org.springframework.ide.eclipse.boot.ui.preferences.InitializrPreferencePage.java Source code

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Here is the source code for org.springframework.ide.eclipse.boot.ui.preferences.InitializrPreferencePage.java

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/*******************************************************************************
 *  Copyright (c) 2016 Pivotal, Inc.
 *  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:
 *      Pivotal, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.boot.ui.preferences;

import static org.springframework.ide.eclipse.boot.core.BootPreferences.PREF_INITIALIZR_URL;

import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.springframework.ide.eclipse.boot.core.BootActivator;

/**
 * Preferences page for Spring IO Initializr IDE support
 * 
 * @author Alex Boyko
 *
 */
public class InitializrPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    private static final String LABEL_INITIALIZR_URL = "Initializr URL";
    private static final String TOOLTIP_INITIALIZR_URL = "Spring Initializr server URL";
    private static final String MSG_INVALID_URL_FORMAT = "Invalid URL format";

    @Override
    public void init(IWorkbench workbench) {
        setPreferenceStore(BootActivator.getDefault().getPreferenceStore());
    }

    @Override
    protected void createFieldEditors() {
        Composite parent = getFieldEditorParent();

        StringFieldEditor initializrUrl = new StringFieldEditor(PREF_INITIALIZR_URL, LABEL_INITIALIZR_URL, parent) {

            @Override
            protected boolean checkState() {
                // Checks if string has a correct URL format 
                Text text = getTextControl();
                if (text == null) {
                    return false;
                }
                try {
                    new URL(text.getText());
                    clearErrorMessage();
                    return true;
                } catch (MalformedURLException e) {
                    setErrorMessage(MSG_INVALID_URL_FORMAT);
                    showErrorMessage();
                    return false;
                }
            }

        };

        initializrUrl.getLabelControl(parent).setToolTipText(TOOLTIP_INITIALIZR_URL);
        initializrUrl.getTextControl(parent).setToolTipText(TOOLTIP_INITIALIZR_URL);
        addField(initializrUrl);

    }

}