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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 org.netbeans.modules.nativeexecution;

import java.util.List;
import org.netbeans.modules.nativeexecution.api.ExecutionEnvironment;
import org.netbeans.modules.nativeexecution.api.util.ExternalTerminal;
import org.netbeans.modules.nativeexecution.support.TerminalProfile;

/**
 *
 */
public abstract class ExternalTerminalAccessor {

    private static volatile ExternalTerminalAccessor DEFAULT;

    public static void setDefault(ExternalTerminalAccessor accessor) {
        if (DEFAULT != null) {
            throw new IllegalStateException(
                    "ConnectionManagerAccessor is already defined"); // NOI18N
        }

        DEFAULT = accessor;
    }

    public static synchronized ExternalTerminalAccessor getDefault() {
        if (DEFAULT != null) {
            return DEFAULT;
        }

        try {
            Class.forName(ExternalTerminal.class.getName(), true,
                    ExternalTerminal.class.getClassLoader());
        } catch (ClassNotFoundException ex) {
        }

        return DEFAULT;
    }

    public abstract String getExecutable(final ExternalTerminal terminal,
            final ExecutionEnvironment execEnv);

    public abstract TerminalProfile getTerminalProfile(final ExternalTerminal terminal);

    public abstract String getPrompt(final ExternalTerminal terminal);

    public abstract List wrapCommand(final ExecutionEnvironment execEnv,
            final ExternalTerminal terminal, List args);

    public abstract String getTitle(final ExternalTerminal terminal);
}