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Code Issues Wiki Activity

[206832] Created a non-UI CompositeDMContext.

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This commit is contained in:
Pawel Piech 2007-12-10 20:55:32 +00:00
parent 0f3f42167b
commit 4463f50fc6
6 changed files with 160 additions and 132 deletions
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4
plugins/org.eclipse.dd.dsf.debug.ui/src/org/eclipse/dd/dsf/debug/ui/viewmodel/register/RegisterGroupLayoutNode.java
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@ -33,7 +33,7 @@ import org.eclipse.dd.dsf.ui.viewmodel.AbstractVMProvider;
import org.eclipse.dd.dsf.ui.viewmodel.IVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.VMDelta;
import org.eclipse.dd.dsf.ui.viewmodel.dm.AbstractDMVMLayoutNode;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMContext;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.update.VMCacheManager;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.ILaunch;
@ -151,7 +151,7 @@ public class RegisterGroupLayoutNode extends AbstractExpressionLayoutNode
protected void updateElementsInSessionThread(final IChildrenUpdate update) {
if (!checkService(IRegisters.class, null, update)) return;
CompositeDMContext compositeDmc = new CompositeDMContext(getVMProvider().getRootElement(), update.getElementPath());
CompositeDMVMContext compositeDmc = new CompositeDMVMContext(getVMProvider().getRootElement(), update.getElementPath());
getServicesTracker().getService(IRegisters.class).getRegisterGroups(
compositeDmc,
new DataRequestMonitor<IRegisterGroupDMContext[]>(getSession().getExecutor(), null) {

4
plugins/org.eclipse.dd.dsf.debug.ui/src/org/eclipse/dd/dsf/debug/ui/viewmodel/register/RegisterLayoutNode.java
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@ -38,7 +38,7 @@ import org.eclipse.dd.dsf.ui.viewmodel.AbstractVMProvider;
import org.eclipse.dd.dsf.ui.viewmodel.IVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.VMDelta;
import org.eclipse.dd.dsf.ui.viewmodel.dm.AbstractDMVMLayoutNode;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMContext;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.update.VMCacheManager;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.ILaunch;
@ -371,7 +371,7 @@ public class RegisterLayoutNode extends AbstractExpressionLayoutNode
@Override
protected void updateElementsInSessionThread(final IChildrenUpdate update) {
CompositeDMContext compositeDmc = new CompositeDMContext(getVMProvider().getRootElement(), update.getElementPath());
CompositeDMVMContext compositeDmc = new CompositeDMVMContext(getVMProvider().getRootElement(), update.getElementPath());
getServicesTracker().getService(IRegisters.class).getRegisters(
compositeDmc,

4
plugins/org.eclipse.dd.dsf.debug.ui/src/org/eclipse/dd/dsf/debug/ui/viewmodel/variable/VariableLayoutNode.java
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@ -41,7 +41,7 @@ import org.eclipse.dd.dsf.ui.viewmodel.AbstractVMProvider;
import org.eclipse.dd.dsf.ui.viewmodel.IVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.IVMLayoutNode;
import org.eclipse.dd.dsf.ui.viewmodel.VMDelta;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMContext;
import org.eclipse.dd.dsf.ui.viewmodel.dm.CompositeDMVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.update.VMCacheManager;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.ILaunch;
@ -440,7 +440,7 @@ public class VariableLayoutNode extends AbstractExpressionLayoutNode implements
@Override
protected void getElementForExpressionPart(IChildrenUpdate update, String expressionPartText, DataRequestMonitor<Object> rm) {
CompositeDMContext compositeDmc = new CompositeDMContext(getVMProvider().getRootElement(), update.getElementPath());
CompositeDMVMContext compositeDmc = new CompositeDMVMContext(getVMProvider().getRootElement(), update.getElementPath());
final IExpressions expressionService = getServicesTracker().getService(IExpressions.class);
IExpressionDMContext expressionDMC = expressionService.createExpression(compositeDmc, expressionPartText);

126
plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/dm/CompositeDMContext.java
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@ -1,126 +0,0 @@
/*******************************************************************************
* Copyright (c) 2007 Wind River Systems 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.dd.dsf.ui.viewmodel.dm;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.dd.dsf.datamodel.IDMContext;
import org.eclipse.dd.dsf.ui.viewmodel.dm.AbstractDMVMLayoutNode.DMVMContext;
import org.eclipse.jface.viewers.TreePath;
/**
* Object used to combine several DM Contexts found in a tree path of a viewer
* update. This object allows the view model to pass complete data model context
* information found in the view to the services.
*/
public class CompositeDMContext implements IDMContext {
/**
* The input object to the view. This object is not included in the tree
* path.
*/
private final Object fViewerInputObject;
/**
* The tree path for which the context is created.
*/
private final TreePath fTreePath;
/**
* The list of parent contexts derived from the input object and
* the path. It is calculated on demand.
*/
private IDMContext[] fParents;
/**
* Main constructor provides all data needed to implement the IModelContext
* interface.
*/
public CompositeDMContext(Object viewerInputObject, TreePath treePath) {
fViewerInputObject = viewerInputObject;
fTreePath = treePath;
}
/**
* Returns the session ID of the last DMVMContext element found in the tree
* path of this composite context. May return an empty string if no DMVMContext
* is found in path.
* <p>
* Note: The session ID is primarily used by UI components to get access to the
* correct session and executor for the given context. The composite context is
* intended to be created by UI clients which already know the session ID so
* the fact that this method may not return a reliable result is acceptable.
* </p>
*/
public String getSessionId() {
return getElement().getDMC().getSessionId();
}
public IDMContext[] getParents() {
if (fParents == null) {
List<IDMContext> parentsList = new ArrayList<IDMContext>(fTreePath.getSegmentCount() + 1);
for (int i = fTreePath.getSegmentCount() - 1; i >=0 ; i--) {
if (fTreePath.getSegment(i) instanceof DMVMContext) {
parentsList.add( ((DMVMContext)fTreePath.getSegment(i)).getDMC() );
}
}
if (fViewerInputObject instanceof DMVMContext) {
parentsList.add( ((DMVMContext)fViewerInputObject).getDMC() );
}
fParents = parentsList.toArray(new IDMContext[parentsList.size()]);
}
return fParents;
}
/**
* Returns the given adapter of the last DMVMContext element found in the tree
* path of this composite context. Will return null if no DMVMContext is found
* in path.
* @see #getSessionId()
*/
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapterType) {
return getElement().getAdapter(adapterType);
}
@Override
public boolean equals(Object obj) {
return obj instanceof CompositeDMContext &&
((CompositeDMContext)obj).fTreePath.equals(fTreePath) &&
((CompositeDMContext)obj).fViewerInputObject.equals(fViewerInputObject);
}
@Override
public int hashCode() {
return fTreePath.hashCode() + fViewerInputObject.hashCode();
}
/**
* Returns the principal element that this composite context is based on.
* It is used for calculating the session ID and the adapters of this
* context. May return <code>null</code> if no DMVMContext is found in
* path.
*/
private DMVMContext getElement() {
for (int i = fTreePath.getSegmentCount() - 1; i >= 0; i--) {
if (fTreePath.getSegment(i) instanceof DMVMContext) {
return (DMVMContext)fTreePath.getSegment(i);
}
}
if (fViewerInputObject instanceof DMVMContext) {
return (DMVMContext)fViewerInputObject;
}
return null;
}
}

62
plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/dm/CompositeDMVMContext.java Normal file
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@ -0,0 +1,62 @@
/*******************************************************************************
* Copyright (c) 2007 Wind River Systems 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.dd.dsf.ui.viewmodel.dm;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.dd.dsf.datamodel.IDMContext;
import org.eclipse.dd.dsf.datamodel.CompositeDMContext;
import org.eclipse.dd.dsf.ui.viewmodel.dm.AbstractDMVMLayoutNode.DMVMContext;
import org.eclipse.jface.viewers.TreePath;
/**
* Object used to combine several DM Contexts found in a tree path of a viewer
* update. This object allows the view model to pass complete data model context
* information found in the view to the services.
*/
public class CompositeDMVMContext extends CompositeDMContext {
/**
* Have to pass in an empty array of contexts to parent constructor
* in order to be able to calculate the
*/
private static IDMContext[] EMPTY_CONTEXTS_ARRAY = new IDMContext[0];
/**
* The list of parent contexts derived from the input object and
* the path. It is calculated on demand.
*/
private IDMContext[] fParents;
/**
* Creates a composite context based on view model
*/
public CompositeDMVMContext(Object viewerInputObject, TreePath treePath) {
super(EMPTY_CONTEXTS_ARRAY);
List<IDMContext> parentsList = new ArrayList<IDMContext>(treePath.getSegmentCount() + 1);
for (int i = treePath.getSegmentCount() - 1; i >=0 ; i--) {
if (treePath.getSegment(i) instanceof DMVMContext) {
parentsList.add( ((DMVMContext)treePath.getSegment(i)).getDMC() );
}
}
if (viewerInputObject instanceof DMVMContext) {
parentsList.add( ((DMVMContext)viewerInputObject).getDMC() );
}
fParents = parentsList.toArray(new IDMContext[parentsList.size()]);
}
@Override
public IDMContext[] getParents() {
return fParents;
}
}

92
plugins/org.eclipse.dd.dsf/src/org/eclipse/dd/dsf/datamodel/CompositeDMContext.java Normal file
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@ -0,0 +1,92 @@
/*******************************************************************************
* Copyright (c) 2007 Wind River Systems 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.dd.dsf.datamodel;
import java.util.Arrays;
/**
* Generic DM context used to combine several DM Contexts. This object allows
* clients and other services to combine several contexts into one in order to
* pass them as an argument to a method which takes a generic context as an
* argument.
*/
public class CompositeDMContext implements IDMContext {
public static String INVALID_SESSION_ID = ""; //$NON-NLS-1$
/**
* The list of parent contexts that this composite context is made up of.
*/
private final IDMContext[] fParents;
/**
* Main constructor provides all data needed to implement the IModelContext
* interface.
* @param parents Array of parent contexts that this composite context is
* made up of. It can be an empty array, but it cannot be null.
*/
public CompositeDMContext(IDMContext[] parents) {
fParents = parents;
}
/**
* Returns the session ID of the first element in the array of parents of this
* context. May return an empty string if the parents array has no elements.
* <p>
* Note: The session ID is primarily used by UI components to get access to the
* correct session and executor for the given context. The composite context is
* intended to be created by clients which already know the session ID so
* the fact that this method may not return a reliable result is acceptable.
* </p>
*/
public String getSessionId() {
IDMContext[] parents = getParents();
if (parents.length > 0) {
return parents[0].getSessionId();
} else {
return INVALID_SESSION_ID;
}
}
/**
* Returns the list of parents that this composite context is based on. Subclasses
* may override this method to calculate their own set of parents.
*/
public IDMContext[] getParents() {
return fParents;
}
/**
* Returns the given adapter of the last DMVMContext element found in the tree
* path of this composite context. Will return null if no DMVMContext is found
* in path.
* @see #getSessionId()
*/
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapterType) {
IDMContext[] parents = getParents();
if (parents.length > 0) {
return parents[0].getAdapter(adapterType);
} else {
return null;
}
}
@Override
public boolean equals(Object obj) {
return obj instanceof CompositeDMContext && Arrays.equals(((CompositeDMContext)obj).getParents(), getParents());
}
@Override
public int hashCode() {
return Arrays.hashCode(getParents());
}
}