cucumber.table.xstream.ListOfObjectReader Maven / Gradle / Ivy
package cucumber.table.xstream;
import com.thoughtworks.xstream.converters.ErrorWriter;
import com.thoughtworks.xstream.io.AbstractReader;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* Generates XStream XML data from table rows that will create a List of objects. Example:
*
*
*
* Sid Vicious
* 1957-05-10 00:00:00.0 UTC
* 1000
*
*
* Frank Zappa
* 1940-12-21 00:00:00.0 UTC
* 3000
*
*
*
*/
public class ListOfObjectReader extends AbstractReader {
private final Type elementType;
private final List attributeNames;
private final Iterator> itemIterator;
private int depth = 0;
private Iterator attributeNameIterator;
private String attributeName;
private Iterator attributeValueIterator;
private String attributeValue;
public ListOfObjectReader(Type elementType, List attributeNames, List> items) {
this.elementType = elementType;
this.attributeNames = attributeNames;
this.itemIterator = items.iterator();
}
@Override
public boolean hasMoreChildren() {
switch (depth) {
case 0:
return itemIterator.hasNext();
case 1:
return attributeNameIterator.hasNext();
case 2:
return false;
default:
throw new IllegalStateException("Depth is " + depth);
}
}
@Override
public void moveDown() {
depth++;
switch (depth) {
case 1:
attributeNameIterator = attributeNames.iterator();
attributeValueIterator = itemIterator.next().iterator();
break;
case 2:
attributeName = attributeNameIterator.next();
attributeValue = attributeValueIterator.next();
break;
default:
throw new IllegalStateException("Depth is " + depth);
}
}
@Override
public void moveUp() {
depth--;
}
private Class getElementClass() {
return ((elementType instanceof Class) ? (Class) elementType :
(Class) ((ParameterizedType) elementType).getRawType());
}
@Override
public String getNodeName() {
switch (depth) {
case 0:
return "list";
case 1:
return getElementClass().getName();
case 2:
return attributeName;
default:
throw new IllegalStateException("Depth is " + depth);
}
}
@Override
public String getValue() {
return attributeValue;
}
@Override
public String getAttribute(String name) {
return null;
}
@Override
public String getAttribute(int index) {
throw new UnsupportedOperationException();
}
@Override
public int getAttributeCount() {
throw new UnsupportedOperationException();
}
@Override
public String getAttributeName(int index) {
throw new UnsupportedOperationException();
}
@Override
public Iterator getAttributeNames() {
return Collections.emptyList().iterator();
}
@Override
public void appendErrors(ErrorWriter errorWriter) {
}
@Override
public void close() {
throw new UnsupportedOperationException();
}
}