GenericApplicationFactory.java

/**
 * Copyright 2011 multibit.org
 *
 * Licensed under the MIT license (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://opensource.org/licenses/mit-license.php
 *
 * 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 net.bither.platform;

import net.bither.platform.builder.OSUtils;
import net.bither.platform.builder.generic.DefaultApplicationBuilder;
import net.bither.platform.builder.linux.LinuxApplicationBuilder;
import net.bither.platform.builder.mac.MacApplicationBuilder;
import net.bither.platform.builder.solaris.SolarisApplicationBuilder;
import net.bither.platform.builder.unix.UnixApplicationBuilder;
import net.bither.platform.builder.win.WindowsApplicationBuilder;

/**
 * <p>Factory to provide the following to application:</p>
 * <ul>
 * <li>Builds a {@link GenericApplication} appropriate for the execution platform</li>
 * </ul>
 *
 * @since 0.2.0
 *  
 */
public enum GenericApplicationFactory {
    INSTANCE;

    /**
     * This method must be synchronized to ensure that it completes before any OS events come in
     *
     * @param specification The specification providing all the listeners
     * @return A {@link GenericApplication} appropriate for the current execution platform
     */
    public synchronized GenericApplication buildGenericApplication(GenericApplicationSpecification specification) {
        // Determine the current platform
        if (OSUtils.isMac()) {
            return buildMacApplication(specification);
        }
        if (OSUtils.isLinux()) {
            return buildLinuxApplication(specification);
        }
        if (OSUtils.isSolaris()) {
            return buildSolarisApplication(specification);
        }
        if (OSUtils.isUnix()) {
            return buildUnixApplication(specification);
        }
        if (OSUtils.isWindows()) {
            return buildWindowsApplication(specification);
        }
        return buildUnknownApplication(specification);
    }

    private GenericApplication buildLinuxApplication(GenericApplicationSpecification specification) {
        return new LinuxApplicationBuilder().build(specification);
    }

    private GenericApplication buildMacApplication(GenericApplicationSpecification specification) {
        return new MacApplicationBuilder().build(specification);
    }

    private GenericApplication buildSolarisApplication(GenericApplicationSpecification specification) {
        return new SolarisApplicationBuilder().build(specification);
    }

    private GenericApplication buildUnixApplication(GenericApplicationSpecification specification) {
        return new UnixApplicationBuilder().build(specification);
    }

    private GenericApplication buildWindowsApplication(GenericApplicationSpecification specification) {
        return new WindowsApplicationBuilder().build(specification);
    }

    private GenericApplication buildUnknownApplication(GenericApplicationSpecification specification) {
        return new DefaultApplicationBuilder().build(specification);
    }

}