/*******************************************************************************
* Copyright (c) 2001, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
* David Carver (STAR) - bug 296999 - Inefficient use of new String()
*******************************************************************************/
package org.eclipse.wst.xml.core.internal.document;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.w3c.dom.CharacterData;
import org.w3c.dom.DOMException;
import org.w3c.dom.Node;
/**
* CharacterDataImpl class
*/
public abstract class CharacterDataImpl extends NodeImpl implements CharacterData {
private char[] data = null;
/**
* CharacterDataImpl constructor
*/
protected CharacterDataImpl() {
super();
}
/**
* CharacterDataImpl constructor
*
* @param that
* CharacterDataImpl
*/
protected CharacterDataImpl(CharacterDataImpl that) {
super(that);
if (that != null) {
this.data = that.getData().toCharArray();
}
}
/**
* appendData method
*
* @param arg
* java.lang.String
*/
public void appendData(String arg) throws DOMException {
if (arg == null)
return;
String data = getData();
if (data == null)
data = arg;
else
data += arg;
setData(data);
}
/**
* deleteData method
*
* @param offset
* int
* @param count
* int
*/
public void deleteData(int offset, int count) throws DOMException {
if (count == 0)
return;
if (!isDataEditable()) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, DOMMessages.NO_MODIFICATION_ALLOWED_ERR);
}
if (count < 0 || offset < 0) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
String data = getData();
if (data == null) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
int length = data.length();
if (offset > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (offset == 0) {
if (count > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (count == length)
data = NodeImpl.EMPTY_STRING;
else
data = data.substring(count);
} else {
int end = offset + count;
if (end > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (end == length)
data = data.substring(0, offset);
else
data = data.substring(0, offset) + data.substring(end);
}
setData(data);
}
/**
*/
protected final char[] getCharacterData() {
return this.data;
}
/**
* getData method
*
* @return java.lang.String
*/
public String getData() throws DOMException {
char[] cdata = getCharacterData();
if (cdata != null)
return new String(cdata);
return null;
}
/**
* getLength method
*
* @return int
*/
public int getLength() {
String data = getData();
if (data == null)
return 0;
return data.length();
}
/**
* getNodeValue method
*
* @return java.lang.String
*/
public String getNodeValue() {
return getData();
}
/**
* insertData method
*
* @param offset
* int
* @param arg
* java.lang.String
*/
public void insertData(int offset, String arg) throws DOMException {
if (arg == null)
return;
if (!isDataEditable()) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, DOMMessages.NO_MODIFICATION_ALLOWED_ERR);
}
if (offset < 0) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
String data = getData();
if (data == null) {
if (offset > 0) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
data = arg;
} else if (offset == 0) {
data = arg + data;
} else {
int length = data.length();
if (offset > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (offset == length)
data += arg;
else
data = data.substring(0, offset) + arg + data.substring(offset);
}
setData(data);
}
/**
* isJSPContent method
*
* @return boolean
*/
public boolean isJSPContent() {
Node parent = getParentNode();
if (parent == null || parent.getNodeType() != Node.ELEMENT_NODE)
return false;
ElementImpl element = (ElementImpl) parent;
return element.isJSPContainer();
}
/**
* replaceData method
*
* @param offset
* int
* @param count
* int
* @param arg
* java.lang.String
*/
public void replaceData(int offset, int count, String arg) throws DOMException {
if (!isDataEditable()) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, DOMMessages.NO_MODIFICATION_ALLOWED_ERR);
}
if (arg == null) {
deleteData(offset, count);
return;
}
if (count == 0) {
insertData(offset, arg);
return;
}
if (offset < 0 || count < 0) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
String data = getData();
if (data == null) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
} else if (offset == 0) {
int length = data.length();
if (count > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (count == length)
data = arg;
else
data = arg + data.substring(count);
} else {
int length = data.length();
int end = offset + count;
if (end > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
if (end == length)
data = data.substring(0, offset) + arg;
else
data = data.substring(0, offset) + arg + data.substring(end);
}
setData(data);
}
/**
*/
void resetStructuredDocumentRegions() {
this.data = getData().toCharArray();
setStructuredDocumentRegion(null);
}
/**
* setData method
*
* @param data
* java.lang.String
*/
public void setData(String data) throws DOMException {
if (!isDataEditable()) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, DOMMessages.NO_MODIFICATION_ALLOWED_ERR);
}
this.data = (data != null ? data.toCharArray() : null);
notifyValueChanged();
}
/**
* setNodeValue method
*
* @param nodeValue
* java.lang.String
*/
public void setNodeValue(String nodeValue) throws DOMException {
setData(nodeValue);
}
/**
*/
void setStructuredDocumentRegion(IStructuredDocumentRegion flatNode) {
super.setStructuredDocumentRegion(flatNode);
if (flatNode != null)
this.data = null;
}
/**
* substringData method
*
* @return java.lang.String
* @param offset
* int
* @param count
* int
*/
public String substringData(int offset, int count) throws DOMException {
if (count == 0)
return NodeImpl.EMPTY_STRING;
if (offset < 0 || count < 0) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
String data = getData();
if (data == null) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
int length = data.length();
if (offset == 0 && count == length)
return data;
if (offset > length) {
throw new DOMException(DOMException.INDEX_SIZE_ERR, DOMMessages.INDEX_SIZE_ERR);
}
int end = offset + count;
if (end > length) {
// no DOMException specified to be thrown
end = length;
}
return data.substring(offset, end);
}
/**
* toString method
*
* @return java.lang.String
*/
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(getNodeName());
buffer.append('(');
buffer.append(getData());
buffer.append(')');
IStructuredDocumentRegion flatNode = getStructuredDocumentRegion();
if (flatNode != null) {
buffer.append('@');
buffer.append(flatNode.toString());
}
return buffer.toString();
}
}