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/*
* ====================================================================
* 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
* .
*
*/
package org.apache.http.message;
import java.util.Locale;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.ProtocolVersion;
import org.apache.http.ReasonPhraseCatalog;
import org.apache.http.StatusLine;
import org.apache.http.util.Args;
import org.apache.http.util.TextUtils;
/**
* Basic implementation of {@link HttpResponse}.
*
* @see org.apache.http.impl.DefaultHttpResponseFactory
*
* @since 4.0
*/
public class BasicHttpResponse extends AbstractHttpMessage implements HttpResponse {
private StatusLine statusline;
private ProtocolVersion ver;
private int code;
private String reasonPhrase;
private HttpEntity entity;
private final 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} to disable automatic
* reason phrase lookup
* @param locale the locale for looking up reason phrases, or
* {@code null} for the system locale
*/
public BasicHttpResponse(final StatusLine statusline,
final ReasonPhraseCatalog catalog,
final Locale locale) {
super();
this.statusline = Args.notNull(statusline, "Status line");
this.ver = statusline.getProtocolVersion();
this.code = statusline.getStatusCode();
this.reasonPhrase = statusline.getReasonPhrase();
this.reasonCatalog = catalog;
this.locale = locale;
}
/**
* 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) {
super();
this.statusline = Args.notNull(statusline, "Status line");
this.ver = statusline.getProtocolVersion();
this.code = statusline.getStatusCode();
this.reasonPhrase = statusline.getReasonPhrase();
this.reasonCatalog = null;
this.locale = 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}
*/
public BasicHttpResponse(final ProtocolVersion ver,
final int code,
final String reason) {
super();
Args.notNegative(code, "Status code");
this.statusline = null;
this.ver = ver;
this.code = code;
this.reasonPhrase = reason;
this.reasonCatalog = null;
this.locale = null;
}
// non-javadoc, see interface HttpMessage
@Override
public ProtocolVersion getProtocolVersion() {
return this.ver;
}
// non-javadoc, see interface HttpResponse
@Override
public StatusLine getStatusLine() {
if (this.statusline == null) {
this.statusline = new BasicStatusLine(
this.ver != null ? this.ver : HttpVersion.HTTP_1_1,
this.code,
this.reasonPhrase != null ? this.reasonPhrase : getReason(this.code));
}
return this.statusline;
}
// non-javadoc, see interface HttpResponse
@Override
public HttpEntity getEntity() {
return this.entity;
}
@Override
public Locale getLocale() {
return this.locale;
}
// non-javadoc, see interface HttpResponse
@Override
public void setStatusLine(final StatusLine statusline) {
this.statusline = Args.notNull(statusline, "Status line");
this.ver = statusline.getProtocolVersion();
this.code = statusline.getStatusCode();
this.reasonPhrase = statusline.getReasonPhrase();
}
// non-javadoc, see interface HttpResponse
@Override
public void setStatusLine(final ProtocolVersion ver, final int code) {
Args.notNegative(code, "Status code");
this.statusline = null;
this.ver = ver;
this.code = code;
this.reasonPhrase = null;
}
// non-javadoc, see interface HttpResponse
@Override
public void setStatusLine(
final ProtocolVersion ver, final int code, final String reason) {
Args.notNegative(code, "Status code");
this.statusline = null;
this.ver = ver;
this.code = code;
this.reasonPhrase = reason;
}
// non-javadoc, see interface HttpResponse
@Override
public void setStatusCode(final int code) {
Args.notNegative(code, "Status code");
this.statusline = null;
this.code = code;
this.reasonPhrase = null;
}
// non-javadoc, see interface HttpResponse
@Override
public void setReasonPhrase(final String reason) {
this.statusline = null;
this.reasonPhrase = TextUtils.isBlank(reason) ? null : reason;
}
// non-javadoc, see interface HttpResponse
@Override
public void setEntity(final HttpEntity entity) {
this.entity = entity;
}
@Override
public void setLocale(final Locale locale) {
this.locale = Args.notNull(locale, "Locale");
this.statusline = null;
}
/**
* 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} if there is none
*/
protected String getReason(final int code) {
return this.reasonCatalog != null ? this.reasonCatalog.getReason(code,
this.locale != null ? this.locale : Locale.getDefault()) : null;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append(getStatusLine());
sb.append(' ');
sb.append(this.headergroup);
if (this.entity != null) {
sb.append(' ');
sb.append(this.entity);
}
return sb.toString();
}
}
