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/*
* 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.
*/
/* $Id$ */
package org.apache.fop.render.ps.extensions;
// FOP
import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.ValidationException;
import org.apache.fop.fo.extensions.ExtensionAttachment;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
/**
* Base class for the PostScript-specific extension elements.
*/
public abstract class AbstractPSExtensionObject extends FONode {
private PSSetupCode setupCode = new PSSetupCode();
/**
* @see org.apache.fop.fo.FONode#FONode(FONode)
*/
public AbstractPSExtensionObject(FONode parent) {
super(parent);
}
/**
* {@inheritDoc}
*/
protected void validateChildNode(Locator loc, String nsURI, String localName)
throws ValidationException {
if (FO_URI.equals(nsURI)) {
invalidChildError(loc, nsURI, localName);
}
}
/** {@inheritDoc} */
protected void addCharacters(char[] data, int start, int length,
PropertyList pList, Locator locator) {
if (setupCode.getContent() != null) {
StringBuffer sb = new StringBuffer(setupCode.getContent());
sb.append(data, start, length - start);
setupCode.setContent(sb.toString());
} else {
setupCode.setContent(new String(data, start, length - start));
}
}
/** {@inheritDoc} */
public String getNamespaceURI() {
return PSExtensionElementMapping.NAMESPACE;
}
/**{@inheritDoc} */
public String getNormalNamespacePrefix() {
return "fox";
}
/** {@inheritDoc} */
public void processNode(String elementName, Locator locator,
Attributes attlist, PropertyList propertyList)
throws FOPException {
String name = attlist.getValue("name");
if (name != null && name.length() > 0) {
setupCode.setName(name);
}
}
/** {@inheritDoc} */
protected void endOfNode() throws FOPException {
super.endOfNode();
String s = setupCode.getContent();
if (s == null || s.length() == 0) {
missingChildElementError("#PCDATA");
}
}
/** {@inheritDoc} */
public ExtensionAttachment getExtensionAttachment() {
return this.setupCode;
}
}
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