set property filters, indicating what property change events the + * listener is interested in. + * * @param filters the property filters or <code>null</code> */ - public void setPropertyFilters(String[] filters){ + public void setPropertyFilters(String[] filters) { fFilters = filters; } @@ -106,241 +103,257 @@ public class MemoryViewSynchronizationService implements return fListener; } } - - /* (non-Javadoc) - * @see org.eclipse.debug.ui.IMemoryBlockViewSynchronizer#getSynchronizedProperty(org.eclipse.debug.ui.ISynchronizedMemoryBlockView, java.lang.String) + + /* + * (non-Javadoc) + * @see + * org.eclipse.debug.ui.IMemoryBlockViewSynchronizer#getSynchronizedProperty + * (org.eclipse.debug.ui.ISynchronizedMemoryBlockView, java.lang.String) */ - public Object getSynchronizedProperty(IMemoryBlock memoryBlock, String propertyId) - { - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(memoryBlock); - - if (info != null) - { + public Object getSynchronizedProperty(IMemoryBlock memoryBlock, String propertyId) { + SynchronizeInfo info = fSynchronizeInfo.get(memoryBlock); + + if (info != null) { Object value = info.getProperty(propertyId); return value; } - + return null; } - /* (non-Javadoc) - * @see org.eclipse.debug.ui.IMemoryBlockListener#MemoryBlockAdded(org.eclipse.debug.core.model.IMemoryBlock) + /* + * (non-Javadoc) + * @see + * org.eclipse.debug.ui.IMemoryBlockListener#MemoryBlockAdded(org.eclipse + * .debug.core.model.IMemoryBlock) */ + @Override public void memoryBlocksAdded(IMemoryBlock[] memoryBlocks) { // do nothing when a memory block is added // create a synchronize info object when there is a fView // tab registered to be synchronized. - - + } - /* (non-Javadoc) - * @see org.eclipse.debug.ui.IMemoryBlockListener#MemoryBlockRemoved(org.eclipse.debug.core.model.IMemoryBlock) + /* + * (non-Javadoc) + * @see + * org.eclipse.debug.ui.IMemoryBlockListener#MemoryBlockRemoved(org.eclipse + * .debug.core.model.IMemoryBlock) */ + @Override public void memoryBlocksRemoved(IMemoryBlock[] memoryBlocks) { - + // Sync info can be null if the service is already shut down - if (fSynchronizeInfo == null) + if (fSynchronizeInfo == null) { return; - - for (int i=0; i<memoryBlocks.length; i++) - { + } + + for (int i = 0; i < memoryBlocks.length; i++) { IMemoryBlock memory = memoryBlocks[i]; - - if (fLastChangedRendering != null && fLastChangedRendering.getMemoryBlock() == memory) + + if (fLastChangedRendering != null && fLastChangedRendering.getMemoryBlock() == memory) { fLastChangedRendering = null; - - if (fSyncServiceProvider != null && fSyncServiceProvider.getMemoryBlock() == memory) + } + + if (fSyncServiceProvider != null && fSyncServiceProvider.getMemoryBlock() == memory) { fSyncServiceProvider = null; - + } + // delete the info object and remove it from fSynchronizeInfo // when the memory block is deleted - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(memory); - - if (info != null) - { + SynchronizeInfo info = fSynchronizeInfo.get(memory); + + if (info != null) { info.delete(); fSynchronizeInfo.remove(memory); } } } - + /** * Clean up when the plug-in is shutdown */ - public void shutdown() - { - if (fSynchronizeInfo != null) - { - Enumeration enumeration = fSynchronizeInfo.elements(); - + public void shutdown() { + if (fSynchronizeInfo != null) { + Enumeration<SynchronizeInfo> enumeration = fSynchronizeInfo.elements(); + // clean up all synchronize info objects - while (enumeration.hasMoreElements()){ - SynchronizeInfo info = (SynchronizeInfo)enumeration.nextElement(); + while (enumeration.hasMoreElements()) { + SynchronizeInfo info = enumeration.nextElement(); info.delete(); } - + fSynchronizeInfo.clear(); fSynchronizeInfo = null; } MemoryViewUtil.getMemoryBlockManager().removeListener(this); } - - - /* (non-Javadoc) - * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService#addPropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener, java.lang.String[]) + + /* + * (non-Javadoc) + * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService# + * addPropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener, + * java.lang.String[]) */ + @Override public void addPropertyChangeListener(IPropertyChangeListener listener, String[] properties) { fPropertyListeners.put(listener, new PropertyListener(listener, properties)); } - /* (non-Javadoc) - * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService#removePropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener) + /* + * (non-Javadoc) + * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService# + * removePropertyChangeListener + * (org.eclipse.jface.util.IPropertyChangeListener) */ + @Override public void removePropertyChangeListener(IPropertyChangeListener listener) { - if (fPropertyListeners.containsKey(listener)) - { + if (fPropertyListeners.containsKey(listener)) { fPropertyListeners.remove(listener); } } - + /** * Fire property change events + * * @param evt the event to fire */ - public void firePropertyChanged(final PropertyChangeEvent evt) - { + public void firePropertyChanged(final PropertyChangeEvent evt) { // do not fire property changed event if the synchronization // service is disabled - if (fEnableState == DISABLED) + if (fEnableState == DISABLED) { return; - + } + // Make sure the synchronizer does not swallow any events // Values of the properties are updated in the syncrhonizer immediately. // Change events are queued up on the UI Thread. - Display.getDefault().syncExec(new Runnable() - { - public void run() - { - if (fSynchronizeInfo == null) + Display.getDefault().syncExec(new Runnable() { + @Override + public void run() { + if (fSynchronizeInfo == null) { return; - - IMemoryRendering rendering = (IMemoryRendering)evt.getSource(); + } + + IMemoryRendering rendering = (IMemoryRendering) evt.getSource(); String propertyId = evt.getProperty(); - - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(rendering.getMemoryBlock()); - if (info != null) - { + + SynchronizeInfo info = fSynchronizeInfo.get(rendering.getMemoryBlock()); + if (info != null) { Object value = info.getProperty(propertyId); - if (value != null) - { - Enumeration enumeration = fPropertyListeners.elements(); - - while(enumeration.hasMoreElements()) - { - PropertyListener listener = (PropertyListener)enumeration.nextElement(); - + if (value != null) { + Enumeration<PropertyListener> enumeration = fPropertyListeners.elements(); + + while (enumeration.hasMoreElements()) { + PropertyListener listener = enumeration.nextElement(); + IPropertyChangeListener origListener = listener.getListener(); - - // if it's a valid property - valid means that it's listed in the property filters - if (listener.isValidProperty(propertyId)){ + + // if it's a valid property - valid means that it's + // listed in the property filters + if (listener.isValidProperty(propertyId)) { PropertyChangeNotifier notifier = new PropertyChangeNotifier(origListener, evt); - SafeRunner.run(notifier); + SafeRunner.run(notifier); } } } } } }); - } - - /* (non-Javadoc) - * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService#getProperty(org.eclipse.debug.core.model.IMemoryBlock, java.lang.String) + } + + /* + * (non-Javadoc) + * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService# + * getProperty(org.eclipse.debug.core.model.IMemoryBlock, java.lang.String) */ + @Override public Object getProperty(IMemoryBlock block, String property) { - + // When the synchronization service is disabled // return null for all queries to properties // This is to ensure that renderings are not synchronized // to new synchronization properties when the sync service is // disabled. - if (!isEnabled()) + if (!isEnabled()) { return null; - - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(block); - - if (info != null) + } + + SynchronizeInfo info = fSynchronizeInfo.get(block); + + if (info != null) { return info.getProperty(property); - + } + return null; } - - /* (non-Javadoc) - * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) + /* + * (non-Javadoc) + * @see + * org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse + * .jface.util.PropertyChangeEvent) */ + @Override public void propertyChange(PropertyChangeEvent event) { - if (event == null || !(event.getSource() instanceof IMemoryRendering)) - { + if (event == null || !(event.getSource() instanceof IMemoryRendering)) { return; } - + // Do not handle any property changed event as the // sync service is being enabled. // Otherwise, current sync info provider may overwrite - // sync info unexpectedly. We want to sync with the rendering + // sync info unexpectedly. We want to sync with the rendering // that is last changed. - if (fEnableState == ENABLING) + if (fEnableState == ENABLING) { return; - - IMemoryRendering rendering = ((IMemoryRendering)event.getSource()); + } + + IMemoryRendering rendering = ((IMemoryRendering) event.getSource()); IMemoryBlock memoryBlock = rendering.getMemoryBlock(); String propertyId = event.getProperty(); Object value = event.getNewValue(); - - if (DEBUG_SYNC_SERVICE) - { + + if (DEBUG_SYNC_SERVICE) { DebugUIPlugin.trace("SYNC SERVICE RECEIVED CHANGED EVENT:"); //$NON-NLS-1$ DebugUIPlugin.trace("Source: " + rendering); //$NON-NLS-1$ DebugUIPlugin.trace("Property: " + propertyId); //$NON-NLS-1$ DebugUIPlugin.trace("Value: " + value); //$NON-NLS-1$ - - if (value instanceof BigInteger) - { - DebugUIPlugin.trace("Value in hex: " + ((BigInteger)value).toString(16)); //$NON-NLS-1$ + + if (value instanceof BigInteger) { + DebugUIPlugin.trace("Value in hex: " + ((BigInteger) value).toString(16)); //$NON-NLS-1$ } } - - if (memoryBlock == null) + + if (memoryBlock == null) { return; - - if (propertyId == null) + } + + if (propertyId == null) { return; - + } + // find the synchronize info object for the memory block - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(memoryBlock); - + SynchronizeInfo info = fSynchronizeInfo.get(memoryBlock); + // if info is not available, need to create one to hold the property - if (info == null) - { + if (info == null) { info = new SynchronizeInfo(memoryBlock); fSynchronizeInfo.put(memoryBlock, info); } - + // get the value of the property Object oldValue = info.getProperty(propertyId); - - if (oldValue == null) - { + + if (oldValue == null) { // if the value has never been added to the info object // set the property and fire a change event info.setProperty(propertyId, value); fLastChangedRendering = rendering; firePropertyChanged(event); return; - } - else if (!oldValue.equals(value)) - { + } else if (!oldValue.equals(value)) { // if the value has changed // set the property and fire a change event info.setProperty(propertyId, value); @@ -348,60 +361,57 @@ public class MemoryViewSynchronizationService implements firePropertyChanged(event); } } - - public void setEnabled(boolean enabled) - { - if (enabled && fEnableState == ENABLED) + + public void setEnabled(boolean enabled) { + if (enabled && fEnableState == ENABLED) { return; - - if (!enabled && fEnableState == DISABLED) + } + + if (!enabled && fEnableState == DISABLED) { return; - - try - { - if (enabled) - { + } + + try { + if (enabled) { fEnableState = ENABLING; - // get sync info from the sync service provider - if (fLastChangedRendering != null) - { + // get sync info from the sync service provider + if (fLastChangedRendering != null) { IMemoryBlock memBlock = fLastChangedRendering.getMemoryBlock(); - SynchronizeInfo info = (SynchronizeInfo)fSynchronizeInfo.get(memBlock); + SynchronizeInfo info = fSynchronizeInfo.get(memBlock); String[] ids = info.getPropertyIds(); - + // stop handling property changed event while the // synchronization service is being enabled // this is to get around problem when the last changed // rendering is not currently the sync info provider - - for (int i=0; i<ids.length; i++) - { + + for (int i = 0; i < ids.length; i++) { PropertyChangeEvent evt = new PropertyChangeEvent(fLastChangedRendering, ids[i], null, info.getProperty(ids[i])); firePropertyChanged(evt); } } } - } - finally - { - if (enabled) + } finally { + if (enabled) { fEnableState = ENABLED; - else + } else { fEnableState = DISABLED; + } } } - - public boolean isEnabled() - { + + public boolean isEnabled() { return fEnableState == ENABLED; } - - /* (non-Javadoc) - * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService#setSynchronizationProvider(org.eclipse.debug.ui.memory.IMemoryRendering) + /* + * (non-Javadoc) + * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService# + * setSynchronizationProvider(org.eclipse.debug.ui.memory.IMemoryRendering) */ + @Override public void setSynchronizationProvider(IMemoryRendering rendering) { - + if (DEBUG_SYNC_SERVICE) { DebugUIPlugin.trace("SYNCHRONIZATION PROVIDER: " + rendering); //$NON-NLS-1$ } @@ -413,11 +423,13 @@ public class MemoryViewSynchronizationService implements } fSyncServiceProvider = rendering; } - - /* (non-Javadoc) - * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService#getSynchronizationProvider() + /* + * (non-Javadoc) + * @see org.eclipse.debug.ui.memory.IMemoryRenderingSynchronizationService# + * getSynchronizationProvider() */ + @Override public IMemoryRendering getSynchronizationProvider() { return fSyncServiceProvider; } |