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/**
* This file is part of the CRISTAL-iSE kernel.
* Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
*
* This library 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 3 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; with out 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* http://www.fsf.org/licensing/licenses/lgpl.html
*/
package org.cristalise.kernel.collection;
import org.cristalise.kernel.common.InvalidCollectionModification;
import org.cristalise.kernel.common.ObjectAlreadyExistsException;
import org.cristalise.kernel.common.ObjectNotFoundException;
import org.cristalise.kernel.lookup.ItemPath;
import org.cristalise.kernel.utils.CastorHashMap;
import org.cristalise.kernel.utils.KeyValuePair;
import org.cristalise.kernel.utils.Logger;
/**
* A Collection implementation that contains a variable number of members of the
* same type, like a variable-length array. CollectionMembers are created and
* destroyed as needed. A Dependency never contains empty slots, nor duplicated
* members.
*
* <p>ClassProps are stored at the collection level and duplicated in each slot.
* Slots may still have their own individual properties annotating their link.
*
* Predefined steps managing Dependencies:
*
* <ul>
* <li>
*/
public class Dependency extends Collection<DependencyMember>
{
protected CastorHashMap mProperties = new CastorHashMap();
protected String mClassProps = "";
public Dependency()
{
setName("Dependency");
}
public Dependency(String name)
{
setName(name);
}
public CastorHashMap getProperties() {
return mProperties;
}
public void setProperties(CastorHashMap props) {
mProperties = props;
}
public KeyValuePair[] getKeyValuePairs()
{
return mProperties.getKeyValuePairs();
}
public void setKeyValuePairs(KeyValuePair[] pairs)
{
mProperties.setKeyValuePairs(pairs);
}
public void setClassProps(String classProps) {
this.mClassProps = classProps;
}
public String getClassProps() {
return mClassProps;
}
public DependencyMember addMember(ItemPath itemPath) throws InvalidCollectionModification, ObjectAlreadyExistsException {
if (contains(itemPath)) throw new ObjectAlreadyExistsException("Item "+itemPath+" already exists in Dependency "+getName());
// create member object
DependencyMember depMember = new DependencyMember();
depMember.setID(getCounter());
depMember.setProperties((CastorHashMap)mProperties.clone());
depMember.setClassProps(mClassProps);
// assign entity
depMember.assignItem(itemPath);
mMembers.list.add(depMember);
Logger.msg(8, "Dependency::addMember(" + itemPath + ") added to children.");
return depMember;
}
@Override
public DependencyMember addMember(ItemPath itemPath, CastorHashMap props, String classProps)
throws InvalidCollectionModification, ObjectAlreadyExistsException
{
if (contains(itemPath)) throw new ObjectAlreadyExistsException("Item "+itemPath+" already exists in Dependency "+getName());
if (classProps != null && !classProps.equals(mClassProps))
throw new InvalidCollectionModification("Cannot change classProps in dependency member");
DependencyMember depMember = new DependencyMember();
depMember.setID(getCounter());
// merge props
CastorHashMap newProps = new CastorHashMap();
for (Object name : props.keySet()) {
String key = (String)name;
newProps.put(key, props.get(key));
}
// class props override local
for (Object name : mProperties.keySet()) {
String key = (String)name;
newProps.put(key, mProperties.get(key));
}
depMember.setProperties(newProps);
depMember.setClassProps(mClassProps);
// assign entity
depMember.assignItem(itemPath);
mMembers.list.add(depMember);
Logger.msg(8, "Dependency::addMember(" + itemPath + ") added to children.");
return depMember;
}
@Override
public void removeMember(int memberId) throws ObjectNotFoundException {
for (DependencyMember element : mMembers.list) {
if (element.getID() == memberId) {
mMembers.list.remove(element);
return;
}
}
throw new ObjectNotFoundException("Member "+memberId+" not found");
}
}
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