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/* ========================================================================== *
* Copyright (C) 2004-2006, Pier Fumagalli <http://could.it/> *
* 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. 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 it.could.webdav;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* <p>A {@link DAVException} representing a
* <a href="http://www.rfc-editor.org/rfc/rfc2518.txt">WebDAV</a>
* <code>207</code> (Multi-Status) response.</p>
*
* @author <a href="http://could.it/">Pier Fumagalli</a>
*/
public class DAVMultiStatus extends DAVException {
private Set responses = new HashSet();
/**
* <p>Create a new {@link DAVMultiStatus} instance.</p>
*/
public DAVMultiStatus() {
super(207, "Multi-Status response");
}
/**
* <p>Write the body of the multi-status response to the specified
* {@link DAVTransaction}'s output.</p>
*/
public void write(DAVTransaction transaction)
throws IOException {
/* What to do on a collection resource */
transaction.setStatus(207);
transaction.setContentType("text/xml; charset=\"UTF-8\"");
PrintWriter out = transaction.write("UTF-8");
/* Output the XML declaration and the root document tag */
out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
out.println("<D:multistatus xmlns:D=\"DAV:\">");
Iterator responses = this.responses.iterator();
while (responses.hasNext()) {
Response response = (Response) responses.next();
out.println(" <D:response>");
out.print(" <D:href>");
out.print(transaction.lookup(response.resource));
out.println("</D:href>");
if (response.status != 0) {
out.print(" <D:status>HTTP/1.1 ");
out.print(DAVUtilities.getStatusMessage(response.status));
out.println("</D:status>");
}
if (response.message != null) {
out.print(" <D:responsedescription>");
out.print(response.message);
out.println("</D:responsedescription>");
}
out.println(" </D:response>");
}
out.println("</D:multistatus>");
out.flush();
}
/**
* <p>Return the number of responses held in this instance.</p>
*/
public int size() {
return this.responses.size();
}
/**
* <p>Merge the responses held into the specified {@link DAVMultiStatus}
* into this instance.</p>
*/
public void merge(DAVMultiStatus multistatus) {
if (multistatus == null) return;
Iterator iterator = multistatus.responses.iterator();
while (iterator.hasNext()) this.responses.add(iterator.next());
}
/**
* <p>Merge the details held into the specified {@link DAVException}
* into this instance.</p>
*/
public void merge(DAVException exception) {
DAVResource resource = exception.getResource();
if (resource == null) throw exception;
int status = exception.getStatus();
String message = exception.getMessage();
this.responses.add(new Response(resource, status, message));
}
private static class Response implements Comparable {
private DAVResource resource = null;
private int status = 0;
private String message = null;
public Response(Response response) {
this(response.resource, response.status, response.message);
}
public Response(DAVResource resource, int status, String message) {
if (resource == null) throw new NullPointerException();
this.resource = resource;
this.status = status;
this.message = message;
}
public int hashCode() {
return this.resource.hashCode();
}
public int compareTo(Object object) {
Response response = (Response) object;
return (this.resource.compareTo(response.resource));
}
public boolean equals(Object object) {
if (object instanceof Response) {
Response response = (Response) object;
return (this.resource.equals(response.resource));
}
return false;
}
}
}
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