org.jboss.jca.eclipse.preferences.IronJacamarPreferencePage.java Source code

Introduction

Here is the source code for org.jboss.jca.eclipse.preferences.IronJacamarPreferencePage.java

Source

/*
 * IronJacamar, a Java EE Connector Architecture implementation
 * Copyright 2012, Red Hat Inc, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.jca.eclipse.preferences;

import org.jboss.jca.eclipse.Activator;
import org.jboss.jca.eclipse.ResourceBundles;

import java.io.File;

import org.eclipse.jface.preference.DirectoryFieldEditor;
import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

/**
 * This class represents a preference page that
 * is contributed to the Preferences dialog. By 
 * subclassing <samp>FieldEditorPreferencePage</samp>, we
 * can use the field support built into JFace that allows
 * us to create a page that is small and knows how to 
 * save, restore and apply itself.
 * <p>
 * This page is used to modify preferences only. They
 * are stored in the preference store that belongs to
 * the main plug-in class. That way, preferences can
 * be accessed directly via the preference store.
 */
public class IronJacamarPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {
    private ResourceBundles pluginPrb = ResourceBundles.getInstance();

    private static String[] libs = { "ironjacamar-core-api.jar", "ironjacamar-core-impl.jar",
            "ironjacamar-common-api.jar", "ironjacamar-common-impl.jar", "ironjacamar-common-spi.jar",
            "ironjacamar-spec-api.jar", "ironjacamar-deployers-common.jar", "ironjacamar-deployers-fungal.jar",
            "ironjacamar-web.jar", "ironjacamar-jdbc.jar" };

    private static String[] dirs = { "bin", "doc", "deploy", "config", "system" };

    private DirectoryFieldEditor ijHomeFieldEditor;

    /**
     * IronJacamarPreferencePage
     */
    public IronJacamarPreferencePage() {
        super(GRID);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription(pluginPrb.getString("ijhome.desc"));
    }

    /**
     * Creates the field editors. Field editors are abstractions of
     * the common GUI blocks needed to manipulate various types
     * of preferences. Each field editor knows how to save and
     * restore itself.
     */
    public void createFieldEditors() {
        ijHomeFieldEditor = new DirectoryFieldEditor(PreferenceConstants.JCA_HOME_PATH, "IronJacamar home:",
                getFieldEditorParent());
        addField(ijHomeFieldEditor);

        StringFieldEditor remoteHostFieldEditor = new StringFieldEditor(PreferenceConstants.JCA_REMOTE_HOST,
                pluginPrb.getString("ijhome.host"), getFieldEditorParent());
        IntegerFieldEditor remotePortFieldEditor = new IntegerFieldEditor(PreferenceConstants.JCA_REMOTE_PORT,
                pluginPrb.getString("ijhome.port"), getFieldEditorParent());
        addField(remoteHostFieldEditor);
        addField(remotePortFieldEditor);

    }

    /** init
     * @param workbench IWorkbench
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    public void init(IWorkbench workbench) {
    }

    /** propertyChange
     * @param event PropertyChangeEvent 
     * @see org.eclipse.jface.preference.FieldEditorPreferencePage#
     * propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
     */
    @Override
    public void propertyChange(PropertyChangeEvent event) {
        super.propertyChange(event);

        if (event.getProperty().equals(FieldEditor.VALUE)) {
            checkState();
        }
    }

    /** checkState
     * @see org.eclipse.jface.preference.FieldEditorPreferencePage#checkState()
     */
    @Override
    protected void checkState() {
        super.checkState();

        String ijHome = ijHomeFieldEditor.getStringValue();
        boolean isHome = true;
        for (String lib : libs) {
            File ironJacamarLib = new File(ijHome + File.separator + "lib" + File.separator + lib);
            if (!ironJacamarLib.exists()) {
                isHome = false;
                break;
            }
        }
        if (isHome) {
            for (String dir : dirs) {
                File ironJacamarDir = new File(ijHome + File.separator + dir);
                if (!ironJacamarDir.exists()) {
                    isHome = false;
                    break;
                }
            }
        }

        if (!isHome) {
            setErrorMessage(pluginPrb.getString("ijhome.defined"));
            setValid(false);
        } else {
            setErrorMessage(null);
            setValid(true);
        }

    }
}