com.google.gdt.eclipse.gph.subclipse.SubclipseProduct.java Source code

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Here is the source code for com.google.gdt.eclipse.gph.subclipse.SubclipseProduct.java

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/*******************************************************************************
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * 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
 *
 * 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.
 *******************************************************************************/
package com.google.gdt.eclipse.gph.subclipse;

import org.eclipse.jface.preference.IPersistentPreferenceStore;
import org.eclipse.jface.preference.IPreferenceStore;
import org.tigris.subversion.clientadapter.Activator;
import org.tigris.subversion.clientadapter.ISVNClientWrapper;
import org.tigris.subversion.subclipse.core.SVNClientManager;
import org.tigris.subversion.subclipse.core.SVNProviderPlugin;
import org.tigris.subversion.subclipse.ui.ISVNUIConstants;
import org.tigris.subversion.subclipse.ui.SVNUIPlugin;

import java.io.IOException;

/**
 * TODO: doc me.
 */
public class SubclipseProduct {

    private static final String SVNKIT_CLIENT_INTERFACE = "svnkit";
    private static final String JAVAHL_CLIENT_INTERFACE = "javahl";

    public static void configureSVNKit() throws IOException {
        IPreferenceStore store = getPreferenceStore();
        store.setValue(ISVNUIConstants.PREF_SVNINTERFACE, SVNKIT_CLIENT_INTERFACE);
        if (store.needsSaving() && store instanceof IPersistentPreferenceStore) {
            ((IPersistentPreferenceStore) store).save();
        }
    }

    /**
     * Check if subclipse is configured.
     * 
     * @return <code>true</code> if subclipse is configured, <code>false</code>
     *         otherwise
     */
    public static boolean isConfigured() {
        String svnClientInterface = getSVNClientInterface();
        if (JAVAHL_CLIENT_INTERFACE.equals(svnClientInterface) || svnClientInterface == null) {
            // issue: if we attempt to get the adapter and it's not configured we'll
            // get a pop-up
            // we'd like to sidestep this...
            // simplified algorithm: if ANY wrappers can't load (this will be javahl);
            // then setup pure java client
            return !anyWrapperLoadErrors();
        }
        return true;
    }

    private static boolean anyWrapperLoadErrors() {
        ISVNClientWrapper[] wrappers = Activator.getDefault().getAllClientWrappers();
        for (ISVNClientWrapper wrapper : wrappers) {
            String loadErrors = wrapper.getLoadErrors();
            if (loadErrors != null && loadErrors.length() > 0) {
                return true;
            }
        }
        return false;
    }

    private static IPreferenceStore getPreferenceStore() {
        return SVNUIPlugin.getPlugin().getPreferenceStore();
    }

    private static String getSVNClientInterface() {
        return getSVNClientManager().getSvnClientInterface();
    }

    private static SVNClientManager getSVNClientManager() {
        return SVNProviderPlugin.getPlugin().getSVNClientManager();
    }

}