org.wso2.carbon.dbconsole.ui.internal.DBConsoleComponent.java Source code

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Here is the source code for org.wso2.carbon.dbconsole.ui.internal.DBConsoleComponent.java

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/*
 * Copyright (c) 2006, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 org.wso2.carbon.dbconsole.ui.internal;

import org.h2.server.web.WebServlet;
import org.osgi.framework.BundleContext;
import org.osgi.service.component.ComponentContext;
import org.osgi.service.http.HttpContext;
import org.osgi.service.http.HttpService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.Dictionary;
import java.util.Hashtable;

/*
   This is to register the h2console servlet to make the h2 console as a carbon component.
 */

/**
 * @scr.component name="org.wso2.carbon.dbconsole.ui" immediate="true"
 * @scr.reference name="http.service" interface="org.osgi.service.http.HttpService"
 * cardinality="1..1" policy="dynamic"  bind="setHttpService" unbind="unsetHttpService"
 */
public class DBConsoleComponent {
    private HttpService httpService = null;

    private static Log log = LogFactory.getLog(DBConsoleComponent.class);

    protected void activate(ComponentContext context) {
        try {
            registerServlet(context.getBundleContext());
            log.debug("******* DB Console bundle is activated ******* ");
        } catch (Throwable e) {
            log.error("******* Failed to activate DB Console bundle ******* ", e);
        }
    }

    public void registerServlet(BundleContext bundleContext) throws Exception {
        HttpContext defaultHttpContext = httpService.createDefaultHttpContext();
        Dictionary<String, String> servletParam = new Hashtable<String, String>(2);
        servletParam.put("-webAllowOthers", "");
        httpService.registerServlet("/dbconsole", new WebServlet(), servletParam, defaultHttpContext);
    }

    protected void deactivate(ComponentContext context) {
        httpService.unregister("/dbconsole");
        log.debug("******* DB Console bundle is deactivated ******* ");
    }

    protected void setHttpService(HttpService httpService) {
        this.httpService = httpService;
    }

    protected void unsetHttpService(HttpService httpService) {
        this.httpService = null;
    }

}