org.tomitribe.crest.environments.Environment Maven / Gradle / Ivy

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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.tomitribe.crest.environments;

import java.io.InputStream;
import java.io.PrintStream;
import java.util.Map;
import java.util.Properties;

public interface Environment {

    ThreadLocal ENVIRONMENT_THREAD_LOCAL = new ThreadLocal() {
        @Override
        protected Environment initialValue() {
            return new SystemEnvironment();
        }
    };

    PrintStream getOutput();

    PrintStream getError();

    InputStream getInput();

    Properties getProperties();

    default Map getEnv() {
        return System.getenv();
    }

     T findService(Class type);
}