org.apache.solr.servlet.LoadAdminUiServlet Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.solr.servlet;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.StringEscapeUtils;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.SolrCore;
/**
* A simple servlet to load the Solr Admin UI
*
* @since solr 4.0
*/
public final class LoadAdminUiServlet extends HttpServlet {
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException {
// This attribute is set by the SolrDispatchFilter
CoreContainer cores = (CoreContainer) request.getAttribute("org.apache.solr.CoreContainer");
InputStream in = getServletContext().getResourceAsStream("/admin.html");
if(in != null && cores != null) {
try {
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
Writer out = new OutputStreamWriter(response.getOutputStream(), "UTF-8");
String html = IOUtils.toString(in, "UTF-8");
Package pack = SolrCore.class.getPackage();
String[] search = new String[] {
"${contextPath}",
"${adminPath}",
"${version}"
};
String[] replace = new String[] {
StringEscapeUtils.escapeJavaScript(request.getContextPath()),
StringEscapeUtils.escapeJavaScript(cores.getAdminPath()),
StringEscapeUtils.escapeJavaScript(pack.getSpecificationVersion())
};
out.write( StringUtils.replaceEach(html, search, replace) );
out.flush();
} finally {
IOUtils.closeQuietly(in);
}
} else {
response.sendError(404);
}
}
}