/*
* 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.axiom.om.ds;
import org.apache.axiom.om.OMDataSourceExt;
import org.apache.axiom.om.OMOutputFormat;
import org.apache.axiom.om.util.StAXUtils;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import java.io.CharArrayReader;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
/**
* CharArrayDataSource is an example implementation of OMDataSourceExt.
* Use it to insert a char[] into an OM Tree.
* This data source is useful for placing characters into an OM
* tree, instead of having a deeply nested tree.
*/
public class CharArrayDataSource extends OMDataSourceExtBase {
char[] chars = null;
/**
* Constructor
* @param chars
*/
public CharArrayDataSource(char[] chars) {
this.chars = chars;
}
public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException {
try {
writer.write(chars);
} catch (UnsupportedEncodingException e) {
throw new XMLStreamException(e);
} catch (IOException e) {
throw new XMLStreamException(e);
}
}
public XMLStreamReader getReader() throws XMLStreamException {
CharArrayReader reader = new CharArrayReader(chars);
return StAXUtils.createXMLStreamReader(reader);
}
public Object getObject() {
return chars;
}
public boolean isDestructiveRead() {
// Reading chars is not destructive
return false;
}
public boolean isDestructiveWrite() {
// Writing chars is not destructive
return false;
}
public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
String text = new String(chars);
return text.getBytes(encoding);
}
public void close() {
chars = null;
}
public OMDataSourceExt copy() {
// Return shallow copy
return new CharArrayDataSource(chars);
}
}