com.vangent.hieos.DocViewer.server.framework.ServletUtilMixin.java Source code

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Here is the source code for com.vangent.hieos.DocViewer.server.framework.ServletUtilMixin.java

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/*
 * This code is subject to the HIEOS License, Version 1.0
 *
 * Copyright(c) 2011 Vangent, Inc.  All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.vangent.hieos.DocViewer.server.framework;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.io.IOUtils;

import com.vangent.hieos.xutil.exception.XConfigException;
import com.vangent.hieos.xutil.xconfig.XConfig;
import com.vangent.hieos.xutil.xconfig.XConfigActor;
import com.vangent.hieos.xutil.xconfig.XConfigObject;
import org.apache.commons.lang.StringUtils;

/**
 * 
 * @author Bernie Thuman
 * 
 */
public class ServletUtilMixin {

    private static final String XCONFIG_FILE = "/resources/xconfig.xml";
    public static final String SESSION_PROPERTY_AUTH_STATUS = "auth_status";
    public static final String SESSION_PROPERTY_AUTH_CREDS = "auth_creds";
    public static final String SESSION_PROPERTY_AUTH_CONTEXT = "auth_context";
    private ServletContext servletContext;

    /**
     * 
     * @param servletContext
     */
    public void init(ServletContext servletContext) {
        this.servletContext = servletContext;
        // FIXME: ? This may happen more than once, but likely OK since
        // all servlets share the same "xconfig.xml".
        String xConfigRealPath = servletContext.getRealPath(ServletUtilMixin.XCONFIG_FILE);
        System.out.println("Real Path: " + xConfigRealPath);
        XConfig.setConfigLocation(xConfigRealPath);
    }

    /**
     * 
     * @return
     */
    public ServletContext getServletContext() {
        return this.servletContext;
    }

    /**
     * 
     * @param request
     * @return
     */
    static public boolean isValidSession(HttpServletRequest request) {
        boolean validSession = false;

        // Get session.
        HttpSession session = request.getSession(false);
        if (session != null) {

            // See if we have a valid session.
            String loginSuccess = (String) session.getAttribute(SESSION_PROPERTY_AUTH_STATUS);
            if (loginSuccess == null || !loginSuccess.equals("true")) {
                // Do not continue.
                validSession = false;
            } else {
                // Continue.
                validSession = true;
            }
        }
        return validSession;
    }

    /**
     * 
     * @param request
     */
    static public void invalidateSession(HttpServletRequest request) {
        // Get session and invalidate.
        HttpSession session = request.getSession();
        session.invalidate();
    }

    /**
     * 
     * @param servletContext
     * @param key
     * @return
     */
    public String getProperty(String key) {
        String value = null;
        XConfigObject configObject = this.getConfig();
        if (configObject != null) {
            value = configObject.getProperty(key);
        }
        return value;
    }

    public String getProperty(String key, String defaultString) {
        String value = null;
        XConfigObject configObject = this.getConfig();
        if (configObject != null) {
            value = configObject.getProperty(key);
            if (StringUtils.isBlank(value)) {
                value = defaultString;
            }
        }
        return value;
    }

    /**
     * 
     * @param templateFilename
     * @return
     */
    public String getTemplateString(String templateFilename) {
        InputStream is = servletContext.getResourceAsStream("/resources/" + templateFilename);
        StringWriter writer = new StringWriter();
        try {
            IOUtils.copy(is, writer);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return writer.toString();
    }

    /**
     * 
     * @param name
     * @param type
     * @return
     */
    public XConfigActor getActorConfig(String name, String type) {
        XConfigActor actorConfig = null;
        XConfigObject configObject = this.getConfig();
        actorConfig = (XConfigActor) configObject.getXConfigObjectWithName(name, type);
        return actorConfig;
    }

    /**
     * 
     * @return
     */
    public XConfigObject getConfig() {
        XConfigObject config = null;
        try {
            XConfig xconf = XConfig.getInstance();
            config = xconf.getXConfigObjectByName("DocViewerProperties", "DocViewerPropertiesType");

        } catch (XConfigException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return config;
    }
}