com.clustercontrol.accesscontrol.viewer.RoleSettingTreeContentProvider.java Source code

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Here is the source code for com.clustercontrol.accesscontrol.viewer.RoleSettingTreeContentProvider.java

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/*
    
Copyright (C) 2006 NTT DATA Corporation
    
This program is free software; you can redistribute it and/or
Modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, version 2.
    
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the GNU General Public License for more details.
    
 */

package com.clustercontrol.accesscontrol.viewer;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;

import com.clustercontrol.ws.access.RoleInfo;
import com.clustercontrol.ws.access.UserInfo;
import com.clustercontrol.ws.accesscontrol.RoleTreeItem;

/**
 * ???ITreeContentProvider??
 * 
 * @version 1.0.0
 * @since 1.0.0
 */
public class RoleSettingTreeContentProvider implements ITreeContentProvider {
    private static Log m_log = LogFactory.getLog(RoleSettingTreeContentProvider.class);

    /**
     * ??(??)???
     * 
     * @param inputElement 
     * @return ??
     * 
     * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
     */
    @Override
    public Object[] getElements(Object inputElement) {
        return getChildren(inputElement);
    }

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

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
     */
    @Override
    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
    }

    /**
     * ??????
     * 
     * @param parentElement 
     * @return ??
     * 
     * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
     */
    @Override
    public Object[] getChildren(Object parentElement) {
        List<RoleTreeItem> ret = ((RoleTreeItem) parentElement).getChildren();
        Collections.sort(ret, new Comparator<RoleTreeItem>() {
            @Override
            public int compare(RoleTreeItem o1, RoleTreeItem o2) {
                if (o1.getData() instanceof RoleInfo && o2.getData() instanceof RoleInfo) {
                    RoleInfo r1 = (RoleInfo) o1.getData();
                    RoleInfo r2 = (RoleInfo) o2.getData();
                    String s1 = r1.getRoleType();
                    String s2 = r2.getRoleType();
                    m_log.trace("s1=" + s1 + ", s2=" + s2);
                    if (s1 == null || s2 == null) {
                        // ??
                        return r1.getRoleName().compareTo(r2.getRoleName());
                    } else if (s1.equals(s2)) {
                        return r1.getRoleId().compareTo(r2.getRoleId());
                    } else {
                        return r1.getRoleType().compareTo(r2.getRoleType()) * -1;
                    }
                } else if (o1.getData() instanceof UserInfo && o2.getData() instanceof UserInfo) {
                    UserInfo u1 = (UserInfo) o1.getData();
                    UserInfo u2 = (UserInfo) o2.getData();
                    m_log.trace("u1=" + u1 + ", u2=" + u2);
                    return u1.getUserId().compareTo(u2.getUserId());
                }
                m_log.warn("unknown error");
                return -1; // ??????????
            }
        });
        return ret.toArray();
    }

    /**
     * ????
     * 
     * @param element 
     * 
     * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
     */
    @Override
    public Object getParent(Object element) {
        return ((RoleTreeItem) element).getParent();
    }

    /**
     * ???????????
     * 
     * @param element 
     * @return true????false????
     * 
     * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
     */
    @Override
    public boolean hasChildren(Object element) {
        return ((RoleTreeItem) element).getChildren().size() > 0;
    }

}