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A web user interface for quartz
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package org.n3r.quartz.glass.configuration;

import org.apache.commons.lang3.StringUtils;
import org.n3r.quartz.glass.job.GlassJobFactory;
import org.quartz.impl.jdbcjobstore.StdJDBCDelegate;
import org.quartz.impl.jdbcjobstore.oracle.OracleDelegate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import javax.servlet.ServletContext;

/**
 * Reads parameters from ServletContext and provides easy access to application configuration.
 */
@Component
public class Configuration {
    private Logger LOG = LoggerFactory.getLogger(Configuration.class);

    public static final String DEFAULT_TABLE_PREFIX = "glass_";
    public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";

    @Autowired(required = false)
    private ServletContext servletContext;

    private Store store = Store.MEMORY;
    private LogStore logStore = LogStore.MEMORY;
    private String tablePrefix = DEFAULT_TABLE_PREFIX;
    private String jobBasePackage = GlassJobFactory.class.getPackage().getName();
    private String dateFormat = DEFAULT_DATE_FORMAT;
    private InjectionType injectionType = InjectionType.FIELD;

    @PostConstruct
    public void init() {
        if (servletContext == null) return;

        String value = servletContext.getInitParameter("glass/store");
        if (StringUtils.isNotEmpty(value)) store = Store.valueOf(value);

        value = servletContext.getInitParameter("glass/store.tablePrefix");
        if (StringUtils.isNotEmpty(value)) tablePrefix = value;

        value = servletContext.getInitParameter("glass/job.basePackage");
        if (StringUtils.isNotEmpty(value)) jobBasePackage = value;

        value = servletContext.getInitParameter("glass/job.dateFormat");
        if (StringUtils.isNotEmpty(value)) dateFormat = servletContext.getInitParameter("glass/dateFormat");

        value = servletContext.getInitParameter("glass/job.injectionType");
        if (StringUtils.isNotEmpty(value)) injectionType = InjectionType.valueOf(value);

        value = servletContext.getInitParameter("glass/log.store");
        if (StringUtils.isNotEmpty(value)) logStore = LogStore.valueOf(value);

        LOG.info("Using store " + store);
        LOG.info("Using store tablePrefix " + tablePrefix);
        LOG.info("Using job basePackage " + jobBasePackage);
        LOG.info("Using job dateFormat " + dateFormat);
        LOG.info("Using job injectionType " + injectionType);
        LOG.info("Using log store " + logStore);
    }

    public String getRoot() {
        return servletContext.getContextPath() + "/glass";
    }

    public boolean isInMemory() {
        return Store.MEMORY.equals(store);
    }

    public String getDriverDelegateClass() {
        if (store == Store.ORACLE) {
            return OracleDelegate.class.getName();
        } else if (store == Store.MYSQL) {
            return StdJDBCDelegate.class.getName();
        }

        return "";
    }

    public Store getStore() {
        return store;
    }

    public LogStore getLogStore() {
        return logStore;
    }

    public String getTablePrefix() {
        return tablePrefix;
    }

    public String getJobBasePackage() {
        return jobBasePackage;
    }

    public String getDateFormat() {
        return dateFormat;
    }

    public InjectionType getInjectionType() {
        return injectionType;
    }
}