diff options
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.tcf.locator/src/org/eclipse/tcf/te/tcf/locator/nodes/LocatorModel.java')
| -rw-r--r-- | target_explorer/plugins/org.eclipse.tcf.te.tcf.locator/src/org/eclipse/tcf/te/tcf/locator/nodes/LocatorModel.java | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.tcf.locator/src/org/eclipse/tcf/te/tcf/locator/nodes/LocatorModel.java b/target_explorer/plugins/org.eclipse.tcf.te.tcf.locator/src/org/eclipse/tcf/te/tcf/locator/nodes/LocatorModel.java new file mode 100644 index 000000000..215ea5145 --- /dev/null +++ b/target_explorer/plugins/org.eclipse.tcf.te.tcf.locator/src/org/eclipse/tcf/te/tcf/locator/nodes/LocatorModel.java @@ -0,0 +1,241 @@ +/******************************************************************************* + * Copyright (c) 2011, 2013 Wind River Systems, Inc. and others. All rights reserved. + * This program and the accompanying materials are made available under the terms + * of the Eclipse Public License v1.0 which accompanies this distribution, and is + * available at http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Wind River Systems - initial API and implementation + *******************************************************************************/ +package org.eclipse.tcf.te.tcf.locator.nodes; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.UUID; +import java.util.concurrent.atomic.AtomicReference; + +import org.eclipse.core.runtime.Assert; +import org.eclipse.core.runtime.PlatformObject; +import org.eclipse.tcf.protocol.IPeer; +import org.eclipse.tcf.protocol.Protocol; +import org.eclipse.tcf.services.ILocator; +import org.eclipse.tcf.te.tcf.locator.activator.CoreBundleActivator; +import org.eclipse.tcf.te.tcf.locator.interfaces.ITracing; +import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel; +import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelLookupService; +import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelRefreshService; +import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelService; +import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelUpdateService; +import org.eclipse.tcf.te.tcf.locator.listener.LocatorListener; +import org.eclipse.tcf.te.tcf.locator.services.LocatorModelLookupService; +import org.eclipse.tcf.te.tcf.locator.services.LocatorModelRefreshService; +import org.eclipse.tcf.te.tcf.locator.services.LocatorModelUpdateService; + + +/** + * Default locator model implementation. + */ +public class LocatorModel extends PlatformObject implements ILocatorModel { + // The unique model id + private final UUID uniqueId = UUID.randomUUID(); + // Flag to mark the model disposed + private boolean disposed; + + // The list of known peers + /* default */ final Map<String, IPeer> peers = new HashMap<String, IPeer>(); + // The list of "proxied" peers per proxy peer id + /* default */ final Map<String, List<IPeer>> peerChildren = new HashMap<String, List<IPeer>>(); + + // Reference to the model locator listener + private ILocator.LocatorListener locatorListener = null; + + // Reference to the refresh service + private final ILocatorModelRefreshService refreshService = new LocatorModelRefreshService(this); + // Reference to the lookup service + private final ILocatorModelLookupService lookupService = new LocatorModelLookupService(this); + // Reference to the update service + private final ILocatorModelUpdateService updateService = new LocatorModelUpdateService(this); + /** + * Constructor. + */ + public LocatorModel() { + super(); + disposed = false; + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.core.interfaces.nodes.ILocatorModel#dispose() + */ + @Override + public void dispose() { + Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$ + + if (CoreBundleActivator.getTraceHandler().isSlotEnabled(0, ITracing.ID_TRACE_LOCATOR_MODEL)) { + CoreBundleActivator.getTraceHandler().trace("PeerModel.dispose()", ITracing.ID_TRACE_LOCATOR_MODEL, this); //$NON-NLS-1$ + } + + // If already disposed, we are done immediately + if (disposed) return; + + disposed = true; + + if (locatorListener != null) { + Protocol.getLocator().removeListener(locatorListener); + locatorListener = null; + } + + peers.clear(); + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.core.interfaces.nodes.ILocatorModel#isDisposed() + */ + @Override + public boolean isDisposed() { + return disposed; + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel#getPeers() + */ + @Override + public IPeer[] getPeers() { + final AtomicReference<IPeer[]> result = new AtomicReference<IPeer[]>(); + + Runnable runnable = new Runnable() { + @Override + public void run() { + result.set(peers.values().toArray(new IPeer[peers.values().size()])); + } + }; + + if (Protocol.isDispatchThread()) runnable.run(); + else Protocol.invokeAndWait(runnable); + + return result.get(); + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel#getChildren(java.lang.String) + */ + @Override + public List<IPeer> getChildren(final String parentPeerID) { + Assert.isNotNull(parentPeerID); + + final AtomicReference<List<IPeer>> result = new AtomicReference<List<IPeer>>(); + + Runnable runnable = new Runnable() { + @Override + public void run() { + List<IPeer> children = peerChildren.get(parentPeerID); + if (children == null) children = Collections.emptyList(); + result.set(children); + } + }; + + if (Protocol.isDispatchThread()) runnable.run(); + else Protocol.invokeAndWait(runnable); + + return Collections.unmodifiableList(result.get()); + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel#setChildren(java.lang.String, java.util.List) + */ + @Override + public void setChildren(String parentPeerID, List<IPeer> children) { + Assert.isNotNull(parentPeerID); + Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$ + + if (children == null || children.size() == 0) { + peerChildren.remove(parentPeerID); + } else { + peerChildren.put(parentPeerID, new ArrayList<IPeer>(children)); + } + } + + /* (non-Javadoc) + * @see org.eclipse.core.runtime.PlatformObject#getAdapter(java.lang.Class) + */ + @Override + public Object getAdapter(Class adapter) { + if (adapter.isAssignableFrom(ILocator.LocatorListener.class)) { + return locatorListener; + } + if (adapter.isAssignableFrom(ILocatorModelRefreshService.class)) { + return refreshService; + } + if (adapter.isAssignableFrom(ILocatorModelLookupService.class)) { + return lookupService; + } + if (adapter.isAssignableFrom(ILocatorModelUpdateService.class)) { + return updateService; + } + if (adapter.isAssignableFrom(Map.class)) { + return peers; + } + + return super.getAdapter(adapter); + } + + /* (non-Javadoc) + * @see java.lang.Object#hashCode() + */ + @Override + public int hashCode() { + return uniqueId.hashCode(); + } + + /* (non-Javadoc) + * @see java.lang.Object#equals(java.lang.Object) + */ + @Override + public final boolean equals(Object obj) { + if (obj instanceof LocatorModel) { + return uniqueId.equals(((LocatorModel)obj).uniqueId); + } + return super.equals(obj); + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel#getService(java.lang.Class) + */ + @Override + @SuppressWarnings("unchecked") + public <V extends ILocatorModelService> V getService(Class<V> serviceInterface) { + Assert.isNotNull(serviceInterface); + return (V)getAdapter(serviceInterface); + } + + /** + * Check if the locator listener has been created and registered + * to the global locator service. + * <p> + * <b>Note:</b> This method is not intended to be call from clients. + */ + public void checkLocatorListener() { + Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$ + Assert.isNotNull(Protocol.getLocator()); + + if (locatorListener == null) { + locatorListener = doCreateLocatorListener(this); + Protocol.getLocator().addListener(locatorListener); + } + } + + /** + * Creates the locator listener instance. + * + * @param model The parent model. Must not be <code>null</code>. + * @return The locator listener instance. + */ + protected ILocator.LocatorListener doCreateLocatorListener(ILocatorModel model) { + Assert.isNotNull(model); + Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$ + + return new LocatorListener(model); + } +} |