org.codehaus.mojo.exec.EnvStreamConsumer Maven / Gradle / Ivy

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A plugin to allow execution of system and Java programs

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package org.codehaus.mojo.exec;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.cli.StreamConsumer;

public class EnvStreamConsumer implements StreamConsumer {

    public static final String START_PARSING_INDICATOR =
            "================================This is the beginning of env parsing================================";

    private Map envs = new HashMap<>();

    private List unparsed = new ArrayList<>();

    private boolean startParsing = false;

    public void consumeLine(String line) {

        if (line.startsWith(START_PARSING_INDICATOR)) {
            this.startParsing = true;
            return;
        }

        if (this.startParsing) {
            String[] tokens = StringUtils.split(line, "=", 2);
            if (tokens.length == 2) {
                envs.put(tokens[0], tokens[1]);
            } else {
                // Don't hide an environment variable with no value e.g. APP_OVERRIDE=
                String trimmedLine = line.trim();
                if (trimmedLine.endsWith("=")) {
                    envs.put(trimmedLine.substring(0, (trimmedLine.length() - 1)), null);
                } else {
                    unparsed.add(line);
                }
            }
        } else {
            System.out.println(line);
        }
    }

    public Map getParsedEnv() {
        return this.envs;
    }

    public List getUnparsedLines() {
        return this.unparsed;
    }
}