SecurityGroupTableProvider.java

/*
 * Copyright 2008-2012 Amazon Technologies, Inc.
 *
 * Licensed 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://aws.amazon.com/apache2.0
 *
 * This file 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 com.amazonaws.eclipse.ec2.ui.securitygroups;

import java.util.List;

import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;

import com.amazonaws.eclipse.ec2.Ec2Plugin;
import com.amazonaws.services.ec2.model.SecurityGroup;

/**
 * Label and content provider for the security group selection table.
 */
class SecurityGroupTableProvider extends LabelProvider
	implements ITreeContentProvider, ITableLabelProvider {

	List<SecurityGroup> securityGroups;

	/*
	 * IStructuredContentProvider
	 */

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
	 */
	@SuppressWarnings("unchecked")
	public void inputChanged(Viewer v, Object oldInput, Object newInput) {
		if (!(newInput instanceof List)) return;

		securityGroups = (List<SecurityGroup>)newInput;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
	 */
	public void dispose() {
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
	 */
	public Object[] getElements(Object parent) {
		return securityGroups.toArray();
	}


	/*
	 * ITableLabelProvider Interface
	 */

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
	 */
	public String getColumnText(Object obj, int index) {
		if (!(obj instanceof SecurityGroup)) return "???";

		SecurityGroup securityGroup = (SecurityGroup)obj;

		switch (index) {
		case 0:
			return securityGroup.getGroupName();
		case 1:
			return securityGroup.getDescription();
		}

		return "N/A";
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
	 */
	public Image getColumnImage(Object obj, int index) {
		if (index == 0)
		    return Ec2Plugin.getDefault().getImageRegistry().get("shield");
		return null;		
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
	 */
	public Image getImage(Object obj) {
		return null;
	}

	public Object[] getChildren(Object parentElement) {
		return new Object[0];
	}

	public Object getParent(Object element) {
		return null;
	}

	public boolean hasChildren(Object element) {
		return false;
	}
}