com.julienviet.childprocess.ProcessOptions.java Source code

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Here is the source code for com.julienviet.childprocess.ProcessOptions.java

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/*
 * Copyright (C) 2016 Julien Viet
 *
 * 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 com.julienviet.childprocess;

import io.vertx.codegen.annotations.DataObject;
import io.vertx.core.json.JsonObject;

import java.util.HashMap;
import java.util.Map;

/**
 * Options for spawning new processes.
 *
 * @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
 */
@DataObject(generateConverter = true)
public class ProcessOptions {

    /**
     * The default environment variables = the current process environment variables
     */
    public static final Map<String, String> DEFAULT_ENV = System.getenv();

    private Map<String, String> env;
    private String cwd;

    public ProcessOptions() {
        this.env = new HashMap<>(DEFAULT_ENV);
    }

    public ProcessOptions(ProcessOptions that) {
        env = that.env != null ? new HashMap<>(that.env) : null;
        cwd = that.cwd;
    }

    public ProcessOptions(JsonObject json) {
        ProcessOptionsConverter.fromJson(json, this);
    }

    /**
     * @return the current options environment variables as key-value pairs
     */
    public Map<String, String> getEnv() {
        return env;
    }

    /**
     * Set the child process environment variables as key-value pairs.
     *
     * @param env the env variables
     * @return a reference to this, so the API can be used fluently
     */
    public ProcessOptions setEnv(Map<String, String> env) {
        this.env = env;
        return this;
    }

    /**
     * @return the child process current working directory
     */
    public String getCwd() {
        return cwd;
    }

    /**
     * Set the child process current working directory.
     *
     * @param cwd the current working directory
     * @return a reference to this, so the API can be used fluently
     */
    public ProcessOptions setCwd(String cwd) {
        this.cwd = cwd;
        return this;
    }

    public JsonObject toJson() {
        JsonObject json = new JsonObject();
        ProcessOptionsConverter.toJson(this, json);
        return json;
    }
}