/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.patching.metadata;
import static org.jboss.as.controller.parsing.ParseUtils.missingRequired;
import static org.jboss.as.controller.parsing.ParseUtils.requireNoContent;
import static org.jboss.as.controller.parsing.ParseUtils.unexpectedAttribute;
import static org.jboss.as.controller.parsing.ParseUtils.unexpectedElement;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jboss.staxmapper.XMLElementReader;
import org.jboss.staxmapper.XMLElementWriter;
import org.jboss.staxmapper.XMLExtendedStreamReader;
import org.jboss.staxmapper.XMLExtendedStreamWriter;
/**
* @author Emanuel Muckenhuber
*/
public class PatchBundleXml_1_0 implements XMLStreamConstants, XMLElementReader<PatchXml.Result<BundledPatch>>, XMLElementWriter<BundledPatch> {
enum Element {
PATCHES("patches"),
PATCH_ELEMENT("element"),
// default unknown element
UNKNOWN(null),
;
public final String name;
Element(String name) {
this.name = name;
}
static Map<String, Element> elements = new HashMap<String, Element>();
static {
for(Element element : Element.values()) {
if(element != UNKNOWN) {
elements.put(element.name, element);
}
}
}
static Element forName(String name) {
final Element element = elements.get(name);
return element == null ? UNKNOWN : element;
}
}
enum Attribute {
ID("id"),
PATH("path"),
// default unknown attribute
UNKNOWN(null);
private final String name;
Attribute(String name) {
this.name = name;
}
static Map<String, Attribute> attributes = new HashMap<String, Attribute>();
static {
for(Attribute attribute : Attribute.values()) {
if(attribute != UNKNOWN) {
attributes.put(attribute.name, attribute);
}
}
}
static Attribute forName(String name) {
final Attribute attribute = attributes.get(name);
return attribute == null ? UNKNOWN : attribute;
}
}
@Override
public void readElement(final XMLExtendedStreamReader reader, final PatchXml.Result<BundledPatch> result) throws XMLStreamException {
final List<BundledPatch.BundledPatchEntry> patches = new ArrayList<BundledPatch.BundledPatchEntry>();
while (reader.hasNext() && reader.nextTag() != END_ELEMENT) {
final String localName = reader.getLocalName();
final Element element = Element.forName(localName);
switch (element) {
case PATCH_ELEMENT:
parseElement(reader, patches);
break;
default:
throw unexpectedElement(reader);
}
}
result.setResult(new BundledPatch() {
@Override
public List<BundledPatchEntry> getPatches() {
return patches;
}
});
}
private void parseElement(XMLExtendedStreamReader reader, List<BundledPatch.BundledPatchEntry> patches) throws XMLStreamException {
String id = null;
String path = null;
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
final String value = reader.getAttributeValue(i);
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case ID:
id = value;
break;
case PATH:
path = value;
break;
default:
throw unexpectedAttribute(reader, i);
}
}
if (id == null) {
throw missingRequired(reader, Attribute.ID.name);
}
if (path == null) {
throw missingRequired(reader, Attribute.PATH.name);
}
//
requireNoContent(reader);
patches.add(new BundledPatch.BundledPatchEntry(id, path));
}
@Override
public void writeContent(XMLExtendedStreamWriter writer, BundledPatch bundledPatch) throws XMLStreamException {
writer.writeStartElement(Element.PATCHES.name);
writer.writeDefaultNamespace(PatchXml.Namespace.PATCH_BUNDLE_1_0.getNamespace());
for (final BundledPatch.BundledPatchEntry entry : bundledPatch.getPatches()) {
writer.writeEmptyElement(Element.PATCH_ELEMENT.name);
writer.writeAttribute(Attribute.ID.name, entry.getPatchId());
writer.writeAttribute(Attribute.PATH.name, entry.getPatchPath());
}
writer.writeEndElement();
}
}