/*
* 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.geode.management.internal.configuration.utils;
import org.apache.geode.distributed.internal.DistributionConfig;
import org.apache.geode.internal.cache.xmlcache.CacheXml;
import org.apache.commons.io.FileUtils;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import java.io.File;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
/******
* This class is used to resolve the location of DTD. During development time the dtd for the latest
* version is not published on the www.gemstone.com , then the dtd should be picked up as a resource
* from the Jar file.
*
* @deprecated As of 8.1 use {@link CacheXml}
*/
@Deprecated
public class DtdResolver implements EntityResolver {
@Deprecated
public InputSource resolveEntity(String publicId, String systemId) throws IOException {
if (!isHttpUrlOK(systemId)) {
URL dtdURL = getClass().getResource(CacheXml.LATEST_DTD_LOCATION);
File dtd = new File(DistributionConfig.GEMFIRE_PREFIX + "dtd");
FileUtils.copyURLToFile(dtdURL, dtd);
InputSource inputSource = new InputSource(FileUtils.openInputStream(dtd));
FileUtils.deleteQuietly(dtd);
return inputSource;
} else {
return null;
}
}
/****
* Checks if the url passed , can be contacted or not.
*
* @param urlString
* @return true if the URL is up and can be contacted.
*/
@Deprecated
public boolean isHttpUrlOK(String urlString) {
try {
URL e = new URL(urlString);
HttpURLConnection urlConnection = (HttpURLConnection) e.openConnection();
urlConnection.setRequestMethod("HEAD");
int responseCode = urlConnection.getResponseCode();
if (responseCode == 200) {
return true;
} else {
return false;
}
} catch (Exception e) {
return false;
}
}
/***
* Gets the URL for Cache dtd
*
* @return dtd url as string
* @throws MalformedURLException
*/
@Deprecated
public URL getDtdUrl() throws MalformedURLException {
if (isHttpUrlOK(CacheXml.LATEST_SYSTEM_ID)) {
return new URL(CacheXml.LATEST_SYSTEM_ID);
} else {
URL dtdURL = getClass().getResource(CacheXml.LATEST_DTD_LOCATION);
return dtdURL;
}
}
}