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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.instance.use;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.jbind.xml.base.IHasLocation;
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import org.jbind.xml.core.content.IAllDesc;
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import org.jbind.xml.core.content.IElemUseState;
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import org.jbind.xml.core.content.IUseState;
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import org.jbind.xml.core.type.IAnyType;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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public class AllUseState extends GroupUseState {
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private Set mySet = null;
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public AllUseState(IAllDesc aContent, IUseState aParent) {
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super(aContent, aParent);
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}
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protected void doReset() {
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super.doReset();
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mySet = null;
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}
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public IElemUseState getNextUseState(String aNamespace, String aName, IAnyType anOverloadingType, IHasLocation aHasLocation) throws XmlException {
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IElemUseState res = null;
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boolean startedFromBeginning = false;
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while (((null != mySet) || mayIncrementUseCounter()) && (res == null) && !startedFromBeginning) {
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if (null == mySet) {
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mySet = new HashSet(31);
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for (Iterator i = iterUseStates(); i.hasNext(); ) {
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mySet.add(i.next());
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}
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startedFromBeginning = true;
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}
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for (Iterator i = mySet.iterator(); (res == null) && i.hasNext(); ) {
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IUseState us = (IUseState)i.next();
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res = us.getNextUseState(aNamespace, aName, anOverloadingType, aHasLocation);
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if (null != res) {
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i.remove();
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}
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}
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if (null != res) {
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if (startedFromBeginning) {
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incrementUseCounter();
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}
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} else {
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if (!startedFromBeginning) {
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doIsValidEnd(aHasLocation);
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}
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mySet = null;
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}
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if ((null != mySet) && mySet.isEmpty()) {
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// By setting the set to null the all use state is filled again
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// when this method is called the next time (if the use counter may
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// be incremented).
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mySet = null;
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}
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}
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return res;
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}
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protected void doIsValidEnd(IHasLocation aHasLocation) throws XmlException {
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if (null != mySet) {
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StringBuffer descriptions = new StringBuffer();
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for (Iterator i = mySet.iterator(); i.hasNext(); ) {
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IUseState us = (IUseState)i.next();
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if (!us.getContentDesc().isEmptiable()) {
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if (descriptions.length() > 0) {
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descriptions.append(", ");
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}
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descriptions.append(us.getContentDesc().getDesc());
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}
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}
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if (descriptions.length() > 0) {
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throw new XmlException(XmlMessages.cmAllGroupNotSatisfied(descriptions, getContentDesc().getLocation(), aHasLocation));
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}
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}
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}
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}
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