com.enonic.cms.core.home.HomeResolver.java Source code

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Here is the source code for com.enonic.cms.core.home.HomeResolver.java

Source

/*
 * Copyright 2000-2013 Enonic AS
 * http://www.enonic.com/license
 */

package com.enonic.cms.core.home;

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

import com.google.common.base.Strings;

public final class HomeResolver {
    private final Properties systemProperties;

    public HomeResolver() {
        this.systemProperties = new Properties();
    }

    public void addSystemProperties(final Properties props) {
        this.systemProperties.putAll(props);
    }

    public void addSystemProperties(final Map<String, String> map) {
        this.systemProperties.putAll(map);
    }

    public HomeDir resolve() {
        final File dir = validatePath(resolvePath());
        return new HomeDir(dir);
    }

    private String resolvePath() {
        String path = this.systemProperties.getProperty("cms.home");
        if (!Strings.isNullOrEmpty(path)) {
            return path;
        }

        path = this.systemProperties.getProperty("CMS_HOME");
        if (!Strings.isNullOrEmpty(path)) {
            return path;
        }

        throw new IllegalArgumentException(
                "Home directory not set. Please set either [cms.home] system property or [CMS_HOME] environment variable.");
    }

    private File validatePath(final String path) {
        final File dir = new File(path).getAbsoluteFile();
        if (!dir.exists() || !dir.isDirectory()) {
            throw new IllegalArgumentException("Invalid home directory: [" + path + "] is not a directory");
        }

        return dir;
    }
}