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

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

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/*
 * Copyright 2000-2011 Enonic AS
 * http://www.enonic.com/license
 */
package com.enonic.cms.core.boot;

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

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

final class HomeResolver implements SharedConstants {
    private final static Logger LOG = LoggerFactory.getLogger(HomeResolver.class);

    private Properties systemProperties;

    private Map<String, String> environment;

    private File defaultHome;

    public HomeResolver() {
        setSystemProperties(System.getProperties());
        setEnvironment(System.getenv());
        setDefaultHome(new File(SystemUtils.getUserHome(), "cms-home"));
    }

    public void setSystemProperties(final Properties props) {
        this.systemProperties = props;
    }

    public void setEnvironment(final Map<String, String> env) {
        this.environment = env;
    }

    public void setDefaultHome(final File dir) {
        this.defaultHome = dir;
    }

    public File resolve() {
        return validatePath(resolvePath());
    }

    private String resolvePath() {
        String path = this.systemProperties.getProperty(CMS_HOME);
        if (!StringUtils.isEmpty(path)) {
            return path;
        }

        path = this.environment.get(CMS_HOME_ENV);
        if (!StringUtils.isEmpty(path)) {
            return path;
        }

        return this.defaultHome.getAbsolutePath();
    }

    private File validatePath(final String path) {
        File dir = new File(path);

        try {
            dir = dir.getCanonicalFile();
        } catch (IOException e) {
            // Do nothing
        }

        if (dir.exists() && !dir.isDirectory()) {
            throw new IllegalArgumentException("Invalid home directory: [" + path + "] is not a directory");
        }

        if (!dir.exists() && dir.mkdirs()) {
            LOG.debug("Missing home directory was created in [" + dir.getAbsolutePath() + "]");
        }

        LOG.info("Home directory is set to [" + dir.getAbsolutePath() + "]");
        return dir;
    }
}