org.apache.jackrabbit.vault.sync.impl.XmlAnalyzer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of vault-sync Show documentation
Show all versions of vault-sync Show documentation
Apache Jackrabbit FileVault supplemental bundle which allows to sync the repository with some folder on the filesystem
The newest version!
/*
* 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.jackrabbit.vault.sync.impl;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import org.apache.commons.io.IOUtils;
import org.apache.jackrabbit.vault.fs.api.SerializationType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.InputSource;
/**
* Analyzes a xml source and guesses the type. the following types are
* recognized:
*
* - {@link org.apache.jackrabbit.vault.fs.api.SerializationType#GENERIC} if the source is not a valid XML
*
- {@link org.apache.jackrabbit.vault.fs.api.SerializationType#XML_GENERIC} if the XML type is not known. eg. a user-xml
*
- {@link org.apache.jackrabbit.vault.fs.api.SerializationType#XML_DOCVIEW} if the XML is a docview serialization
*
* Please note, that the docview serialization is recognized if the first
* element contains a jcr:primaryType attribute.
*
* Note: this is a copy of the package internal org.apache.jackrabbit.vault.impl.io.XmlAnalyzer
*/
public class XmlAnalyzer {
/**
* the default logger
*/
private static final Logger log = LoggerFactory.getLogger(XmlAnalyzer.class);
private XmlAnalyzer() {
}
/**
* Analyzes the given source.
*
* @param source the source to analyze
* @return the serialization type
* @throws java.io.IOException if an I/O error occurs
*/
public static SerializationType analyze(InputSource source) throws IOException {
Reader r = source.getCharacterStream();
SerializationType type = SerializationType.UNKOWN;
if (r == null) {
if (source.getEncoding() == null) {
r = new InputStreamReader(source.getByteStream());
} else {
r = new InputStreamReader(source.getByteStream(), source.getEncoding());
}
}
try {
// read a couple of chars...1024 should be enough
char[] buffer = new char[1024];
int pos = 0;
while (pos