/*
* 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.webdav;
import org.apache.jackrabbit.webdav.xml.DomUtil;
import org.apache.jackrabbit.webdav.xml.XmlSerializable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* <code>Status</code> encapsulating the 'status' present in multistatus
* responses.
*/
public class Status implements DavConstants, XmlSerializable{
private static Logger log = LoggerFactory.getLogger(Status.class);
private final String version;
private final int code;
private final String phrase;
public Status(int code) {
version = "HTTP/1.1";
this.code = code;
phrase = DavException.getStatusPhrase(code);
}
public Status(String version, int code, String phrase) {
this.version = version;
this.code = code;
this.phrase = phrase;
}
public int getStatusCode() {
return code;
}
/**
* @see XmlSerializable#toXml(Document)
*/
public Element toXml(Document document) {
String statusLine = version + " " + code + " " + phrase;
Element e = DomUtil.createElement(document, XML_STATUS, NAMESPACE);
DomUtil.setText(e, statusLine);
return e;
}
/**
* Parse the given status line and return a new <code>Status</code> object.
*
* @param statusLine
* @return a new <code>Status</code>
*/
public static Status parse(String statusLine) {
if (statusLine == null) {
throw new IllegalArgumentException("Unable to parse status line from null xml element.");
}
Status status;
// code copied from org.apache.commons.httpclient.StatusLine
int length = statusLine.length();
int at = 0;
int start = 0;
try {
while (Character.isWhitespace(statusLine.charAt(at))) {
++at;
++start;
}
if (!"HTTP".equals(statusLine.substring(at, at += 4))) {
log.warn("Status-Line '" + statusLine + "' does not start with HTTP");
}
//handle the HTTP-Version
at = statusLine.indexOf(' ', at);
if (at <= 0) {
log.warn("Unable to parse HTTP-Version from the status line: '" + statusLine + "'");
}
String version = (statusLine.substring(start, at)).toUpperCase();
//advance through spaces
while (statusLine.charAt(at) == ' ') {
at++;
}
//handle the Status-Code
int code;
int to = statusLine.indexOf(' ', at);
if (to < 0) {
to = length;
}
try {
code = Integer.parseInt(statusLine.substring(at, to));
} catch (NumberFormatException e) {
throw new IllegalArgumentException("Unable to parse status code from status line: '" + statusLine + "'");
}
//handle the Reason-Phrase
String phrase = "";
at = to + 1;
if (at < length) {
phrase = statusLine.substring(at).trim();
}
status = new Status(version, code, phrase);
} catch (StringIndexOutOfBoundsException e) {
throw new IllegalArgumentException("Status-Line '" + statusLine + "' is not valid");
}
return status;
}
}