package org.docx4j.wml;
import java.util.ArrayList;
import javax.xml.bind.JAXBElement;
import org.jvnet.jaxb2_commons.ppp.Child;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Collection for P content; does 2 things above/beyond JAXB's default collection
* type (arrayList):
*
* 1. Sanity check common user errors adding the wrong stuff
*
* 2. Sets parent correctly
*
* See further http://stackoverflow.com/questions/7924079/what-is-the-default-list-implementation-in-jaxb2-and-how-do-i-change-it
*
*
* @author jharrop
*
* @param <E>
*
* @since 3.3.1
*/
public class ArrayListWml<E> extends ArrayList<E> {
private static Logger log = LoggerFactory.getLogger(ArrayListWml.class);
public ArrayListWml(Object p) {
this.parent = p;
}
private ArrayListWml() {}
private Object parent = null;
@Override
public boolean add(E e) {
if (parent==null) {
log.warn("null parent. how?");
if (log.isDebugEnabled()) {
log.debug("Null parent", new Throwable());
}
} else {
// Sanity check common user error
if (parent instanceof P) {
if (e instanceof Tbl) {
throw new RuntimeException("You can't add a table inside a paragraph; it should be a sibling");
} else if (e instanceof P) {
throw new RuntimeException("You can't nest a paragraph inside a paragraph.");
} else if (e instanceof Text) {
throw new RuntimeException("You can't add Text directly to a paragraph; add it to a run (R) and add that.");
}
}
if (parent instanceof R) {
if (e instanceof R) {
throw new RuntimeException("You can't nest a run inside a run");
} else if (e instanceof P) {
throw new RuntimeException("You can't nest a paragraph inside a run.");
} else if (e instanceof Tbl) {
throw new RuntimeException("You can't add a table inside a run.");
}
}
}
if (e instanceof JAXBElement /* workaround */) {
setParent( ((JAXBElement)e).getValue() );
} else {
setParent(e);
}
return super.add(e);
}
private void setParent(Object o) {
if (parent!=null
&& (o instanceof Child)) {
((Child)o).setParent(parent);
}
}
}