com.sap.netweaver.porta.ide.eclipse.server.ui.wizard.SapNWServerWizardFragment.java Source code

Introduction

Here is the source code for com.sap.netweaver.porta.ide.eclipse.server.ui.wizard.SapNWServerWizardFragment.java

Source

/*******************************************************************************
 * Copyright (c) 2009, 2010 SAP AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Kaloyan Raev (SAP AG) - initial API and implementation
 *******************************************************************************/
package com.sap.netweaver.porta.ide.eclipse.server.ui.wizard;

import java.util.Collection;
import java.util.HashSet;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.wst.server.core.IServer;
import org.eclipse.wst.server.core.IServerWorkingCopy;
import org.eclipse.wst.server.core.ServerCore;
import org.eclipse.wst.server.core.TaskModel;
import org.eclipse.wst.server.ui.wizard.IWizardHandle;
import org.eclipse.wst.server.ui.wizard.WizardFragment;

import com.sap.netweaver.porta.ide.eclipse.SapNWPlugin;
import com.sap.netweaver.porta.ide.eclipse.server.SapNWServer;

public class SapNWServerWizardFragment extends WizardFragment {

    protected IWizardHandle wizard;
    protected SapNWServerComposite comp;

    public SapNWServerWizardFragment() {
        // do nothing
    }

    public boolean hasComposite() {
        return true;
    }

    public Composite createComposite(Composite parent, IWizardHandle wizard) {
        this.wizard = wizard;
        comp = new SapNWServerComposite(parent, wizard);
        return comp;
    }

    public boolean isComplete() {
        IServerWorkingCopy server = getServer();
        if (server == null)
            return false;

        return comp.isPinged() && wizard.getMessageType() != IMessageProvider.ERROR;
    }

    public void enter() {
        if (comp != null) {
            comp.setServer(getServer());
        }
    }

    private IServerWorkingCopy getServer() {
        return (IServerWorkingCopy) getTaskModel().getObject(TaskModel.TASK_SERVER);
    }

    public void performFinish(IProgressMonitor monitor) throws CoreException {
        SapNWServer sapServer = (SapNWServer) getServer().loadAdapter(SapNWServer.class, monitor);
        try {
            String systemName = sapServer.getServerCore().getSystemName();
            getServer().setName(getUniqueServerName(systemName));
        } catch (com.sap.netweaver.porta.core.CoreException e) {
            SapNWPlugin.logError(String.format("Cannot retrieve system name for server [%s:%d]. ",
                    sapServer.getServer().getHost(), sapServer.getInstanceNumber()), e);
        }
    }

    private String getUniqueServerName(String prefix) {
        String uniqueName = null;

        // enumerate all servers names
        IServer[] existingServers = ServerCore.getServers();
        Collection<String> serverNames = new HashSet<String>(existingServers.length);
        for (IServer server : existingServers) {
            serverNames.add(server.getName());
        }

        // check if the given prefix is unique
        int index = 1;
        if (!serverNames.contains(prefix))
            uniqueName = prefix;

        // attempt to construct unique name using the pattern "prefix (index)"
        while (uniqueName == null) {
            index++;
            String candidate = String.format("%s (%d)", prefix, index);
            if (!serverNames.contains(candidate))
                uniqueName = candidate;
        }

        return uniqueName;
    }

}