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/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.xmlfilter;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamWriter;
import com.sun.istack.logging.Logger;
import static com.sun.xml.ws.xmlfilter.ProcessingStateChange.*;
/**
*
* @author Marek Potociar (marek.potociar at sun.com)
*/
public class PrivateElementFilteringStateMachine implements FilteringStateMachine {
private static final Logger LOGGER = Logger.getLogger(PrivateElementFilteringStateMachine.class);
private int depth; // indicates the depth in which we are currently nested in the element that should be filtered out
private boolean filteringOn; // indicates that currently processed elements will be filtered out.
private final QName[] filteredElements;
/** Creates a new instance of PrivateElementFilteringStateMachine */
public PrivateElementFilteringStateMachine(final QName... filteredElements) {
if (filteredElements == null) {
this.filteredElements = new QName[]{};
} else {
this.filteredElements = new QName[filteredElements.length];
System.arraycopy(filteredElements, 0, this.filteredElements, 0, filteredElements.length);
}
}
public ProcessingStateChange getStateChange(final Invocation invocation, final XMLStreamWriter writer) {
LOGGER.entering(invocation);
ProcessingStateChange resultingState = NO_CHANGE;
try {
switch (invocation.getMethodType()) {
case WRITE_START_ELEMENT:
if (filteringOn) {
depth++;
} else {
filteringOn = startFiltering(invocation, writer);
if (filteringOn) {
resultingState = START_FILTERING;
}
}
break;
case WRITE_END_ELEMENT:
if (filteringOn) {
if (depth == 0) {
filteringOn = false;
resultingState = STOP_FILTERING;
// return invocation.executeBatch(mirrorWriter);
} else {
depth--;
}
}
break;
case CLOSE:
if (filteringOn) {
filteringOn = false;
resultingState = STOP_FILTERING;
}
default:
break;
}
return resultingState;
} finally {
LOGGER.exiting(resultingState);
}
}
private boolean startFiltering(final Invocation invocation, final XMLStreamWriter writer) {
final QName elementName = XmlFilteringUtils.getElementNameToWrite(invocation, XmlFilteringUtils.getDefaultNamespaceURI(writer));
for (QName filteredElement : filteredElements) {
if (filteredElement.equals(elementName)) {
return true;
}
}
return false;
}
}