com.qcloud.cos.internal.cihandler.CIXmlResponsesSaxParser Maven / Gradle / Ivy
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A single bundled dependency that includes all service and dependent JARs with third-party libraries
relocated to different namespaces.
/*
* Copyright 2010-2019 Amazon.com, Inc. or its affiliates. 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.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.
* According to cos feature, we modify some class,comment, field name, etc.
*/
package com.qcloud.cos.internal.cihandler;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.internal.XmlResponsesSaxParser;
import com.qcloud.cos.utils.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class CIXmlResponsesSaxParser {
private static final Logger log = LoggerFactory.getLogger(XmlResponsesSaxParser.class);
private XMLReader xr = null;
public CIXmlResponsesSaxParser() {
try {
xr = XMLReaderFactory.createXMLReader();
} catch (SAXException e) {
throw new CosClientException("Couldn't initialize a SAX driver to create an XMLReader", e);
}
}
public void parseXmlInputStream(DefaultHandler handler, InputStream inputStream) throws IOException {
try {
if (log.isDebugEnabled()) {
log.debug("Parsing XML response document with handler: " + handler.getClass());
}
BufferedReader breader = new BufferedReader(new InputStreamReader(inputStream, StringUtils.UTF8));
CharacterFilter characterFilter = new CharacterFilter(breader);
xr.setContentHandler(handler);
xr.setErrorHandler(handler);
xr.parse(new InputSource(characterFilter));
} catch (IOException e) {
throw e;
} catch (Throwable t) {
try {
inputStream.close();
} catch (IOException e) {
if (log.isErrorEnabled()) {
log.error("Unable to close response InputStream up after XML parse failure", e);
}
}
throw new CosClientException("Failed to parse XML document with handler " + handler.getClass(), t);
}
}
}
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