com.ebmwebsoucing.petals.repositories.explorer.wizards.QueryApiBeanDefinitionDialog.java Source code

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Here is the source code for com.ebmwebsoucing.petals.repositories.explorer.wizards.QueryApiBeanDefinitionDialog.java

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/******************************************************************************
 * Copyright (c) 2010-2013, Linagora
 *
 * 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:
 *       Linagora - initial API and implementation
 *******************************************************************************/

package com.ebmwebsoucing.petals.repositories.explorer.wizards;

import java.net.URI;

import org.eclipse.bpel.common.wsdl.helpers.UriAndUrlHelper;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

import com.ebmwebsoucing.petals.repositories.explorer.model.QueryApiBean;
import com.ebmwebsoucing.petals.repositories.explorer.model.RepositoryQueryApi;
import com.ebmwebsourcing.petals.common.internal.provisional.utils.StringUtils;

/**
 * A dialog to ask for a query API and a query URL.
 * @author Vincent Zurczak - EBM WebSourcing
 */
public class QueryApiBeanDefinitionDialog extends TitleAreaDialog {

    private QueryApiBean queryApiBean;
    private String uriAsString;
    private RepositoryQueryApi api;

    /**
     * Constructor.
     * @param parentShell
     * @param queryApiBean
     */
    public QueryApiBeanDefinitionDialog(Shell parentShell, QueryApiBean queryApiBean) {
        super(parentShell);

        if (queryApiBean != null)
            this.queryApiBean = queryApiBean;
        else
            this.queryApiBean = new QueryApiBean();
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.TitleAreaDialog
     * #createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createDialogArea(Composite parent) {

        Composite bigContainer = new Composite((Composite) super.createDialogArea(parent), SWT.NONE);
        GridLayout layout = new GridLayout(2, false);
        layout.marginWidth = 10;
        bigContainer.setLayout(layout);
        bigContainer.setLayoutData(new GridData(GridData.FILL_BOTH));

        // Add the API field
        new Label(bigContainer, SWT.NONE).setText("Query API:");
        ComboViewer viewer = new ComboViewer(bigContainer, SWT.BORDER | SWT.READ_ONLY | SWT.DROP_DOWN);
        viewer.getCombo().setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        viewer.setContentProvider(new ArrayContentProvider());
        viewer.setLabelProvider(new LabelProvider() {
            @Override
            public String getText(Object element) {
                String result = "";
                if (element instanceof RepositoryQueryApi)
                    result = ((RepositoryQueryApi) element).toString();
                return result;
            }
        });

        viewer.setInput(RepositoryQueryApi.values());
        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                if (!event.getSelection().isEmpty()) {
                    QueryApiBeanDefinitionDialog.this.api = (RepositoryQueryApi) ((IStructuredSelection) event
                            .getSelection()).getFirstElement();
                    validate();
                }
            }
        });

        // Add the URL field
        new Label(bigContainer, SWT.NONE).setText("Query URI:");
        Text urlText = new Text(bigContainer, SWT.SINGLE | SWT.BORDER);
        urlText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        urlText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                QueryApiBeanDefinitionDialog.this.uriAsString = ((Text) e.widget).getText();
                validate();
            }
        });

        getShell().setText("New Query API");
        setTitle("Query API");
        setMessage("Associate a new Query API with this repository.");
        return bigContainer;
    }

    /**
     * Validates the dialog fields.
     */
    private void validate() {

        URI uri = null;
        boolean complete = false;
        if (StringUtils.isEmpty(this.uriAsString)) {
            setErrorMessage("You must specify the Query URI.");
        } else {
            try {
                uri = UriAndUrlHelper.urlToUri(this.uriAsString);
                complete = true;

            } catch (Exception e) {
                setErrorMessage("The Query URI is not a valid URI.");
            }
        }

        if (complete) {
            setErrorMessage(null);
            this.queryApiBean.setQueryUri(uri);
            this.queryApiBean.setQueryApi(this.api);
        }
    }

    /**
     * @return the queryApiBean
     */
    public QueryApiBean getQueryApiBean() {
        return this.queryApiBean;
    }
}