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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.data;
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import org.jbind.util.reflect.ReflectUtil;
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import org.jbind.xml.base.WhiteSpaceProcessing;
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import org.jbind.xml.core.base.ITextContentMemento;
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import org.jbind.xml.core.data.IAnySimpleTypeData;
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import org.jbind.xml.core.data.IDataVisitor;
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import org.jbind.xml.core.type.ISimpleType;
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import org.jbind.xml.msg.IConstraintViolations;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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import org.jbind.xml.schema.constraint.LocalCheckContext;
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public abstract class AbstractSimpleData extends AbstractData implements IAnySimpleTypeData {
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/**
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* <i>(optional)</i>. If the normalized value is not set then it is calculated
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* from the simple storage object of the data by calling the {@link
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* #getCanonicalForm_ getCanonicalForm_} method.
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*/
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private String myNormalizedValue = null;
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public final String getLexicalValue_() {
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return getImpl_().getTextContent();
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}
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public final String getNormalizedValue_() {
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String res = null;
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if (null != myNormalizedValue) {
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res = myNormalizedValue;
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} else {
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res = getCanonicalForm_();
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}
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return res;
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}
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public final String toString() {
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return getLexicalValue_();
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}
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public final void setLexicalValue_(String aValue) throws XmlException {
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String saveNormalizedValue = myNormalizedValue;
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ITextContentMemento saveTextContent = getImpl_().saveTextContent();
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Object simpleStorageObject = getSimpleStorageObject();
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getImpl_().setTextContent(aValue);
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try {
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acceptImpl_();
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IConstraintViolations violations = XmlMessages.constraintViolations();
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LocalCheckContext context = new LocalCheckContext(this, violations);
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getType_().checkConstraints(context);
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if (!violations.isEmpty()) {
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throw new XmlException(violations);
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}
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} catch (XmlException e) {
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// rollback
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myNormalizedValue = saveNormalizedValue;
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getImpl_().restoreTextContent(saveTextContent);
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setSimpleStorageObject(simpleStorageObject);
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throw e;
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}
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}
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public final void acceptImpl_() throws XmlException {
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String tc = getImpl_().getTextContent();
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if (null != tc) {
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WhiteSpaceProcessing wsp = getType_().getConstraints().getWhiteSpaceProcessing();
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String normalizedValue = (null != wsp) ? wsp.process(tc) : tc;
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doAccept(normalizedValue);
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} else {
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throw new XmlException(XmlMessages.missingSimpleData(getImpl_()));
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}
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}
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/**
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* Hook method that accepts the normalized value and converts it into a
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* corresponging internal representation (the so called simple storage object).
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* <p>
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* If an exception is raised during execution of the method then this data object
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* may be inconsistent. It is in the responsibility of the caller either to
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* rollback the changes or to discard this data object.
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*
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* @param aNormalizedValue <i>(required)</i>.
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* @throws XmlException Raised iff the string can not be converted
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* into the internal representation.
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*/
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protected void doAccept(String aNormalizedValue) throws XmlException {
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myNormalizedValue = aNormalizedValue;
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}
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protected abstract void setSimpleStorageObject(Object anObject);
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protected final IConstraintViolations completeSimpleStorageAssignment_() {
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IConstraintViolations violations = XmlMessages.constraintViolations();
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if (null == getSimpleStorageObject()) {
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violations.add(XmlMessages.triedToAssignNull(null));
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} else {
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String saveNormalizedValue = myNormalizedValue;
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ITextContentMemento saveTextContent = getImpl_().saveTextContent();
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myNormalizedValue = null;
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getImpl_().setTextContent(this);
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LocalCheckContext context = new LocalCheckContext(this, violations);
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getType_().checkConstraints(context);
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if (violations.isEmpty() && (null != getFixed_()) && !getFixed_().simpleStorageValueEquals(this)) {
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violations.add(XmlMessages.triedToChangeFixed(getFixed_(), getCanonicalForm_(), null));
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}
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if (!violations.isEmpty()) {
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// rollback the assignment
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myNormalizedValue = saveNormalizedValue;
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getImpl_().restoreTextContent(saveTextContent);
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}
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}
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return violations;
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}
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public String getTextContent_() {
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return getCanonicalForm_();
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}
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public final Object getObject() {
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return getSimpleStorageObject();
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}
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public final void setObject(Object aNewValue) throws XmlException {
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Object oldValue = getSimpleStorageObject();
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try {
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setSimpleStorageObject(aNewValue);
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} catch (ClassCastException e) {
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throw new XmlException(XmlMessages.invalidSimpleStorageType(aNewValue.getClass().getName(), ReflectUtil.getWrapperClass(((ISimpleType)getType_()).getSimpleStorageType()).getName(), null));
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}
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IConstraintViolations violations = completeSimpleStorageAssignment_();
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if (!violations.isEmpty()) {
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setSimpleStorageObject(oldValue);
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throw new XmlException(violations);
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}
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}
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protected void doAcceptStarts_(IDataVisitor aVisitor) {
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aVisitor.visitAnySimpleDataStarts(this);
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}
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protected void doAcceptEnds_(IDataVisitor aVisitor) {
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aVisitor.visitAnySimpleDataEnds(this);
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}
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}
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