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RsForward.java
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RsForward.java
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/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2018 Yegor Bugayenko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.takes.facets.forward;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.HttpURLConnection;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import org.takes.HttpException;
import org.takes.Response;
import org.takes.misc.Sprintf;
import org.takes.rs.RsEmpty;
import org.takes.rs.RsWithHeader;
import org.takes.rs.RsWithStatus;
import org.takes.rs.RsWithoutHeader;
/**
* Forwarding response.
*
* <p>The class is immutable and thread-safe.
*
* @since 0.1
*/
@ToString(callSuper = true, of = "origin")
@EqualsAndHashCode(callSuper = true, of = "origin")
public class RsForward extends HttpException implements Response {
/**
* Serialization marker.
*/
private static final long serialVersionUID = 7676888610908953700L;
/**
* Home page, by default.
*/
private static final String HOME = "/";
/**
* Original response.
*/
private final Response origin;
/**
* Ctor.
*/
public RsForward() {
this(new RsEmpty());
}
/**
* Ctor.
* @param res Original response
*/
public RsForward(final Response res) {
this(res, RsForward.HOME);
}
/**
* Ctor.
* @param res Original response
* @since 0.14
*/
public RsForward(final RsForward res) {
this(res.origin);
}
/**
* Ctor.
* @param res Original response
* @param loc Location
*/
public RsForward(final Response res, final CharSequence loc) {
this(res, HttpURLConnection.HTTP_SEE_OTHER, loc);
}
/**
* Ctor.
* @param res Original response
* @param loc Location
* @since 0.14
*/
public RsForward(final RsForward res, final CharSequence loc) {
this(res.origin, loc);
}
/**
* Ctor.
* @param loc Location
*/
public RsForward(final CharSequence loc) {
this(HttpURLConnection.HTTP_SEE_OTHER, loc);
}
/**
* Ctor.
* @param code HTTP status code
* @param loc Location
*/
public RsForward(final int code, final CharSequence loc) {
this(new RsEmpty(), code, loc);
}
/**
* Ctor.
* @param res Original
* @param code HTTP status code
* @since 0.17
*/
public RsForward(final Response res, final int code) {
this(res, code, RsForward.HOME);
}
/**
* Ctor.
* @param res Original
* @param code HTTP status code
* @param loc Location
* @since 0.14
*/
public RsForward(final RsForward res, final int code,
final CharSequence loc) {
this(res.origin, code, loc);
}
/**
* Ctor.
* @param res Original
* @param code HTTP status code
* @param loc Location
*/
public RsForward(final Response res, final int code,
final CharSequence loc) {
super(code, String.format("[%3d] %s %s", code, loc, res.toString()));
this.origin = new RsWithHeader(
new RsWithoutHeader(
new RsWithStatus(res, code),
"Location"
),
new Sprintf("Location: %s", loc)
);
}
@Override
public final Iterable<String> head() throws IOException {
return this.origin.head();
}
@Override
public final InputStream body() throws IOException {
return this.origin.body();
}
/**
* Set default object to write serializated data.
* @param stream Stream to write
* @throws IOException if fails
*/
private static void writeObject(
final ObjectOutputStream stream
) throws IOException {
stream.defaultWriteObject();
}
/**
* Set default object to read serializated data.
* @param stream Stream to read
* @throws IOException if fails
* @throws ClassNotFoundException if class doesn't exists
*/
private static void readObject(
final ObjectInputStream stream
) throws IOException, ClassNotFoundException {
stream.defaultReadObject();
}
}