/*
* $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/message/BasicHttpResponse.java $
* $Revision: 573864 $
* $Date: 2007-09-08 08:53:25 -0700 (Sat, 08 Sep 2007) $
*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.message;
import java.util.Locale;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolVersion;
import org.apache.http.StatusLine;
import org.apache.http.ReasonPhraseCatalog;
/**
* Basic implementation of an HTTP response that can be modified.
* This implementation makes sure that there always is a status line.
*
* @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
*
* @version $Revision: 573864 $
*
* @since 4.0
*/
public class BasicHttpResponse extends AbstractHttpMessage
implements HttpResponse {
private StatusLine statusline;
private HttpEntity entity;
private ReasonPhraseCatalog reasonCatalog;
private Locale locale;
/**
* Creates a new response.
* This is the constructor to which all others map.
*
* @param statusline the status line
* @param catalog the reason phrase catalog, or
* <code>null</code> to disable automatic
* reason phrase lookup
* @param locale the locale for looking up reason phrases, or
* <code>null</code> for the system locale
*/
public BasicHttpResponse(final StatusLine statusline,
final ReasonPhraseCatalog catalog,
final Locale locale) {
super();
if (statusline == null) {
throw new IllegalArgumentException("Status line may not be null.");
}
this.statusline = statusline;
this.reasonCatalog = catalog;
this.locale = (locale != null) ? locale : Locale.getDefault();
}
/**
* Creates a response from a status line.
* The response will not have a reason phrase catalog and
* use the system default locale.
*
* @param statusline the status line
*/
public BasicHttpResponse(final StatusLine statusline) {
this(statusline, null, null);
}
/**
* Creates a response from elements of a status line.
* The response will not have a reason phrase catalog and
* use the system default locale.
*
* @param ver the protocol version of the response
* @param code the status code of the response
* @param reason the reason phrase to the status code, or
* <code>null</code>
*/
public BasicHttpResponse(final ProtocolVersion ver,
final int code,
final String reason) {
this(new BasicStatusLine(ver, code, reason), null, null);
}
// non-javadoc, see interface HttpMessage
public ProtocolVersion getProtocolVersion() {
return this.statusline.getProtocolVersion();
}
// non-javadoc, see interface HttpResponse
public StatusLine getStatusLine() {
return this.statusline;
}
// non-javadoc, see interface HttpResponse
public HttpEntity getEntity() {
return this.entity;
}
// non-javadoc, see interface HttpResponse
public Locale getLocale() {
return this.locale;
}
// non-javadoc, see interface HttpResponse
public void setStatusLine(final StatusLine statusline) {
if (statusline == null) {
throw new IllegalArgumentException("Status line may not be null");
}
this.statusline = statusline;
}
// non-javadoc, see interface HttpResponse
public void setStatusLine(final ProtocolVersion ver, final int code) {
// arguments checked in BasicStatusLine constructor
this.statusline = new BasicStatusLine(ver, code, getReason(code));
}
// non-javadoc, see interface HttpResponse
public void setStatusLine(final ProtocolVersion ver, final int code,
final String reason) {
// arguments checked in BasicStatusLine constructor
this.statusline = new BasicStatusLine(ver, code, reason);
}
// non-javadoc, see interface HttpResponse
public void setStatusCode(int code) {
// argument checked in BasicStatusLine constructor
ProtocolVersion ver = this.statusline.getProtocolVersion();
this.statusline = new BasicStatusLine(ver, code, getReason(code));
}
// non-javadoc, see interface HttpResponse
public void setReasonPhrase(String reason) {
if ((reason != null) && ((reason.indexOf('\n') >= 0) ||
(reason.indexOf('\r') >= 0))
) {
throw new IllegalArgumentException("Line break in reason phrase.");
}
this.statusline = new BasicStatusLine(this.statusline.getProtocolVersion(),
this.statusline.getStatusCode(),
reason);
}
// non-javadoc, see interface HttpResponse
public void setEntity(final HttpEntity entity) {
this.entity = entity;
}
// non-javadoc, see interface HttpResponse
public void setLocale(Locale loc) {
if (loc == null) {
throw new IllegalArgumentException("Locale may not be null.");
}
this.locale = loc;
final int code = this.statusline.getStatusCode();
this.statusline = new BasicStatusLine
(this.statusline.getProtocolVersion(), code, getReason(code));
}
/**
* Looks up a reason phrase.
* This method evaluates the currently set catalog and locale.
* It also handles a missing catalog.
*
* @param code the status code for which to look up the reason
*
* @return the reason phrase, or <code>null</code> if there is none
*/
protected String getReason(int code) {
return (this.reasonCatalog == null) ?
null : this.reasonCatalog.getReason(code, this.locale);
}
}
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