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Diffstat (limited to 'org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/elements/adapters/DeferredVariable.java')
-rw-r--r--org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/elements/adapters/DeferredVariable.java237
1 files changed, 0 insertions, 237 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/elements/adapters/DeferredVariable.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/elements/adapters/DeferredVariable.java
deleted file mode 100644
index d75f2bb08..000000000
--- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/elements/adapters/DeferredVariable.java
+++ /dev/null
@@ -1,237 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2005 IBM Corporation 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:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.debug.internal.ui.elements.adapters;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.debug.core.DebugException;
-import org.eclipse.debug.core.DebugPlugin;
-import org.eclipse.debug.core.ILogicalStructureType;
-import org.eclipse.debug.core.model.IDebugElement;
-import org.eclipse.debug.core.model.IIndexedValue;
-import org.eclipse.debug.core.model.IValue;
-import org.eclipse.debug.core.model.IVariable;
-import org.eclipse.debug.internal.ui.views.variables.IndexedVariablePartition;
-import org.eclipse.debug.internal.ui.views.variables.RemoteVariableContentManager;
-import org.eclipse.debug.ui.DeferredDebugElementWorkbenchAdapter;
-import org.eclipse.ui.progress.IElementCollector;
-
-
-/**
- * Default deferred content provider for a variable
- */
-public class DeferredVariable extends DeferredDebugElementWorkbenchAdapter {
-
- private static final IVariable[] EMPTY_VARS = new IVariable[0];
-
- /* (non-Javadoc)
- * @see org.eclipse.ui.model.IWorkbenchAdapter#getChildren(java.lang.Object)
- */
- public Object[] getChildren(Object parent) {
- if (parent instanceof IVariable) {
- try {
- IVariable variable = (IVariable) parent;
- IValue value = variable.getValue();
- if (value != null) {
- return getValueChildren(variable, value);
- }
- } catch (DebugException e) {
- }
- }
- return EMPTY;
- }
-
- /* (non-Javadoc)
- * @see org.eclipse.ui.progress.IDeferredWorkbenchAdapter#fetchDeferredChildren(java.lang.Object, org.eclipse.ui.progress.IElementCollector, org.eclipse.core.runtime.IProgressMonitor)
- */
- public void fetchDeferredChildren(Object object, IElementCollector collector, IProgressMonitor monitor) {
- if (monitor.isCanceled()) {
- return;
- }
- Object[] children = getChildren(object);
- if (monitor.isCanceled()) {
- return;
- }
- if (children.length > 0) {
- if (collector instanceof RemoteVariableContentManager.VariableCollector) {
- RemoteVariableContentManager.VariableCollector remoteCollector = (RemoteVariableContentManager.VariableCollector) collector;
- for (int i = 0; i < children.length; i++) {
- if (monitor.isCanceled()) {
- return;
- }
- Object child = children[i];
- remoteCollector.setHasChildren(child, hasChildren(child));
- }
- }
- collector.add(children, monitor);
- }
- collector.done();
- }
-
- protected boolean hasChildren(Object child) {
- if (child instanceof IVariable) {
- IVariable var = (IVariable) child;
- try {
- IValue value = var.getValue();
- return value.hasVariables();
- } catch (DebugException e) {
- }
- }
- return false;
- }
-
- /* (non-Javadoc)
- * @see org.eclipse.ui.model.IWorkbenchAdapter#getParent(java.lang.Object)
- */
- public Object getParent(Object element) {
- return null;
- }
-
- /**
- * Returns children for the given value, creating array paritions if required
- *
- * @param parent expression or variable containing the given value
- * @param value the value to retrieve children for
- * @return children for the given value, creating array paritions if required
- * @throws DebugException
- */
- protected IVariable[] getValueChildren(IDebugElement parent, IValue value) throws DebugException {
- if (value == null) {
- return EMPTY_VARS;
- }
- IValue logicalValue = getLogicalValue(value);
- if (logicalValue instanceof IIndexedValue) {
- IIndexedValue indexedValue = (IIndexedValue)logicalValue;
- int partitionSize = computeParitionSize(indexedValue);
- if (partitionSize > 1) {
- int offset = indexedValue.getInitialOffset();
- int length = indexedValue.getSize();
- int numPartitions = length / partitionSize;
- int remainder = length % partitionSize;
- if (remainder > 0) {
- numPartitions++;
- }
- IVariable[] partitions = new IVariable[numPartitions];
- for (int i = 0; i < (numPartitions - 1); i++) {
- partitions[i] = new IndexedVariablePartition(parent, indexedValue, offset, partitionSize);
- offset = offset + partitionSize;
- }
- if (remainder == 0) {
- remainder = partitionSize;
- }
- partitions[numPartitions - 1] = new IndexedVariablePartition(parent, indexedValue, offset, remainder);
- return partitions;
- }
- }
- if (logicalValue == null) {
- // safeguard against an structure type returning null
- logicalValue = value;
- }
- return logicalValue.getVariables();
- }
-
- /**
- * Returns any logical value for the raw value.
- *
- * @param value
- * @return
- */
- protected IValue getLogicalValue(IValue value) {
- return getLogicalValue(value, new ArrayList());
- }
-
- /**
- * Returns any logical value for the raw value. This method will recurse
- * over the returned value until the same structure is encountered again
- * (to avoid infinite recursion).
- *
- * @param value
- * @param previousStructureIds the list of logical structures that have already
- * been applied to the returned value during the recursion of this method. Callers
- * should always pass in a new, empty list.
- * @return
- */
- private IValue getLogicalValue(IValue value, List previousStructureIds) {
- if (isShowLogicalStructure()) {
- ILogicalStructureType[] types = DebugPlugin.getLogicalStructureTypes(value);
- if (types.length > 0) {
- ILogicalStructureType type = DebugPlugin.getDefaultStructureType(types);
- if (type != null && !previousStructureIds.contains(type.getId())) {
- try {
- value= type.getLogicalStructure(value);
- previousStructureIds.add(type.getId());
- return getLogicalValue(value, previousStructureIds);
- } catch (CoreException e) {
- // unable to display logical structure
- }
- }
- }
- }
- return value;
- }
-
- /**
- * Return wether to show compute a logical structure or a raw structure.
- *
- * @return wether to show compute a logical structure or a raw structure
- */
- protected boolean isShowLogicalStructure() {
- return false;
- }
-
- /**
- * Returns the partition size to use for the given indexed value.
- * The partition size is computed by determining the number of levels
- * that an indexed collection must be nested in order to partition
- * the collection sub-collections of the preferred partition size.
- *
- * @param value indexed value
- * @return size of paritions the value should be subdivided into
- */
- protected int computeParitionSize(IIndexedValue value) {
- int partitionSize = 1;
- try {
- int length = value.getSize();
- int partitionDepth = 0;
- int preferredSize = getArrayPartitionSize();
- int remainder = length % preferredSize;
- length = length / preferredSize;
- while (length > 0) {
- if (remainder == 0 && length == 1) {
- break;
- }
- partitionDepth++;
- remainder = length % preferredSize;
- length = length / preferredSize;
- }
- for (int i = 0; i < partitionDepth; i++) {
- partitionSize = partitionSize * preferredSize;
- }
- } catch (DebugException e) {
- }
- return partitionSize;
- }
-
- /**
- * Returns the number of entries that should be displayed in each
- * partition of an indexed collection.
- *
- * @return the number of entries that should be displayed in each
- * partition of an indexed collection
- */
- protected int getArrayPartitionSize() {
- // TODO: should fix this with a user pref
- return 100;
- }
-}

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