org.eclipse.cft.server.ui.internal.HostnameValidator.java Source code

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Here is the source code for org.eclipse.cft.server.ui.internal.HostnameValidator.java

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/*******************************************************************************
 * Copyright (c) 2015, 2016 Pivotal Software Inc. and IBM Corporation 
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of 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.
 *  
 *  Contributors:
 *     IBM - initial API and implementation - Bug 485697 - Implement 
 *           host name taken check in CF wizards
 ********************************************************************************/
package org.eclipse.cft.server.ui.internal;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.cft.server.core.internal.CloudApplicationURL;
import org.eclipse.cft.server.core.internal.CloudFoundryPlugin;
import org.eclipse.cft.server.core.internal.CloudFoundryServer;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.operation.IRunnableWithProgress;

/**
 * Validator to check if the hostname is already taken in specified domain
 * 
 */
public class HostnameValidator implements IRunnableWithProgress {

    private CloudApplicationURL appUrl;
    private IStatus status;
    private CloudFoundryServer server;
    // Allow override of the default message for the host name taken problem (for initialization of the wizard)
    private String message = null;

    private boolean routeCreated = false;

    public HostnameValidator(CloudApplicationURL appUrl, CloudFoundryServer server) {
        this(appUrl, server, null);
    }

    public HostnameValidator(CloudApplicationURL appUrl, CloudFoundryServer server, String message) {
        this.appUrl = appUrl;
        this.server = server;
        this.message = message;
        this.status = Status.OK_STATUS;
    }

    public IStatus getStatus() {
        return status;
    }

    public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        monitor.beginTask(Messages.CloudApplicationUrlPart_HOST_CHECK_JOB_DISPLAY_INFO, IProgressMonitor.UNKNOWN);
        try {
            routeCreated = server.getBehaviour().checkHostTaken(appUrl.getSubdomain(), appUrl.getDomain(), false,
                    monitor);
        } catch (CoreException ce) {
            status = ce.getStatus();
            String errorMessage = ce.getMessage();
            // host name taken is potentially one cause of the CoreException
            // Look for it specifically, and change the error message so it's more user-friendly.
            // Message from java client is: "Client error - The host is taken".
            // Replace it with ours that is more meaningful.
            if (errorMessage != null && errorMessage.contains("Client error - The host is taken")) { // $NON-NLS-N$
                status = new Status(IStatus.ERROR, status.getPlugin(), message != null ? message
                        : Messages.bind(Messages.CloudApplicationUrlPart_ERROR_HOSTNAME_TAKEN, appUrl.getUrl()));
            } else {
                // For other errors (like connection time out), give a more user-friendly message than the one provided
                status = new Status(IStatus.ERROR, status.getPlugin(),
                        Messages.CloudApplicationUrlPart_ERROR_UNABLE_TO_CHECK_HOSTNAME);
                // Log the error at least.
                CloudFoundryPlugin.logError(Messages.CloudApplicationUrlPart_ERROR_UNABLE_TO_CHECK_HOSTNAME, ce);
            }
        } finally {
            monitor.done();
        }
    }

    /** Returns true if a route was created during validation; a route will not 
     * be created if it already exists. */
    public boolean isRouteCreated() {
        return routeCreated;
    }

}