| /* |
| * Copyright (c) 2011, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Matt MacIvor - 2.5 - initial implementation |
| package org.eclipse.persistence.core.queries; |
| |
| import java.io.Serializable; |
| import java.io.StringWriter; |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.IdentityHashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.persistence.core.descriptors.CoreDescriptor; |
| import org.eclipse.persistence.exceptions.ValidationException; |
| import org.eclipse.persistence.internal.core.queries.CoreAttributeConverter; |
| import org.eclipse.persistence.internal.helper.StringHelper; |
| import org.eclipse.persistence.internal.security.PrivilegedAccessHelper; |
| import org.eclipse.persistence.internal.security.PrivilegedClassForName; |
| |
| /** |
| * INTERNAL |
| * <b>Purpose</b>: A generic super class for AttributeGroup and other subclasses |
| * |
| * @see org.eclipse.persistence.queries.AttributeGroup |
| |
| * @author Matt MacIvor |
| * @since EclipseLink 2.5 |
| */ |
| public class CoreAttributeGroup< |
| ATTRIBUTE_ITEM extends CoreAttributeItem, |
| DESCRIPTOR extends CoreDescriptor> implements Serializable, Cloneable { |
| |
| /** |
| * Name parts separator. Used in {@link #toStringItems()} method to build output string. |
| */ |
| private static final String FIELD_SEP = ", "; |
| |
| private int toStringLoopCount = 0; |
| |
| /** |
| * Name of the group. This is used in subclasses where the groups are stored |
| * and can be used within a query by name as with FetchGroup. For dynamic |
| * groups the name has no functional value. |
| */ |
| protected String name; |
| |
| /** |
| * The name of the class represented by this AttrbuteGroup. Used to specify overriding |
| * groups for subclasses. |
| */ |
| protected String typeName; |
| /** |
| * The class represented by this AttrbuteGroup. Used to specify overriding |
| * groups for subclasses. |
| */ |
| protected Class type; |
| |
| /** |
| * To add inheritance support the two following attrbutes are used to create a model of the inheritance tree |
| * This attribute points to the parent AttributeGroup of this attribute group. |
| */ |
| protected CoreAttributeGroup superClassGroup; |
| |
| /** |
| * This attribute references the immediate subclass groups for this attributeGroup. This is not required but acts |
| * as a means to support adding inheritance branches into the an established tree. |
| */ |
| protected transient Set<CoreAttributeGroup> subClasses; |
| |
| /** |
| * This attribute is used to store all of the classes in this hierarchy keyed by type. It is used to find the correct graph |
| * for polymorphic groups. |
| */ |
| protected Map<Object, CoreAttributeGroup> allsubclasses; |
| |
| /** |
| * Specified attributes in the group mapped to their AttributeItems |
| */ |
| protected Map<String, ATTRIBUTE_ITEM> items; |
| |
| /** |
| * Marks this AttributeGroup as having been validated by the builder and does not require further validation |
| */ |
| protected boolean isValidated; |
| |
| public CoreAttributeGroup(String name) { |
| this.name = name; |
| } |
| |
| /* |
| * INTERNAL: |
| * Used to create an attribute with a name of the class type. |
| */ |
| public CoreAttributeGroup(String name, String type, boolean isValidated) { |
| this(name); |
| this.typeName = type; |
| this.isValidated = isValidated; |
| |
| } |
| |
| /** |
| * INTERNAL: |
| * This constructer is to only be used by EclipseLink internally |
| */ |
| public CoreAttributeGroup(String name, Class type, boolean isValidated) { |
| this(name); |
| this.type = type; |
| this.isValidated = isValidated; |
| |
| } |
| |
| public CoreAttributeGroup() { |
| this(""); |
| } |
| |
| /** |
| * Add a basic attribute or nested attribute with each String representing |
| * an attribute on the path to what needs to be included in the |
| * AttributeGroup. |
| * <p> |
| * Example: <code> |
| * group.addAttribute("firstName");<br> |
| * group.addAttribute("manager.address"); |
| * </code> |
| * |
| * @param attributeNameOrPath |
| * A simple attribute, array or attributes forming a path |
| */ |
| public void addAttribute(String attributeNameOrPath) { |
| addAttribute(attributeNameOrPath, (CoreAttributeGroup)null); |
| } |
| |
| /** |
| * Add an attribute and the corresponding list of AttributeGroups. |
| * Multiple groups are added in the case of inheritance |
| * |
| * @param attributeNameOrPath |
| * A simple attribute, array or attributes forming a path |
| * @param groups - a collection of AttributeGroups to be added. |
| */ |
| public void addAttribute(String attributeNameOrPath, Collection<? extends CoreAttributeGroup> groups) { |
| CoreAttributeItem item = getItem(CoreAttributeConverter.convert(attributeNameOrPath), true); |
| item.addGroups(groups); |
| } |
| |
| /** |
| * Add a basic attribute or nested attribute with each String representing |
| * an attribute on the path to what needs to be included in the |
| * AttributeGroup. |
| * <p> |
| * Example: <code> |
| * group.addAttribute("firstName", group1);<br> |
| * group.addAttribute("manager.address", group2); |
| * </code> |
| * |
| * Note that existing group corresponding to attributeNameOrPath |
| * will be overridden with the passed group. |
| * |
| * @param attributeNameOrPath |
| * A simple attribute, array or attributes forming a path |
| * @param group - an AttributeGroup to be added. |
| */ |
| public void addAttribute(String attributeNameOrPath, CoreAttributeGroup group) { |
| CoreAttributeItem item = getItem(CoreAttributeConverter.convert(attributeNameOrPath), true); |
| item.addSubGroup(group); |
| } |
| |
| /** |
| * Add a basic attribute or nested attribute with each String representing |
| * the key of an attribute of type Map on the path to what needs to be |
| * included in the AttributeGroup. |
| * <p> |
| * Example: <code> |
| * group.addAttribute("firstName", group1);<br> |
| * group.addAttribute("manager.address", group2); |
| * </code> |
| * |
| * Note that existing group corresponding to attributeNameOrPath will be |
| * overridden with the passed group. |
| * |
| * @param attributeNameOrPath |
| * A simple attribute, array or attributes forming a path to a |
| * Map key |
| * @param group |
| * - an AttributeGroup to be added. |
| */ |
| public void addAttributeKey(String attributeNameOrPath, CoreAttributeGroup group) { |
| CoreAttributeItem item = getItem(CoreAttributeConverter.convert(attributeNameOrPath), true); |
| item.addKeyGroup(group); |
| } |
| |
| /** |
| * Add a set of attributes to the group. |
| */ |
| public void addAttributes(Collection<String> attrOrPaths) { |
| for (String attr : attrOrPaths) { |
| addAttribute(attr); |
| } |
| } |
| |
| @Override |
| public CoreAttributeGroup clone() { |
| Map<CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>, CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>> cloneMap = new IdentityHashMap<>(); |
| return clone(cloneMap); |
| } |
| |
| /** |
| * INTERNAL: |
| * This method is used internally in the clone processing. |
| */ |
| public CoreAttributeGroup clone(Map<CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>, CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>> cloneMap){ |
| CoreAttributeGroup clone = cloneMap.get(this); |
| if (clone != null) { |
| return clone; |
| } |
| try { |
| clone = (CoreAttributeGroup) super.clone(); |
| } catch (CloneNotSupportedException e) { |
| throw new AssertionError(e); |
| } |
| clone.name = this.name; |
| clone.type = this.type; |
| clone.typeName = this.typeName; |
| clone.isValidated = this.isValidated; |
| cloneMap.put(this,clone); |
| if (this.allsubclasses != null){ |
| for (CoreAttributeGroup group : this.allsubclasses.values()){ |
| clone.getSubClassGroups().put(group.getType(), group.clone(cloneMap)); |
| } |
| } |
| if (this.superClassGroup != null){ |
| clone.superClassGroup = this.superClassGroup.clone(cloneMap); |
| } |
| if (this.subClasses != null){ |
| clone.subClasses = new HashSet<CoreAttributeGroup>(); |
| for (CoreAttributeGroup group : this.subClasses){ |
| clone.subClasses.add(group.clone(cloneMap)); |
| } |
| } |
| // all attributes and nested groups should be cloned, too |
| clone.items = null; |
| if (hasItems()) { |
| clone.items = new HashMap<String, ATTRIBUTE_ITEM>(); |
| for (ATTRIBUTE_ITEM item : this.items.values()){ |
| clone.items.put(item.getAttributeName(), item.clone(cloneMap, clone)); |
| } |
| } |
| return clone; |
| } |
| |
| /** |
| * Return if the attribute is defined in the group. |
| */ |
| public boolean containsAttribute(String attributeNameOrPath) { |
| String[] path = CoreAttributeConverter.convert(attributeNameOrPath); |
| |
| if (getItem(path, false) != null){ |
| return true; |
| } |
| if (this.hasInheritance() && this.superClassGroup != null){ |
| return this.superClassGroup.containsAttribute(attributeNameOrPath); |
| } |
| return false; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return if the attribute is defined in the group. |
| * Only local attribute names are checked. |
| */ |
| public boolean containsAttributeInternal(String attributeName) { |
| if (this.items != null && this.items.containsKey(attributeName)){ |
| return true; |
| } |
| if (this.hasInheritance() && this.superClassGroup != null){ |
| return this.superClassGroup.containsAttributeInternal(attributeName); |
| } |
| return false; |
| } |
| |
| /** |
| * Convert a provided name or path which could be a single attributeName, a |
| * single string with dot separated attribute names, or an array of |
| * attribute names defining the path. |
| * @throws IllegalArgumentException if name is not valid attribute name or path. |
| */ |
| // Old prototype to keep 2.5 API. Use CoreAttributeConverter.convert internally. |
| protected String[] convert(String... nameOrPath) { |
| return CoreAttributeConverter.convert(nameOrPath); |
| } |
| |
| /** |
| * INTERNAL: |
| * Convert all the class-name-based settings in this Descriptor to actual class-based |
| * settings. This method is used when converting a project that has been built |
| * with class names to a project with classes. |
| */ |
| public void convertClassNamesToClasses(ClassLoader classLoader){ |
| if (this.type == null){ |
| try{ |
| if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){ |
| try { |
| this.type = AccessController.doPrivileged(new PrivilegedClassForName(this.typeName, true, classLoader)); |
| } catch (PrivilegedActionException exception) { |
| throw ValidationException.classNotFoundWhileConvertingClassNames(this.typeName, exception.getException()); |
| } |
| } else { |
| this.type = org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(this.typeName, true, classLoader); |
| } |
| } catch (ClassNotFoundException exc){ |
| throw ValidationException.classNotFoundWhileConvertingClassNames(this.typeName, exc); |
| } |
| if (this.items != null){ |
| for (ATTRIBUTE_ITEM item : this.items.values()){ |
| item.convertClassNamesToClasses(classLoader); |
| } |
| } |
| if (this.allsubclasses != null){ |
| Map<Object, CoreAttributeGroup> allGroups = new HashMap<>(); |
| this.subClasses = new HashSet<>(); |
| for (CoreAttributeGroup subClass : allsubclasses.values()){ |
| subClass.convertClassNamesToClasses(classLoader); |
| allGroups.put(subClass.getType(), subClass); |
| } |
| this.allsubclasses = allGroups; |
| for (CoreAttributeGroup subClass : allsubclasses.values()){ |
| if (CoreAttributeItem.orderInheritance(subClass, allGroups)){ |
| this.insertSubClass(subClass); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this != obj) { |
| if (obj == null) { |
| return false; |
| } |
| CoreAttributeGroup anotherGroup = null; |
| try { |
| anotherGroup = (CoreAttributeGroup) obj; |
| } catch (ClassCastException cce) { |
| return false; |
| } |
| if (hasItems()) { |
| if (anotherGroup.hasItems()) { |
| if (!getItems().equals(anotherGroup.getItems())){ |
| return false; |
| } |
| } else { |
| return false; |
| } |
| } else { |
| if (anotherGroup.hasItems()) { |
| return false; |
| } |
| } |
| if (this.superClassGroup != null){ |
| if (anotherGroup.superClassGroup != null){ |
| return this.superClassGroup.equals(anotherGroup.superClassGroup); |
| }else{ |
| return false; |
| } |
| }else{ |
| if (anotherGroup.superClassGroup != null){ |
| return false; |
| } |
| return true; |
| } |
| } else { |
| return true; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = superClassGroup != null ? superClassGroup.hashCode() : 0; |
| for (String attribute : getItems().keySet()) { |
| // avoid processing values in getItems map to avoid infinite recursion |
| // as ATTRIBUTE_ITEM.hashCode() calls group.hashCode() |
| result = 31 * result + attribute.hashCode(); |
| } |
| return 31 * result; |
| } |
| |
| public CoreAttributeGroup findGroup(DESCRIPTOR type){ |
| if (this.type == null || this.type.equals(type.getJavaClass())){ |
| return this; |
| } |
| if (this.hasInheritance()){ |
| CoreAttributeGroup result = getSubClassGroups().get(type.getJavaClass()); |
| while (result == null && type.getInheritancePolicy().getParentDescriptor() != null){ |
| type = (DESCRIPTOR) type.getInheritancePolicy().getParentDescriptor(); |
| result = getSubClassGroups().get(type.getJavaClass()); |
| } |
| if (result != null){ |
| return result; |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public Map<String, ATTRIBUTE_ITEM> getAllItems() { |
| Map<String, ATTRIBUTE_ITEM> allItems = new HashMap<>(); |
| if (this.superClassGroup != null){ |
| allItems.putAll(this.superClassGroup.getAllItems()); |
| } |
| allItems.putAll(getItems()); |
| return allItems; |
| } |
| |
| public Set<String> getAttributeNames() { |
| Set<String> attributes = new HashSet<>(); |
| |
| if (this.superClassGroup != null && this.superClassGroup != this){ |
| attributes.addAll(this.superClassGroup.getAttributeNames()); |
| } |
| attributes.addAll(getItems().keySet()); |
| return attributes; |
| } |
| |
| /** |
| * Returns AttributeGroup corresponding to the passed (possibly nested) |
| * attribute. |
| */ |
| public CoreAttributeGroup getGroup(String attributeNameOrPath) { |
| CoreAttributeItem item = getItem(CoreAttributeConverter.convert(attributeNameOrPath), false); |
| if (item != null) { |
| return item.getGroup(); |
| } |
| if (hasInheritance()){ |
| return this.superClassGroup.getGroup(attributeNameOrPath); |
| } |
| return null; |
| } |
| |
| /** |
| * INTERNAL: |
| * Lookup the {@link org.eclipse.persistence.internal.queries.AttributeItem AttributeItem} for the provided attribute name or path. |
| * |
| * @return item or null |
| * @throws IllegalArgumentException if name is not valid attribute name or path |
| */ |
| public ATTRIBUTE_ITEM getItem(String attributeNameOrPath) { |
| return getItem(CoreAttributeConverter.convert(attributeNameOrPath), false); |
| } |
| |
| /** |
| * Locate the AttributeGroup where the leaf attribute in the path should be |
| * applied to. |
| * |
| * @param create |
| * indicates if intermediate AttributeGroup required within the |
| * specified path should be created as needed. When checking the |
| * state of the map callers should set this to false to avoid |
| * changing the state unexpectedly |
| */ |
| protected ATTRIBUTE_ITEM getItem(String[] attributePath, boolean create) { |
| ATTRIBUTE_ITEM item = null; |
| CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> currentGroup = this; |
| |
| for (int index = 0; index < attributePath.length; index++) { |
| String attrName = attributePath[index]; |
| |
| item = currentGroup.getItems().get(attrName); |
| |
| // Add missing AttributeGroup |
| if (item == null) { |
| // If not creating missing AttributeGroups then return null |
| if (!create) { |
| if (this.superClassGroup != null){ |
| return (ATTRIBUTE_ITEM)this.superClassGroup.getItem(attributePath, create); |
| } |
| return null; |
| } |
| |
| item = (ATTRIBUTE_ITEM)newItem(currentGroup, attrName); |
| currentGroup.getItems().put(attrName, item); |
| } |
| |
| // Add a AttributeGroup if not at the end of the attributes path |
| if (item.getGroup() == null && index < (attributePath.length - 1)) { |
| if (!create) { |
| return null; |
| } |
| //XXX-dclarke: Converting the attribute[] into a string and then re-parsing it seems odd |
| CoreAttributeGroup newGroup = newGroup(attrName, currentGroup); |
| item.setRootGroup(newGroup); |
| } |
| |
| currentGroup = item.getGroup(); |
| } |
| |
| return item; |
| } |
| |
| /** |
| * INTERNAL: |
| * @return Non-null Map of attributes in the group mapped to their AttributeItems |
| */ |
| public Map<String, ATTRIBUTE_ITEM> getItems() { |
| if (this.items == null) { |
| this.items = new HashMap(); |
| } |
| return this.items; |
| } |
| |
| public String getName() { |
| return this.name; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public Map<Object, CoreAttributeGroup> getSubClassGroups(){ |
| if (this.allsubclasses == null){ |
| this.allsubclasses = new HashMap<>(); |
| } |
| return this.allsubclasses; |
| } |
| |
| public Class getType() { |
| return type; |
| } |
| |
| /** |
| * INTERNAL: |
| * Returns the name of the type this group represents |
| */ |
| public String getTypeName() { |
| return typeName; |
| } |
| |
| /** |
| * Indicates whether this group is part of an inheritance hierarchy |
| */ |
| public boolean hasInheritance(){ |
| return (this.subClasses != null && !this.subClasses.isEmpty()) || (this.superClassGroup != null); |
| } |
| |
| /** |
| * Indicates whether the group has at least one attribute. |
| */ |
| public boolean hasItems() { |
| return this.items != null && !this.items.isEmpty(); |
| } |
| |
| /** |
| * INTERNAL: |
| * This method will insert the group into the entity hierarchy just below this AttributeGroup. |
| */ |
| public void insertSubClass(CoreAttributeGroup group){ |
| if (this == group){ |
| return; |
| } |
| group.superClassGroup = this; |
| if (subClasses != null){ |
| for (Iterator<CoreAttributeGroup> subClasses = this.subClasses.iterator(); subClasses.hasNext();){ |
| CoreAttributeGroup subClass = subClasses.next(); |
| if (group != subClass && group.getType().isAssignableFrom(subClass.getType())){ |
| group.subClasses.add(subClass); |
| subClass.superClassGroup = group; |
| subClasses.remove(); |
| } |
| } |
| }else{ |
| this.subClasses = new HashSet<>(); |
| } |
| this.subClasses.add(group); |
| } |
| |
| /** |
| * INTERNAL: |
| * Only LoadGroups allow concurrency. |
| */ |
| public boolean isConcurrent() { |
| return false; |
| } |
| |
| /** |
| * INTERNAL: |
| * This method is used internally when converting to a copy group. |
| */ |
| public boolean isCopyGroup() { |
| return false; |
| } |
| |
| public boolean isFetchGroup() { |
| return false; |
| } |
| |
| public boolean isLoadGroup() { |
| return false; |
| } |
| |
| /** |
| * Return true if this AttributeGroup is a super-set of the passed in |
| * AttributeGroup. |
| */ |
| public boolean isSupersetOf(CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> anotherGroup) { |
| // TODO: should handle the case when the current group has all |
| // attributes - then its equivalent to null |
| if (anotherGroup == null) { |
| return false; |
| } |
| if (anotherGroup != this) { |
| if (hasItems()) { |
| if (anotherGroup.hasItems()) { |
| Iterator<Map.Entry<String, ATTRIBUTE_ITEM>> otherItemEntries = anotherGroup.getItems().entrySet().iterator(); |
| while (otherItemEntries.hasNext()) { |
| Map.Entry<String, ATTRIBUTE_ITEM> otherItemEntry = otherItemEntries.next(); |
| String otherAttributeName = otherItemEntry.getKey(); |
| CoreAttributeItem item = this.items.get(otherAttributeName); |
| if (item == null) { |
| return false; |
| } |
| CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> group = item.getGroup(); |
| CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> otherGroup = otherItemEntry.getValue().getGroup(); |
| if (group != null) { |
| if (!group.isSupersetOf(otherGroup)) { |
| return false; |
| } |
| } else { |
| if (otherGroup != null) { |
| return true; |
| } |
| } |
| group = item.getKeyGroup(); |
| otherGroup = otherItemEntry.getValue().getKeyGroup(); |
| if (group != null) { |
| if (!group.isSupersetOf(otherGroup)) { |
| return false; |
| } |
| } else { |
| if (otherGroup != null) { |
| return true; |
| } |
| } |
| if (item.getGroups() != null){ |
| if (otherItemEntry.getValue().getGroups() == null){ |
| return true; |
| } |
| for (Object next : item.getGroups().values()){ |
| CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> element = (CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>)next; |
| CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR> otherElement = (CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>)otherItemEntry.getValue().getGroups().get(element.getType()); |
| if (!element.isSupersetOf(otherElement)) { |
| return false; |
| } |
| } |
| } |
| if (item.getKeyGroups() != null){ |
| if (otherItemEntry.getValue().getKeyGroups() == null){ |
| return true; |
| } |
| for (Object next : item.getKeyGroups().values()){ |
| CoreAttributeGroup element = (CoreAttributeGroup)next; |
| CoreAttributeGroup otherElement = (CoreAttributeGroup)otherItemEntry.getValue().getKeyGroups().get(element.getType()); |
| if (!element.isSupersetOf(otherElement)) { |
| return false; |
| } |
| } |
| } |
| } |
| return true; |
| } else { |
| return true; |
| } |
| } else { |
| if (anotherGroup.hasItems()) { |
| return false; |
| } else { |
| return true; |
| } |
| } |
| } else { |
| return true; |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * @return the isValidated |
| */ |
| public boolean isValidated() { |
| return isValidated; |
| } |
| |
| /** |
| * Subclass may create different types. |
| */ |
| protected CoreAttributeGroup newGroup(String name, CoreAttributeGroup parent) { |
| return new CoreAttributeGroup<ATTRIBUTE_ITEM, DESCRIPTOR>(name); |
| } |
| |
| /** |
| * Subclass may create different types. |
| */ |
| protected CoreAttributeItem newItem(CoreAttributeGroup group, String attrName) { |
| return new CoreAttributeItem(group, attrName); |
| } |
| |
| /** |
| * Remove an attribute from the group. |
| */ |
| public void removeAttribute(String attributeNameOrPath) { |
| CoreAttributeItem item = getItem(attributeNameOrPath); |
| if (item != null) { |
| item.getParent().getItems().remove(item.getAttributeName()); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * |
| */ |
| public void setAllSubclasses(Map<Object, CoreAttributeGroup> subclasses){ |
| this.allsubclasses = subclasses; |
| } |
| |
| // XXX-dclarke: Should this be public? |
| public void setAttributeNames(Set attributeNames) { |
| Iterator it = attributeNames.iterator(); |
| while (it.hasNext()) { |
| this.addAttribute((String) it.next()); |
| } |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| //changed for EclipseLink 415779 to avoid stack overflows when using graphs with circular references |
| @Override |
| public String toString() { |
| String className = StringHelper.nonNullString(getClass().getSimpleName()); |
| String name = StringHelper.nonNullString(getName()); |
| if (toStringLoopCount >1) { |
| return className+StringHelper.LEFT_BRACKET+name+ " Loop detected "+ StringHelper.RIGHT_BRACKET; |
| } |
| try { |
| toStringLoopCount++; |
| String items = StringHelper.nonNullString(toStringItems()); |
| String additionalInfo = StringHelper.nonNullString(toStringAdditionalInfo()); |
| StringBuilder str = new StringBuilder(className.length() + name.length() |
| + additionalInfo.length() + items.length() + 4); |
| str.append(className); |
| str.append(StringHelper.LEFT_BRACKET).append(name).append(StringHelper.RIGHT_BRACKET); |
| str.append(additionalInfo); |
| str.append(StringHelper.LEFT_BRACE).append(items).append(StringHelper.RIGHT_BRACE); |
| return str.toString(); |
| } finally { |
| toStringLoopCount--; |
| } |
| } |
| |
| /** |
| * Used by toString to print additional info for derived classes. |
| */ |
| protected String toStringAdditionalInfo() { |
| return ""; |
| } |
| |
| /** |
| * Used by toString to print attribute items. |
| */ |
| protected String toStringItems() { |
| // Calculate name length to avoid StringBuilder resizing |
| int length = 0; |
| String superClassGroupItems; |
| if (this.superClassGroup != null) { |
| superClassGroupItems = this.superClassGroup.toStringItems(); |
| length += FIELD_SEP.length(); |
| length += superClassGroupItems.length(); |
| } else { |
| superClassGroupItems = null; |
| } |
| Collection<ATTRIBUTE_ITEM> values = null; |
| if (this.items != null) { |
| values = this.items.values(); |
| length += (values != null && values.size() > 0 |
| ? (values.size() - 1) * FIELD_SEP.length() : 0); |
| if (values != null) { |
| for (Iterator<ATTRIBUTE_ITEM> it = values.iterator(); it.hasNext();) { |
| length += it.next().toStringNoClassName().length(); |
| } |
| } |
| } |
| // Build string to be returned |
| StringBuilder str = new StringBuilder(length > 0 ? length : 0); |
| if (values != null) { |
| for (Iterator<ATTRIBUTE_ITEM> it = values.iterator(); it.hasNext();) { |
| str.append(it.next().toStringNoClassName()); |
| if (it.hasNext()) { |
| str.append(FIELD_SEP); |
| } |
| } |
| } |
| if (this.superClassGroup != null) { |
| str.append(FIELD_SEP); |
| str.append(superClassGroupItems); |
| } |
| return str.toString(); |
| } |
| |
| static protected String toStringPath(String[] attributePath, int position) { |
| StringWriter writer = new StringWriter(); |
| for (int index = 0; index <= position; index++) { |
| writer.write(attributePath[index]); |
| if (index < position) { |
| writer.write("."); |
| } |
| } |
| return writer.toString(); |
| } |
| } |
