/**
* 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.zookeeper.inspector.gui.nodeviewer;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.util.List;
import javax.swing.JPanel;
import org.apache.zookeeper.inspector.manager.ZooInspectorNodeManager;
/**
* A {@link JPanel} for displaying information about the currently selected
* node(s)
*/
public abstract class ZooInspectorNodeViewer extends JPanel implements
Transferable {
/**
* The {@link DataFlavor} used for DnD in the node viewer configuration
* dialog
*/
public static final DataFlavor nodeViewerDataFlavor = new DataFlavor(
ZooInspectorNodeViewer.class, "nodeviewer");
/**
* @param zooInspectorManager
*/
public abstract void setZooInspectorManager(
ZooInspectorNodeManager zooInspectorManager);
/**
* Called whenever the selected nodes in the tree view changes.
*
* @param selectedNodes
* - the nodes currently selected in the tree view
*
*/
public abstract void nodeSelectionChanged(List<String> selectedNodes);
/**
* @return the title of the node viewer. this will be shown on the tab for
* this node viewer.
*/
public abstract String getTitle();
/*
* (non-Javadoc)
*
* @see
* java.awt.datatransfer.Transferable#getTransferData(java.awt.datatransfer
* .DataFlavor)
*/
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (flavor.equals(nodeViewerDataFlavor)) {
return this.getClass().getCanonicalName();
} else {
return null;
}
}
/*
* (non-Javadoc)
*
* @see java.awt.datatransfer.Transferable#getTransferDataFlavors()
*/
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { nodeViewerDataFlavor };
}
/*
* (non-Javadoc)
*
* @seejava.awt.datatransfer.Transferable#isDataFlavorSupported(java.awt.
* datatransfer.DataFlavor)
*/
public boolean isDataFlavorSupported(DataFlavor flavor) {
return flavor.equals(nodeViewerDataFlavor);
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((getTitle() == null) ? 0 : getTitle().hashCode());
return result;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ZooInspectorNodeViewer other = (ZooInspectorNodeViewer) obj;
if (getClass().getCanonicalName() != other.getClass()
.getCanonicalName()) {
return false;
}
if (getTitle() == null) {
if (other.getTitle() != null)
return false;
} else if (!getTitle().equals(other.getTitle()))
return false;
return true;
}
}