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org.apache.cxf.staxutils.PrettyPrintXMLStreamWriter Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.staxutils;
import java.util.Stack;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
public class PrettyPrintXMLStreamWriter implements XMLStreamWriter {
static final int DEFAULT_INDENT_LEVEL = 2;
XMLStreamWriter baseWriter;
int curIndent;
int indentAmount = DEFAULT_INDENT_LEVEL;
Stack elems = new Stack();
public PrettyPrintXMLStreamWriter(XMLStreamWriter writer,
int indentAmount) {
this(writer, indentAmount, 0);
}
public PrettyPrintXMLStreamWriter(XMLStreamWriter writer,
int indentAmount,
int initialLevel) {
baseWriter = writer;
curIndent = initialLevel;
this.indentAmount = indentAmount;
}
public void writeSpaces() throws XMLStreamException {
for (int i = 0; i < curIndent; i++) {
baseWriter.writeCharacters(" ");
}
}
public void indentWithSpaces() throws XMLStreamException {
writeSpaces();
indent();
}
public void indent() {
curIndent += indentAmount;
}
public void unindent() {
curIndent -= indentAmount;
}
public void close() throws XMLStreamException {
baseWriter.close();
}
public void flush() throws XMLStreamException {
baseWriter.flush();
}
public NamespaceContext getNamespaceContext() {
return baseWriter.getNamespaceContext();
}
public java.lang.String getPrefix(java.lang.String uri) throws XMLStreamException {
return baseWriter.getPrefix(uri);
}
public java.lang.Object getProperty(java.lang.String name) throws IllegalArgumentException {
return baseWriter.getProperty(name);
}
public void setDefaultNamespace(java.lang.String uri) throws XMLStreamException {
baseWriter.setDefaultNamespace(uri);
}
public void setNamespaceContext(NamespaceContext context) throws XMLStreamException {
baseWriter.setNamespaceContext(context);
}
public void setPrefix(java.lang.String prefix, java.lang.String uri)
throws XMLStreamException {
baseWriter.setPrefix(prefix, uri);
}
public void writeAttribute(java.lang.String localName, java.lang.String value)
throws XMLStreamException {
baseWriter.writeAttribute(localName, value);
}
public void writeAttribute(java.lang.String namespaceURI,
java.lang.String localName,
java.lang.String value) throws XMLStreamException {
baseWriter.writeAttribute(namespaceURI, localName, value);
}
public void writeAttribute(java.lang.String prefix,
java.lang.String namespaceURI,
java.lang.String localName,
java.lang.String value) throws XMLStreamException {
baseWriter.writeAttribute(prefix, namespaceURI, localName, value);
}
public void writeCData(java.lang.String data) throws XMLStreamException {
baseWriter.writeCData(data);
}
public void writeCharacters(char[] text, int start, int len) throws XMLStreamException {
baseWriter.writeCharacters(text, start, len);
}
public void writeCharacters(java.lang.String text) throws XMLStreamException {
baseWriter.writeCharacters(text);
}
public void writeComment(java.lang.String data) throws XMLStreamException {
baseWriter.writeComment(data);
}
public void writeDefaultNamespace(java.lang.String namespaceURI) throws XMLStreamException {
baseWriter.writeDefaultNamespace(namespaceURI);
}
public void writeDTD(java.lang.String dtd) throws XMLStreamException {
baseWriter.writeDTD(dtd);
}
public void writeEmptyElement(java.lang.String localName) throws XMLStreamException {
baseWriter.writeEmptyElement(localName);
}
public void writeEmptyElement(java.lang.String namespaceURI, java.lang.String localName)
throws XMLStreamException {
baseWriter.writeEmptyElement(localName, namespaceURI);
}
public void writeEmptyElement(java.lang.String prefix,
java.lang.String localName,
java.lang.String namespaceURI) throws XMLStreamException {
baseWriter.writeEmptyElement(prefix, localName, namespaceURI);
}
public void writeEndDocument() throws XMLStreamException {
baseWriter.writeEndDocument();
}
public void writeEndElement() throws XMLStreamException {
CurrentElement elem = elems.pop();
unindent();
if (elem.hasChildElements()) {
baseWriter.writeCharacters("\n");
writeSpaces();
}
baseWriter.writeEndElement();
if (elems.empty()) {
baseWriter.writeCharacters("\n");
}
}
public void writeEntityRef(java.lang.String name) throws XMLStreamException {
baseWriter.writeEntityRef(name);
}
public void writeNamespace(java.lang.String prefix, java.lang.String namespaceURI)
throws XMLStreamException {
baseWriter.writeNamespace(prefix, namespaceURI);
}
public void writeProcessingInstruction(java.lang.String target)
throws XMLStreamException {
baseWriter.writeProcessingInstruction(target);
}
public void writeProcessingInstruction(java.lang.String target, java.lang.String data)
throws XMLStreamException {
baseWriter.writeProcessingInstruction(target, data);
}
public void writeStartDocument() throws XMLStreamException {
baseWriter.writeStartDocument();
}
public void writeStartDocument(java.lang.String version) throws XMLStreamException {
baseWriter.writeStartDocument(version);
}
public void writeStartDocument(java.lang.String encoding, java.lang.String version)
throws XMLStreamException {
baseWriter.writeStartDocument(encoding, version);
}
public void writeStartElement(java.lang.String localName) throws XMLStreamException {
writeStartElement(null, localName, null);
}
public void writeStartElement(java.lang.String namespaceURI, java.lang.String localName)
throws XMLStreamException {
writeStartElement(null, localName, namespaceURI);
}
public void writeStartElement(java.lang.String prefix,
java.lang.String localName,
java.lang.String namespaceURI) throws XMLStreamException {
QName currElemName = new QName(namespaceURI, localName);
if (elems.empty()) {
indentWithSpaces();
} else {
baseWriter.writeCharacters("");
baseWriter.writeCharacters("\n");
indentWithSpaces();
CurrentElement elem = elems.peek();
elem.setChildElements(true);
}
if (prefix == null && namespaceURI == null) {
baseWriter.writeStartElement(localName);
} else if (prefix == null) {
baseWriter.writeStartElement(namespaceURI, localName);
} else {
baseWriter.writeStartElement(prefix, localName, namespaceURI);
}
elems.push(new CurrentElement(currElemName));
}
class CurrentElement {
private QName name;
private boolean hasChildElements;
CurrentElement(QName qname) {
name = qname;
}
public QName getQName() {
return name;
}
public boolean hasChildElements() {
return hasChildElements;
}
public void setChildElements(boolean childElements) {
hasChildElements = childElements;
}
}
}
