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The NeoDatis Object Database
/*
NeoDatis ODB : Native Object Database ([email protected])
Copyright (C) 2007 NeoDatis Inc. http://www.neodatis.org
"This file is part of the NeoDatis ODB open source object database".
NeoDatis ODB is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
NeoDatis ODB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.neodatis.odb.gui;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.neodatis.odb.core.layers.layer2.meta.ClassAttributeInfo;
import org.neodatis.odb.core.layers.layer2.meta.ClassInfo;
import org.neodatis.odb.core.layers.layer2.meta.NonNativeNullObjectInfo;
import org.neodatis.odb.core.layers.layer2.meta.NonNativeObjectInfo;
import org.neodatis.odb.core.layers.layer2.meta.NullNativeObjectInfo;
import org.neodatis.odb.core.layers.layer2.meta.ODBType;
import org.neodatis.tool.wrappers.map.OdbHashMap;
/**
* Used to transform meta meta representations of object into table view. Used
* by ODBExplorer.
*
* @author osmadja
*
*/
public class ObjectInfoUtil {
public static List buildAttributeNameList(ClassInfo ci) {
return buildAttributeNameList(null, ci, null, null);
}
private static List buildAttributeNameList(String attributeName, ClassInfo ci, String base, Map objectsAlreadyVisited) {
List result = new ArrayList();
boolean firstTime = objectsAlreadyVisited == null;
if (objectsAlreadyVisited == null) {
objectsAlreadyVisited = new OdbHashMap();
}
String baseClassName = null;
if (base == null) {
baseClassName = "";
} else {
if (base.length() == 0) {
baseClassName = attributeName;
} else {
baseClassName = base + "." + attributeName;
}
}
for (int i = 0; i < ci.getAttributes().size(); i++) {
ClassAttributeInfo cai = ci.getAttributeInfo(i);
if (objectsAlreadyVisited.get(cai) != null && !cai.getAttributeType().isNative()) {
result.add("<-");
continue;
}
objectsAlreadyVisited.put(cai, cai);
if (cai.getAttributeType().isNative()) {
String localAttributeName = (baseClassName.length() == 0 ? "" : baseClassName + ".") + cai.getName();
result.add(localAttributeName);
} else {
result.addAll(buildAttributeNameList(cai.getName(), cai.getClassInfo(), baseClassName, objectsAlreadyVisited));
}
}
return result;
}
private static List buildAttributeTypeList(ClassInfo ci, String base, Map objectsAlreadyVisited) {
List result = new ArrayList();
boolean firstTime = objectsAlreadyVisited == null;
if (objectsAlreadyVisited == null) {
objectsAlreadyVisited = new OdbHashMap();
}
String baseClassName = null;
if (base == null) {
baseClassName = "";
} else {
if (base.length() == 0) {
baseClassName = ci.getFullClassName();
} else {
baseClassName = base + "." + ci.getFullClassName().toLowerCase();
}
}
for (int i = 0; i < ci.getAttributes().size(); i++) {
ClassAttributeInfo cai = ci.getAttributeInfo(i);
if (objectsAlreadyVisited.get(cai) != null) {
// result.add("<-");
continue;
}
objectsAlreadyVisited.put(cai, cai);
if (cai.getAttributeType().isNative()) {
String attributeName = (baseClassName.length() == 0 ? "" : baseClassName + ".") + cai.getName();
result.add(attributeName);
} else {
result.addAll(buildAttributeNameList(cai.getName(), cai.getClassInfo(), baseClassName, objectsAlreadyVisited));
}
}
return result;
}
public static List buildValueList(ClassInfo ci, Collection list) {
return buildValueList(ci, list, null);
}
private static List buildValueList(ClassInfo ci, Collection list, Map objectsAlreadyVisited) {
List result = new ArrayList();
List oneLine = null;
int nbLines = list.size();
boolean firstTime = objectsAlreadyVisited == null;
if (objectsAlreadyVisited == null) {
objectsAlreadyVisited = new OdbHashMap();
}
Map otherMap = null;
int i = 0;
Iterator iterator = list.iterator();
// For each line
while (iterator.hasNext()) {
if (firstTime) {
// Here this is the first call in the recursive stack, for each,
// we must reset the map of
// alreader read objects
objectsAlreadyVisited = new OdbHashMap();
}
Object element = iterator.next();
// If element is a non native object
if (element instanceof NonNativeObjectInfo) {
NonNativeObjectInfo nnoi = (NonNativeObjectInfo) element;
oneLine = new ArrayList();
if (nnoi == null || nnoi.isNull()) {
oneLine.addAll(nullNonNativeObject(ci, null));
continue;
}
// For each attribute of the non native object
for (int j = 0; j < nnoi.getAttributeValues().length; j++) {
Object object = nnoi.getAttributeValues()[j];
if (objectsAlreadyVisited.get(object) != null) {
oneLine.addAll(manageNullOrRecursiveObjectInfo(nnoi.getClassInfo().getAttributeInfo(j), "@"));
continue;
}
objectsAlreadyVisited.put(object, object);
if (object instanceof NonNativeObjectInfo) {
NonNativeObjectInfo oi = (NonNativeObjectInfo) object;
if (oi instanceof NonNativeNullObjectInfo) {
oneLine.addAll(nullNonNativeObject(ci, null));
} else {
if (oi.isDeletedObject()) {
oneLine.add("Deleted Object");
} else {
List l = Arrays.asList(oi.getAttributeValues());
otherMap = new OdbHashMap(objectsAlreadyVisited);
oneLine.addAll(buildValueList(oi.getClassInfo(), l, objectsAlreadyVisited));
}
}
} else {
if (object instanceof NonNativeNullObjectInfo) {
oneLine.addAll(manageNullOrRecursiveObjectInfo(nnoi.getClassInfo().getAttributeInfo(j), "null"));
} else {
if (object == null) {
oneLine.add(null);
} else {
ODBType type = ODBType.getFromClass(object.getClass());
if (type.isCollection()) {
Collection l = (Collection) object;
oneLine.add("[" + l.size() + "]:" + buildValueList(null, l, objectsAlreadyVisited));
} else {
oneLine.add(object);
}
}
}
}
}
if (firstTime) {
result.add(oneLine);
} else {
result.addAll(oneLine);
}
} else {
if (element != null) {
ODBType type = ODBType.getFromClass(element.getClass());
if (type.isCollection()) {
Collection l = (Collection) element;
result.add("[" + l.size() + "]:" + buildValueList(null, l, objectsAlreadyVisited));
} else {
if (element instanceof NonNativeNullObjectInfo) {
if (ci != null) {
result.addAll(manageNullOrRecursiveObjectInfo(ci.getAttributeInfo(i), "null"));
} else {
result.add(null);
}
} else {
result.add(element);
}
}
} else {
result.add(null);
}
}
i++;
}
return result;
}
private static Collection nullNonNativeObject(ClassInfo ci, Map alreadySet) {
ArrayList l = new ArrayList();
if (alreadySet == null) {
alreadySet = new OdbHashMap();
}
ClassAttributeInfo cai = null;
String attributeId = null;
for (int i = 0; i < ci.getNumberOfAttributes(); i++) {
cai = ci.getAttributeInfo(i);
if (cai.getAttributeType().isNative()) {
l.add("null");
} else {
attributeId = ci.getFullClassName() + "." + cai.getName();
if (alreadySet.get(attributeId) != null) {
l.add("<-");
} else {
alreadySet.put(attributeId, attributeId);
l.addAll(nullNonNativeObject(cai.getClassInfo(), alreadySet));
}
}
}
return l;
}
private static List manageNullOrRecursiveObjectInfo(ClassAttributeInfo cai, String item) {
List list = new ArrayList();
// the object is null
// get the type of the object
if (cai.getAttributeType().isNative()) {
list.add(new NullNativeObjectInfo(cai.getAttributeType()));
} else {
// The object is null and can have more than one attribute, we must
// insert
// one null per attribute for flat mode
int numberOfNullsToInsert = cai.getClassInfo().getAttributes().size();
for (int k = 0; k < numberOfNullsToInsert; k++) {
list.add(item);
}
}
return list;
}
}
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