org.wildfly.client.config.ScopedXMLStreamReader Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2015 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.client.config;
import java.util.NoSuchElementException;
import javax.xml.stream.XMLStreamException;
/**
* @author David M. Lloyd
*/
final class ScopedXMLStreamReader extends AbstractDelegatingXMLStreamReader {
private int level;
ScopedXMLStreamReader(final boolean closeDelegate, final ConfigurationXMLStreamReader delegate) {
super(closeDelegate, delegate);
}
public boolean hasNext() throws ConfigXMLParseException {
try {
return level >= 0 && getDelegate().hasNext();
} catch (XMLStreamException e) {
throw ConfigXMLParseException.from(e);
}
}
public int next() throws ConfigXMLParseException {
if (! hasNext()) {
throw new NoSuchElementException();
}
final int next;
try {
next = getDelegate().next();
} catch (XMLStreamException e) {
throw ConfigXMLParseException.from(e);
}
switch (next) {
case START_ELEMENT: {
level ++;
break;
}
case END_ELEMENT: {
level --;
break;
}
}
return next;
}
}