package org.g4studio.core.resource.impl;
import java.io.IOException;
import java.io.InputStream;
import javax.servlet.ServletConfig;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.g4studio.core.resource.AbstractResourceServlet;
import org.g4studio.core.resource.ResourceManager;
import org.g4studio.core.resource.util.StringUtils;
/**
* ResourceServlet
*
* @author HuangYunHui|XiongChun
* @since 2009-05-22
*/
public class ResourceServlet extends AbstractResourceServlet {
private static final long serialVersionUID = 1L;
private final Log logger = LogFactory.getLog(this.getClass());
public static final String CONFIG_PARAM_KEY = "config";
public static final String DEFAULT_CONFIG = "/WEB-INF/classes/g4resource.properties";
protected ResourceManager createResourceManager(ServletConfig pServletConfig) {
final String config = pServletConfig.getInitParameter(CONFIG_PARAM_KEY);
String useConifg = config;
Configuration configuration = new Configuration();
if (StringUtils.hasLength(config) == false) {// 没设置了配置文件
logger.info("没有指定资源管理器的配置文件，采用默认的配置: " + DEFAULT_CONFIG);
useConifg = DEFAULT_CONFIG;
}
logger.debug("G4.Resource配置文件是:" + useConifg);
InputStream is = this.getServletContext().getResourceAsStream(useConifg);
if (is == null) {
final String MSG = "没有发现配置文件:" + useConifg + "\n" + "系统启用默认的配置!";
logger.warn(MSG);
configuration.build();
} else {
try {
configuration.buildInputStream(is);
} finally {
try {
if (is != null)
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
ResourceManager result = configuration.buildResourceManager();
return result;
}
}