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/*
 * Copyright 2011, Unitils.org
 * Licensed 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.unitils.io.temp.impl;

import java.io.File;
import java.util.Properties;

import org.unitils.core.UnitilsException;
import org.unitils.io.temp.TempService;
import org.unitils.io.temp.TempServiceFactory;

import static org.unitils.util.PropertyUtils.getString;

/**
 * @author Jeroen Horemans
 * @author Tim Ducheyne
 * @author Thomas De Rycke
 * @since 3.3
 */
public class DefaultTempServiceFactory
    implements TempServiceFactory {
    public static final String ROOT_TEMP_DIR = "IOModule.temp.rootTempDir";

    @Override
    public TempService createTempService(Properties configuration) {
        File rootTempDir = getRootTempDir(configuration);
        return new DefaultTempService(rootTempDir);
    }

    protected File getRootTempDir(Properties configuration) {
        String systemTempDirName = System.getProperty("java.io.tmpdir");
        String rootTempDirName = getString(ROOT_TEMP_DIR, systemTempDirName, configuration);

        File rootTempDir = new File(rootTempDirName);
        if (rootTempDir.isFile()) {
            throw new UnitilsException("Root temp dir " + rootTempDirName + " is not a directory. Please fill in a directory for property " + ROOT_TEMP_DIR);
        }
        rootTempDir.mkdirs();
        return rootTempDir;
    }
}