JMeter example source code file (ObjectTableModel.java)
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The JMeter ObjectTableModel.java source code
/*
* 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.jorphan.gui;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import javax.swing.event.TableModelEvent;
import javax.swing.table.DefaultTableModel;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.jorphan.reflect.Functor;
import org.apache.log.Logger;
/**
* The ObjectTableModel is a TableModel whose rows are objects;
* columns are defined as Functors on the object.
*/
public class ObjectTableModel extends DefaultTableModel {
private static final Logger log = LoggingManager.getLoggerForClass();
private static final long serialVersionUID = 240L;
private transient ArrayList<Object> objects = new ArrayList();
private transient List<String> headers = new ArrayList();
private transient ArrayList<Class classes = new ArrayList>();
private transient ArrayList<Functor> readFunctors = new ArrayList();
private transient ArrayList<Functor> writeFunctors = new ArrayList();
private transient Class<?> objectClass = null; // if provided
/**
* The ObjectTableModel is a TableModel whose rows are objects;
* columns are defined as Functors on the object.
*
* @param headers - Column names
* @param _objClass - Object class that will be used
* @param readFunctors - used to get the values
* @param writeFunctors - used to set the values
* @param editorClasses - class for each column
*/
public ObjectTableModel(String[] headers, Class<?> _objClass, Functor[] readFunctors, Functor[] writeFunctors, Class[] editorClasses) {
this(headers, readFunctors, writeFunctors, editorClasses);
this.objectClass=_objClass;
}
/**
* The ObjectTableModel is a TableModel whose rows are objects;
* columns are defined as Functors on the object.
*
* @param headers - Column names
* @param readFunctors - used to get the values
* @param writeFunctors - used to set the values
* @param editorClasses - class for each column
*/
public ObjectTableModel(String[] headers, Functor[] readFunctors, Functor[] writeFunctors, Class<?>[] editorClasses) {
this.headers.addAll(Arrays.asList(headers));
this.classes.addAll(Arrays.asList(editorClasses));
this.readFunctors = new ArrayList<Functor>(Arrays.asList(readFunctors));
this.writeFunctors = new ArrayList<Functor>(Arrays.asList(writeFunctors));
int numHeaders = headers.length;
int numClasses = classes.size();
if (numClasses != numHeaders){
log.warn("Header count="+numHeaders+" but classes count="+numClasses);
}
// Functor count = 0 is handled specially
int numWrite = writeFunctors.length;
if (numWrite > 0 && numWrite != numHeaders){
log.warn("Header count="+numHeaders+" but writeFunctor count="+numWrite);
}
int numRead = readFunctors.length;
if (numRead > 0 && numRead != numHeaders){
log.warn("Header count="+numHeaders+" but readFunctor count="+numRead);
}
}
private Object readResolve() {
objects = new ArrayList<Object>();
headers = new ArrayList<String>();
classes = new ArrayList<Class();
readFunctors = new ArrayList<Functor>();
writeFunctors = new ArrayList<Functor>();
return this;
}
public Iterator<?> iterator() {
return objects.iterator();
}
public void clearData() {
int size = getRowCount();
objects.clear();
super.fireTableRowsDeleted(0, size);
}
public void addRow(Object value) {
log.debug("Adding row value: " + value);
if (objectClass != null) {
final Class<?> valueClass = value.getClass();
if (!objectClass.isAssignableFrom(valueClass)){
throw new IllegalArgumentException("Trying to add class: "+valueClass.getName()
+"; expecting class: "+objectClass.getName());
}
}
objects.add(value);
super.fireTableRowsInserted(objects.size() - 1, objects.size());
}
public void insertRow(Object value, int index) {
objects.add(index, value);
super.fireTableRowsInserted(index, index + 1);
}
/** {@inheritDoc} */
@Override
public int getColumnCount() {
return headers.size();
}
/** {@inheritDoc} */
@Override
public String getColumnName(int col) {
return headers.get(col);
}
/** {@inheritDoc} */
@Override
public int getRowCount() {
if (objects == null) {
return 0;
}
return objects.size();
}
/** {@inheritDoc} */
@Override
public Object getValueAt(int row, int col) {
log.debug("Getting row value");
Object value = objects.get(row);
if(headers.size() == 1 && col >= readFunctors.size()) {
return value;
}
Functor getMethod = readFunctors.get(col);
if (getMethod != null && value != null) {
return getMethod.invoke(value);
}
return null;
}
/** {@inheritDoc} */
@Override
public boolean isCellEditable(int arg0, int arg1) {
return true;
}
/** {@inheritDoc} */
@Override
public void moveRow(int start, int end, int to) {
List<Object> subList = objects.subList(start, end);
for (int x = end - 1; x >= start; x--) {
objects.remove(x);
}
objects.addAll(to, subList);
super.fireTableChanged(new TableModelEvent(this));
}
/** {@inheritDoc} */
@Override
public void removeRow(int row) {
objects.remove(row);
super.fireTableRowsDeleted(row, row);
}
/** {@inheritDoc} */
@Override
public void setValueAt(Object cellValue, int row, int col) {
if (row < objects.size()) {
Object value = objects.get(row);
if (col < writeFunctors.size()) {
Functor setMethod = writeFunctors.get(col);
if (setMethod != null) {
setMethod.invoke(value, new Object[] { cellValue });
super.fireTableDataChanged();
}
}
else if(headers.size() == 1)
{
objects.set(row,cellValue);
}
}
}
/** {@inheritDoc} */
@Override
public Class<?> getColumnClass(int arg0) {
return classes.get(arg0);
}
/**
* Check all registered functors.
* <p>
* <b>** only for use in unit test code **
* </p>
*
* @param _value - an instance of the table model row data item
* (if null, use the class passed to the constructor).
*
* @param caller - class of caller.
*
* @return false if at least one Functor cannot be found.
*/
@SuppressWarnings("deprecation")
public boolean checkFunctors(Object _value, Class<?> caller){
Object value;
if (_value == null && objectClass != null) {
try {
value = objectClass.newInstance();
} catch (InstantiationException e) {
log.error("Cannot create instance of class "+objectClass.getName(),e);
return false;
} catch (IllegalAccessException e) {
log.error("Cannot create instance of class "+objectClass.getName(),e);
return false;
}
} else {
value = _value;
}
boolean status = true;
for(int i=0;i<getColumnCount();i++){
Functor setMethod = writeFunctors.get(i);
if (setMethod != null) {
if (!setMethod.checkMethod(value,getColumnClass(i))){
status=false;
log.warn(caller.getName()+" is attempting to use nonexistent "+setMethod.toString());
}
}
Functor getMethod = readFunctors.get(i);
if (getMethod != null) {
if (!getMethod.checkMethod(value)){
status=false;
log.warn(caller.getName()+" is attempting to use nonexistent "+getMethod.toString());
}
}
}
return status;
}
public Object getObjectList() { // used by TableEditor
return objects;
}
public void setRows(Iterable<?> rows) { // used by TableEditor
clearData();
for(Object val : rows)
{
addRow(val);
}
}
}
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