DiskConfigController.java

/*
 * Copyright (c) 2008-2014 EMC Corporation
 * All Rights Reserved
 */
package com.emc.storageos.installer.controller;

import com.emc.storageos.model.property.PropertyConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import charvax.swing.event.ListSelectionEvent;
import charvax.swing.event.ListSelectionListener;

import com.emc.storageos.installer.util.InstallerConstants;
import com.emc.storageos.installer.util.InstallerOperation;
import com.emc.storageos.services.util.Configuration;
import com.emc.storageos.services.util.ServerProbe;
import com.emc.storageos.installer.widget.SelectListPanel;

/**
 * Class implements the control on the Disk selection page.
 * 
 */
public class DiskConfigController implements IConfigPanelController {
    private static final Logger log = LoggerFactory.getLogger(DiskConfigController.class);
    private SelectListPanel panel;
    private Configuration config;
    private String diskInputStr;
    private String diskName;
    private String sizeStr;
    private String[] status;

    public DiskConfigController(Configuration config, SelectListPanel panel) {
        this.panel = panel;
        this.config = config;
        setupEventListener();
    }

    private void setupEventListener() {
        this.panel.addListSelectionListener(new SelectDiskListener());
    }

    /**
     * Class implements action listener on disk selection.
     * 
     */
    class SelectDiskListener implements ListSelectionListener {
        @Override
        public void valueChanged(ListSelectionEvent ie) {
            status = null;
            Object[] items = panel.getList().getSelectedValues();
            String s = "";
            for (int i = 0; i < items.length; i++) {
                if (i != 0) {
                    s += ",";
                }
                s += (String) items[i];
            }
            diskInputStr = s;
            if (diskInputStr != null && !diskInputStr.isEmpty()) {
                diskName = InstallerOperation.parseDiskString(diskInputStr);
                log.debug("Do validation on disk '{}'", diskName);
                if (checkDiskCapacityForMinimumRequirement()) {
                    checkDiskForViprPartitions();
                }
            }
        }

        private void checkDiskForViprPartitions() {
            if (ServerProbe.getInstance().hasViPRPartition(diskName)) {
                log.warn("Disk {} has ViPR partition already", diskName);
                String[] warningMsg = new String[] {
                        String.format(InstallerConstants.WARN_MSG_DISK_HAS_VIPR_PARTITION_1, diskName),
                        InstallerConstants.WARN_MSG_DISK_HAS_VIPR_PARTITION_2,
                        InstallerConstants.WARN_MSG_DISK_HAS_VIPR_PARTITION_3 };
                panel.getRoot().displayWarningMessage(warningMsg);
            }
        }

        private boolean checkDiskCapacityForMinimumRequirement() {
            sizeStr = ServerProbe.getInstance().getDiskCapacity(diskName);
            log.debug("Check disk {} and size {} for minimum size requirement",
                    diskName, sizeStr);
            if (!ServerProbe.getInstance().diskMetMiniumSizeReq(diskName)) {
                log.warn("Disk {} failed minimum size check", diskName);
                status = new String[] { InstallerConstants.ERROR_MSG_NOT_MEET_MIN_REQ_1,
                        InstallerConstants.ERROR_MSG_HW_NOT_SAME_2,
                        InstallerConstants.ERROR_MSG_NOT_MEET_MIN_REQ_4 };
                panel.getRoot().displayErrorMessage(status);
                return false;
            }
            return true;
        }
    }

    @Override
    public String[] configurationIsCompleted() {
        String msg = null;
        if (diskInputStr == null || diskInputStr.isEmpty()) {
            msg = InstallerConstants.DISK_CONFIG_WARN_MSG;
        } else {
            if (status != null && status.length != 0) {
                return status;
            } else {
                config.getHwConfig().put(PropertyConstants.PROPERTY_KEY_DISK, diskName);
                config.getHwConfig().put(PropertyConstants.PROPERTY_KEY_DISK_CAPACITY, sizeStr);
            }
        }
        return (msg == null) ? null : new String[] { msg };
    }
}